diff options
| author | Theodore Ts'o <tytso@mit.edu> | 2018-06-17 00:41:14 -0400 |
|---|---|---|
| committer | Andrew Lehmer <alehmer@google.com> | 2018-10-31 19:47:18 +0000 |
| commit | b0ee76834b05235dc0ad023570d9298630662d7a (patch) | |
| tree | 9f4bad6f9957ba6117e4a6d84257d3c395d6b5a9 /lib/mpi/mpi-bit.c | |
| parent | 8a5902ee807b8d894428c9eb5e4303f39fd0f676 (diff) | |
ext4: add more inode number paranoia checks
commit c37e9e013469521d9adb932d17a1795c139b36db upstream.
If there is a directory entry pointing to a system inode (such as a
journal inode), complain and declare the file system to be corrupted.
Also, if the superblock's first inode number field is too small,
refuse to mount the file system.
This addresses CVE-2018-10882.
https://bugzilla.kernel.org/show_bug.cgi?id=200069
Bug: 116406626
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Change-Id: Ia489a366031f5a4a69506aecb8030509ed901253
Diffstat (limited to 'lib/mpi/mpi-bit.c')
0 files changed, 0 insertions, 0 deletions