{"id":"CVE-2026-89820","title":"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","summary":"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_str…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f < 295d2bf42061db490254e748f9344545bb7faf19","Linux >= 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f < dac29cbb405b912742f4f7eda833cec8e7a53780","Linux >= 3cf7a0bc87f028b6bc63a43a80d9d6026ae4d85f < 92a9eebd2a1f892fe482154d83f9f1626bc73d3b","Linux 6.15"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T11:16:47.383","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89820","references":[{"url":"https://git.kernel.org/stable/c/295d2bf42061db490254e748f9344545bb7faf19","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/92a9eebd2a1f892fe482154d83f9f1626bc73d3b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/dac29cbb405b912742f4f7eda833cec8e7a53780","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89820.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89820"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2535168"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89820"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89820"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89820.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-16T10:53:54.002Z","epss":0.00206,"epssPercentile":0.09472,"cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-772"],"slug":"CVE-2026-89820","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-23 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89820.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":210023,"id":"CVE-2026-89820","ts":1790235654738,"field":"cvss","old":null,"new":"5.5"},{"seq":210022,"id":"CVE-2026-89820","ts":1790235654738,"field":"severity","old":"none","new":"medium"}]}