What’s Vulnerable › Vulnerabilities

CVE-2024-35858: net: bcmasp: fix memory leak when bringing down interface

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-17 · updated 2026-08-04
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: net: bcmasp: fix memory leak when bringing down interface When bringing down the TX rings we flush the rings but forget to reclaimed the flushed packets. This leads to a memory leak since we do not free the dma mapped buffers. This also leads to tx control block corruption when bringing down the interface for power management.

Affected products

• Linux kernel: from 6.6 before 6.6.30; from 6.7 before 6.8.9; 6.9-rc1, 6.9-rc2, 6.9-rc3, 6.9-rc4, 6.9-rc5 — fixed in 6.6.30, 6.8.9

How to fix

Upgrade to a fixed version: Linux kernel 6.6.30, 6.8.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/09040baf8779ad880e0e0d0ea10e57aa929ef3ab
• https://git.kernel.org/stable/c/2389ad1990163d29cba5480d693b4c2e31cc545c
• https://git.kernel.org/stable/c/9f898fc2c31fbf0ac5ecd289f528a716464cb005
• https://git.kernel.org/stable/c/09040baf8779ad880e0e0d0ea10e57aa929ef3ab
• https://git.kernel.org/stable/c/2389ad1990163d29cba5480d693b4c2e31cc545c
• https://git.kernel.org/stable/c/9f898fc2c31fbf0ac5ecd289f528a716464cb005

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