{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2026-90092", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-90092", "idYear": 2026, "status": "PUBLISHED", "publishedAt": "2026-09-17T16:06:06.197Z", "updatedAt": "2026-10-19T08:57:50.446Z", "importedAt": "2026-10-24T01:58:35.090Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "Bluetooth: L2CAP: reject accept queue add unless BT_LISTEN", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: reject accept queue add unless BT_LISTEN\n\nNew sk should not be added to parent socket accept queue after last\nl2cap_sock_cleanup_listen() has run in l2cap_sock_teardown_cb() and\nstate set to BT_CLOSED, as that can result to UAF on dereferencing the\ndangling parent reference.\n\nl2cap_sock_new_connection_cb() may race with parent l2cap_chan teardown,\ndue to chan->state accessed without consistent locking:\n\n [Task 1] [Task 2]\n l2cap_sock_release(parent) l2cap_connect\n l2cap_sock_shutdown pchan = l2cap_global_chan_by_psm\n l2cap_chan_lock(pchan)\n l2cap_chan_close\n l2cap_sock_teardown_cb\n pchan->state = BT_CLOSED\n l2cap_chan_unlock(pchan) ------> l2cap_chan_lock(pchan)\n l2cap_new_connection\n l2cap_sock_new_connection_cb\n l2cap_chan_lock(pchan) <-------- l2cap_chan_unlock(pchan)\n l2cap_sock_kill(parent) /* bt_sk(sk)->parent dangling */\n\nFix by adding check for sk_state == BT_LISTEN after acquiring sk lock in\nl2cap_sock_new_connection_cb(). Add lock_sock() around sk_state writes\nwhere missing, to avoid data races.\n\nAlthough the data races on pchan->state should be fixed too, this\ndefensive sk_state check probably makes sense in any case.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "0c17c8832562b2aac288e89cefd0f46074f54bcb", "status": "affected", "versionType": "git", "lessThan": "bf61a65c6093970e3b50031c4b79ebf3bd411eba" }, { "version": "5105f3e6b2df619c635b5f6a49fac131a36c7952", "status": "affected", "versionType": "git", "lessThan": "491e4c60017969b053888029998d2a61f298986a" }, { "version": "c88c185ae0a1067823661b220aeea613df2c127b", "status": "affected", "versionType": "git", "lessThan": "2a3a27aaf19bf069720e024ce6fde54e6bf80df9" }, { "version": "1810e42ff6716f320c7269d5850eca48b07b7427", "status": "affected", "versionType": "git", "lessThan": "87276dc15b559d32757a43b4415c8445fbae06c4" }, { "version": "2ff1a41a912de8517b4482e946dd951b7d80edbf", "status": "affected", "versionType": "git", "lessThan": "c47339e169bf4a0a4cfabb91351471f67744c2bc" }, { "version": "2ff1a41a912de8517b4482e946dd951b7d80edbf", "status": "affected", "versionType": "git", "lessThan": "d4bfa78fd67929b62b02013c107973e0c5b7aa9a" }, { "version": "1b1c0da227bf63479bac9982fc8d12df9aaea0fb", "status": "affected", "versionType": "git" }, { "version": "85426e97dc72f2088ba6d27e74cd58c3fbd43e31", "status": "affected", "versionType": "git" }, { "version": "a2dcf1a61d056aef15b63c6eae9441344d624389", "status": "affected", "versionType": "git" }, { "version": "6.1.175", "status": "affected", "versionType": "semver", "lessThan": "6.1.188" }, { "version": "6.6.140", "status": "affected", "versionType": "semver", "lessThan": "6.6.157" }, { "version": "6.12.88", "status": "affected", "versionType": "semver", "lessThan": "6.12.110" }, { "version": "6.18.30", "status": "affected", "versionType": "semver", "lessThan": "6.18.52" }, { "version": "5.10.258", "status": "affected", "versionType": "semver", "lessThan": "5.11" }, { "version": "5.15.209", "status": "affected", "versionType": "semver", "lessThan": "5.16" }, { "version": "7.0.7", "status": "affected", "versionType": "semver", "lessThan": "7.1" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "7.1", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "7.1" }, { "version": "6.1.188", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.157", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.110", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.18.52", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.18.*" }, { "version": "7.2.6", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "7.2.*" }, { "version": "7.3", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }