CVE-2022-50767

Linux Kernel - Use-After-Free in smscufx fbdev Driver

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: smscufx: Fix several use-after-free bugs Several types of UAFs can occur when physically removing a USB device. Adds ufx_ops_destroy() function to .fb_destroy of fb_ops, and in this function, there is kref_put() that finally calls ufx_free(). This fix prevents multiple UAFs.

Scores

EPSS 0.0022
EPSS Percentile 12.5%

Details

Status published
Products (25)
linux/Kernel 3.2.0 - 4.9.332linux
linux/Kernel 4.10.0 - 4.14.298linux
linux/Kernel 4.15.0 - 4.19.264linux
linux/Kernel 4.20.0 - 5.4.223linux
linux/Kernel 5.11.0 - 5.15.77linux
linux/Kernel 5.16.0 - 6.0.7linux
linux/Kernel 5.5.0 - 5.10.153linux
Linux/Linux < 3.2
Linux/Linux 3.2
Linux/Linux 3c8a63e22a0802fd56380f6ab305b419f18eb6f5 - 3f40852d671072836fb7ae331a1f28a24223c4e8
... and 15 more
Published Dec 24, 2025
Tracked Since Feb 18, 2026