CVE-2026-53086 net: bcmgenet: fix racing timeout handler

What is CVE-2026-53086?

CVE-2026-53086 is a critical vulnerability in Linux kernel, published on 24 Jun 2026. 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:

net: bcmgenet: fix racing timeout handler

The bcmgenet_timeout handler tries to take down all tx queues when a single queue times out. This is over zealous and causes many race conditions with queues that are still chugging along. Instead lets only restart the timed out queue.

Weakness: CWE-362

Which versions are affected by CVE-2026-53086?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2026-53086?

Apply the vendor's patch.

Is CVE-2026-53086 being exploited?

There is no known exploitation of CVE-2026-53086 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-2026-53086, DEBIAN-CVE-2026-53086, GHSA-39xw-f64j-hqp8, ROOT-OS-DEBIAN-11-CVE-2026-53086, ROOT-OS-DEBIAN-12-CVE-2026-53086, ROOT-OS-UBUNTU-2204-CVE-2026-53086 and 2 more.