{"id":"CVE-2022-50303","title":"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 …","summary":"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 …","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-415"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 3.19, < 6.0.19","linux_kernel >= 6.1, < 6.1.5"],"patched":["linux_kernel 6.1.5"],"published":"2025-09-15","updated":"2026-08-15","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-50303","references":[{"url":"https://git.kernel.org/stable/c/1a799c4c190ea9f0e81028e3eb3037ed0ab17ff5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/89f0d766c9e3fdeafbed6f855d433c2768cde862","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a02c07b619899179384fde06f951530438a3512d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00162,"epssPercentile":0.05839,"ingestedAt":"2026-08-15T13:26:45.484Z","slug":"CVE-2022-50303","body":"## Overview\n\nIn 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\n\n## Affected\n\n- `linux_kernel >= 3.19, < 6.0.19`\n- `linux_kernel >= 6.1, < 6.1.5`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.1.5`","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}