CVE-2026-80849

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: fix use-after-free of currentkey on reconnect to another peer tcpinboundaohash is called before bhlocksocknested is taken, with only rcureadlock held. On the fast path for established sockets, if the rnextkeyid sent b...

SUSE CVE-2026-43384

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: 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...

Linux Distros Unpatched Vulnerability : CVE-2026-43384

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: Fix MAC comparison to be constant-time To prevent timing attacks, MACs need to b...

UBUNTU-CVE-2026-43384

In the Linux kernel, the following vulnerability has been resolved: net/tcp-ao: 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...

CVE-2026-43384

The CVE-2026-43384 issue concerns the Linux kernel TCP Authentication Option (TCP-AO) where MACs were compared without constant-time handling. The connected documents confirm a fix was applied to make MAC comparisons constant-time, mitigating timing-attack leakage of sensitive information. The vu...