{"id":"CVE-2026-89820","summary":"drm/amd/display: fix dc_lock leak on GPU reset error paths","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix dc_lock leak on GPU reset error paths\n\nOn GPU reset, dm_suspend() takes dc_lock and leaves it for dm_resume()\nto drop. If amdgpu_dm_commit_zero_streams() or dm_dmub_hw_init() fails,\nthe function returns with the lock still held. The matching resume path\nis then skipped, so every later dc_lock take hangs.\n\nRelease the cached DC state and unlock before returning the error.","modified":"2026-09-18T03:48:33.104625544Z","published":"2026-09-16T10:30:52.803Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89820.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/295d2bf42061db490254e748f9344545bb7faf19"},{"type":"WEB","url":"https://git.kernel.org/stable/c/92a9eebd2a1f892fe482154d83f9f1626bc73d3b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dac29cbb405b912742f4f7eda833cec8e7a53780"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89820.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89820"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f"},{"fixed":"295d2bf42061db490254e748f9344545bb7faf19"},{"fixed":"dac29cbb405b912742f4f7eda833cec8e7a53780"},{"fixed":"92a9eebd2a1f892fe482154d83f9f1626bc73d3b"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89820.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.15.0"},{"fixed":"6.18.51"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89820.json"}}],"schema_version":"1.9.0"}