CVE-2022-3526 Linux Kernel skb macvlan.c macvlan_handle_frame memory leak

What is CVE-2022-3526?

CVE-2022-3526 is a medium-severity denial of service vulnerability in Linux kernel, published on 16 Oct 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability classified as problematic was found in Linux Kernel. This vulnerability affects the function macvlan_handle_frame of the file drivers/net/macvlan.c of the component skb. The manipulation leads to memory leak. The attack can be initiated remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211024.

Weakness: CWE-401, CWE-404

Which versions are affected by CVE-2022-3526?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2022-3526?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2022-3526 being exploited?

There is no known exploitation of CVE-2022-3526 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-2022-3526, GHSA-ffmj-8phg-m99p, UBUNTU-CVE-2022-3526.