Vulnerability in Linux

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Fix parent socket leak in iso_conn_ready() iso_get_sock() returns the parent socket with a reference held, which is dropped by sock_put() once the child socket has been set up. The error path taken when iso_sock_alloc() fails only calls release_sock() and returns, leaking the reference and thus the parent socket itself. Drop the reference on that path as well.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

• BSI CERT-Bund5 Oct 2026WID-SEC-2026-3743

  Linux Kernel: Multiple vulnerabilities Translated from German

  Risk mediumCVE-2026-98221CVE-2026-98181CVE-2026-98248+204 more CVEs

[ References ]References

• git.kernel.org/stable/c/9228f87365e68a6cae191f57f456e89a6d2167cf
• git.kernel.org/stable/c/ca18ee413a7cb6f09885778039225e58bae0d607
• git.kernel.org/stable/c/e2b156a8d25966be49c1f809b654a2c4bb16564d
• git.kernel.org/stable/c/ea8a262662be62c095789924c11722ecbf40a4de
• git.kernel.org/stable/c/f016daabd4fec4e9b8563f8b6f42eabce0ca66b0