commit 36eca4e9005735153525d5b51416fb61a1de42d0
author Manish Poddar <mpoddar@codeaurora.org> Thu May 25 14:50:42 2017 +0530
committer chrmhoffmann <chrmhoffmann@gmail.com> Mon Feb 08 21:21:39 2021 +0100
tree fd38308ced264669cf0fc985960570e1e34a33a0
parent 1878af38001bdab0137d6515bd711c8922834816

msm: camera: Fix Use after free bug in msm_vb2.c.

There is no syncronization between msm_vb2_get_buf
and msm_delete_stream which can lead to use after
free.
Fixed it by using read/write lock.

Change-Id: I8e80d70ec866253aab8836457a28ae14175f5d61
Signed-off-by: Manish Poddar <mpoddar@codeaurora.org>
Signed-off-by: Trishansh Bhardwaj <tbhardwa@codeaurora.org>
[haggertk: Backport to 3.4/msm8974. Note that this includes patching
 the non-standard camera_ll implementation as well on this kernel.]
CVE-2017-9704
Signed-off-by: Kevin F. Haggerty <haggertk@lineageos.org>