{"id":"CVE-2026-46180","summary":"wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task\n\nWatchdog task might end between send_sig() and kthread_stop() calls, what\nresults in the use-after-free issue. Fix this by increasing watchdog task\nreference count before calling send_sig() and dropping it by switching to\nkthread_stop_put().","modified":"2026-07-08T08:13:41.425127875Z","published":"2026-05-28T09:36:33.904Z","related":["openSUSE-SU-2026:10954-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46180.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366"},{"type":"WEB","url":"https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d616bb10de79e5c2bd8a24230a1128aeaf715615"},{"type":"WEB","url":"https://git.kernel.org/stable/c/df2e90d6a9955510f24f1dada78cfc439fd9fa88"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ed4168d1a50fef5be8eca947fbbf05a28507d265"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46180.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46180"},{"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":"a9ffda88be7416b8336f644806c2b3ed3ce08b26"},{"fixed":"a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a"},{"fixed":"df2e90d6a9955510f24f1dada78cfc439fd9fa88"},{"fixed":"d616bb10de79e5c2bd8a24230a1128aeaf715615"},{"fixed":"ed4168d1a50fef5be8eca947fbbf05a28507d265"},{"fixed":"d16827cb1d3936f7627d0da6044483f743ebde03"},{"fixed":"658d2e46c2e9a8eb9b80c5e803ce3c89885b3366"},{"fixed":"908b92231e1ded53e43fcfad5e0704d83e1b803c"},{"fixed":"c623b63580880cc742255eaed3d79804c1b91143"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46180.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.3.0"},{"fixed":"5.10.259"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.210"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.176"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.140"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.88"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.30"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.7"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46180.json"}}],"schema_version":"1.7.5"}