Not yet scoredPublished Sep 17, 2026

CVE-2026-90158m68k: nfcon: Do not call console_is_registered() in nfcon_device()

Updated under an hour ago (Oct 26, 2026, 7:10 PM ET)

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Exploited in the last 30 days

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.

CVSS: Not yet scored
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 19, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 7c2af0f634f1bc761ca827310dc7e8e586af502f before 7d3f15a664d115584fc177b5f2cfbdb3e5a50d60; from 7c2af0f634f1bc761ca827310dc7e8e586af502f before e5e11274b5512e24a346ed83f8dd85e3389d2f4b; from 7c2af0f634f1bc761ca827310dc7e8e586af502f before be98f92fc244688a6bdecbc834cf2cd243056d9d; from 7c2af0f634f1bc761ca827310dc7e8e586af502f before d73441232f1f067eb659e94447b1353c16609711; 7c2af0f634f1bc761ca827310dc7e8e586af502f builds before 2f8e3cad53b5c36ab0ed5d3195bfc55c59ea61a5	CNA record

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.