In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: Fix a use-after-free

looks like we forget to set ttm->sg to NULL.
Hit panic below

[ 1235.844104] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b7b4b: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI
[ 1235.989074] Call Trace:
[ 1235.991751]  sg_free_table+0x17/0x20
[ 1235.995667]  amdgpu_ttm_backend_unbind.cold+0x4d/0xf7 [amdgpu]
[ 1236.002288]  amdgpu_ttm_backend_destroy+0x29/0x130 [amdgpu]
[ 1236.008464]  ttm_tt_destroy+0x1e/0x30 [ttm]
[ 1236.013066]  ttm_bo_cleanup_memtype_use+0x51/0xa0 [ttm]
[ 1236.018783]  ttm_bo_release+0x262/0xa50 [ttm]
[ 1236.023547]  ttm_bo_put+0x82/0xd0 [ttm]
[ 1236.027766]  amdgpu_bo_unref+0x26/0x50 [amdgpu]
[ 1236.032809]  amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu+0x7aa/0xd90 [amdgpu]
[ 1236.040400]  kfd_ioctl_alloc_memory_of_gpu+0xe2/0x330 [amdgpu]
[ 1236.046912]  kfd_ioctl+0x463/0x690 [amdgpu]

kernel.org https://git.kernel.org/stable/c/0707c3fea8102d211631ba515ef2159707561b0d [No types assigned]

kernel.org https://git.kernel.org/stable/c/1e5c37385097c35911b0f8a0c67ffd10ee1af9a2 [No types assigned]

kernel.org https://git.kernel.org/stable/c/3293cf3513d69f00c14d43e2020826d45ea0e46a [No types assigned]

kernel.org https://git.kernel.org/stable/c/7398c2aab4da960761ec182d04d6d5abbb4a226e [No types assigned]

kernel.org https://git.kernel.org/stable/c/952ab3f9f48eb0e8050596d41951cf516be6b122 [No types assigned]

kernel.org https://git.kernel.org/stable/c/a849e218556f932576c0fb1c5a88714b61709a17 [No types assigned]

kernel.org https://git.kernel.org/stable/c/d4ea141fd4b40636a8326df5a377d9c5cf9b3faa [No types assigned]

kernel.org https://git.kernel.org/stable/c/f98cdf084405333ee2f5be548a91b2d168e49276 [No types assigned]