Linux vulnerability

In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix Tx L4 checksum The hardware only supports L4 checksum offload for TCP/UDP/SCTP protocol. There was a bug to set Tx checksum flag for the other protocol that results in Tx ring hang. Fix to compute software checksum for these packets.

Published 16 Apr 2025Updated 14 Sep 20264 sources
CVSS 5.5

What happened

In the Linux kernel, the following vulnerability has been resolved: net: libwx: fix Tx L4 checksum The hardware only supports L4 checksum offload for TCP/UDP/SCTP protocol. There was a bug to set Tx checksum flag for the other protocol that results in Tx ring hang. Fix to compute software checksum for these packets.

Affected versions

Linux: 3403960cdf86c967442dccc2bec981e0093f716e through before 9c6c85ae77efbe29420883082b3a7b9fd2c57602 (git); 3403960cdf86c967442dccc2bec981e0093f716e through before 6d56ea133adf0389b216ba6e47f7f35e95776713 (git); 3403960cdf86c967442dccc2bec981e0093f716e through before 5f583e059eced1857f41e221ef5951e029e632bd (git); 3403960cdf86c967442dccc2bec981e0093f716e through before c7d82913d5f9e97860772ee4051eaa66b56a6273 (git); 6.5 Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.