Bug 2540475 (CVE-2026-97493) - CVE-2026-97493 kernel: drm/amdgpu: Bound GPIO I2C table entry count from VBIOS
Summary: CVE-2026-97493 kernel: drm/amdgpu: Bound GPIO I2C table entry count from VBIOS
Keywords:
Status: NEW
Alias: CVE-2026-97493
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-24 16:58 UTC by OSIDB Bzimport
Modified: 2026-09-30 07:30 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-24 16:58:15 UTC 
In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: Bound GPIO I2C table entry count from VBIOS

Reject undersized tables and cap the derived entry count
to AMDGPU_MAX_I2C_BUS so we do not overrun adev->i2c_bus[]
or walk an absurd number of entries on corrupt size fields.
Comment 1 Mauro Matteo Cascella 2026-09-29 20:56:56 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97493.mbox
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