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Vulnerability Details CVE-2026-23122

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.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.0

EPSS Ranking 6.9%

CVSS Severity

CVSS v3 Score 5.5

References

Products affected by CVE-2026-23122

Linux » Linux Kernel » Version: 6.16

cpe:2.3:o:linux:linux_kernel:6.16
Linux » Linux Kernel » Version: 6.16.1

cpe:2.3:o:linux:linux_kernel:6.16.1
Linux » Linux Kernel » Version: 6.16.10

cpe:2.3:o:linux:linux_kernel:6.16.10
Linux » Linux Kernel » Version: 6.16.11

cpe:2.3:o:linux:linux_kernel:6.16.11
Linux » Linux Kernel » Version: 6.16.12

cpe:2.3:o:linux:linux_kernel:6.16.12
Linux » Linux Kernel » Version: 6.16.2

cpe:2.3:o:linux:linux_kernel:6.16.2
Linux » Linux Kernel » Version: 6.16.3

cpe:2.3:o:linux:linux_kernel:6.16.3
Linux » Linux Kernel » Version: 6.16.4

cpe:2.3:o:linux:linux_kernel:6.16.4
Linux » Linux Kernel » Version: 6.16.5

cpe:2.3:o:linux:linux_kernel:6.16.5
Linux » Linux Kernel » Version: 6.16.6

cpe:2.3:o:linux:linux_kernel:6.16.6
Linux » Linux Kernel » Version: 6.16.7

cpe:2.3:o:linux:linux_kernel:6.16.7
Linux » Linux Kernel » Version: 6.16.8

cpe:2.3:o:linux:linux_kernel:6.16.8
Linux » Linux Kernel » Version: 6.16.9

cpe:2.3:o:linux:linux_kernel:6.16.9
Linux » Linux Kernel » Version: 6.17

cpe:2.3:o:linux:linux_kernel:6.17
Linux » Linux Kernel » Version: 6.17.1

cpe:2.3:o:linux:linux_kernel:6.17.1
Linux » Linux Kernel » Version: 6.17.10

cpe:2.3:o:linux:linux_kernel:6.17.10
Linux » Linux Kernel » Version: 6.17.11

cpe:2.3:o:linux:linux_kernel:6.17.11
Linux » Linux Kernel » Version: 6.17.12

cpe:2.3:o:linux:linux_kernel:6.17.12
Linux » Linux Kernel » Version: 6.17.13

cpe:2.3:o:linux:linux_kernel:6.17.13
Linux » Linux Kernel » Version: 6.17.2

cpe:2.3:o:linux:linux_kernel:6.17.2
Linux » Linux Kernel » Version: 6.17.3

cpe:2.3:o:linux:linux_kernel:6.17.3
Linux » Linux Kernel » Version: 6.17.4

cpe:2.3:o:linux:linux_kernel:6.17.4
Linux » Linux Kernel » Version: 6.17.5

cpe:2.3:o:linux:linux_kernel:6.17.5
Linux » Linux Kernel » Version: 6.17.6

cpe:2.3:o:linux:linux_kernel:6.17.6
Linux » Linux Kernel » Version: 6.17.7

cpe:2.3:o:linux:linux_kernel:6.17.7
Linux » Linux Kernel » Version: 6.17.8

cpe:2.3:o:linux:linux_kernel:6.17.8
Linux » Linux Kernel » Version: 6.17.9

cpe:2.3:o:linux:linux_kernel:6.17.9
Linux » Linux Kernel » Version: 6.18

cpe:2.3:o:linux:linux_kernel:6.18
Linux » Linux Kernel » Version: 6.18.1

cpe:2.3:o:linux:linux_kernel:6.18.1
Linux » Linux Kernel » Version: 6.18.2

cpe:2.3:o:linux:linux_kernel:6.18.2
Linux » Linux Kernel » Version: 6.18.3

cpe:2.3:o:linux:linux_kernel:6.18.3
Linux » Linux Kernel » Version: 6.18.4

cpe:2.3:o:linux:linux_kernel:6.18.4
Linux » Linux Kernel » Version: 6.18.5

cpe:2.3:o:linux:linux_kernel:6.18.5
Linux » Linux Kernel » Version: 6.18.6

cpe:2.3:o:linux:linux_kernel:6.18.6
Linux » Linux Kernel » Version: 6.18.7

cpe:2.3:o:linux:linux_kernel:6.18.7
Linux » Linux Kernel » Version: 6.19

cpe:2.3:o:linux:linux_kernel:6.19

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Vulnerability Details CVE-2026-23122

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