CVE-2026-89980
8.4 HIGHPublished 2026-09-16 · Updated 2026-09-16
AI risk analysis
- Summary
- The vulnerability in the Linux kernel's ALSA subsystem allows an attacker to exploit uninitialized locks, potentially leading to a system crash or privilege escalation.
- Exploitability
- Exploitation requires kernel-level access and a pending interrupt, making it moderately difficult to exploit.
- Blast radius
- If exploited, the impact could be severe, including system instability or unauthorized access.
- Detection
- No reliable host or network indicator is derivable from the published description.
- Prioritized remediation
- Upgrade to the fixed version 5.19.1 or later.
kernellockuninitializedprivilege-escalation
Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.
NVD description
In the Linux kernel, the following vulnerability has been resolved: ALSA: harmony: initialize locks before requesting IRQ snd_harmony_create() registers the IRQ before initializing h->lock and h->mixer_lock. A pending interrupt can invoke the handler while these locks are uninitialized. Initialize both locks before requesting the IRQ so the handler always sees valid lock state.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://git.kernel.org/stable/c/33abb7491e89285a41565670945293dda841afc4
- https://git.kernel.org/stable/c/7dc239edb6d58e01c9ec868565cc03e7adf91747
- https://git.kernel.org/stable/c/89992bda7dfbba7ded2ba4185730453c57fa65bc
- https://git.kernel.org/stable/c/9347588bbd6ad43a85e17046d9c117a41453c52a
- https://git.kernel.org/stable/c/9af6c9203583655cb7ed45e52e14101652b37547
- https://git.kernel.org/stable/c/cd209eb3136e002becbda232e399fa31a2276436
- https://git.kernel.org/stable/c/f86ff9238b0c8284909e073a681a60708b9f36ab
Data: NVD (public domain). Analysis: local $0 model. Defensive use only.