VYPR
← All advisories
Unrated severityNVD Advisory· Published Sep 6, 2023· Updated Feb 13, 2025

Use-after-free in Linux kernel's af_unix component

CVE-2023-4622

Description

A use-after-free vulnerability in the Linux kernel's af_unix component can be exploited to achieve local privilege escalation.

The unix_stream_sendpage() function tries to add data to the last skb in the peer's recv queue without locking the queue. Thus there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free.

We recommend upgrading past commit 790c2f9d15b594350ae9bca7b236f2b1859de02c.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

266

Patches

Vulnerability mechanics

References

6

News mentions

0

No linked articles in our index yet.