CVE-2026-90158 (GCVE-0-2026-90158)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:06 – Updated: 2026-10-19 08:58
VLAI
Title
m68k: nfcon: Do not call console_is_registered() in nfcon_device()
Summary
In the Linux kernel, the following vulnerability has been resolved: m68k: nfcon: Do not call console_is_registered() in nfcon_device() Since 7c2af0f634f1 ("tty: tty_io: use console_list_lock for list synchronization") show_cons_active() calls the .device() method under the console_list_lock, but console_is_registered() tries to acquire console_list_lock as well, causing a deadlock. It should not be necessary to check console_is_registered() here since the function should not be called in the fist place when the console is not registered.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6637 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 7c2af0f634f1bc761ca827310dc7e8e586af502f , < 7d3f15a664d115584fc177b5f2cfbdb3e5a50d60 (git)
Affected: 7c2af0f634f1bc761ca827310dc7e8e586af502f , < e5e11274b5512e24a346ed83f8dd85e3389d2f4b (git)
Affected: 7c2af0f634f1bc761ca827310dc7e8e586af502f , < be98f92fc244688a6bdecbc834cf2cd243056d9d (git)
Affected: 7c2af0f634f1bc761ca827310dc7e8e586af502f , < d73441232f1f067eb659e94447b1353c16609711 (git)
Affected: 7c2af0f634f1bc761ca827310dc7e8e586af502f , < 2f8e3cad53b5c36ab0ed5d3195bfc55c59ea61a5 (git)
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Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.157 , ≤ 6.6.* (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.52 , ≤ 6.18.* (semver)
Unaffected: 7.2.6 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
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}



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