CVE-2026-64097drm/amd/display: Validate GPIO pin LUT table size before iterating
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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 count from the VBIOS table_header.structuresize field, then iterate over gpio_pin[] entries. However, GET_IMAGE() only validates that the table header itself fits within the BIOS image. If the VBIOS reports a structuresize larger than the actual mapped data, the loop reads past the end of the BIOS image, causing an out-of-bounds read. Fix this by calling bios_get_image() to validate that the full claimed structuresize is accessible within the BIOS image before entering the loop in both functions. (cherry picked from commit ba5e95b43b773ae1bf1f66ee6b31eb774e65afe3)
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from ae79c310b1a6f97429a5784b65f125d9cc9c95b1 before 9900f6954be779011e7c2cd42addd87baf028bc5; from ae79c310b1a6f97429a5784b65f125d9cc9c95b1 before fb30a3890d62fd50a95aef684faf64a307592e42; from ae79c310b1a6f97429a5784b65f125d9cc9c95b1 before 67461e0c15335894cc5d3b84cda823bf8cbdc886; from ae79c310b1a6f97429a5784b65f125d9cc9c95b1 before 7ca695b3122297b06a3ed605bbe1cd32c85d9f5a; from ae79c310b1a6f97429a5784b65f125d9cc9c95b1 before f2a4827e980ba07de4391fa84d9c39a12726bdd7; from ae79c310b1a6f97429a5784b65f125d9cc9c95b1 before 86d2b20644b11d21fe52c596e6e922b4590a3e3f | CNA record |
linux linux_kernel linux:linux_kernel | from 4.15 before 6.1.175; from 6.2 before 6.6.142; from 6.7 before 6.12.92; from 6.13 before 6.18.34; from 6.19 before 7.0.11; 7.1; 7.1; 7.1; and 1 more ranges | NVD |
References
- https://git.kernel.org/stable/c/9900f6954be779011e7c2cd42addd87baf028bc5patch
- https://git.kernel.org/stable/c/fb30a3890d62fd50a95aef684faf64a307592e42patch
- https://git.kernel.org/stable/c/67461e0c15335894cc5d3b84cda823bf8cbdc886patch
- https://git.kernel.org/stable/c/7ca695b3122297b06a3ed605bbe1cd32c85d9f5apatch
- https://git.kernel.org/stable/c/f2a4827e980ba07de4391fa84d9c39a12726bdd7patch
- https://git.kernel.org/stable/c/86d2b20644b11d21fe52c596e6e922b4590a3e3fpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.