Description
In the Linux kernel, the following vulnerability has been resolved:
tty: skip cdev_del() when no cdev is registered
TTY device registration can fail before a cdev is allocated. Serial core keeps the port so setserial can still use it, and later removal passes the NULL cdev slot to cdev_del(), causing a NULL-pointer dereference.
Only delete the cdev when the slot is not NULL.
Metrics
No CVSS score has been published yet.
Affected software
Source: the vendor's advisory (CNA). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= a3a10ce3429e5dee623ad5c8407ea58e204fcb0a, < 6c92b8d9c23a92f85b20bee3578d0f19cd1b1a68; >= a3a10ce3429e5dee623ad5c8407ea58e204fcb0a, < ea3d2fae7c1d6492145976553817d22e8ef69a0e; >= a3a10ce3429e5dee623ad5c8407ea58e204fcb0a, < 21031bd0d662549412378110c989b164feb6e4be; >= a3a10ce3429e5dee623ad5c8407ea58e204fcb0a, < 2af4c46b429907edc8cb069c78fca1d950120b98; >= a3a10ce3429e5dee623ad5c8407ea58e204fcb0a, < 3dbf85ef40b6366ba15e882f7536cdc98bea579a; >= a3a10ce3429e5dee623ad5c8407ea58e204fcb0a, < c3b5623fd97648f2747444aa8932ae604662df93 |
| Linux | Linux | 4.3 |
References
- https://git.kernel.org/stable/c/21031bd0d662549412378110c989b164feb6e4be
- https://git.kernel.org/stable/c/2af4c46b429907edc8cb069c78fca1d950120b98
- https://git.kernel.org/stable/c/3dbf85ef40b6366ba15e882f7536cdc98bea579a
- https://git.kernel.org/stable/c/6c92b8d9c23a92f85b20bee3578d0f19cd1b1a68
- https://git.kernel.org/stable/c/c3b5623fd97648f2747444aa8932ae604662df93
- https://git.kernel.org/stable/c/ea3d2fae7c1d6492145976553817d22e8ef69a0e
Timeline
- Published
- Sep 17, 2026
- Last modified
- Oct 30, 2026
- NVD status
- Received