{"schema":"threatline.record/2","record":{"id":"CVE-2026-93815","aliases":[],"summary":"net: au1000: move free_irq out of the close-time spinlocked section","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: au1000: move free_irq out of the close-time spinlocked section\n\nau1000_close() calls free_irq() while aup->lock is still held with\nspin_lock_irqsave(). free_irq() can sleep because it takes the IRQ\ndescriptor request mutex, so it does not belong inside the close-time\nspinlocked section.\n\nThis was found by our static analysis tool and then confirmed by manual\nreview of the in-tree au1000_close() .ndo_stop path. The reviewed path\nkeeps aup->lock held across the MAC reset, queue stop and\nfree_irq(dev->irq, dev).\n\nA directed runtime validation kept that ndo_stop carrier and the same\nfree_irq(dev->irq, dev) operation under the driver lock. Lockdep reported\n\"BUG: sleeping function called from invalid context\" and \"Invalid wait\ncontext\" while free_irq() was taking desc->request_mutex, with\nau1000_close() and free_irq() on the stack.\n\nDrop aup->lock before freeing the IRQ. The protected close-time work still\nstops the device and queue before IRQ teardown, but the sleepable IRQ core\npath now runs outside the spinlocked section.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93815","source_modified_at":"2026-10-03T10:57:48.033Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"f86bca5b7857b85bfa8afdb4fa895d7c0a3f7ebc","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"26fd652915123a690f19d62b253b545a53f3cd51","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"d514b08ed61fdffe23604fd3e9e53c07cbe5ac3e","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"e1b5a13249975fec3cf654efa84f57118db2da2c","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"4536667fba8ddbaff2f2a135080ae6aabf737b5e","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"fc2233f1ab2a1ca562869bca6987d7477671388c","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"f48763beab4eea41fc480c9702ec6eebe8d75e4f","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93815","source_modified_at":"2026-10-03T10:57:48.033Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93815","source_modified_at":"2026-10-03T10:57:48.033Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"26fd652915123a690f19d62b253b545a53f3cd51","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-93815","source_modified_at":"2026-10-03T10:57:48.033Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"4536667fba8ddbaff2f2a135080ae6aabf737b5e","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00173,"percentile":0.06359,"score_date":"2026-10-23"},"published_at":"2026-09-24T16:02:52.078Z","modified_at":"2026-10-03T10:57:48.033Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-93815","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-03T10:57:48.033Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-93815","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/f86bca5b7857b85bfa8afdb4fa895d7c0a3f7ebc"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/26fd652915123a690f19d62b253b545a53f3cd51"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/d514b08ed61fdffe23604fd3e9e53c07cbe5ac3e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e1b5a13249975fec3cf654efa84f57118db2da2c"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/4536667fba8ddbaff2f2a135080ae6aabf737b5e"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/fc2233f1ab2a1ca562869bca6987d7477671388c"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f48763beab4eea41fc480c9702ec6eebe8d75e4f"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-03T10:57:48.033Z","content_hash":"f144e6562008ae4a20a311fcc8ce5a6b16876d681568f086df33e8afb2f22656"}}