{"id":"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-\u003epackage.elements[0];\n\tif (id-\u003etype != 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.","modified":"2026-08-30T03:47:58.132633831Z","published":"2026-08-28T06:48:20.816Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80593.json"},"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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"9e6eba610c2eb68b05841a15ece1cf929c44aea3"},{"fixed":"2a137124664aad1e36d8d74e8e2207365a04737f"},{"fixed":"459b0a0439ea65b2b612aa572eb62a2e26d05618"},{"fixed":"768f20e7bb48d723b82cb142120263d0806fbeb8"},{"fixed":"76392d35c8df471b288cfc6536bd092b3c8ee2cf"},{"fixed":"981a8a2e3773dc7e704943388a1fb97970b23275"},{"fixed":"d8d4fa0c4f818e30b6f6737bdd989b7e2b511cae"},{"fixed":"b770fcfcdced569bcf7c6982aeea8c3d11a21c2b"},{"fixed":"e2735b39f044bad7bf2017aef248935525bc0b97"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80593.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.6.32"},{"fixed":"5.10.261"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.212"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.145"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.97"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.40"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80593.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}