{"schema":"threatline.record/2","record":{"id":"CVE-2026-98855","aliases":[],"summary":"of/overlay: put property on deadprops only after changeset add succeeds","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nof/overlay: put property on deadprops only after changeset add succeeds\n\nadd_changeset_property() links a new property of a not-yet-live\ntarget node into the node's deadprops list before handing it to\nof_changeset_add_property(). If that fails, the error path frees the\nproperty but leaves the freed pointer linked in deadprops, and\nof_node_release() frees it a second time when the aborted overlay's\nnode is released.\n\nRecord the changeset entry first and link the property into deadprops\nonly on success. of_changeset_add_property() never looks at the\nnode's property lists, so the order of the two steps is otherwise\nimmaterial, and the error path frees a property that nothing\nreferences.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98855","source_modified_at":"2026-10-21T12:57:34.195Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"f96278810150fc39085d1872e5b39ea06366d03e","lessThan":"936f1ffcb87a1c50938a21176a6463af162cf4b5","status":"affected","versionType":"git"},{"version":"f96278810150fc39085d1872e5b39ea06366d03e","lessThan":"d5151496a0a2b19c9c0c7b0ebf86b3de55a8fa3a","status":"affected","versionType":"git"},{"version":"f96278810150fc39085d1872e5b39ea06366d03e","lessThan":"7dc6a769153c0457077a0da4888a00f61e66de15","status":"affected","versionType":"git"},{"version":"f96278810150fc39085d1872e5b39ea06366d03e","lessThan":"5857035a3b53a4e7b5a0d5a740189901ece0b079","status":"affected","versionType":"git"},{"version":"f96278810150fc39085d1872e5b39ea06366d03e","lessThan":"814f2da6995772c07a7c9c2cc6028b6e3f3ecc9c","status":"affected","versionType":"git"},{"version":"b52ca352489be8beb7de3a8181509a0deaf72e21","status":"affected","versionType":"git"},{"version":"4.19.49","lessThan":"4.20","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98855","source_modified_at":"2026-10-21T12:57:34.195Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"5.0","status":"affected"},{"version":"0","lessThan":"5.0","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.56","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.10","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98855","source_modified_at":"2026-10-21T12:57:34.195Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"936f1ffcb87a1c50938a21176a6463af162cf4b5","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98855","source_modified_at":"2026-10-21T12:57:34.195Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7dc6a769153c0457077a0da4888a00f61e66de15","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98855","source_modified_at":"2026-10-21T12:57:34.195Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"5857035a3b53a4e7b5a0d5a740189901ece0b079","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98855","source_modified_at":"2026-10-21T12:57:34.195Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"814f2da6995772c07a7c9c2cc6028b6e3f3ecc9c","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98855","source_modified_at":"2026-10-21T12:57:34.195Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"4.20","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00157,"percentile":0.04453,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:51:09.970Z","modified_at":"2026-10-21T12:57:34.195Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98855","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T12:57:34.195Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98855","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/936f1ffcb87a1c50938a21176a6463af162cf4b5"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/d5151496a0a2b19c9c0c7b0ebf86b3de55a8fa3a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7dc6a769153c0457077a0da4888a00f61e66de15"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/5857035a3b53a4e7b5a0d5a740189901ece0b079"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/814f2da6995772c07a7c9c2cc6028b6e3f3ecc9c"}],"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":"2026-10-21T12:57:34.195Z","content_hash":"ca0686318d03a3fa7026197e7120630675b6343950c12faedd78b7ba9ce8b9d0"}}