Use of uninitialized resource in Linux kernel - CVE-2026-97909
Published: September 28, 2026
Vulnerability identifier: #VU152577
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97909
CWE-ID: CWE-908
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to trigger use of an uninitialized IRQ lock.
The vulnerability exists due to improper initialization in the ASoC STI UniPerif reader initialization routine when a pending shared interrupt is handled before the IRQ lock is initialized. A local user can cause the shared interrupt handler to run during initialization to trigger use of an uninitialized IRQ lock.
Affected software
Linux kernel
How to mitigate CVE-2026-97909
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3