CVE-2026-90054

CVE-2026-90054 affects the Linux kernel TCP retransmit path. The root cause is a missing urgent-mode guard in __tcp_retransmit_skb(): unlike the normal transmit path, it builds multi-segment GSO packets while in urgent mode. Because urg_ptr is an offset from each segment's own sequence number but...

EUVD-2026-81915

In the Linux kernel, the following vulnerability has been resolved: tcp: fix corruption of urgent data on multi-segment retransmit On the normal xmit path, while in urgent mode we refuse to build a multi-segment TSO packet, so every segment gets its own urgptr: / tcpwritexmit / limit = mssnow; if...