Vulnerability in Linux

[ Description ]Official description

In the Linux kernel, the following vulnerability has been resolved: wifi: wlcore: release runtime PM ref on regdomain config failure wlcore_regdomain_config() gets a runtime PM reference before sending the regulatory-domain command. When wlcore_cmd_regdomain_config_locked() fails, the function queues recovery and returns without dropping that reference. Release the reference after handling the command result so both success and failure paths balance the preceding pm_runtime_resume_and_get(). The recovery worker takes a separate runtime PM reference and cannot release the reference held here.

[ 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/05b5e297bbf46f92c80da4c2ebe67828ca0d0247
• git.kernel.org/stable/c/18eb148105f1af9163f5e9758f0a7bc6ab042423
• git.kernel.org/stable/c/3fbaae01bb7847d8b0124a8bbdb3af865e388d53
• git.kernel.org/stable/c/7f1f25b2db14683ab75d0d22c00d6a75ba988b83
• git.kernel.org/stable/c/85ec6c451fe681ac3135dfa43a519f1404ae63ad
• git.kernel.org/stable/c/8a1f3cf89ddcc700e25afe42cfad333059adcc94
• git.kernel.org/stable/c/a6bb6ad517a0d4db33a0cac9448e3ae9f4008fb4
• git.kernel.org/stable/c/c02352e2b5a241c8da89b5f5f1a0ae4d403120ed