CVE-2022-3523 Linux Kernel Driver memory.c use after free

What is CVE-2022-3523?

CVE-2022-3523 is a medium-severity use after free vulnerability in Linux kernel, published on 16 Oct 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is an unknown function of the file mm/memory.c of the component Driver Handler. The manipulation leads to use after free. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211020.

Weakness: CWE-416, CWE-119

Which versions are affected by CVE-2022-3523?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-3523?

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-2022-3523 being exploited?

There is no known exploitation of CVE-2022-3523 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2022-3523, GHSA-rw7h-fg8r-3w82, ROOT-OS-DEBIAN-11-CVE-2022-3523, ROOT-OS-UBUNTU-2204-CVE-2022-3523, UBUNTU-CVE-2022-3523.