Improper resource shutdown or release in Linux kernel - CVE-2026-90007
Published: September 16, 2026
Vulnerability identifier: #VU150276
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-90007
CWE-ID: CWE-404
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to leave previously registered interrupt handlers installed.
The vulnerability exists due to incorrect rollback index handling in the pm8001_request_msix() function when handling a request_irq() failure during MSI-X vector registration. A local user can trigger the faulty rollback loop to leave previously registered interrupt handlers installed.
Affected software
Linux kernel
How to mitigate CVE-2026-90007
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/0205db768570f9a46b20912afa581a0c7a63d8b7
- https://git.kernel.org/stable/c/2853ce9c88e0e6dd575f95f28b3a8c2b27164115
- https://git.kernel.org/stable/c/3f92a64545165bdbb36dee8fa35626b295463313
- https://git.kernel.org/stable/c/a980dec7c69990e4f119bcf6a2ea093d1c4975e8
- https://git.kernel.org/stable/c/dd817463c9b42a3a9e23d15b86c6c77a6cfb809d
- https://git.kernel.org/stable/c/e20b16aa3b49f9db5510940740255a987e6f2a6f
- https://git.kernel.org/stable/c/f39e3ca1f688d7c08954a0794e9bf1e279c83b15
- https://git.kernel.org/stable/c/fb22a8d2f3ac6665cc8bee197096b6675cac1a9f