{"id":"CVE-2022-50303","revision":"a235c6311b0e4b839e62db6fe0a59d50","records":[{"revision":"a235c6311b0e4b839e62db6fe0a59d50","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2022-50303","aliases":[],"title":"drm/amdkfd: Fix double release compute pasid","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix double release compute pasid\n\nIf kfd_process_device_init_vm returns failure after vm is converted to\ncompute vm and vm->pasid set to compute pasid, KFD will not take\npdd->drm_file reference. As a result, drm close file handler maybe\ncalled to release the compute pasid before KFD process destroy worker to\nrelease the same pasid and set vm->pasid to zero, this generates below\nWARNING backtrace and NULL pointer access.\n\nAdd helper amdgpu_amdkfd_gpuvm_set_vm_pasid and call it at the last step\nof kfd_process_device_init_vm, to ensure vm pasid is the original pasid\nif acquiring vm failed or is the compute pasid with pdd->drm_file\nreference taken to avoid double release same pasid.\n\n amdgpu: Failed to create process VM object\n ida_free called for id=32770 which is not allocated.\n WARNING: CPU: 57 PID: 72542 at ../lib/idr.c:522 ida_free+0x96/0x140\n RIP: 0010:ida_free+0x96/0x140\n Call Trace:\n  amdgpu_pasid_free_delayed+0xe1/0x2a0 [amdgpu]\n  amdgpu_driver_postclose_kms+0x2d8/0x340 [amdgpu]\n  drm_file_free.part.13+0x216/0x270 [drm]\n  drm_close_helper.isra.14+0x60/0x70 [drm]\n  drm_release+0x6e/0xf0 [drm]\n  __fput+0xcc/0x280\n  ____fput+0xe/0x20\n  task_work_run+0x96/0xc0\n  do_exit+0x3d0/0xc10\n\n BUG: kernel NULL pointer dereference, address: 0000000000000000\n RIP: 0010:ida_free+0x76/0x140\n Call Trace:\n  amdgpu_pasid_free_delayed+0xe1/0x2a0 [amdgpu]\n  amdgpu_driver_postclose_kms+0x2d8/0x340 [amdgpu]\n  drm_file_free.part.13+0x216/0x270 [drm]\n  drm_close_helper.isra.14+0x60/0x70 [drm]\n  drm_release+0x6e/0xf0 [drm]\n  __fput+0xcc/0x280\n  ____fput+0xe/0x20\n  task_work_run+0x96/0xc0\n  do_exit+0x3d0/0xc10","state":0,"publishedAt":"2025-09-15T14:45:58.735+00:00","modifiedAt":"2026-10-15T21:31:19.831+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h\",\n                        \"drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c\",\n                        \"drivers/gpu/drm/amd/amdkfd/kfd_process.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"1685b01a858872075bc258a350153de0c7e95404\",\n                            \"lessThan\": \"89f0d766c9e3fdeafbed6f855d433c2768cde862\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1685b01a858872075bc258a350153de0c7e95404\",\n                            \"lessThan\": \"a02c07b619899179384fde06f951530438a3512d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"1685b01a858872075bc258a350153de0c7e95404\",\n                            \"lessThan\": \"1a799c4c190ea9f0e81028e3eb3037ed0ab17ff5\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h\",\n                        \"drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c\",\n                        \"drivers/gpu/drm/amd/amdkfd/kfd_process.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.20\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.20\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.0.19\",\n                            \"lessThanOrEqual\": \"6.0.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.5\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/89f0d766c9e3fdeafbed6f855d433c2768cde862","https://git.kernel.org/stable/c/a02c07b619899179384fde06f951530438a3512d","https://git.kernel.org/stable/c/1a799c4c190ea9f0e81028e3eb3037ed0ab17ff5"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-50303","license":"CVE Program Terms of Use","key":"cve-program:CVE-2022-50303","identifiers":["CVE-2022-50303"]},"retained":false,"historicalAffected":[]}],"coverage":[]}