{"id":"CVE-2022-49893","title":"cxl/region: Fix cxl_region leak, cleanup targets at region delete","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Fix cxl_region leak, cleanup targets at region delete\n\nWhen a region is deleted any targets that have been previously assigned\nto that region hold reference…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= b9686e8c8e39d4072081ef078c04915ee51c8af4 < 45d9fb4b758b9d602ee7776eb6754b0349946aad","Linux >= b9686e8c8e39d4072081ef078c04915ee51c8af4 < 0d9e734018d70cecf79e2e4c6082167160a0f13f","Linux 6.0"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T19:51:14.364112Z"},"published":"2025-05-01","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:00:10.934Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-49893","references":[{"url":"https://git.kernel.org/stable/c/45d9fb4b758b9d602ee7776eb6754b0349946aad"},{"url":"https://git.kernel.org/stable/c/0d9e734018d70cecf79e2e4c6082167160a0f13f"}],"tags":["cve.org"],"epss":0.0017,"epssPercentile":0.06436,"ingestedAt":"2026-11-05T22:38:31.623Z","slug":"CVE-2022-49893","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ncxl/region: Fix cxl_region leak, cleanup targets at region delete\n\nWhen a region is deleted any targets that have been previously assigned\nto that region hold references to it. Trigger those references to\ndrop by detaching all targets at unregister_region() time.\n\nOtherwise that region object will leak as userspace has lost the ability\nto detach targets once region sysfs is torn down.\n\n## Affected\n\n- `Linux >= b9686e8c8e39d4072081ef078c04915ee51c8af4 < 45d9fb4b758b9d602ee7776eb6754b0349946aad`\n- `Linux >= b9686e8c8e39d4072081ef078c04915ee51c8af4 < 0d9e734018d70cecf79e2e4c6082167160a0f13f`\n- `Linux 6.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}