CVE-2026-23111

CVE-2026-23111 (Linux kernel) : A bug in netfilter nf_tables nft_map_catchall_activate() inverted the genmask check, causing catchall elements to be processed incorrectly during abort of a DELSET operation. The function skipped inactive elements and processed active ones, leading to a use-after-f...

CVE-2025-21705

CVE-2025-21705 affects the Linux kernel MPTCP implementation (mptcp: handle fastopen disconnect correctly). Root cause: internal disconnect() during FASTOPEN errors was not properly accounted, risking data stream corruption. Fix: increase the socket disconnect counter so other threads waiting on ...

CVE-2023-4515

CVE-2023-4515: Linux kernel ksmbd had command payload size checks missing for most commands (except SMB2_OPLOCK_BREAK_HE). An attacker with local access could exploit this to trigger issues due to unchecked request sizes. A fix was committed to validate command payload sizes; the SUSE advisories ...

CVE-2026-23278

CVE-2026-23278 (Linux kernel nf_tables catchall handling) The issue occurs in netfilter nf_tables where, during transaction processing, a map holding catchall elements being removed may require toggling all pending catchall elements, not just the first viable candidate. If the map is also being f...

CVE-2026-23428

CVE-2026-23428 affects the Linux kernel ksmbd component handling SMB2. The root cause is a use-after-free when reusing work->tcon in compound SMB2 requests: after a prior command (e.g., SMB2_TREE_DISCONNECT) sets t_state to TREE_DISCONNECTED and ksmbd_share_config_put() frees share_conf, subse...