Improper resource shutdown or release in Linux kernel - CVE-2026-89883
Published: September 17, 2026
Vulnerability identifier: #VU150406
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-2026-89883
CWE-ID: CWE-404
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to compromise confidentiality, integrity, and availability.
The vulnerability exists due to improper resource cleanup in the sunxi-cir driver when probe initialization fails after rc device registration. A local user can trigger a probe failure to compromise confidentiality, integrity, and availability.
Affected software
Linux kernel
How to mitigate CVE-2026-89883
Install security update from vendor's repository.
External References
- https://git.kernel.org/stable/c/4655a591478e4b31a3396695a2457daad9d4c899
- https://git.kernel.org/stable/c/479aa6fa8c50f1052f1451326ef7d4d586d340c3
- https://git.kernel.org/stable/c/4efd7146dcf959afe64e9c51531cd8f82e60eab6
- https://git.kernel.org/stable/c/59951b8a87ef4fb4b5b9409f70ba07663681a040
- https://git.kernel.org/stable/c/5b58d8c206f37525c8217171e1f3e91dd2fa55e5
- https://git.kernel.org/stable/c/5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e
- https://git.kernel.org/stable/c/826763adbd8bd3137c5b3756650da473dc6216d5