What’s Vulnerable › Vulnerabilities

CVE-2026-53087: net: bcmgenet: fix leaking free_bds

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-24 · updated 2026-07-23
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: net: bcmgenet: fix leaking free_bds While reclaiming the tx queue we fast forward the write pointer to drop any data in flight. These dropped frames are not added back to the pool of free bds. We also need to tell the netdev that we are dropping said data.

Affected products

• Linux kernel: from 6.15 before 6.18.33; from 6.19 before 7.0.10 — fixed in 6.18.33, 7.0.10

How to fix

Upgrade to a fixed version: Linux kernel 6.18.33, 7.0.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/150d06aae1839a6564ab200ef0e7291c3528bbb0
• https://git.kernel.org/stable/c/25ff3a3e47ea635ec08dc93e84dd2bfe15abfebb
• https://git.kernel.org/stable/c/3c3abbcfa05bad17965498ff7cc94c2418fa94b3
• https://git.kernel.org/stable/c/3f3168300efb839028328d720ab3962f91d6a0d0
• https://git.kernel.org/stable/c/52b9f80993698138b90e5ca3a72550a2501f2a96
• https://git.kernel.org/stable/c/ac4a29c331ecb5b10240c44247a8e010c95bc15b

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