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| author | Rob Clark <robdclark@gmail.com> | 2016-08-22 15:28:38 -0400 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2016-08-28 12:49:39 -0400 |
| commit | d78d383ab354b0b9e1d23404ae0d9fbdeb9aa035 (patch) | |
| tree | aee4580ca0766d3be40c2b574dd7816aabc3d080 /Documentation | |
| parent | 89f82cbb0d5c0ab768c8d02914188aa2211cd2e3 (diff) | |
drm/msm: protect against faults from copy_from_user() in submit ioctl
An evil userspace could try to cause deadlock by passing an unfaulted-in
GEM bo as submit->bos (or submit->cmds) table. Which will trigger
msm_gem_fault() while we already hold struct_mutex. See:
https://github.com/freedreno/msmtest/blob/master/evilsubmittest.c
Cc: stable@vger.kernel.org
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'Documentation')
0 files changed, 0 insertions, 0 deletions