CVE-2024-46855 netfilter: nft_socket: fix sk refcount leaks

What is CVE-2024-46855?

CVE-2024-46855 is a high-severity denial of service vulnerability in Linux kernel, published on 27 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In the Linux kernel, the following vulnerability has been resolved:

netfilter: nft_socket: fix sk refcount leaks

We must put 'sk' reference before returning.

Which versions are affected by CVE-2024-46855?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-46855?

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-2024-46855 being exploited?

There is no known exploitation of CVE-2024-46855 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 AZL-49801, AZL-49840, BELL-CVE-2024-46855, DEBIAN-CVE-2024-46855, GHSA-jc8x-x899-862j, ROOT-OS-DEBIAN-11-CVE-2024-46855 and 1 more.