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CVE-2026-43383

net/tcp-md5: Fix MAC comparison to be constant-time PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: net/tcp-md5: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to be compared in constant time. Use the appropriate helper function for this.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected cfb6eeb4c860592edd123fdea908d23c6ad1c7dc before 821c8751fdeecdeecabeb11704dd33439c9e4bbc; affected cfb6eeb4c860592edd123fdea908d23c6ad1c7dc before ff44ec94d4fc8348600a69de0a8fa1102c23bce8; affected cfb6eeb4c860592edd123fdea908d23c6ad1c7dc before 345a9530756528d7ca407663d659c3c40e75c3dd; affected cfb6eeb4c860592edd123fdea908d23c6ad1c7dc before 5d305a95130a8d08b9545e47f1e18d29d59866cb; affected cfb6eeb4c860592edd123fdea908d23c6ad1c7dc before 02669e2a4d207068edce7e8b5fafd85822018ce6; affected cfb6eeb4c860592edd123fdea908d23c6ad1c7dc before ae3831b44f477de048287493e184fc3ff913b624; affected cfb6eeb4c860592edd123fdea908d23c6ad1c7dc before b502e97e29d791ff7a8051f29a414535739be218; affected cfb6eeb4c860592edd123fdea908d23c6ad1c7dc before 46d0d6f50dab706637f4c18a470aac20a21900d3
Linux / Linuxaffected 2.6.20; unaffected 0 before 2.6.20; unaffected 5.10.253 through 5.10.*; unaffected 5.15.210 through 5.15.*; unaffected 6.1.167 through 6.1.*; unaffected 6.6.130 through 6.6.*; unaffected 6.12.78 through 6.12.*; unaffected 6.18.19 through 6.18.*; unaffected 6.19.9 through 6.19.*; unaffected 7.0 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.