{"id":"CVE-2026-80593","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80593","summary":"hwmon: (asus_atk0110) Check package count before accessing element","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (asus_atk0110) Check package count before accessing element\n\natk_ec_present() walks the management group package returned by the GGRP\nACPI method and, for each sub-package, reads its first element:\n\n\tid = &obj->package.elements[0];\n\tif (id->type != ACPI_TYPE_INTEGER)\n\nwithout checking that the sub-package is non-empty.  ACPICA allocates the\nelement array with exactly package.count entries, so for a sub-package\nwith a zero count this reads past the allocation.\n\nThe sibling function atk_debugfs_ggrp_open() performs the same access but\nskips empty packages with a package.count check first.  Add the same\ncheck to atk_ec_present() so a malformed firmware package cannot trigger\nan out-of-bounds read.","published":"2026-08-28T06:48:20.816Z","modified":"2026-08-30T03:47:58.132633831Z","cvss":{"score":8.4,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.10.261"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2a137124664aad1e36d8d74e8e2207365a04737f"},{"type":"WEB","url":"https://git.kernel.org/stable/c/459b0a0439ea65b2b612aa572eb62a2e26d05618"},{"type":"WEB","url":"https://git.kernel.org/stable/c/76392d35c8df471b288cfc6536bd092b3c8ee2cf"},{"type":"WEB","url":"https://git.kernel.org/stable/c/768f20e7bb48d723b82cb142120263d0806fbeb8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/981a8a2e3773dc7e704943388a1fb97970b23275"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b770fcfcdced569bcf7c6982aeea8c3d11a21c2b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d8d4fa0c4f818e30b6f6737bdd989b7e2b511cae"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e2735b39f044bad7bf2017aef248935525bc0b97"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80593.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80593"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-30T03:47:58.132633831Z"}}