Critical severity9.4NVD Advisory· Published May 8, 2026· Updated May 26, 2026
CVE-2026-43383
CVE-2026-43383
Description
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
3Patches
Vulnerability mechanics
References
7- git.kernel.org/stable/c/02669e2a4d207068edce7e8b5fafd85822018ce6nvdPatch
- git.kernel.org/stable/c/345a9530756528d7ca407663d659c3c40e75c3ddnvdPatch
- git.kernel.org/stable/c/46d0d6f50dab706637f4c18a470aac20a21900d3nvdPatch
- git.kernel.org/stable/c/5d305a95130a8d08b9545e47f1e18d29d59866cbnvdPatch
- git.kernel.org/stable/c/821c8751fdeecdeecabeb11704dd33439c9e4bbcnvdPatch
- git.kernel.org/stable/c/ae3831b44f477de048287493e184fc3ff913b624nvdPatch
- git.kernel.org/stable/c/b502e97e29d791ff7a8051f29a414535739be218nvdPatch
News mentions
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