{"id":"CVE-2026-90341","summary":"firmware: coreboot: Validate table bounds","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: coreboot: Validate table bounds\n\nThe existing coreboot_table_populate() bounds checks limit individual\nentries to the mapped length.  However, coreboot_table_probe() replaces\nthe platform resource length with header and table sizes supplied by\nfirmware before mapping the full table.\n\nA malformed table can overflow the 32-bit size addition or advertise an\nextent beyond the resource, causing the driver to map and parse memory\noutside the resource.  A resource shorter than the fixed header is also\nmapped as though it contained a complete header.\n\nReject resources shorter than the fixed header.  After validating the\nsignature, require a complete header, calculate the advertised extent\nwith overflow checking, and reject extents beyond the resource before\nremapping the table.","modified":"2026-09-18T03:48:37.790021031Z","published":"2026-09-17T16:08:52.307Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90341.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2d98a3b89394f283f054a4a54587c14ee89acaf9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3cca0d6dd4c2636d2514234233cb02db76621607"},{"type":"WEB","url":"https://git.kernel.org/stable/c/88027241c1d2c3213bac937a1c2cb89a5775a413"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a58a57a1076f8c5dae0327e3710899478c3be901"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d848fac90c6f0566e7b93066b0b86024f65f395e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e82f260a74dea8cdd7857f2cc66f73d0da522bb3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f79f621215a0944c4a0e1b3b86b99e433ae8c527"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fd93859ecfa5b6495a6863c18fd923a7666def26"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90341.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90341"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d384d6f43d1ec3f1225ab0275fd592c5980bd830"},{"fixed":"3cca0d6dd4c2636d2514234233cb02db76621607"},{"fixed":"f79f621215a0944c4a0e1b3b86b99e433ae8c527"},{"fixed":"d848fac90c6f0566e7b93066b0b86024f65f395e"},{"fixed":"88027241c1d2c3213bac937a1c2cb89a5775a413"},{"fixed":"fd93859ecfa5b6495a6863c18fd923a7666def26"},{"fixed":"2d98a3b89394f283f054a4a54587c14ee89acaf9"},{"fixed":"e82f260a74dea8cdd7857f2cc66f73d0da522bb3"},{"fixed":"a58a57a1076f8c5dae0327e3710899478c3be901"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90341.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.12.0"},{"fixed":"5.10.270"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.221"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.188"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.157"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.110"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.52"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90341.json"}}],"schema_version":"1.9.0"}