CVE-2026-23247

CVE-2026-23247 is a Linux kernel TCP/TCP options issue that reintroduces port inclusion in the TS offset to mitigate an off-path TCP source port leakage via a SYN-cookie side-channel. The vulnerability is resolved by reverting a previous downgrade of timestamp offsets and performing a single siph...

CVE-2026-53223

CVE-2026-53223 (Linux kernel) : A networking timestamping bug in net: guard timestamp cmsgs to real error queue skbs where skb_is_err_queue() incorrectly treated PACKET_OUTGOING as the sole marker for sk_error_queue. This misclassification affects AF_PACKET sockets, allowing timestamp-related con...