CVE-2026-98191: Linux kernel · wifi: wlcore: release runtime PM ref on regdomain config failure
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 28 Oct 2026, 01:27 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
Exploitation evidence
Disclosed: evidence found.
CVE published 6 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
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.
References
- ubuntu.com/security/CVE-2026-98191 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-98191 (opens in a new tab)
- git.kernel.org/linus/8a1f3cf89ddcc700e25afe42cfad333059adcc94 (opens in a new tab)
- git.kernel.org/stable/c/05b5e297bbf46f92c80da4c2ebe67828ca0d0247 (opens in a new tab)
- git.kernel.org/stable/c/18eb148105f1af9163f5e9758f0a7bc6ab042423 (opens in a new tab)
- git.kernel.org/stable/c/3fbaae01bb7847d8b0124a8bbdb3af865e388d53 (opens in a new tab)
- git.kernel.org/stable/c/7f1f25b2db14683ab75d0d22c00d6a75ba988b83 (opens in a new tab)
- git.kernel.org/stable/c/85ec6c451fe681ac3135dfa43a519f1404ae63ad (opens in a new tab)
- git.kernel.org/stable/c/8a1f3cf89ddcc700e25afe42cfad333059adcc94 (opens in a new tab)
- git.kernel.org/stable/c/a6bb6ad517a0d4db33a0cac9448e3ae9f4008fb4 (opens in a new tab)
- git.kernel.org/stable/c/c02352e2b5a241c8da89b5f5f1a0ae4d403120ed (opens in a new tab)