Description
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.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 7c2af0f634f1bc761ca827310dc7e8e586af502f, < 7d3f15a664d115584fc177b5f2cfbdb3e5a50d60; >= 7c2af0f634f1bc761ca827310dc7e8e586af502f, < e5e11274b5512e24a346ed83f8dd85e3389d2f4b; >= 7c2af0f634f1bc761ca827310dc7e8e586af502f, < be98f92fc244688a6bdecbc834cf2cd243056d9d; >= 7c2af0f634f1bc761ca827310dc7e8e586af502f, < d73441232f1f067eb659e94447b1353c16609711; >= 7c2af0f634f1bc761ca827310dc7e8e586af502f, < 2f8e3cad53b5c36ab0ed5d3195bfc55c59ea61a5 |
| Linux | Linux | 6.2 |
References
- https://git.kernel.org/stable/c/2f8e3cad53b5c36ab0ed5d3195bfc55c59ea61a5
- https://git.kernel.org/stable/c/7d3f15a664d115584fc177b5f2cfbdb3e5a50d60
- https://git.kernel.org/stable/c/be98f92fc244688a6bdecbc834cf2cd243056d9d
- https://git.kernel.org/stable/c/d73441232f1f067eb659e94447b1353c16609711
- https://git.kernel.org/stable/c/e5e11274b5512e24a346ed83f8dd85e3389d2f4b
Timeline
- Published
- Sep 17, 2026
- Last modified
- Oct 19, 2026
- NVD status
- Received