CVE-2026-23122
Medium
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.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedFeb 14, 2026
First seenFeb 14, 2026
How to fix
Update
- linux linux_kernel6.18.8 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.16 ≤ v < 6.18.8, 6.19 | 6.18.8 |
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