{"id":"CVE-2026-90225","summary":"nfc: llcp: read llcp_sock-\u003elocal under the socket lock in getsockopt","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: read llcp_sock-\u003elocal under the socket lock in getsockopt\n\nnfc_llcp_getsockopt() read llcp_sock-\u003elocal before lock_sock(sk) and\nthen dereferenced the cached pointer inside the locked region.\nllcp_sock_bind() assigns and clears llcp_sock-\u003elocal under the same\nsocket lock, dropping the last reference on its error path. A\ngetsockopt() racing an in-flight bind() can observe the pointer, block\non lock_sock(), and then dereference a freed nfc_llcp_local once bind()\nhas unwound.\n\nMove the llcp_sock-\u003elocal read and the NULL check inside the\nlock_sock(sk) region so bind() cannot mutate or free the pointer between\nthe load and the use.","modified":"2026-09-19T03:46:52.461652798Z","published":"2026-09-17T16:07:34.658Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90225.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/156e65bd29307f5053835bff60bc1ba342fa010f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2d8ac24565be85bf56580b87bf1b874d35625eb5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/36812527052c5bfb1ec6c1e292d67a5bf76b750f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/56fd158fef20268f48db6cdfe5d722e930134eda"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8ba8cec0586727cc135ca4827921fc7b52946d71"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d1b73962675cdc5a58e2707e25b548d8b495fde0"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ed5240bab3468988077fe8bf29b935eaecc9ff89"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fe65727a4a21b11c18eebae1338482767a897b76"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90225.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90225"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"26fd76cab2e61cedc5c25f7151fb31b57ddc53c7"},{"fixed":"56fd158fef20268f48db6cdfe5d722e930134eda"},{"fixed":"8ba8cec0586727cc135ca4827921fc7b52946d71"},{"fixed":"ed5240bab3468988077fe8bf29b935eaecc9ff89"},{"fixed":"fe65727a4a21b11c18eebae1338482767a897b76"},{"fixed":"2d8ac24565be85bf56580b87bf1b874d35625eb5"},{"fixed":"156e65bd29307f5053835bff60bc1ba342fa010f"},{"fixed":"d1b73962675cdc5a58e2707e25b548d8b495fde0"},{"fixed":"36812527052c5bfb1ec6c1e292d67a5bf76b750f"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90225.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.10.0"},{"fixed":"5.10.270"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.221"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90225.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}