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(parent: d71e38d) | patch
drm/amdkfd: fix potential kgd_mem UAFs
authorChia-I Wu <olvaffe@gmail.com>
Wed, 8 Mar 2023 21:37:24 +0000 (13:37 -0800)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 14 Mar 2023 14:37:22 +0000 (10:37 -0400)
commit9da050b0d9e04439d225a2ec3044af70cdfb3933
treeb647240a2d254a4b78aae8558cb0ac7128328cc4tree | snapshot
parentd71e38df3b730a17ab6b25cabb2ccfe8a7f04385commit | diff
drm/amdkfd: fix potential kgd_mem UAFs

kgd_mem pointers returned by kfd_process_device_translate_handle are
only guaranteed to be valid while p->mutex is held. As soon as the mutex
is unlocked, another thread can free the BO.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c diff | blob | history
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