Unrated severityNVD Advisory· Published Sep 17, 2026· Updated Oct 30, 2026
CVE-2026-90335
CVE-2026-90335
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3- osv-coords2 versions
< 7.2.7-1.1+ 1 more
- (no CPE)range: < 7.2.7-1.1
- (no CPE)range: >= 4.3.0, < 6.1.191
Patches
Vulnerability mechanics
References
6- git.kernel.org/stable/c/21031bd0d662549412378110c989b164feb6e4benvd
- git.kernel.org/stable/c/2af4c46b429907edc8cb069c78fca1d950120b98nvd
- git.kernel.org/stable/c/3dbf85ef40b6366ba15e882f7536cdc98bea579anvd
- git.kernel.org/stable/c/6c92b8d9c23a92f85b20bee3578d0f19cd1b1a68nvd
- git.kernel.org/stable/c/c3b5623fd97648f2747444aa8932ae604662df93nvd
- git.kernel.org/stable/c/ea3d2fae7c1d6492145976553817d22e8ef69a0envd
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