Out-of-bounds read in Linux kernel - CVE-2026-80593
Published: August 28, 2026
Vulnerability identifier: #VU146298
CSH Severity: Low
CVSS v4: 4.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-80593
CWE-ID: CWE-125
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local attacker to disclose sensitive information.
The vulnerability exists due to an out-of-bounds read in the atk_ec_present() function in the asus_atk0110 hwmon driver when processing a malformed firmware package returned by the GGRP ACPI method. A local attacker can provide a zero-length sub-package to trigger the out-of-bounds read and disclose sensitive information.
Affected software
Linux kernel
How to mitigate CVE-2026-80593
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3
External References
- https://git.kernel.org/stable/c/2a137124664aad1e36d8d74e8e2207365a04737f
- https://git.kernel.org/stable/c/459b0a0439ea65b2b612aa572eb62a2e26d05618
- https://git.kernel.org/stable/c/76392d35c8df471b288cfc6536bd092b3c8ee2cf
- https://git.kernel.org/stable/c/768f20e7bb48d723b82cb142120263d0806fbeb8
- https://git.kernel.org/stable/c/981a8a2e3773dc7e704943388a1fb97970b23275
- https://git.kernel.org/stable/c/b770fcfcdced569bcf7c6982aeea8c3d11a21c2b
- https://git.kernel.org/stable/c/d8d4fa0c4f818e30b6f6737bdd989b7e2b511cae
- https://git.kernel.org/stable/c/e2735b39f044bad7bf2017aef248935525bc0b97