CVE-2026-23165 sfc: fix deadlock in RSS config read

What is CVE-2026-23165?

CVE-2026-23165 is a medium-severity vulnerability in Linux kernel, published on 14 Feb 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

sfc: fix deadlock in RSS config read

Since cited commit, core locks the net_device's rss_lock when handling ethtool -x command, so driver's implementation should not lock it again. Remove the latter.

Weakness: CWE-667

Which versions are affected by CVE-2026-23165?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-23165?

Apply the vendor's patch.

Is CVE-2026-23165 being exploited?

There is no known exploitation of CVE-2026-23165 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 BELL-CVE-2026-23165, DEBIAN-CVE-2026-23165, GHSA-9vc4-746x-p2rf, UBUNTU-CVE-2026-23165.