CVE-2026-80593
In the Linux kernel, the following vulnerability has been resolved: hwmon: (asus_atk0110) Check package count before accessing element atk_ec_present() walks the management group package returned by the GGRP ACPI method and, for each sub-package, reads…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.14%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: hwmon: (asus_atk0110) Check package count before accessing element atk_ec_present() walks the management group package returned by the GGRP ACPI method and, for each sub-package, reads its first element: id = &obj->package.elements[0]; if (id->type != ACPI_TYPE_INTEGER) without checking that the sub-package is non-empty. ACPICA allocates the element array with exactly package.count entries, so for a sub-package with a zero count this reads past the allocation. The sibling function atk_debugfs_ggrp_open() performs the same access but skips empty packages with a package.count check first. Add the same check to atk_ec_present() so a malformed firmware package cannot trigger an out-of-bounds read.
- CVSS 3.1
- 8.4 HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.14% probability · 4th percentile
- CISA KEV
- Not listed
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.