{"id":"CVE-2022-50482","title":"iommu/vt-d: Clean up si_domain in the init_dmars() error path","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Clean up si_domain in the init_dmars() error path\n\nA splat from kmem_cache_destroy() was seen with a kernel prior to\ncommit ee2653bbe89d (\"iommu/vt-d: Remov…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < 749bea542b67513e99240dc58bbfc099e842d508","Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < 5cecfe151874b835331efe086bbdcaeaf64f6b90","Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < 724483b585a1b1e063d42ac5aa835707ff2ec165","Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < d74196bb278b8f8af88e16bd595997dfa3d6fdb0","Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < 0365d6af75f9f2696e94a0fef24a2c8464c037c8","Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < c4ad3ae4c6be9d8b0701761c839771116bca6ea3","Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < 620bf9f981365c18cc2766c53d92bf8131c63f32","Linux 4.2"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T20:12:09.027063Z"},"published":"2025-10-04","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:20:48.675Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-50482","references":[{"url":"https://git.kernel.org/stable/c/749bea542b67513e99240dc58bbfc099e842d508"},{"url":"https://git.kernel.org/stable/c/5cecfe151874b835331efe086bbdcaeaf64f6b90"},{"url":"https://git.kernel.org/stable/c/724483b585a1b1e063d42ac5aa835707ff2ec165"},{"url":"https://git.kernel.org/stable/c/d74196bb278b8f8af88e16bd595997dfa3d6fdb0"},{"url":"https://git.kernel.org/stable/c/0365d6af75f9f2696e94a0fef24a2c8464c037c8"},{"url":"https://git.kernel.org/stable/c/c4ad3ae4c6be9d8b0701761c839771116bca6ea3"},{"url":"https://git.kernel.org/stable/c/620bf9f981365c18cc2766c53d92bf8131c63f32"}],"tags":["cve.org"],"epss":0.00163,"epssPercentile":0.05528,"ingestedAt":"2026-11-05T22:38:31.741Z","slug":"CVE-2022-50482","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\niommu/vt-d: Clean up si_domain in the init_dmars() error path\n\nA splat from kmem_cache_destroy() was seen with a kernel prior to\ncommit ee2653bbe89d (\"iommu/vt-d: Remove domain and devinfo mempool\")\nwhen there was a failure in init_dmars(), because the iommu_domain\ncache still had objects. While the mempool code is now gone, there\nstill is a leak of the si_domain memory if init_dmars() fails. So\nclean up si_domain in the init_dmars() error path.\n\n## Affected\n\n- `Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < 749bea542b67513e99240dc58bbfc099e842d508`\n- `Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < 5cecfe151874b835331efe086bbdcaeaf64f6b90`\n- `Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < 724483b585a1b1e063d42ac5aa835707ff2ec165`\n- `Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < d74196bb278b8f8af88e16bd595997dfa3d6fdb0`\n- `Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < 0365d6af75f9f2696e94a0fef24a2c8464c037c8`\n- `Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < c4ad3ae4c6be9d8b0701761c839771116bca6ea3`\n- `Linux >= 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 < 620bf9f981365c18cc2766c53d92bf8131c63f32`\n- `Linux 4.2`\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":[]}