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Review reviewHigh

CVE-2026-64097

Linux

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...

CVSS
7.8
EPSS
-
- percentile
CISA KEV
Not listed
Published
2026.07.20
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability-
Technical severityCVSS 7.8

Vulnerability overview

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...

Affected product and versions

Product
Linux
Affected versions
>= ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < 9900f6954be779011e7c2cd42addd87baf028bc5, >= ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < fb30a3890d62fd50a95aef684faf64a307592e42, >= ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < 67461e0c15335894cc5d3b84cda823bf8cbdc886, >= ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < 7ca695b3122297b06a3ed605bbe1cd32c85d9f5a, >= ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < f2a4827e980ba07de4391fa84d9c39a12726bdd7, >= ae79c310b1a6f97429a5784b65f125d9cc9c95b1 < 86d2b20644b11d21fe52c596e6e922b4590a3e3f, >= 4.15
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
Not available
CVE-2026-64097 — Linux | SECUFOCUS NOW