Re: [PATCH] drivers:gpu:drm:amd:amdgpu:fix a potential use-after-free

2021-08-15 Thread Christian König
Am 13.08.21 um 05:28 schrieb lwt105: in line 1503, "dma_fence_put(fence);" drop the reference to fence and may cause fence to be released. However, fence is used subsequently in line 1510 "fence->error". This may result in an use-after-free bug. It can be fixed by recording fence->error in an va

[PATCH] drivers:gpu:drm:amd:amdgpu:fix a potential use-after-free

2021-08-12 Thread lwt105
in line 1503, "dma_fence_put(fence);" drop the reference to fence and may cause fence to be released. However, fence is used subsequently in line 1510 "fence->error". This may result in an use-after-free bug. It can be fixed by recording fence->error in an variable before dropping the reference to