{"id":"CVE-2026-90158","state":"PUBLISHED","title":"m68k: nfcon: Do not call console_is_registered() in nfcon_device()","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.","publishedAt":"2026-09-17T16:06:49.735Z","updatedAt":"2026-10-19T08:58:56.902Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7c2af0f634f1bc761ca827310dc7e8e586af502f","status":"affected","lessThan":"7d3f15a664d115584fc177b5f2cfbdb3e5a50d60","versionType":"git"},{"version":"7c2af0f634f1bc761ca827310dc7e8e586af502f","status":"affected","lessThan":"e5e11274b5512e24a346ed83f8dd85e3389d2f4b","versionType":"git"},{"version":"7c2af0f634f1bc761ca827310dc7e8e586af502f","status":"affected","lessThan":"be98f92fc244688a6bdecbc834cf2cd243056d9d","versionType":"git"},{"version":"7c2af0f634f1bc761ca827310dc7e8e586af502f","status":"affected","lessThan":"d73441232f1f067eb659e94447b1353c16609711","versionType":"git"},{"version":"7c2af0f634f1bc761ca827310dc7e8e586af502f","status":"affected","lessThan":"2f8e3cad53b5c36ab0ed5d3195bfc55c59ea61a5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/m68k/emu/nfcon.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.2","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/m68k/emu/nfcon.c"]}],"references":["https://git.kernel.org/stable/c/7d3f15a664d115584fc177b5f2cfbdb3e5a50d60","https://git.kernel.org/stable/c/e5e11274b5512e24a346ed83f8dd85e3389d2f4b","https://git.kernel.org/stable/c/be98f92fc244688a6bdecbc834cf2cd243056d9d","https://git.kernel.org/stable/c/d73441232f1f067eb659e94447b1353c16609711","https://git.kernel.org/stable/c/2f8e3cad53b5c36ab0ed5d3195bfc55c59ea61a5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90158.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90158","state":"PUBLISHED","datePublished":"2026-09-17T16:06:49.735Z","dateUpdated":"2026-10-19T08:58:56.902Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.790Z"},"containers":{"cna":{"title":"m68k: nfcon: Do not call console_is_registered() in nfcon_device()","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7c2af0f634f1bc761ca827310dc7e8e586af502f","status":"affected","lessThan":"7d3f15a664d115584fc177b5f2cfbdb3e5a50d60","versionType":"git"},{"version":"7c2af0f634f1bc761ca827310dc7e8e586af502f","status":"affected","lessThan":"e5e11274b5512e24a346ed83f8dd85e3389d2f4b","versionType":"git"},{"version":"7c2af0f634f1bc761ca827310dc7e8e586af502f","status":"affected","lessThan":"be98f92fc244688a6bdecbc834cf2cd243056d9d","versionType":"git"},{"version":"7c2af0f634f1bc761ca827310dc7e8e586af502f","status":"affected","lessThan":"d73441232f1f067eb659e94447b1353c16609711","versionType":"git"},{"version":"7c2af0f634f1bc761ca827310dc7e8e586af502f","status":"affected","lessThan":"2f8e3cad53b5c36ab0ed5d3195bfc55c59ea61a5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/m68k/emu/nfcon.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.2","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["arch/m68k/emu/nfcon.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/7d3f15a664d115584fc177b5f2cfbdb3e5a50d60"},{"url":"https://git.kernel.org/stable/c/e5e11274b5512e24a346ed83f8dd85e3389d2f4b"},{"url":"https://git.kernel.org/stable/c/be98f92fc244688a6bdecbc834cf2cd243056d9d"},{"url":"https://git.kernel.org/stable/c/d73441232f1f067eb659e94447b1353c16609711"},{"url":"https://git.kernel.org/stable/c/2f8e3cad53b5c36ab0ed5d3195bfc55c59ea61a5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:58:56.902Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}