{"id":"CVE-2026-90225","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-90225","summary":"nfc: llcp: read llcp_sock->local under the socket lock in getsockopt","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: llcp: read llcp_sock->local under the socket lock in getsockopt\n\nnfc_llcp_getsockopt() read llcp_sock->local before lock_sock(sk) and\nthen dereferenced the cached pointer inside the locked region.\nllcp_sock_bind() assigns and clears llcp_sock->local 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->local 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.","published":"2026-09-17T16:07:34.658Z","modified":"2026-09-19T03:46:52.461652798Z","cvss":{"score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.10.270"}],"fix":null,"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-19T03:46:52.461652798Z"}}