CVE-2022-41849 Use after free in n/a

Medium 4.2 Published 30 Sep 2022 Updated 14 Oct 2026

A race condition in the Linux kernel's smscufx driver allows a physically proximate attacker to trigger a use-after-free, potentially leading to code execution or privilege escalation.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2022-41849?

CVE-2022-41849 is a medium-severity use after free vulnerability in Debian Debian Linux, published on 30 Sep 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

drivers/video/fbdev/smscufx.c in the Linux kernel through 5.19.12 has a race condition and resultant use-after-free if a physically proximate attacker removes a USB device while calling open(), aka a race condition between ufx_ops_open and ufx_usb_disconnect.

Weakness: CWE-416, CWE-362

Which versions are affected by CVE-2022-41849?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2022-41849?

Apply the vendor's patch.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2022-41849 being exploited?

There is no known exploitation of CVE-2022-41849 in the wild and no public exploit code.

All Debian Debian Linux vulnerabilities

Sources

Also known as AZL-11080, DEBIAN-CVE-2022-41849, GHSA-mfp9-chmw-53h7, UBUNTU-CVE-2022-41849.