CVE-2025-39922

ixgbe: fix incorrect map used in eee linkmode

State: Published
Severity: 7.1 High
Published: Oct 1, 2025
Updated: May 11, 2026
Reserved: Apr 16, 2025

Description

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

ixgbe: fix incorrect map used in eee linkmode

incorrectly used ixgbe_lp_map in loops intended to populate the supported and advertised EEE linkmode bitmaps based on ixgbe_ls_map. This results in incorrect bit setting and potential out-of-bounds access, since ixgbe_lp_map and ixgbe_ls_map have different sizes and purposes.

ixgbe_lp_map[i] -> ixgbe_ls_map[i]

Use ixgbe_ls_map for supported and advertised linkmodes, and keep ixgbe_lp_map usage only for link partner (lp_advertised) mapping.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	CISA-ADP

Weaknesses

CWE-125 Out-of-bounds Read

Affected Products

Product	Versions
LinuxLinux	9356b6db9d051e9d939dd0f9ae7a0514103ef228 to before 682105ab63826fb7ca7c112b42b478d156fbb19fAffected 9356b6db9d051e9d939dd0f9ae7a0514103ef228 to before 129c1cb8a081a02d99267cb51708f1326395f4e8Affected 9356b6db9d051e9d939dd0f9ae7a0514103ef228 to before b7e5c3e3bfa9dc8af75ff6d8633ad7070e1985e4Affected
LinuxLinux	6.9Affected before 6.9Not affected 6.12.46 through 6.12.Not affected 6.16.6 through 6.16.Not affected 6.17 and laterNot affected

References

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