CVE-2026-43383

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.

critical 9.4 CVSS 3.1
Published: May 8, 2026
Modified: May 26, 2026
Vendor: Linux
Product: Linux Kernel
Versions: 7.0

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.

References

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