What’s Vulnerable › Vulnerabilities

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

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-24 · updated 2026-10-19
• Weakness: CWE-362

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.

Affected products

• Linux kernel: from 4.2 before 6.1.175; from 6.2 before 6.6.141; from 6.7 before 6.12.91; from 6.13 before 6.18.33; from 6.19 before 7.0.10 — fixed in 6.1.175, 6.12.91, 6.18.33, 6.6.141, 7.0.10

How to fix

Upgrade to a fixed version: Linux kernel 6.1.175, 6.12.91, 6.18.33, 6.6.141. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/5393b2b5bee2ac51a0043dc7f4ac3475f053d08d
• https://git.kernel.org/stable/c/681fdfe823b4f1036ed50b58b8838c7917ea389c
• https://git.kernel.org/stable/c/7ce1c26aac3b318886a57425f64b522da7389153
• https://git.kernel.org/stable/c/c270e2bec3e55a716d25c35341091339457ac883
• https://git.kernel.org/stable/c/e8206538cbaf4f4068e99a4cb1138690a1e00499
• https://git.kernel.org/stable/c/e85b0c0a12e967930044608311471b665baa315c

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