{"id":"CVE-2022-49137","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj\n\nThis issue takes place in an error path in\namdgpu_cs_fence_to_handle_ioctl()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj\n\nThis issue takes place in an error path in\namdgpu_cs_fence_to_handle_ioctl(). When `info->in.what` falls…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 4.19.238","linux_kernel >= 4.20, < 5.4.189","linux_kernel >= 5.5, < 5.10.111","linux_kernel >= 5.11, < 5.15.34","linux_kernel >= 5.16, < 5.16.20","linux_kernel >= 5.17, < 5.17.3"],"patched":["linux_kernel 5.17.3"],"published":"2025-02-26","updated":"2026-08-13","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2022-49137","references":[{"url":"https://git.kernel.org/stable/c/3edd8646cb7c11b57c90e026bda6f21076223f5b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4009f104b02b223d1a11d74b36b1cc083bc37028","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/72d77ddb2224ebc00648f4f78f8a9a259dccbdf7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/927beb05aaa429c883cc0ec6adc48964b187e291","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/b6d1f7d97c81ebaf2cda9c4c943ee2e484fffdcf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bc2d5c0775c839e2b072884f4ee6a93ba410f107","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dfced44f122c500004a48ecc8db516bb6a295a1b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd"],"epss":0.00266,"epssPercentile":0.18737,"ingestedAt":"2026-08-13T00:57:22.739Z","slug":"CVE-2022-49137","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/amdgpu/amdgpu_cs: fix refcount leak of a dma_fence obj\n\nThis issue takes place in an error path in\namdgpu_cs_fence_to_handle_ioctl(). When `info->in.what` falls into\ndefault case, the function simply returns -EINVAL, forgetting to\ndecrement the reference count of a dma_fence obj, which is bumped\nearlier by amdgpu_cs_get_fence(). This may result in reference count\nleaks.\n\nFix it by decreasing the refcount of specific object before returning\nthe error code.\n\n## Affected\n\n- `linux_kernel < 4.19.238`\n- `linux_kernel >= 4.20, < 5.4.189`\n- `linux_kernel >= 5.5, < 5.10.111`\n- `linux_kernel >= 5.11, < 5.15.34`\n- `linux_kernel >= 5.16, < 5.16.20`\n- `linux_kernel >= 5.17, < 5.17.3`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.17.3`","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}