CVE-2026-63979

Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

F5 F5OS, Dell NetWorker, Debian Linux, Amazon Linux 2, Red Hat Enterprise Linux, IBM QRadar SIEM, Dell Avamar, RESF…

In the Linux kernel, the following vulnerability has been resolved: net/handshake: hand off the pinned file reference to accept_doit handshake_req_next() removes the request from the per-net pending list and drops hn_lock before handshake_nl_accept_doit() reads req->hr_sk->sk_socket and dereferences sock->file (once in FD_PREPARE() and again in get_file()). In that window a consumer running tls_handshake_cancel() followed by sockfd_put() (svc_sock_free) or __fput_sync()…

19. Jul 2026

Ausgewertete Quellen

• Debian
  DSA-6602-1 linux - security update
• CERT-Bund
  WID-SEC-2026-2403
• NVD
  CVE-2026-63979