{"id":"CVE-2026-90158","published":"2026-09-17T17:17:08.963","lastModified":"2026-09-17T17:17:08.963","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nm68k: nfcon: Do not call console_is_registered() in nfcon_device()\n\nSince 7c2af0f634f1 (\"tty: tty_io: use console_list_lock for list\nsynchronization\") show_cons_active() calls the .device() method under\nthe console_list_lock, but console_is_registered() tries to acquire\nconsole_list_lock as well, causing a deadlock.  It should not be\nnecessary to check console_is_registered() here since the function\nshould not be called in the fist place when the console is not\nregistered.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/2f8e3cad53b5c36ab0ed5d3195bfc55c59ea61a5","tags":[]},{"url":"https://git.kernel.org/stable/c/7d3f15a664d115584fc177b5f2cfbdb3e5a50d60","tags":[]},{"url":"https://git.kernel.org/stable/c/be98f92fc244688a6bdecbc834cf2cd243056d9d","tags":[]},{"url":"https://git.kernel.org/stable/c/d73441232f1f067eb659e94447b1353c16609711","tags":[]},{"url":"https://git.kernel.org/stable/c/e5e11274b5512e24a346ed83f8dd85e3389d2f4b","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}