{"id":"CVE-2026-45848","summary":"apparmor: fix NULL sock in aa_sock_file_perm","details":"In the Linux kernel, the following vulnerability has been resolved:\n\napparmor: fix NULL sock in aa_sock_file_perm\n\nDeal with the potential that sock and sock-sk can be NULL during\nsocket setup or teardown. This could lead to an oops. The fix for NULL\npointer dereference in __unix_needs_revalidation shows this is at\nleast possible for af_unix sockets. While the fix for af_unix sockets\napplies for newer mediation this is still the fall back path for older\naf_unix mediation and other sockets, so ensure it is covered.","modified":"2026-06-27T11:55:23.042032841Z","published":"2026-05-27T12:15:12.310Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45848.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/00b67657535dfea56e84d11492f5c0f61d0af297"},{"type":"WEB","url":"https://git.kernel.org/stable/c/0dc19bca22606f7a61d5988408f74e3ae0ef3486"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3852eb9a0392eb435c03dcb47d581bcfe6a9a95b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5121b7283f1c46e4c06b88b1dda7b064429d77de"},{"type":"WEB","url":"https://git.kernel.org/stable/c/68538ec34fcb4194c7961dc4eca6f5537fec8067"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8a0ededbfcff74598f82f1d4b8ef9db28878b317"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c11b7c3280d000376e27ebfed17ec7046699eab4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45848.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45848"},{"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":"56974a6fcfef69ee0825bd66ed13e92070ac5224"},{"fixed":"68538ec34fcb4194c7961dc4eca6f5537fec8067"},{"fixed":"5121b7283f1c46e4c06b88b1dda7b064429d77de"},{"fixed":"c11b7c3280d000376e27ebfed17ec7046699eab4"},{"fixed":"0dc19bca22606f7a61d5988408f74e3ae0ef3486"},{"fixed":"3852eb9a0392eb435c03dcb47d581bcfe6a9a95b"},{"fixed":"ccb66a3c6c8f51b3ed1bc003b70bb9ff99e8d835"},{"fixed":"8a0ededbfcff74598f82f1d4b8ef9db28878b317"},{"fixed":"00b67657535dfea56e84d11492f5c0f61d0af297"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45848.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.17.0"},{"fixed":"5.10.252"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.202"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.165"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.128"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.14"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-45848.json"}}],"schema_version":"1.7.5"}