Linux Kernel UA-FREE in mm/mremap.c PUD move (5.13.2)
CVE-2022-41222 Published on September 21, 2022
mm/mremap.c in the Linux kernel before 5.13.3 has a use-after-free via a stale TLB because an rmap lock is not held during a PUD move.
Vulnerability Analysis
CVE-2022-41222 is exploitable with local system access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2022-41222. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2022-41222 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2022-41222
You can be notified by email with stack.watch whenever vulnerabilities like CVE-2022-41222 are published in these products:
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.