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CVE-2026-80593

hwmon: (asus_atk0110) Check package count before accessing element PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 9e6eba610c2eb68b05841a15ece1cf929c44aea3 before 2a137124664aad1e36d8d74e8e2207365a04737f; affected 9e6eba610c2eb68b05841a15ece1cf929c44aea3 before 459b0a0439ea65b2b612aa572eb62a2e26d05618; affected 9e6eba610c2eb68b05841a15ece1cf929c44aea3 before 768f20e7bb48d723b82cb142120263d0806fbeb8; affected 9e6eba610c2eb68b05841a15ece1cf929c44aea3 before 76392d35c8df471b288cfc6536bd092b3c8ee2cf; affected 9e6eba610c2eb68b05841a15ece1cf929c44aea3 before 981a8a2e3773dc7e704943388a1fb97970b23275; affected 9e6eba610c2eb68b05841a15ece1cf929c44aea3 before d8d4fa0c4f818e30b6f6737bdd989b7e2b511cae; affected 9e6eba610c2eb68b05841a15ece1cf929c44aea3 before b770fcfcdced569bcf7c6982aeea8c3d11a21c2b; affected 9e6eba610c2eb68b05841a15ece1cf929c44aea3 before e2735b39f044bad7bf2017aef248935525bc0b97
Linux / Linuxaffected 2.6.32; unaffected 0 before 2.6.32; unaffected 5.10.261 through 5.10.*; unaffected 5.15.212 through 5.15.*; unaffected 6.1.178 through 6.1.*; unaffected 6.6.145 through 6.6.*; unaffected 6.12.97 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.