{"id":"CVE-2026-64097","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-64097","generatedAt":"2026-10-28T01:42:07.892Z","title":"In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Validate GPIO pin LUT table size before iterating [Why&How] The GPIO pin table parsers in get_gpio_i2c_info() and bios_parser_get_gpio_pin_info() derive an element…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Validate GPIO pin LUT table size before iterating\n\n[Why&How]\nThe GPIO pin table parsers in get_gpio_i2c_info() and\nbios_parser_get_gpio_pin_info() derive an element count from the VBIOS\ntable_header.structuresize field, then iterate over gpio_pin[] entries.\nHowever, GET_IMAGE() only validates that the table header itself fits\nwithin the BIOS image. If the VBIOS reports a structuresize larger than\nthe actual mapped data, the loop reads past the end of the BIOS image,\ncausing an out-of-bounds read.\n\nFix this by calling bios_get_image() to validate that the full claimed\nstructuresize is accessible within the BIOS image before entering the\nloop in both functions.\n\n(cherry picked from commit ba5e95b43b773ae1bf1f66ee6b31eb774e65afe3)","published":"2026-07-19T16:17:51.000Z","lastModified":"2026-10-19T21:17:23.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787","CWE-125"],"affected":["linux/linux kernel"],"epss":{"score":0.0013,"percentile":0.02584,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.13%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/67461e0c15335894cc5d3b84cda823bf8cbdc886","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7ca695b3122297b06a3ed605bbe1cd32c85d9f5a","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/86d2b20644b11d21fe52c596e6e922b4590a3e3f","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9900f6954be779011e7c2cd42addd87baf028bc5","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f2a4827e980ba07de4391fa84d9c39a12726bdd7","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fb30a3890d62fd50a95aef684faf64a307592e42","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-64097","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}