Riskcovery

CVE-2026-23122

igc: Reduce TSN TX packet buffer from 7KB to 5KB per queue

State
Published
Severity
Not scored
Published
Feb 14, 2026
Updated
May 11, 2026
Reserved
Jan 13, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

igc: Reduce TSN TX packet buffer from 7KB to 5KB per queue

The previous 7 KB per queue caused TX unit hangs under heavy timestamping load. Reducing to 5 KB avoids these hangs and matches the TSN recommendation in I225/I226 SW User Manual Section 7.5.4.

The 8 KB "freed" by this change is currently unused. This reduction is not expected to impact throughput, as the i226 is PCIe-limited for small TSN packets rather than TX-buffer-limited.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 0d58cdc902dace2298406b3972def04f55e3d775 to before 88037973c8ef6032bf84e9955595f8b20bc14c21Affected
  • 0d58cdc902dace2298406b3972def04f55e3d775 to before 8ad1b6c1e63d25f5465b7a8aa403bdcee84b86f9Affected
LinuxLinux
  • 6.16Affected
  • before 6.16Not affected
  • 6.18.8 through 6.18.*Not affected
  • 6.19 and laterNot affected

References

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