diff options
| author | Nick Desaulniers <ndesaulniers@google.com> | 2017-03-01 13:59:09 -0800 |
|---|---|---|
| committer | Richard Chang <dickchang@google.com> | 2017-04-24 18:23:07 +0000 |
| commit | 931db7e568f84c2d710162ea11ac30b3949cf674 (patch) | |
| tree | 9cbefcbf5c909d40ca190018734214974aded04b /net/lapb/lapb_timer.c | |
| parent | 301e848245d2877ff16051962f340faedd7e5bcf (diff) | |
BACKPORT: uio: fix potential use after free issue when accessing debug_buffer
The variable debug_buffer is a global variable which is allocated
and free'd when open/close is called on debugfs file -
"/sys/kernel/debug/rmt_storage/info". The current code doesn't
have locks to handle concurrent accesses to the above file.
This results into use after free issue when debug_buffer is
accessed by two threads at the same time. Fix this by adding
a mutex lock to protect this global variable.
Change-Id: I6bc3f0ae2d7fca3ca9fe8561612f5863b6c3268a
Signed-off-by: Sahitya Tummala <stummala@codeaurora.org>
Bug: 33845464
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions