| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Conflicts:
drivers/gpu/drm/msm/msm_gem_submit.c
drivers/media/v4l2-core/v4l2-compat-ioctl32.c
drivers/mmc/core/bus.c
drivers/net/wireless/iwlwifi/iwl-nvm-parse.c
drivers/scsi/ufs/ufshcd.h
kernel/power/process.c
net/wireless/nl80211.c
sound/usb/card.c
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[ Upstream commit 0f5da659d8f1810f44de14acf2c80cd6499623a0 ]
socket_diag shows information only about sockets from a namespace where
a diag socket lives.
But if we request information about one unix socket, the kernel don't
check that its netns is matched with a diag socket namespace, so any
user can get information about any unix socket in a system. This looks
like a bug.
v2: add a Fixes tag
Fixes: 51d7cccf0723 ("net: make sock diag per-namespace")
Signed-off-by: Andrei Vagin <avagin@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Linux 4.4.80
ASoC: dpcm: Avoid putting stream state to STOP when FE stream is paused
scsi: snic: Return error code on memory allocation failure
scsi: fnic: Avoid sending reset to firmware when another reset is in progress
HID: ignore Petzl USB headlamp
ALSA: usb-audio: test EP_FLAG_RUNNING at urb completion
sh_eth: enable RX descriptor word 0 shift on SH7734
nvmem: imx-ocotp: Fix wrong register size
arm64: mm: fix show_pte KERN_CONT fallout
vfio-pci: Handle error from pci_iomap
video: fbdev: cobalt_lcdfb: Handle return NULL error from devm_ioremap
perf symbols: Robustify reading of build-id from sysfs
perf tools: Install tools/lib/traceevent plugins with install-bin
xfrm: Don't use sk_family for socket policy lookups
tools lib traceevent: Fix prev/next_prio for deadline tasks
Btrfs: adjust outstanding_extents counter properly when dio write is split
usb: gadget: Fix copy/pasted error message
ACPI / scan: Prefer devices without _HID/_CID for _ADR matching
ARM: s3c2410_defconfig: Fix invalid values for NF_CT_PROTO_*
ARM64: zynqmp: Fix i2c node's compatible string
ARM64: zynqmp: Fix W=1 dtc 1.4 warnings
dmaengine: ti-dma-crossbar: Add some 'of_node_put()' in error path.
dmaengine: ioatdma: workaround SKX ioatdma version
dmaengine: ioatdma: Add Skylake PCI Dev ID
openrisc: Add _text symbol to fix ksym build error
irqchip/mxs: Enable SKIP_SET_WAKE and MASK_ON_SUSPEND
ASoC: nau8825: fix invalid configuration in Pre-Scalar of FLL
spi: dw: Make debugfs name unique between instances
ASoC: tlv320aic3x: Mark the RESET register as volatile
irqchip/keystone: Fix "scheduling while atomic" on rt
vfio-pci: use 32-bit comparisons for register address for gcc-4.5
drm/msm: Verify that MSM_SUBMIT_BO_FLAGS are set
drm/msm: Ensure that the hardware write pointer is valid
net/mlx4: Remove BUG_ON from ICM allocation routine
ipv6: Should use consistent conditional judgement for ip6 fragment between __ip6_append_data and ip6_finish_output
ARM: dts: n900: Mark eMMC slot with no-sdio and no-sd flags
r8169: add support for RTL8168 series add-on card.
x86/mce/AMD: Make the init code more robust
tpm: Replace device number bitmap with IDR
tpm: fix a kernel memory leak in tpm-sysfs.c
xen/blkback: don't use xen_blkif_get() in xen-blkback kthread
xen/blkback: don't free be structure too early
sched/cputime: Fix prev steal time accouting during CPU hotplug
net: skb_needs_check() accepts CHECKSUM_NONE for tx
pstore: Use dynamic spinlock initializer
pstore: Correctly initialize spinlock and flags
pstore: Allow prz to control need for locking
vlan: Propagate MAC address to VLANs
/proc/iomem: only expose physical resource addresses to privileged users
Make file credentials available to the seqfile interfaces
v4l: s5c73m3: fix negation operator
dentry name snapshots
ipmi/watchdog: fix watchdog timeout set on reboot
libnvdimm, btt: fix btt_rw_page not returning errors
RDMA/uverbs: Fix the check for port number
PM / Domains: defer dev_pm_domain_set() until genpd->attach_dev succeeds if present
sched/cgroup: Move sched_online_group() back into css_online() to fix crash
kaweth: fix oops upon failed memory allocation
kaweth: fix firmware download
mpt3sas: Don't overreach ioc->reply_post[] during initialization
mailbox: handle empty message in tx_tick
mailbox: skip complete wait event if timer expired
mailbox: always wait in mbox_send_message for blocking Tx mode
wil6210: fix deadlock when using fw_no_recovery option
ath10k: fix null deref on wmi-tlv when trying spectral scan
isdn/i4l: fix buffer overflow
isdn: Fix a sleep-in-atomic bug
net: phy: Do not perform software reset for Generic PHY
nfc: fdp: fix NULL pointer dereference
xfs: don't BUG() on mixed direct and mapped I/O
perf intel-pt: Ensure never to set 'last_ip' when packet 'count' is zero
perf intel-pt: Use FUP always when scanning for an IP
perf intel-pt: Fix last_ip usage
perf intel-pt: Fix ip compression
drm: rcar-du: Simplify and fix probe error handling
drm: rcar-du: Perform initialization/cleanup at probe/remove time
drm/rcar: Nuke preclose hook
Staging: comedi: comedi_fops: Avoid orphaned proc entry
Revert "powerpc/numa: Fix percpu allocations to be NUMA aware"
KVM: PPC: Book3S HV: Save/restore host values of debug registers
KVM: PPC: Book3S HV: Reload HTM registers explicitly
KVM: PPC: Book3S HV: Restore critical SPRs to host values on guest exit
KVM: PPC: Book3S HV: Context-switch EBB registers properly
drm/nouveau/bar/gf100: fix access to upper half of BAR2
drm/vmwgfx: Fix gcc-7.1.1 warning
md/raid5: add thread_group worker async_tx_issue_pending_all
crypto: authencesn - Fix digest_null crash
powerpc/pseries: Fix of_node_put() underflow during reconfig remove
net: reduce skb_warn_bad_offload() noise
pstore: Make spinlock per zone instead of global
af_key: Add lock to key dump
Linux 4.4.79
alarmtimer: don't rate limit one-shot timers
tracing: Fix kmemleak in instance_rmdir
spmi: Include OF based modalias in device uevent
of: device: Export of_device_{get_modalias, uvent_modalias} to modules
drm/mst: Avoid processing partially received up/down message transactions
drm/mst: Avoid dereferencing a NULL mstb in drm_dp_mst_handle_up_req()
drm/mst: Fix error handling during MST sideband message reception
RDMA/core: Initialize port_num in qp_attr
ceph: fix race in concurrent readdir
staging: rtl8188eu: add TL-WN722N v2 support
Revert "perf/core: Drop kernel samples even though :u is specified"
perf annotate: Fix broken arrow at row 0 connecting jmp instruction to its target
target: Fix COMPARE_AND_WRITE caw_sem leak during se_cmd quiesce
udf: Fix deadlock between writeback and udf_setsize()
NFS: only invalidate dentrys that are clearly invalid.
Input: i8042 - fix crash at boot time
MIPS: Fix a typo: s/preset/present/ in r2-to-r6 emulation error message
MIPS: Send SIGILL for linked branches in `__compute_return_epc_for_insn'
MIPS: Rename `sigill_r6' to `sigill_r2r6' in `__compute_return_epc_for_insn'
MIPS: Send SIGILL for BPOSGE32 in `__compute_return_epc_for_insn'
MIPS: math-emu: Prevent wrong ISA mode instruction emulation
MIPS: Fix unaligned PC interpretation in `compute_return_epc'
MIPS: Actually decode JALX in `__compute_return_epc_for_insn'
MIPS: Save static registers before sysmips
MIPS: Fix MIPS I ISA /proc/cpuinfo reporting
x86/ioapic: Pass the correct data to unmask_ioapic_irq()
x86/acpi: Prevent out of bound access caused by broken ACPI tables
MIPS: Negate error syscall return in trace
MIPS: Fix mips_atomic_set() with EVA
MIPS: Fix mips_atomic_set() retry condition
ftrace: Fix uninitialized variable in match_records()
vfio: New external user group/file match
vfio: Fix group release deadlock
f2fs: Don't clear SGID when inheriting ACLs
ipmi:ssif: Add missing unlock in error branch
ipmi: use rcu lock around call to intf->handlers->sender()
drm/radeon: Fix eDP for single-display iMac10,1 (v2)
drm/radeon/ci: disable mclk switching for high refresh rates (v2)
drm/amd/amdgpu: Return error if initiating read out of range on vram
s390/syscalls: Fix out of bounds arguments access
Raid5 should update rdev->sectors after reshape
cx88: Fix regression in initial video standard setting
x86/xen: allow userspace access during hypercalls
md: don't use flush_signals in userspace processes
usb: renesas_usbhs: gadget: disable all eps when the driver stops
usb: renesas_usbhs: fix usbhsc_resume() for !USBHSF_RUNTIME_PWCTRL
USB: cdc-acm: add device-id for quirky printer
usb: storage: return on error to avoid a null pointer dereference
xhci: Fix NULL pointer dereference when cleaning up streams for removed host
xhci: fix 20000ms port resume timeout
ipvs: SNAT packet replies only for NATed connections
PCI/PM: Restore the status of PCI devices across hibernation
af_key: Fix sadb_x_ipsecrequest parsing
powerpc/asm: Mark cr0 as clobbered in mftb()
powerpc: Fix emulation of mfocrf in emulate_step()
powerpc: Fix emulation of mcrf in emulate_step()
powerpc/64: Fix atomic64_inc_not_zero() to return an int
iscsi-target: Add login_keys_workaround attribute for non RFC initiators
scsi: ses: do not add a device to an enclosure if enclosure_add_links() fails.
PM / Domains: Fix unsafe iteration over modified list of domain providers
PM / Domains: Fix unsafe iteration over modified list of device links
ASoC: compress: Derive substream from stream based on direction
wlcore: fix 64K page support
Bluetooth: use constant time memory comparison for secret values
perf intel-pt: Clear FUP flag on error
perf intel-pt: Ensure IP is zero when state is INTEL_PT_STATE_NO_IP
perf intel-pt: Fix missing stack clear
perf intel-pt: Improve sample timestamp
perf intel-pt: Move decoder error setting into one condition
NFC: Add sockaddr length checks before accessing sa_family in bind handlers
nfc: Fix the sockaddr length sanitization in llcp_sock_connect
nfc: Ensure presence of required attributes in the activate_target handler
NFC: nfcmrvl: fix firmware-management initialisation
NFC: nfcmrvl: use nfc-device for firmware download
NFC: nfcmrvl: do not use device-managed resources
NFC: nfcmrvl_uart: add missing tty-device sanity check
NFC: fix broken device allocation
ath9k: fix tx99 bus error
ath9k: fix tx99 use after free
thermal: cpu_cooling: Avoid accessing potentially freed structures
s5p-jpeg: don't return a random width/height
ir-core: fix gcc-7 warning on bool arithmetic
disable new gcc-7.1.1 warnings for now
Linux 4.4.78
kvm: vmx: allow host to access guest MSR_IA32_BNDCFGS
kvm: vmx: Check value written to IA32_BNDCFGS
kvm: x86: Guest BNDCFGS requires guest MPX support
kvm: vmx: Do not disable intercepts for BNDCFGS
KVM: x86: disable MPX if host did not enable MPX XSAVE features
tracing: Use SOFTIRQ_OFFSET for softirq dectection for more accurate results
PM / QoS: return -EINVAL for bogus strings
PM / wakeirq: Convert to SRCU
sched/topology: Optimize build_group_mask()
sched/topology: Fix overlapping sched_group_mask
crypto: caam - fix signals handling
crypto: sha1-ssse3 - Disable avx2
crypto: atmel - only treat EBUSY as transient if backlog
crypto: talitos - Extend max key length for SHA384/512-HMAC and AEAD
mm: fix overflow check in expand_upwards()
tpm: Issue a TPM2_Shutdown for TPM2 devices.
Add "shutdown" to "struct class".
tpm: Provide strong locking for device removal
tpm: Get rid of chip->pdev
selftests/capabilities: Fix the test_execve test
mnt: Make propagate_umount less slow for overlapping mount propagation trees
mnt: In propgate_umount handle visiting mounts in any order
mnt: In umount propagation reparent in a separate pass
vt: fix unchecked __put_user() in tioclinux ioctls
exec: Limit arg stack to at most 75% of _STK_LIM
s390: reduce ELF_ET_DYN_BASE
powerpc: move ELF_ET_DYN_BASE to 4GB / 4MB
arm64: move ELF_ET_DYN_BASE to 4GB / 4MB
arm: move ELF_ET_DYN_BASE to 4MB
binfmt_elf: use ELF_ET_DYN_BASE only for PIE
checkpatch: silence perl 5.26.0 unescaped left brace warnings
fs/dcache.c: fix spin lockup issue on nlru->lock
mm/list_lru.c: fix list_lru_count_node() to be race free
kernel/extable.c: mark core_kernel_text notrace
tools/lib/lockdep: Reduce MAX_LOCK_DEPTH to avoid overflowing lock_chain/: Depth
parisc/mm: Ensure IRQs are off in switch_mm()
parisc: DMA API: return error instead of BUG_ON for dma ops on non dma devs
parisc: use compat_sys_keyctl()
parisc: Report SIGSEGV instead of SIGBUS when running out of stack
irqchip/gic-v3: Fix out-of-bound access in gic_set_affinity
cfg80211: Check if PMKID attribute is of expected size
cfg80211: Validate frequencies nested in NL80211_ATTR_SCAN_FREQUENCIES
cfg80211: Define nla_policy for NL80211_ATTR_LOCAL_MESH_POWER_MODE
brcmfmac: fix possible buffer overflow in brcmf_cfg80211_mgmt_tx()
rds: tcp: use sock_create_lite() to create the accept socket
vrf: fix bug_on triggered by rx when destroying a vrf
net: ipv6: Compare lwstate in detecting duplicate nexthops
ipv6: dad: don't remove dynamic addresses if link is down
net: handle NAPI_GRO_FREE_STOLEN_HEAD case also in napi_frags_finish()
bpf: prevent leaking pointer via xadd on unpriviledged
net: prevent sign extension in dev_get_stats()
tcp: reset sk_rx_dst in tcp_disconnect()
net: dp83640: Avoid NULL pointer dereference.
ipv6: avoid unregistering inet6_dev for loopback
net/phy: micrel: configure intterupts after autoneg workaround
net: sched: Fix one possible panic when no destroy callback
net_sched: fix error recovery at qdisc creation
Linux 4.4.77
saa7134: fix warm Medion 7134 EEPROM read
x86/mm/pat: Don't report PAT on CPUs that don't support it
ext4: check return value of kstrtoull correctly in reserved_clusters_store
staging: comedi: fix clean-up of comedi_class in comedi_init()
staging: vt6556: vnt_start Fix missing call to vnt_key_init_table.
tcp: fix tcp_mark_head_lost to check skb len before fragmenting
md: fix super_offset endianness in super_1_rdev_size_change
md: fix incorrect use of lexx_to_cpu in does_sb_need_changing
perf tools: Use readdir() instead of deprecated readdir_r() again
perf tests: Remove wrong semicolon in while loop in CQM test
perf trace: Do not process PERF_RECORD_LOST twice
perf dwarf: Guard !x86_64 definitions under #ifdef else clause
perf pmu: Fix misleadingly indented assignment (whitespace)
perf annotate browser: Fix behaviour of Shift-Tab with nothing focussed
perf tools: Remove duplicate const qualifier
perf script: Use readdir() instead of deprecated readdir_r()
perf thread_map: Use readdir() instead of deprecated readdir_r()
perf tools: Use readdir() instead of deprecated readdir_r()
perf bench numa: Avoid possible truncation when using snprintf()
perf tests: Avoid possible truncation with dirent->d_name + snprintf
perf scripting perl: Fix compile error with some perl5 versions
perf thread_map: Correctly size buffer used with dirent->dt_name
perf intel-pt: Use __fallthrough
perf top: Use __fallthrough
tools strfilter: Use __fallthrough
tools string: Use __fallthrough in perf_atoll()
tools include: Add a __fallthrough statement
mqueue: fix a use-after-free in sys_mq_notify()
RDMA/uverbs: Check port number supplied by user verbs cmds
KEYS: Fix an error code in request_master_key()
ath10k: override CE5 config for QCA9377
x86/uaccess: Optimize copy_user_enhanced_fast_string() for short strings
x86/tools: Fix gcc-7 warning in relocs.c
gfs2: Fix glock rhashtable rcu bug
USB: serial: qcserial: new Sierra Wireless EM7305 device ID
USB: serial: option: add two Longcheer device ids
pinctrl: sh-pfc: Update info pointer after SoC-specific init
pinctrl: mxs: atomically switch mux and drive strength config
pinctrl: sunxi: Fix SPDIF function name for A83T
pinctrl: meson: meson8b: fix the NAND DQS pins
pinctrl: sh-pfc: r8a7791: Fix SCIF2 pinmux data
sysctl: report EINVAL if value is larger than UINT_MAX for proc_douintvec
sysctl: don't print negative flag for proc_douintvec
mac80211_hwsim: Replace bogus hrtimer clockid
usb: Fix typo in the definition of Endpoint[out]Request
usb: usbip: set buffer pointers to NULL after free
Add USB quirk for HVR-950q to avoid intermittent device resets
USB: serial: cp210x: add ID for CEL EM3588 USB ZigBee stick
usb: dwc3: replace %p with %pK
drm/virtio: don't leak bo on drm_gem_object_init failure
tracing/kprobes: Allow to create probe with a module name starting with a digit
mm: fix classzone_idx underflow in shrink_zones()
bgmac: reset & enable Ethernet core before using it
driver core: platform: fix race condition with driver_override
fs: completely ignore unknown open flags
fs: add a VALID_OPEN_FLAGS
Linux 4.4.76
KVM: nVMX: Fix exception injection
KVM: x86: zero base3 of unusable segments
KVM: x86/vPMU: fix undefined shift in intel_pmu_refresh()
KVM: x86: fix emulation of RSM and IRET instructions
cpufreq: s3c2416: double free on driver init error path
iommu/amd: Fix incorrect error handling in amd_iommu_bind_pasid()
iommu: Handle default domain attach failure
iommu/vt-d: Don't over-free page table directories
ocfs2: o2hb: revert hb threshold to keep compatible
x86/mm: Fix flush_tlb_page() on Xen
x86/mpx: Correctly report do_mpx_bt_fault() failures to user-space
ARM: 8685/1: ensure memblock-limit is pmd-aligned
ARM64/ACPI: Fix BAD_MADT_GICC_ENTRY() macro implementation
sched/loadavg: Avoid loadavg spikes caused by delayed NO_HZ accounting
watchdog: bcm281xx: Fix use of uninitialized spinlock.
xfrm: Oops on error in pfkey_msg2xfrm_state()
xfrm: NULL dereference on allocation failure
xfrm: fix stack access out of bounds with CONFIG_XFRM_SUB_POLICY
jump label: fix passing kbuild_cflags when checking for asm goto support
ravb: Fix use-after-free on `ifconfig eth0 down`
sctp: check af before verify address in sctp_addr_id2transport
net/mlx4_core: Eliminate warning messages for SRQ_LIMIT under SRIOV
perf probe: Fix to show correct locations for events on modules
be2net: fix status check in be_cmd_pmac_add()
s390/ctl_reg: make __ctl_load a full memory barrier
swiotlb: ensure that page-sized mappings are page-aligned
coredump: Ensure proper size of sparse core files
x86/mpx: Use compatible types in comparison to fix sparse error
mac80211: initialize SMPS field in HT capabilities
spi: davinci: use dma_mapping_error()
scsi: lpfc: avoid double free of resource identifiers
HID: i2c-hid: Add sleep between POWER ON and RESET
kernel/panic.c: add missing \n
ibmveth: Add a proper check for the availability of the checksum features
vxlan: do not age static remote mac entries
virtio_net: fix PAGE_SIZE > 64k
vfio/spapr: fail tce_iommu_attach_group() when iommu_data is null
drm/amdgpu: check ring being ready before using
net: dsa: Check return value of phy_connect_direct()
amd-xgbe: Check xgbe_init() return code
platform/x86: ideapad-laptop: handle ACPI event 1
scsi: virtio_scsi: Reject commands when virtqueue is broken
xen-netfront: Fix Rx stall during network stress and OOM
swiotlb-xen: update dev_addr after swapping pages
virtio_console: fix a crash in config_work_handler
Btrfs: fix truncate down when no_holes feature is enabled
gianfar: Do not reuse pages from emergency reserve
powerpc/eeh: Enable IO path on permanent error
net: bgmac: Remove superflous netif_carrier_on()
net: bgmac: Start transmit queue in bgmac_open
net: bgmac: Fix SOF bit checking
bgmac: Fix reversed test of build_skb() return value.
mtd: bcm47xxpart: don't fail because of bit-flips
bgmac: fix a missing check for build_skb
mtd: bcm47xxpart: limit scanned flash area on BCM47XX (MIPS) only
MIPS: ralink: fix MT7628 wled_an pinmux gpio
MIPS: ralink: fix MT7628 pinmux typos
MIPS: ralink: Fix invalid assignment of SoC type
MIPS: ralink: fix USB frequency scaling
MIPS: ralink: MT7688 pinmux fixes
net: korina: Fix NAPI versus resources freeing
MIPS: ath79: fix regression in PCI window initialization
net: mvneta: Fix for_each_present_cpu usage
ARM: dts: BCM5301X: Correct GIC_PPI interrupt flags
qla2xxx: Fix erroneous invalid handle message
scsi: lpfc: Set elsiocb contexts to NULL after freeing it
scsi: sd: Fix wrong DPOFUA disable in sd_read_cache_type
KVM: x86: fix fixing of hypercalls
mm: numa: avoid waiting on freed migrated pages
block: fix module reference leak on put_disk() call for cgroups throttle
sysctl: enable strict writes
usb: gadget: f_fs: Fix possibe deadlock
drm/vmwgfx: Free hash table allocated by cmdbuf managed res mgr
ALSA: hda - set input_path bitmap to zero after moving it to new place
ALSA: hda - Fix endless loop of codec configure
MIPS: Fix IRQ tracing & lockdep when rescheduling
MIPS: pm-cps: Drop manual cache-line alignment of ready_count
MIPS: Avoid accidental raw backtrace
mm, swap_cgroup: reschedule when neeed in swap_cgroup_swapoff()
drm/ast: Handle configuration without P2A bridge
NFSv4: fix a reference leak caused WARNING messages
netfilter: synproxy: fix conntrackd interaction
netfilter: xt_TCPMSS: add more sanity tests on tcph->doff
rtnetlink: add IFLA_GROUP to ifla_policy
ipv6: Do not leak throw route references
sfc: provide dummy definitions of vswitch functions
net: 8021q: Fix one possible panic caused by BUG_ON in free_netdev
decnet: always not take dst->__refcnt when inserting dst into hash table
net/mlx5: Wait for FW readiness before initializing command interface
ipv6: fix calling in6_ifa_hold incorrectly for dad work
igmp: add a missing spin_lock_init()
igmp: acquire pmc lock for ip_mc_clear_src()
net: caif: Fix a sleep-in-atomic bug in cfpkt_create_pfx
Fix an intermittent pr_emerg warning about lo becoming free.
af_unix: Add sockaddr length checks before accessing sa_family in bind and connect handlers
net: Zero ifla_vf_info in rtnl_fill_vfinfo()
decnet: dn_rtmsg: Improve input length sanitization in dnrmg_receive_user_skb
net: don't call strlen on non-terminated string in dev_set_alias()
ipv6: release dst on error in ip6_dst_lookup_tail
Linux 4.4.75
nvme: apply DELAY_BEFORE_CHK_RDY quirk at probe time too
nvme/quirk: Add a delay before checking for adapter readiness
net: phy: fix marvell phy status reading
net: phy: Initialize mdio clock at probe function
usb: gadget: f_fs: avoid out of bounds access on comp_desc
powerpc/slb: Force a full SLB flush when we insert for a bad EA
mtd: spi-nor: fix spansion quad enable
of: Add check to of_scan_flat_dt() before accessing initial_boot_params
rxrpc: Fix several cases where a padded len isn't checked in ticket decode
USB: usbip: fix nonconforming hub descriptor
drm/amdgpu: adjust default display clock
drm/amdgpu/atom: fix ps allocation size for EnableDispPowerGating
drm/radeon: add a quirk for Toshiba Satellite L20-183
drm/radeon: add a PX quirk for another K53TK variant
iscsi-target: Reject immediate data underflow larger than SCSI transfer length
target: Fix kref->refcount underflow in transport_cmd_finish_abort
time: Fix clock->read(clock) race around clocksource changes
Input: i8042 - add Fujitsu Lifebook AH544 to notimeout list
powerpc/kprobes: Pause function_graph tracing during jprobes handling
signal: Only reschedule timers on signals timers have sent
HID: Add quirk for Dell PIXART OEM mouse
CIFS: Improve readdir verbosity
KVM: PPC: Book3S HV: Preserve userspace HTM state properly
lib/cmdline.c: fix get_options() overflow while parsing ranges
autofs: sanity check status reported with AUTOFS_DEV_IOCTL_FAIL
fs/exec.c: account for argv/envp pointers
Linux 4.4.74
mm: fix new crash in unmapped_area_topdown()
Allow stack to grow up to address space limit
mm: larger stack guard gap, between vmas
alarmtimer: Rate limit periodic intervals
MIPS: Fix bnezc/jialc return address calculation
usb: dwc3: exynos fix axius clock error path to do cleanup
alarmtimer: Prevent overflow of relative timers
genirq: Release resources in __setup_irq() error path
swap: cond_resched in swap_cgroup_prepare()
mm/memory-failure.c: use compound_head() flags for huge pages
USB: gadgetfs, dummy-hcd, net2280: fix locking for callbacks
usb: xhci: ASMedia ASM1042A chipset need shorts TX quirk
drivers/misc/c2port/c2port-duramar2150.c: checking for NULL instead of IS_ERR()
usb: r8a66597-hcd: decrease timeout
usb: r8a66597-hcd: select a different endpoint on timeout
USB: gadget: dummy_hcd: fix hub-descriptor removable fields
pvrusb2: reduce stack usage pvr2_eeprom_analyze()
usb: core: fix potential memory leak in error path during hcd creation
USB: hub: fix SS max number of ports
iio: proximity: as3935: recalibrate RCO after resume
staging: rtl8188eu: prevent an underflow in rtw_check_beacon_data()
mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode
x86/mm/32: Set the '__vmalloc_start_set' flag in initmem_init()
serial: efm32: Fix parity management in 'efm32_uart_console_get_options()'
mac80211: fix IBSS presp allocation size
mac80211: fix CSA in IBSS mode
mac80211/wpa: use constant time memory comparison for MACs
mac80211: don't look at the PM bit of BAR frames
vb2: Fix an off by one error in 'vb2_plane_vaddr'
cpufreq: conservative: Allow down_threshold to take values from 1 to 10
can: gs_usb: fix memory leak in gs_cmd_reset()
configfs: Fix race between create_link and configfs_rmdir
Linux 4.4.73
sparc64: make string buffers large enough
s390/kvm: do not rely on the ILC on kvm host protection fauls
xtensa: don't use linux IRQ #0
tipc: ignore requests when the connection state is not CONNECTED
proc: add a schedule point in proc_pid_readdir()
romfs: use different way to generate fsid for BLOCK or MTD
sctp: sctp_addr_id2transport should verify the addr before looking up assoc
r8152: avoid start_xmit to schedule napi when napi is disabled
r8152: fix rtl8152_post_reset function
r8152: re-schedule napi for tx
nfs: Fix "Don't increment lock sequence ID after NFS4ERR_MOVED"
ravb: unmap descriptors when freeing rings
drm/ast: Fixed system hanged if disable P2A
drm/nouveau: Don't enabling polling twice on runtime resume
parisc, parport_gsc: Fixes for printk continuation lines
net: adaptec: starfire: add checks for dma mapping errors
pinctrl: berlin-bg4ct: fix the value for "sd1a" of pin SCRD0_CRD_PRES
gianfar: synchronize DMA API usage by free_skb_rx_queue w/ gfar_new_page
net/mlx4_core: Avoid command timeouts during VF driver device shutdown
drm/nouveau/fence/g84-: protect against concurrent access to semaphore buffers
drm/nouveau: prevent userspace from deleting client object
ipv6: fix flow labels when the traffic class is non-0
FS-Cache: Initialise stores_lock in netfs cookie
fscache: Clear outstanding writes when disabling a cookie
fscache: Fix dead object requeue
ethtool: do not vzalloc(0) on registers dump
log2: make order_base_2() behave correctly on const input value zero
kasan: respect /proc/sys/kernel/traceoff_on_warning
jump label: pass kbuild_cflags when checking for asm goto support
PM / runtime: Avoid false-positive warnings from might_sleep_if()
ipv6: Fix IPv6 packet loss in scenarios involving roaming + snooping switches
i2c: piix4: Fix request_region size
sierra_net: Add support for IPv6 and Dual-Stack Link Sense Indications
sierra_net: Skip validating irrelevant fields for IDLE LSIs
net: hns: Fix the device being used for dma mapping during TX
NET: mkiss: Fix panic
NET: Fix /proc/net/arp for AX.25
ipv6: Inhibit IPv4-mapped src address on the wire.
ipv6: Handle IPv4-mapped src to in6addr_any dst.
net: xilinx_emaclite: fix receive buffer overflow
net: xilinx_emaclite: fix freezes due to unordered I/O
Call echo service immediately after socket reconnect
staging: rtl8192e: rtl92e_fill_tx_desc fix write to mapped out memory.
ARM: dts: imx6dl: Fix the VDD_ARM_CAP voltage for 396MHz operation
partitions/msdos: FreeBSD UFS2 file systems are not recognized
s390/vmem: fix identity mapping
Linux 4.4.72
arm64: ensure extension of smp_store_release value
arm64: armv8_deprecated: ensure extension of addr
usercopy: Adjust tests to deal with SMAP/PAN
RDMA/qib,hfi1: Fix MR reference count leak on write with immediate
arm64: entry: improve data abort handling of tagged pointers
arm64: hw_breakpoint: fix watchpoint matching for tagged pointers
Make __xfs_xattr_put_listen preperly report errors.
NFSv4: Don't perform cached access checks before we've OPENed the file
NFS: Ensure we revalidate attributes before using execute_ok()
mm: consider memblock reservations for deferred memory initialization sizing
net: better skb->sender_cpu and skb->napi_id cohabitation
serial: sh-sci: Fix panic when serial console and DMA are enabled
tty: Drop krefs for interrupted tty lock
drivers: char: mem: Fix wraparound check to allow mappings up to the end
ASoC: Fix use-after-free at card unregistration
ALSA: timer: Fix missing queue indices reset at SNDRV_TIMER_IOCTL_SELECT
ALSA: timer: Fix race between read and ioctl
drm/nouveau/tmr: fully separate alarm execution/pending lists
drm/vmwgfx: Make sure backup_handle is always valid
drm/vmwgfx: limit the number of mip levels in vmw_gb_surface_define_ioctl()
drm/vmwgfx: Handle vmalloc() failure in vmw_local_fifo_reserve()
perf/core: Drop kernel samples even though :u is specified
powerpc/hotplug-mem: Fix missing endian conversion of aa_index
powerpc/numa: Fix percpu allocations to be NUMA aware
powerpc/eeh: Avoid use after free in eeh_handle_special_event()
scsi: qla2xxx: don't disable a not previously enabled PCI device
KVM: arm/arm64: Handle possible NULL stage2 pud when ageing pages
btrfs: fix memory leak in update_space_info failure path
btrfs: use correct types for page indices in btrfs_page_exists_in_range
cxl: Fix error path on bad ioctl
ufs_getfrag_block(): we only grab ->truncate_mutex on block creation path
ufs_extend_tail(): fix the braino in calling conventions of ufs_new_fragments()
ufs: set correct ->s_maxsize
ufs: restore maintaining ->i_blocks
fix ufs_isblockset()
ufs: restore proper tail allocation
fs: add i_blocksize()
cpuset: consider dying css as offline
Input: elantech - add Fujitsu Lifebook E546/E557 to force crc_enabled
drm/msm: Expose our reservation object when exporting a dmabuf.
target: Re-add check to reject control WRITEs with overflow data
cpufreq: cpufreq_register_driver() should return -ENODEV if init fails
stackprotector: Increase the per-task stack canary's random range from 32 bits to 64 bits on 64-bit platforms
random: properly align get_random_int_hash
drivers: char: random: add get_random_long()
iio: proximity: as3935: fix AS3935_INT mask
iio: light: ltr501 Fix interchanged als/ps register field
staging/lustre/lov: remove set_fs() call from lov_getstripe()
usb: chipidea: debug: check before accessing ci_role
usb: chipidea: udc: fix NULL pointer dereference if udc_start failed
usb: gadget: f_mass_storage: Serialize wake and sleep execution
ext4: fix fdatasync(2) after extent manipulation operations
ext4: keep existing extra fields when inode expands
ext4: fix SEEK_HOLE
xen-netfront: cast grant table reference first to type int
xen-netfront: do not cast grant table reference to signed short
xen/privcmd: Support correctly 64KB page granularity when mapping memory
dmaengine: ep93xx: Always start from BASE0
dmaengine: usb-dmac: Fix DMAOR AE bit definition
KVM: async_pf: avoid async pf injection when in guest mode
arm: KVM: Allow unaligned accesses at HYP
KVM: cpuid: Fix read/write out-of-bounds vulnerability in cpuid emulation
kvm: async_pf: fix rcu_irq_enter() with irqs enabled
nfsd: Fix up the "supattr_exclcreat" attributes
nfsd4: fix null dereference on replay
drm/amdgpu/ci: disable mclk switching for high refresh rates (v2)
crypto: gcm - wait for crypto op not signal safe
KEYS: fix freeing uninitialized memory in key_update()
KEYS: fix dereferencing NULL payload with nonzero length
ptrace: Properly initialize ptracer_cred on fork
serial: ifx6x60: fix use-after-free on module unload
arch/sparc: support NR_CPUS = 4096
sparc64: delete old wrap code
sparc64: new context wrap
sparc64: add per-cpu mm of secondary contexts
sparc64: redefine first version
sparc64: combine activate_mm and switch_mm
sparc64: reset mm cpumask after wrap
sparc: Machine description indices can vary
sparc64: mm: fix copy_tsb to correctly copy huge page TSBs
net: bridge: start hello timer only if device is up
net: ethoc: enable NAPI before poll may be scheduled
net: ping: do not abuse udp_poll()
ipv6: Fix leak in ipv6_gso_segment().
vxlan: fix use-after-free on deletion
tcp: disallow cwnd undo when switching congestion control
cxgb4: avoid enabling napi twice to the same queue
ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt()
bnx2x: Fix Multi-Cos
Linux 4.4.71
xfs: only return -errno or success from attr ->put_listent
xfs: in _attrlist_by_handle, copy the cursor back to userspace
xfs: fix unaligned access in xfs_btree_visit_blocks
xfs: bad assertion for delalloc an extent that start at i_size
xfs: fix indlen accounting error on partial delalloc conversion
xfs: wait on new inodes during quotaoff dquot release
xfs: update ag iterator to support wait on new inodes
xfs: support ability to wait on new inodes
xfs: fix up quotacheck buffer list error handling
xfs: prevent multi-fsb dir readahead from reading random blocks
xfs: handle array index overrun in xfs_dir2_leaf_readbuf()
xfs: fix over-copying of getbmap parameters from userspace
xfs: fix off-by-one on max nr_pages in xfs_find_get_desired_pgoff()
xfs: Fix missed holes in SEEK_HOLE implementation
mlock: fix mlock count can not decrease in race condition
mm/migrate: fix refcount handling when !hugepage_migration_supported()
drm/gma500/psb: Actually use VBT mode when it is found
slub/memcg: cure the brainless abuse of sysfs attributes
ALSA: hda - apply STAC_9200_DELL_M22 quirk for Dell Latitude D430
pcmcia: remove left-over %Z format
drm/radeon: Unbreak HPD handling for r600+
drm/radeon/ci: disable mclk switching for high refresh rates (v2)
scsi: mpt3sas: Force request partial completion alignment
HID: wacom: Have wacom_tpc_irq guard against possible NULL dereference
mmc: sdhci-iproc: suppress spurious interrupt with Multiblock read
i2c: i2c-tiny-usb: fix buffer not being DMA capable
vlan: Fix tcp checksum offloads in Q-in-Q vlans
net: phy: marvell: Limit errata to 88m1101
netem: fix skb_orphan_partial()
ipv4: add reference counting to metrics
sctp: fix ICMP processing if skb is non-linear
tcp: avoid fastopen API to be used on AF_UNSPEC
virtio-net: enable TSO/checksum offloads for Q-in-Q vlans
be2net: Fix offload features for Q-in-Q packets
ipv6: fix out of bound writes in __ip6_append_data()
bridge: start hello_timer when enabling KERNEL_STP in br_stp_start
qmi_wwan: add another Lenovo EM74xx device ID
bridge: netlink: check vlan_default_pvid range
ipv6: Check ip6_find_1stfragopt() return value properly.
ipv6: Prevent overrun when parsing v6 header options
net: Improve handling of failures on link and route dumps
tcp: eliminate negative reordering in tcp_clean_rtx_queue
sctp: do not inherit ipv6_{mc|ac|fl}_list from parent
sctp: fix src address selection if using secondary addresses for ipv6
tcp: avoid fragmenting peculiar skbs in SACK
s390/qeth: avoid null pointer dereference on OSN
s390/qeth: unbreak OSM and OSN support
s390/qeth: handle sysfs error during initialization
ipv6/dccp: do not inherit ipv6_mc_list from parent
dccp/tcp: do not inherit mc_list from parent
sparc: Fix -Wstringop-overflow warning
Bug: 62730977
Change-Id: Ifca755d82f9e4b11016f6660298c2c1b073bfb3a
Signed-off-by: Thierry Strudel <tstrudel@google.com>
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connect handlers
[ Upstream commit defbcf2decc903a28d8398aa477b6881e711e3ea ]
Verify that the caller-provided sockaddr structure is large enough to
contain the sa_family field, before accessing it in bind() and connect()
handlers of the AF_UNIX socket. Since neither syscall enforces a minimum
size of the corresponding memory region, very short sockaddrs (zero or
one byte long) result in operating on uninitialized memory while
referencing .sa_family.
Signed-off-by: Mateusz Jurczyk <mjurczyk@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Linux 4.4.60
padata: avoid race in reordering
blk: Ensure users for current->bio_list can see the full list.
blk: improve order of bio handling in generic_make_request()
power: reset: at91-poweroff: timely shutdown LPDDR memories
KVM: kvm_io_bus_unregister_dev() should never fail
rtc: s35390a: improve irq handling
rtc: s35390a: implement reset routine as suggested by the reference
rtc: s35390a: make sure all members in the output are set
rtc: s35390a: fix reading out alarm
MIPS: Lantiq: Fix cascaded IRQ setup
mm, hugetlb: use pte_present() instead of pmd_present() in follow_huge_pmd()
drm/radeon: Override fpfn for all VRAM placements in radeon_evict_flags
KVM: x86: clear bus pointer when destroyed
USB: fix linked-list corruption in rh_call_control()
tty/serial: atmel: fix TX path in atmel_console_write()
tty/serial: atmel: fix race condition (TX+DMA)
ACPI: Do not create a platform_device for IOAPIC/IOxAPIC
ACPI: Fix incompatibility with mcount-based function graph tracing
ASoC: atmel-classd: fix audio clock rate
ALSA: hda - fix a problem for lineout on a Dell AIO machine
ALSA: seq: Fix race during FIFO resize
scsi: libsas: fix ata xfer length
scsi: sg: check length passed to SG_NEXT_CMD_LEN
scsi: mpt3sas: fix hang on ata passthrough commands
xen/setup: Don't relocate p2m over existing one
libceph: force GFP_NOIO for socket allocations
Linux 4.4.59
sched/rt: Add a missing rescheduling point
fscrypt: remove broken support for detecting keyring key revocation
metag/ptrace: Reject partial NT_METAG_RPIPE writes
metag/ptrace: Provide default TXSTATUS for short NT_PRSTATUS
metag/ptrace: Preserve previous registers for short regset write
sparc/ptrace: Preserve previous registers for short regset write
mips/ptrace: Preserve previous registers for short regset write
h8300/ptrace: Fix incorrect register transfer count
c6x/ptrace: Remove useless PTRACE_SETREGSET implementation
pinctrl: qcom: Don't clear status bit on irq_unmask
virtio_balloon: init 1st buffer in stats vq
xfrm_user: validate XFRM_MSG_NEWAE incoming ESN size harder
xfrm_user: validate XFRM_MSG_NEWAE XFRMA_REPLAY_ESN_VAL replay_window
xfrm: policy: init locks early
Linux 4.4.58
crypto: algif_hash - avoid zero-sized array
fbcon: Fix vc attr at deinit
serial: 8250_pci: Detach low-level driver during PCI error recovery
ACPI / blacklist: Make Dell Latitude 3350 ethernet work
ACPI / blacklist: add _REV quirks for Dell Precision 5520 and 3520
uvcvideo: uvc_scan_fallback() for webcams with broken chain
s390/zcrypt: Introduce CEX6 toleration
block: allow WRITE_SAME commands with the SG_IO ioctl
vfio/spapr: Postpone allocation of userspace version of TCE table
PCI: Do any VF BAR updates before enabling the BARs
PCI: Ignore BAR updates on virtual functions
PCI: Update BARs using property bits appropriate for type
PCI: Don't update VF BARs while VF memory space is enabled
PCI: Decouple IORESOURCE_ROM_ENABLE and PCI_ROM_ADDRESS_ENABLE
PCI: Add comments about ROM BAR updating
PCI: Remove pci_resource_bar() and pci_iov_resource_bar()
PCI: Separate VF BAR updates from standard BAR updates
x86/hyperv: Handle unknown NMIs on one CPU when unknown_nmi_panic
igb: add i211 to i210 PHY workaround
igb: Workaround for igb i210 firmware issue
xen: do not re-use pirq number cached in pci device msi msg data
xfs: clear _XBF_PAGES from buffers when readahead page
USB: usbtmc: add missing endpoint sanity check
nl80211: fix dumpit error path RTNL deadlocks
xfs: fix up xfs_swap_extent_forks inline extent handling
xfs: don't allow di_size with high bit set
libceph: don't set weight to IN when OSD is destroyed
raid10: increment write counter after bio is split
cpufreq: Restore policy min/max limits on CPU online
ARM: dts: at91: sama5d2: add dma properties to UART nodes
ARM: at91: pm: cpu_idle: switch DDR to power-down mode
iommu/vt-d: Fix NULL pointer dereference in device_to_iommu
xen/acpi: upload PM state from init-domain to Xen
mmc: sdhci: Do not disable interrupts while waiting for clock
ext4: mark inode dirty after converting inline directory
parport: fix attempt to write duplicate procfiles
iio: hid-sensor-trigger: Change get poll value function order to avoid sensor properties losing after resume from S3
iio: adc: ti_am335x_adc: fix fifo overrun recovery
mmc: ushc: fix NULL-deref at probe
uwb: hwa-rc: fix NULL-deref at probe
uwb: i1480-dfu: fix NULL-deref at probe
usb: hub: Fix crash after failure to read BOS descriptor
usb: musb: cppi41: don't check early-TX-interrupt for Isoch transfer
USB: wusbcore: fix NULL-deref at probe
USB: idmouse: fix NULL-deref at probe
USB: lvtest: fix NULL-deref at probe
USB: uss720: fix NULL-deref at probe
usb-core: Add LINEAR_FRAME_INTR_BINTERVAL USB quirk
usb: gadget: f_uvc: Fix SuperSpeed companion descriptor's wBytesPerInterval
ACM gadget: fix endianness in notifications
USB: serial: qcserial: add Dell DW5811e
USB: serial: option: add Quectel UC15, UC20, EC21, and EC25 modems
ALSA: hda - Adding a group of pin definition to fix headset problem
ALSA: ctxfi: Fix the incorrect check of dma_set_mask() call
ALSA: seq: Fix racy cell insertions during snd_seq_pool_done()
Input: sur40 - validate number of endpoints before using them
Input: kbtab - validate number of endpoints before using them
Input: cm109 - validate number of endpoints before using them
Input: yealink - validate number of endpoints before using them
Input: hanwang - validate number of endpoints before using them
Input: ims-pcu - validate number of endpoints before using them
Input: iforce - validate number of endpoints before using them
Input: i8042 - add noloop quirk for Dell Embedded Box PC 3000
Input: elan_i2c - add ASUS EeeBook X205TA special touchpad fw
tcp: initialize icsk_ack.lrcvtime at session start time
socket, bpf: fix sk_filter use after free in sk_clone_lock
ipv4: provide stronger user input validation in nl_fib_input()
net: bcmgenet: remove bcmgenet_internal_phy_setup()
net/mlx5e: Count LRO packets correctly
net/mlx5: Increase number of max QPs in default profile
net: unix: properly re-increment inflight counter of GC discarded candidates
amd-xgbe: Fix jumbo MTU processing on newer hardware
net: properly release sk_frag.page
net: bcmgenet: Do not suspend PHY if Wake-on-LAN is enabled
net/openvswitch: Set the ipv6 source tunnel key address attribute correctly
Linux 4.4.57
ext4: fix fencepost in s_first_meta_bg validation
percpu: acquire pcpu_lock when updating pcpu_nr_empty_pop_pages
gfs2: Avoid alignment hole in struct lm_lockname
isdn/gigaset: fix NULL-deref at probe
target: Fix VERIFY_16 handling in sbc_parse_cdb
scsi: libiscsi: add lock around task lists to fix list corruption regression
scsi: lpfc: Add shutdown method for kexec
target/pscsi: Fix TYPE_TAPE + TYPE_MEDIMUM_CHANGER export
md/raid1/10: fix potential deadlock
powerpc/boot: Fix zImage TOC alignment
cpufreq: Fix and clean up show_cpuinfo_cur_freq()
perf/core: Fix event inheritance on fork()
give up on gcc ilog2() constant optimizations
kernek/fork.c: allocate idle task for a CPU always on its local node
hv_netvsc: use skb_get_hash() instead of a homegrown implementation
tpm_tis: Use devm_free_irq not free_irq
drm/amdgpu: add missing irq.h include
s390/pci: fix use after free in dma_init
KVM: PPC: Book3S PR: Fix illegal opcode emulation
xen/qspinlock: Don't kick CPU if IRQ is not initialized
Drivers: hv: avoid vfree() on crash
Drivers: hv: balloon: don't crash when memory is added in non-sorted order
pinctrl: cherryview: Do not mask all interrupts in probe
ACPI / video: skip evaluating _DOD when it does not exist
cxlflash: Increase cmd_per_lun for better throughput
crypto: mcryptd - Fix load failure
crypto: cryptd - Assign statesize properly
crypto: ghash-clmulni - Fix load failure
USB: don't free bandwidth_mutex too early
usb: core: hub: hub_port_init lock controller instead of bus
Bug: 62730977
Change-Id: Id5edc4c2c4cf300956116a6011eeef04264bb82a
Signed-off-by: Thierry Strudel <tstrudel@google.com>
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[ Upstream commit 7df9c24625b9981779afb8fcdbe2bb4765e61147 ]
Dmitry has reported that a BUG_ON() condition in unix_notinflight()
may be triggered by a simple code that forwards unix socket in an
SCM_RIGHTS message.
That is caused by incorrect unix socket GC implementation in unix_gc().
The GC first collects list of candidates, then (a) decrements their
"children's" inflight counter, (b) checks which inflight counters are
now 0, and then (c) increments all inflight counters back.
(a) and (c) are done by calling scan_children() with inc_inflight or
dec_inflight as the second argument.
Commit 6209344f5a37 ("net: unix: fix inflight counting bug in garbage
collector") changed scan_children() such that it no longer considers
sockets that do not have UNIX_GC_CANDIDATE flag. It also added a block
of code that that unsets this flag _before_ invoking
scan_children(, dec_iflight, ). This may lead to incorrect inflight
counters for some sockets.
This change fixes this bug by changing order of operations:
UNIX_GC_CANDIDATE is now unset only after all inflight counters are
restored to the original state.
kernel BUG at net/unix/garbage.c:149!
RIP: 0010:[<ffffffff8717ebf4>] [<ffffffff8717ebf4>]
unix_notinflight+0x3b4/0x490 net/unix/garbage.c:149
Call Trace:
[<ffffffff8716cfbf>] unix_detach_fds.isra.19+0xff/0x170 net/unix/af_unix.c:1487
[<ffffffff8716f6a9>] unix_destruct_scm+0xf9/0x210 net/unix/af_unix.c:1496
[<ffffffff86a90a01>] skb_release_head_state+0x101/0x200 net/core/skbuff.c:655
[<ffffffff86a9808a>] skb_release_all+0x1a/0x60 net/core/skbuff.c:668
[<ffffffff86a980ea>] __kfree_skb+0x1a/0x30 net/core/skbuff.c:684
[<ffffffff86a98284>] kfree_skb+0x184/0x570 net/core/skbuff.c:705
[<ffffffff871789d5>] unix_release_sock+0x5b5/0xbd0 net/unix/af_unix.c:559
[<ffffffff87179039>] unix_release+0x49/0x90 net/unix/af_unix.c:836
[<ffffffff86a694b2>] sock_release+0x92/0x1f0 net/socket.c:570
[<ffffffff86a6962b>] sock_close+0x1b/0x20 net/socket.c:1017
[<ffffffff81a76b8e>] __fput+0x34e/0x910 fs/file_table.c:208
[<ffffffff81a771da>] ____fput+0x1a/0x20 fs/file_table.c:244
[<ffffffff81483ab0>] task_work_run+0x1a0/0x280 kernel/task_work.c:116
[< inline >] exit_task_work include/linux/task_work.h:21
[<ffffffff8141287a>] do_exit+0x183a/0x2640 kernel/exit.c:828
[<ffffffff8141383e>] do_group_exit+0x14e/0x420 kernel/exit.c:931
[<ffffffff814429d3>] get_signal+0x663/0x1880 kernel/signal.c:2307
[<ffffffff81239b45>] do_signal+0xc5/0x2190 arch/x86/kernel/signal.c:807
[<ffffffff8100666a>] exit_to_usermode_loop+0x1ea/0x2d0
arch/x86/entry/common.c:156
[< inline >] prepare_exit_to_usermode arch/x86/entry/common.c:190
[<ffffffff81009693>] syscall_return_slowpath+0x4d3/0x570
arch/x86/entry/common.c:259
[<ffffffff881478e6>] entry_SYSCALL_64_fastpath+0xc4/0xc6
Link: https://lkml.org/lkml/2017/3/6/252
Signed-off-by: Andrey Ulanov <andreyu@google.com>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Fixes: 6209344 ("net: unix: fix inflight counting bug in garbage collector")
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Conflicts:
Makefile
arch/arm64/configs/wahoo_defconfig
arch/arm64/include/asm/cpufeature.h
arch/arm64/kernel/sleep.S
arch/arm64/kernel/vmlinux.lds.S
arch/arm64/mm/fault.c
drivers/android/binder.c
drivers/firmware/efi/arm-init.c
drivers/firmware/efi/efi.c
drivers/input/keyboard/gpio_keys.c
drivers/input/misc/Makefile
drivers/input/misc/vl53L0/Makefile
drivers/input/misc/vl53L0/inc/vl53l010_api.h
drivers/input/misc/vl53L0/inc/vl53l010_device.h
drivers/input/misc/vl53L0/inc/vl53l010_strings.h
drivers/input/misc/vl53L0/inc/vl53l010_tuning.h
drivers/input/misc/vl53L0/inc/vl53l0_api.h
drivers/input/misc/vl53L0/inc/vl53l0_api_calibration.h
drivers/input/misc/vl53L0/inc/vl53l0_api_core.h
drivers/input/misc/vl53L0/inc/vl53l0_api_histogram.h
drivers/input/misc/vl53L0/inc/vl53l0_api_ranging.h
drivers/input/misc/vl53L0/inc/vl53l0_api_strings.h
drivers/input/misc/vl53L0/inc/vl53l0_def.h
drivers/input/misc/vl53L0/inc/vl53l0_device.h
drivers/input/misc/vl53L0/inc/vl53l0_interrupt_threshold_settings.h
drivers/input/misc/vl53L0/inc/vl53l0_platform.h
drivers/input/misc/vl53L0/inc/vl53l0_platform_log.h
drivers/input/misc/vl53L0/inc/vl53l0_tuning.h
drivers/input/misc/vl53L0/inc/vl53l0_types.h
drivers/input/misc/vl53L0/src/vl53l010_api.c
drivers/input/misc/vl53L0/src/vl53l010_tuning.c
drivers/input/misc/vl53L0/src/vl53l0_api.c
drivers/input/misc/vl53L0/src/vl53l0_api_calibration.c
drivers/input/misc/vl53L0/src/vl53l0_api_core.c
drivers/input/misc/vl53L0/src/vl53l0_api_histogram.c
drivers/input/misc/vl53L0/src/vl53l0_api_ranging.c
drivers/input/misc/vl53L0/src/vl53l0_api_strings.c
drivers/input/misc/vl53L0/src/vl53l0_i2c_platform.c
drivers/input/misc/vl53L0/src/vl53l0_platform.c
drivers/input/misc/vl53L0/src/vl53l0_port_i2c.c
drivers/input/misc/vl53L0/stmvl53l0-cci.h
drivers/input/misc/vl53L0/stmvl53l0-i2c.h
drivers/input/misc/vl53L0/stmvl53l0.h
drivers/input/misc/vl53L0/stmvl53l0_module-cci.c
drivers/input/misc/vl53L0/stmvl53l0_module-i2c.c
drivers/input/misc/vl53L0/stmvl53l0_module.c
drivers/input/touchscreen/Makefile
drivers/leds/leds-qpnp.c
drivers/media/platform/msm/camera_v2/isp/msm_isp_stats_util.c
drivers/media/platform/msm/camera_v2/msm.c
drivers/pinctrl/qcom/pinctrl-msm.c
drivers/platform/msm/ipa/ipa_v3/ipa_client.c
drivers/platform/msm/mhi/mhi_ssr.c
drivers/power/supply/qcom/qpnp-smb2.c
drivers/power/supply/qcom/smb-lib.c
drivers/power/supply/qcom/smb-lib.h
drivers/soc/qcom/icnss.c
drivers/soc/qcom/qdsp6v2/audio_notifier.c
drivers/soc/qcom/service-notifier.c
drivers/video/fbdev/msm/mdss_panel.h
fs/exec.c
fs/ext4/inode.c
fs/ext4/readpage.c
fs/namei.c
fs/sdcardfs/derived_perm.c
fs/sdcardfs/file.c
fs/sdcardfs/inode.c
fs/sdcardfs/lookup.c
fs/sdcardfs/main.c
fs/sdcardfs/multiuser.h
fs/sdcardfs/packagelist.c
fs/sdcardfs/sdcardfs.h
fs/sdcardfs/super.c
fs/utimes.c
include/linux/string.h
lib/kstrtox.c
lib/string.c
net/ipv4/tcp_ipv4.c
net/unix/af_unix.c
sound/soc/codecs/wcd934x/wcd934x-mbhc.h
sound/soc/msm/msm8998.c
Change-Id: I918ebad22a5f81d48be07bd2bc2ac435ed9acb0a
Signed-off-by: Thierry Strudel <tstrudel@google.com>
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[ Upstream commit 0fb44559ffd67de8517098b81f675fa0210f13f0 ]
Dmitry reported a deadlock scenario:
unix_bind() path:
u->bindlock ==> sb_writer
do_splice() path:
sb_writer ==> pipe->mutex ==> u->bindlock
In the unix_bind() code path, unix_mknod() does not have to
be done with u->bindlock held, since it is a pure fs operation,
so we can just move unix_mknod() out.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 06a77b07e3b44aea2b3c0e64de420ea2cfdcbaa9 ]
Commit 2b15af6f95 ("af_unix: use freezable blocking calls in read")
converts schedule_timeout() to its freezable version, it was probably
correct at that time, but later, commit 2b514574f7e8
("net: af_unix: implement splice for stream af_unix sockets") breaks
the strong requirement for a freezable sleep, according to
commit 0f9548ca1091:
We shouldn't try_to_freeze if locks are held. Holding a lock can cause a
deadlock if the lock is later acquired in the suspend or hibernate path
(e.g. by dpm). Holding a lock can also cause a deadlock in the case of
cgroup_freezer if a lock is held inside a frozen cgroup that is later
acquired by a process outside that group.
The pipe_lock is still held at that point.
So use freezable version only for the recvmsg call path, avoid impact for
Android.
Fixes: 2b514574f7e8 ("net: af_unix: implement splice for stream af_unix sockets")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Colin Cross <ccross@android.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 6e1ce3c3451291142a57c4f3f6f999a29fb5b3bc upstream.
Right now we use the 'readlock' both for protecting some of the af_unix
IO path and for making the bind be single-threaded.
The two are independent, but using the same lock makes for a nasty
deadlock due to ordering with regards to filesystem locking. The bind
locking would want to nest outside the VSF pathname locking, but the IO
locking wants to nest inside some of those same locks.
We tried to fix this earlier with commit c845acb324aa ("af_unix: Fix
splice-bind deadlock") which moved the readlock inside the vfs locks,
but that caused problems with overlayfs that will then call back into
filesystem routines that take the lock in the wrong order anyway.
Splitting the locks means that we can go back to having the bind lock be
the outermost lock, and we don't have any deadlocks with lock ordering.
Acked-by: Rainer Weikusat <rweikusat@cyberadapt.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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commit 38f7bd94a97b542de86a2be9229289717e33a7a4 upstream.
This reverts commit c845acb324aa85a39650a14e7696982ceea75dc1.
It turns out that it just replaces one deadlock with another one: we can
still get the wrong lock ordering with the readlock due to overlayfs
calling back into the filesystem layer and still taking the vfs locks
after the readlock.
The proper solution ends up being to just split the readlock into two
pieces: the bind lock (taken *outside* the vfs locks) and the IO lock
(taken *inside* the filesystem locks). The two locks are independent
anyway.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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unix_mkname has a success case that doesn't set hash, so avoid
uninitialized hash use warning by init'ing it to zero.
net/unix/af_unix.c:1036:20: warning: 'hash' may be used uninitialized in this function [-Wmaybe-uninitialized]
Signed-off-by: Chris Fries <cfries@google.com>
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commit eb0a4a47ae89aaa0674ab3180de6a162f3be2ddf upstream.
Overlayfs uses separate inodes even in the case of hard links on the
underlying filesystems. This is a problem for AF_UNIX socket
implementation which indexes sockets based on the inode. This resulted in
hard linked sockets not working.
The fix is to use the real, underlying inode.
Test case follows:
-- ovl-sock-test.c --
#include <unistd.h>
#include <err.h>
#include <sys/socket.h>
#include <sys/un.h>
#define SOCK "test-sock"
#define SOCK2 "test-sock2"
int main(void)
{
int fd, fd2;
struct sockaddr_un addr = {
.sun_family = AF_UNIX,
.sun_path = SOCK,
};
struct sockaddr_un addr2 = {
.sun_family = AF_UNIX,
.sun_path = SOCK2,
};
unlink(SOCK);
unlink(SOCK2);
if ((fd = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
err(1, "socket");
if (bind(fd, (struct sockaddr *) &addr, sizeof(addr)) == -1)
err(1, "bind");
if (listen(fd, 0) == -1)
err(1, "listen");
if (link(SOCK, SOCK2) == -1)
err(1, "link");
if ((fd2 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
err(1, "socket");
if (connect(fd2, (struct sockaddr *) &addr2, sizeof(addr2)) == -1)
err (1, "connect");
return 0;
}
----
Reported-by: Alexander Morozov <alexandr.morozov@docker.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit b5f0549231ffb025337be5a625b0ff9f52b016f0 ]
The value passed by unix_diag_get_exact to unix_lookup_by_ino has type
__u32, but unix_lookup_by_ino's argument ino has type int, which is not
a problem yet.
However, when ino is compared with sock_i_ino return value of type
unsigned long, ino is sign extended to signed long, and this results
to incorrect comparison on 64-bit architectures for inode numbers
greater than INT_MAX.
This bug was found by strace test suite.
Fixes: 5d3cae8bc39d ("unix_diag: Dumping exact socket core")
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Acked-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit a5527dda344fff0514b7989ef7a755729769daa1 ]
The unix_dgram_sendmsg routine use the following test
if (unlikely(unix_peer(other) != sk && unix_recvq_full(other))) {
to determine if sk and other are in an n:1 association (either
established via connect or by using sendto to send messages to an
unrelated socket identified by address). This isn't correct as the
specified address could have been bound to the sending socket itself or
because this socket could have been connected to itself by the time of
the unix_peer_get but disconnected before the unix_state_lock(other). In
both cases, the if-block would be entered despite other == sk which
might either block the sender unintentionally or lead to trying to unlock
the same spin lock twice for a non-blocking send. Add a other != sk
check to guard against this.
Fixes: 7d267278a9ec ("unix: avoid use-after-free in ep_remove_wait_queue")
Reported-By: Philipp Hahn <pmhahn@pmhahn.de>
Signed-off-by: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Tested-by: Philipp Hahn <pmhahn@pmhahn.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 1b92ee3d03af6643df395300ba7748f19ecdb0c5 ]
The present unix_stream_read_generic contains various code sequences of
the form
err = -EDISASTER;
if (<test>)
goto out;
This has the unfortunate side effect of possibly causing the error code
to bleed through to the final
out:
return copied ? : err;
and then to be wrongly returned if no data was copied because the caller
didn't supply a data buffer, as demonstrated by the program available at
http://pad.lv/1540731
Change it such that err is only set if an error condition was detected.
Fixes: 3822b5c2fc62 ("af_unix: Revert 'lock_interruptible' in stream receive code")
Reported-by: Joseph Salisbury <joseph.salisbury@canonical.com>
Signed-off-by: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 415e3d3e90ce9e18727e8843ae343eda5a58fad6 ]
The commit referenced in the Fixes tag incorrectly accounted the number
of in-flight fds over a unix domain socket to the original opener
of the file-descriptor. This allows another process to arbitrary
deplete the original file-openers resource limit for the maximum of
open files. Instead the sending processes and its struct cred should
be credited.
To do so, we add a reference counted struct user_struct pointer to the
scm_fp_list and use it to account for the number of inflight unix fds.
Fixes: 712f4aad406bb1 ("unix: properly account for FDs passed over unix sockets")
Reported-by: David Herrmann <dh.herrmann@gmail.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit fa0dc04df259ba2df3ce1920e9690c7842f8fa4b ]
Dmitry reported a struct pid leak detected by a syzkaller program.
Bug happens in unix_stream_recvmsg() when we break the loop when a
signal is pending, without properly releasing scm.
Fixes: b3ca9b02b007 ("net: fix multithreaded signal handling in unix recv routines")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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[ Upstream commit 712f4aad406bb1ed67f3f98d04c044191f0ff593 ]
It is possible for a process to allocate and accumulate far more FDs than
the process' limit by sending them over a unix socket then closing them
to keep the process' fd count low.
This change addresses this problem by keeping track of the number of FDs
in flight per user and preventing non-privileged processes from having
more FDs in flight than their configured FD limit.
Reported-by: socketpair@gmail.com
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Mitigates: CVE-2013-4312 (Linux 2.0+)
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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On 2015/11/06, Dmitry Vyukov reported a deadlock involving the splice
system call and AF_UNIX sockets,
http://lists.openwall.net/netdev/2015/11/06/24
The situation was analyzed as
(a while ago) A: socketpair()
B: splice() from a pipe to /mnt/regular_file
does sb_start_write() on /mnt
C: try to freeze /mnt
wait for B to finish with /mnt
A: bind() try to bind our socket to /mnt/new_socket_name
lock our socket, see it not bound yet
decide that it needs to create something in /mnt
try to do sb_start_write() on /mnt, block (it's
waiting for C).
D: splice() from the same pipe to our socket
lock the pipe, see that socket is connected
try to lock the socket, block waiting for A
B: get around to actually feeding a chunk from
pipe to file, try to lock the pipe. Deadlock.
on 2015/11/10 by Al Viro,
http://lists.openwall.net/netdev/2015/11/10/4
The patch fixes this by removing the kern_path_create related code from
unix_mknod and executing it as part of unix_bind prior acquiring the
readlock of the socket in question. This means that A (as used above)
will sb_start_write on /mnt before it acquires the readlock, hence, it
won't indirectly block B which first did a sb_start_write and then
waited for a thread trying to acquire the readlock. Consequently, A
being blocked by C waiting for B won't cause a deadlock anymore
(effectively, both A and B acquire two locks in opposite order in the
situation described above).
Dmitry Vyukov(<dvyukov@google.com>) tested the original patch.
Signed-off-by: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With b3ca9b02b00704053a38bfe4c31dbbb9c13595d0, the AF_UNIX SOCK_STREAM
receive code was changed from using mutex_lock(&u->readlock) to
mutex_lock_interruptible(&u->readlock) to prevent signals from being
delayed for an indefinite time if a thread sleeping on the mutex
happened to be selected for handling the signal. But this was never a
problem with the stream receive code (as opposed to its datagram
counterpart) as that never went to sleep waiting for new messages with the
mutex held and thus, wouldn't cause secondary readers to block on the
mutex waiting for the sleeping primary reader. As the interruptible
locking makes the code more complicated in exchange for no benefit,
change it back to using mutex_lock.
Signed-off-by: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch is a cleanup to make following patch easier to
review.
Goal is to move SOCK_ASYNC_NOSPACE and SOCK_ASYNC_WAITDATA
from (struct socket)->flags to a (struct socket_wq)->flags
to benefit from RCU protection in sock_wake_async()
To ease backports, we rename both constants.
Two new helpers, sk_set_bit(int nr, struct sock *sk)
and sk_clear_bit(int net, struct sock *sk) are added so that
following patch can change their implementation.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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sendpage did not care about credentials at all. This could lead to
situations in which because of fd passing between processes we could
append data to skbs with different scm data. It is illegal to splice those
skbs together. Instead we have to allocate a new skb and if requested
fill out the scm details.
Fixes: 869e7c62486ec ("net: af_unix: implement stream sendpage support")
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rainer Weikusat <rweikusat@mobileactivedefense.com> writes:
An AF_UNIX datagram socket being the client in an n:1 association with
some server socket is only allowed to send messages to the server if the
receive queue of this socket contains at most sk_max_ack_backlog
datagrams. This implies that prospective writers might be forced to go
to sleep despite none of the message presently enqueued on the server
receive queue were sent by them. In order to ensure that these will be
woken up once space becomes again available, the present unix_dgram_poll
routine does a second sock_poll_wait call with the peer_wait wait queue
of the server socket as queue argument (unix_dgram_recvmsg does a wake
up on this queue after a datagram was received). This is inherently
problematic because the server socket is only guaranteed to remain alive
for as long as the client still holds a reference to it. In case the
connection is dissolved via connect or by the dead peer detection logic
in unix_dgram_sendmsg, the server socket may be freed despite "the
polling mechanism" (in particular, epoll) still has a pointer to the
corresponding peer_wait queue. There's no way to forcibly deregister a
wait queue with epoll.
Based on an idea by Jason Baron, the patch below changes the code such
that a wait_queue_t belonging to the client socket is enqueued on the
peer_wait queue of the server whenever the peer receive queue full
condition is detected by either a sendmsg or a poll. A wake up on the
peer queue is then relayed to the ordinary wait queue of the client
socket via wake function. The connection to the peer wait queue is again
dissolved if either a wake up is about to be relayed or the client
socket reconnects or a dead peer is detected or the client socket is
itself closed. This enables removing the second sock_poll_wait from
unix_dgram_poll, thus avoiding the use-after-free, while still ensuring
that no blocked writer sleeps forever.
Signed-off-by: Rainer Weikusat <rweikusat@mobileactivedefense.com>
Fixes: ec0d215f9420 ("af_unix: fix 'poll for write'/connected DGRAM sockets")
Reviewed-by: Jason Baron <jbaron@akamai.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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While possibly in future we don't necessarily need to use
sk_buff_head.lock this is a rather larger change, as it affects the
af_unix fd garbage collector, diag and socket cleanups. This is too much
for a stable patch.
For the time being grab sk_buff_head.lock without disabling bh and irqs,
so don't use locked skb_queue_tail.
Fixes: 869e7c62486e ("net: af_unix: implement stream sendpage support")
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Reported-by: Eric Dumazet <edumazet@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In case multiple writes to a unix stream socket race we could end up in a
situation where we pre-allocate a new skb for use in unix_stream_sendpage
but have to free it again in the locked section because another skb
has been appended meanwhile, which we must use. Accidentally we didn't
clear the pointer after consuming it and so we touched freed memory
while appending it to the sk_receive_queue. So, clear the pointer after
consuming the skb.
This bug has been found with syzkaller
(http://github.com/google/syzkaller) by Dmitry Vyukov.
Fixes: 869e7c62486e ("net: af_unix: implement stream sendpage support")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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During splicing an af-unix socket to a pipe we have to drop all
af-unix socket locks. While doing so we allow another reader to enter
unix_stream_read_generic which can read, copy and finally free another
skb. If exactly this skb is just in process of being spliced we get a
use-after-free report by kasan.
First, we must make sure to not have a free while the skb is used during
the splice operation. We simply increment its use counter before unlocking
the reader lock.
Stream sockets have the nice characteristic that we don't care about
zero length writes and they never reach the peer socket's queue. That
said, we can take the UNIXCB.consumed field as the indicator if the
skb was already freed from the socket's receive queue. If the skb was
fully consumed after we locked the reader side again we know it has been
dropped by a second reader. We indicate a short read to user space and
abort the current splice operation.
This bug has been found with syzkaller
(http://github.com/google/syzkaller) by Dmitry Vyukov.
Fixes: 2b514574f7e8 ("net: af_unix: implement splice for stream af_unix sockets")
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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poll(POLLOUT) on a listener should not report fd is ready for
a write().
This would break some applications using poll() and pfd.events = -1,
as they would not block in poll()
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Alan Burlison <Alan.Burlison@oracle.com>
Tested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now send with MSG_PEEK can return data from multiple SKBs.
Unfortunately we take into account the peek offset for each skb,
that is wrong. We need to apply the peek offset only once.
In addition, the peek offset should be used only if MSG_PEEK is set.
Cc: "David S. Miller" <davem@davemloft.net> (maintainer:NETWORKING
Cc: Eric Dumazet <edumazet@google.com> (commit_signer:1/14=7%)
Cc: Aaron Conole <aconole@bytheb.org>
Fixes: 9f389e35674f ("af_unix: return data from multiple SKBs on recv() with MSG_PEEK flag")
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Tested-by: Aaron Conole <aconole@bytheb.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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AF_UNIX sockets now return multiple skbs from recv() when MSG_PEEK flag
is set.
This is referenced in kernel bugzilla #12323 @
https://bugzilla.kernel.org/show_bug.cgi?id=12323
As described both in the BZ and lkml thread @
http://lkml.org/lkml/2008/1/8/444 calling recv() with MSG_PEEK on an
AF_UNIX socket only reads a single skb, where the desired effect is
to return as much skb data has been queued, until hitting the recv
buffer size (whichever comes first).
The modified MSG_PEEK path will now move to the next skb in the tree
and jump to the again: label, rather than following the natural loop
structure. This requires duplicating some of the loop head actions.
This was tested using the python socketpair python code attached to
the bugzilla issue.
Signed-off-by: Aaron Conole <aconole@bytheb.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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SCM_SECURITY was originally only implemented for datagram sockets,
not for stream sockets. However, SCM_CREDENTIALS is supported on
Unix stream sockets. For consistency, implement Unix stream support
for SCM_SECURITY as well. Also clean up the existing code and get
rid of the superfluous UNIXSID macro.
Motivated by https://bugzilla.redhat.com/show_bug.cgi?id=1224211,
where systemd was using SCM_CREDENTIALS and assumed wrongly that
SCM_SECURITY was also supported on Unix stream sockets.
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Acked-by: Paul Moore <paul@paul-moore.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Conflicts:
drivers/net/phy/amd-xgbe-phy.c
drivers/net/wireless/iwlwifi/Kconfig
include/net/mac80211.h
iwlwifi/Kconfig and mac80211.h were both trivial overlapping
changes.
The drivers/net/phy/amd-xgbe-phy.c file got removed in 'net-next' and
the bug fix that happened on the 'net' side is already integrated
into the rest of the amd-xgbe driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
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got a rare NULL pointer dereference in clear_bit
Signed-off-by: Mark Salyzyn <salyzyn@android.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
----
v2: switch to sock_flag(sk, SOCK_DEAD) and added net/caif/caif_socket.c
v3: return -ECONNRESET in upstream caller of wait function for SOCK_DEAD
Signed-off-by: David S. Miller <davem@davemloft.net>
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unix_stream_recvmsg is refactored to unix_stream_read_generic in this
patch and enhanced to deal with pipe splicing. The refactoring is
inneglible, we mostly have to deal with a non-existing struct msghdr
argument.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch implements sendpage support for AF_UNIX SOCK_STREAM
sockets. This is also required for a complete splice implementation.
The implementation is a bit tricky because we append to already existing
skbs and so have to hold unix_sk->readlock to protect the reading side
from either advancing UNIXCB.consumed or freeing the skb at the socket
receive tail.
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In preparation for changing how struct net is refcounted
on kernel sockets pass the knowledge that we are creating
a kernel socket from sock_create_kern through to sk_alloc.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking fixes from David Miller:
1) mlx4 doesn't check fully for supported valid RSS hash function, fix
from Amir Vadai
2) Off by one in ibmveth_change_mtu(), from David Gibson
3) Prevent altera chip from reporting false error interrupts in some
circumstances, from Chee Nouk Phoon
4) Get rid of that stupid endless loop trying to allocate a FIN packet
in TCP, and in the process kill deadlocks. From Eric Dumazet
5) Fix get_rps_cpus() crash due to wrong invalid-cpu value, also from
Eric Dumazet
6) Fix two bugs in async rhashtable resizing, from Thomas Graf
7) Fix topology server listener socket namespace bug in TIPC, from Ying
Xue
8) Add some missing HAS_DMA kconfig dependencies, from Geert
Uytterhoeven
9) bgmac driver intends to force re-polling but does so by returning
the wrong value from it's ->poll() handler. Fix from Rafał Miłecki
10) When the creater of an rhashtable configures a max size for it,
don't bark in the logs and drop insertions when that is exceeded.
Fix from Johannes Berg
11) Recover from out of order packets in ppp mppe properly, from Sylvain
Rochet
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (41 commits)
bnx2x: really disable TPA if 'disable_tpa' option is set
net:treewide: Fix typo in drivers/net
net/mlx4_en: Prevent setting invalid RSS hash function
mdio-mux-gpio: use new gpiod_get_array and gpiod_put_array functions
netfilter; Add some missing default cases to switch statements in nft_reject.
ppp: mppe: discard late packet in stateless mode
ppp: mppe: sanity error path rework
net/bonding: Make DRV macros private
net: rfs: fix crash in get_rps_cpus()
altera tse: add support for fixed-links.
pxa168: fix double deallocation of managed resources
net: fix crash in build_skb()
net: eth: altera: Resolve false errors from MSGDMA to TSE
ehea: Fix memory hook reference counting crashes
net/tg3: Release IRQs on permanent error
net: mdio-gpio: support access that may sleep
inet: fix possible panic in reqsk_queue_unlink()
rhashtable: don't attempt to grow when at max_size
bgmac: fix requests for extra polling calls from NAPI
tcp: avoid looping in tcp_send_fin()
...
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fixed several comment and whitespace style issues
Signed-off-by: Jason Eastman <eastman.jason.linux@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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places where we are dealing with S_ISSOCK file creation/lookups.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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AF_UNIX sockets should call mknod on the top layer only and should not attempt
to modify the lower layer in a layered filesystem such as overlayfs.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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After TIPC doesn't depend on iocb argument in its internal
implementations of sendmsg() and recvmsg() hooks defined in proto
structure, no any user is using iocb argument in them at all now.
Then we can drop the redundant iocb argument completely from kinds of
implementations of both sendmsg() and recvmsg() in the entire
networking stack.
Cc: Christoph Hellwig <hch@lst.de>
Suggested-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The sock_iocb structure is allocate on stack for each read/write-like
operation on sockets, and contains various fields of which only the
embedded msghdr and sometimes a pointer to the scm_cookie is ever used.
Get rid of the sock_iocb and put a msghdr directly on the stack and pass
the scm_cookie explicitly to netlink_mmap_sendmsg.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Contrary to common expectations for an "int" return, these functions
return only a positive value -- if used correctly they cannot even
return 0 because the message header will necessarily be in the skb.
This makes the very common pattern of
if (genlmsg_end(...) < 0) { ... }
be a whole bunch of dead code. Many places also simply do
return nlmsg_end(...);
and the caller is expected to deal with it.
This also commonly (at least for me) causes errors, because it is very
common to write
if (my_function(...))
/* error condition */
and if my_function() does "return nlmsg_end()" this is of course wrong.
Additionally, there's not a single place in the kernel that actually
needs the message length returned, and if anyone needs it later then
it'll be very easy to just use skb->len there.
Remove this, and make the functions void. This removes a bunch of dead
code as described above. The patch adds lines because I did
- return nlmsg_end(...);
+ nlmsg_end(...);
+ return 0;
I could have preserved all the function's return values by returning
skb->len, but instead I've audited all the places calling the affected
functions and found that none cared. A few places actually compared
the return value with <= 0 in dump functionality, but that could just
be changed to < 0 with no change in behaviour, so I opted for the more
efficient version.
One instance of the error I've made numerous times now is also present
in net/phonet/pn_netlink.c in the route_dumpit() function - it didn't
check for <0 or <=0 and thus broke out of the loop every single time.
I've preserved this since it will (I think) have caused the messages to
userspace to be formatted differently with just a single message for
every SKB returned to userspace. It's possible that this isn't needed
for the tools that actually use this, but I don't even know what they
are so couldn't test that changing this behaviour would be acceptable.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Note that the code _using_ ->msg_iter at that point will be very
unhappy with anything other than unshifted iovec-backed iov_iter.
We still need to convert users to proper primitives.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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... and kill skb_copy_datagram_iovec()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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This encapsulates all of the skb_copy_datagram_iovec() callers
with call argument signature "skb, offset, msghdr->msg_iov, length".
When we move to iov_iters in the networking, the iov_iter object will
sit in the msghdr.
Having a helper like this means there will be less places to touch
during that transformation.
Based upon descriptions and patch from Al Viro.
Signed-off-by: David S. Miller <davem@davemloft.net>
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static values are automatically initialized to 0
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull networking updates from David Miller:
1) Seccomp BPF filters can now be JIT'd, from Alexei Starovoitov.
2) Multiqueue support in xen-netback and xen-netfront, from Andrew J
Benniston.
3) Allow tweaking of aggregation settings in cdc_ncm driver, from Bjørn
Mork.
4) BPF now has a "random" opcode, from Chema Gonzalez.
5) Add more BPF documentation and improve test framework, from Daniel
Borkmann.
6) Support TCP fastopen over ipv6, from Daniel Lee.
7) Add software TSO helper functions and use them to support software
TSO in mvneta and mv643xx_eth drivers. From Ezequiel Garcia.
8) Support software TSO in fec driver too, from Nimrod Andy.
9) Add Broadcom SYSTEMPORT driver, from Florian Fainelli.
10) Handle broadcasts more gracefully over macvlan when there are large
numbers of interfaces configured, from Herbert Xu.
11) Allow more control over fwmark used for non-socket based responses,
from Lorenzo Colitti.
12) Do TCP congestion window limiting based upon measurements, from Neal
Cardwell.
13) Support busy polling in SCTP, from Neal Horman.
14) Allow RSS key to be configured via ethtool, from Venkata Duvvuru.
15) Bridge promisc mode handling improvements from Vlad Yasevich.
16) Don't use inetpeer entries to implement ID generation any more, it
performs poorly, from Eric Dumazet.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1522 commits)
rtnetlink: fix userspace API breakage for iproute2 < v3.9.0
tcp: fixing TLP's FIN recovery
net: fec: Add software TSO support
net: fec: Add Scatter/gather support
net: fec: Increase buffer descriptor entry number
net: fec: Factorize feature setting
net: fec: Enable IP header hardware checksum
net: fec: Factorize the .xmit transmit function
bridge: fix compile error when compiling without IPv6 support
bridge: fix smatch warning / potential null pointer dereference
via-rhine: fix full-duplex with autoneg disable
bnx2x: Enlarge the dorq threshold for VFs
bnx2x: Check for UNDI in uncommon branch
bnx2x: Fix 1G-baseT link
bnx2x: Fix link for KR with swapped polarity lane
sctp: Fix sk_ack_backlog wrap-around problem
net/core: Add VF link state control policy
net/fsl: xgmac_mdio is dependent on OF_MDIO
net/fsl: Make xgmac_mdio read error message useful
net_sched: drr: warn when qdisc is not work conserving
...
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Using whole of allocated pages reduces requested skb->data size.
This is just a little more thriftily allocation.
netperf does not show difference with the current performance.
Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Mostly scripted conversion of the smp_mb__* barriers.
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-55dhyhocezdw1dg7u19hmh1u@git.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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