CVE-2026-90121

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-90121", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.787Z", "datePublished": "2026-09-17T16:06:25.253Z", "dateUpdated": "2026-10-19T08:58:19.637Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T08:58:19.637Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v5: Clear per-CPU IRS data on teardown\n\nIRS affinity setup publishes an IRS pointer and IAFFID state in the\nper-CPU data before the remaining IRS initialization can fail. The\nerror path then frees the IRS data without clearing that published\nstate, leaving CPUs associated with freed memory.\n\nOn initialization failure and normal IRS teardown, clear the per-CPU\nIRS association by removing the stale pointer to irs_data. Also\ninvalidate the per-CPU IAFFID state for any CPUs that were tied to the\nIRS before it was freed."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/irqchip/irq-gic-v5-irs.c"], "versions": [{"version": "5cb1b6dab2def316671ea2565291a86ad58b884c", "lessThan": "0887d41abf76638942688cb0c0ff8087f52e2b33", "status": "affected", "versionType": "git"}, {"version": "5cb1b6dab2def316671ea2565291a86ad58b884c", "lessThan": "54937af6f4a0d44c2852a203d457902f3264c906", "status": "affected", "versionType": "git"}, {"version": "5cb1b6dab2def316671ea2565291a86ad58b884c", "lessThan": "3dfc0ab5fefd052c6028c4632b1fad8bdaf7967e", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/irqchip/irq-gic-v5-irs.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "6.18.57"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0887d41abf76638942688cb0c0ff8087f52e2b33"}, {"url": "https://git.kernel.org/stable/c/54937af6f4a0d44c2852a203d457902f3264c906"}, {"url": "https://git.kernel.org/stable/c/3dfc0ab5fefd052c6028c4632b1fad8bdaf7967e"}], "title": "irqchip/gic-v5: Clear per-CPU IRS data on teardown", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/irqchip/irq-gic-v5-irs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "0887d41abf76638942688cb0c0ff8087f52e2b33", "status": "affected", "version": "5cb1b6dab2def316671ea2565291a86ad58b884c", "versionType": "git"}, {"lessThan": "54937af6f4a0d44c2852a203d457902f3264c906", "status": "affected", "version": "5cb1b6dab2def316671ea2565291a86ad58b884c", "versionType": "git"}, {"lessThan": "3dfc0ab5fefd052c6028c4632b1fad8bdaf7967e", "status": "affected", "version": "5cb1b6dab2def316671ea2565291a86ad58b884c", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/irqchip/irq-gic-v5-irs.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.17"}, {"lessThan": "6.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.57", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nirqchip/gic-v5: Clear per-CPU IRS data on teardown\n\nIRS affinity setup publishes an IRS pointer and IAFFID state in the\nper-CPU data before the remaining IRS initialization can fail. The\nerror path then frees the IRS data without clearing that published\nstate, leaving CPUs associated with freed memory.\n\nOn initialization failure and normal IRS teardown, clear the per-CPU\nIRS association by removing the stale pointer to irs_data. Also\ninvalidate the per-CPU IAFFID state for any CPUs that were tied to the\nIRS before it was freed."}], "id": "CVE-2026-90121", "lastModified": "2026-10-19T09:19:01.617", "metrics": {}, "published": "2026-09-17T17:17:04.310", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0887d41abf76638942688cb0c0ff8087f52e2b33"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3dfc0ab5fefd052c6028c4632b1fad8bdaf7967e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/54937af6f4a0d44c2852a203d457902f3264c906"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cb1b6dab2def316671ea2565291a86ad58b884c,54937af6f4a0d44c2852a203d457902f3264c906)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[5cb1b6dab2def316671ea2565291a86ad58b884c,3dfc0ab5fefd052c6028c4632b1fad8bdaf7967e)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-18T17:00:12.831140+00:00", "updated": "2026-09-20T03:00:11.250393+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416"]}