drm/amdgpu: Bound GPIO I2C table entry count from VBIOS
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
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- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 7 fixed, 2 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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.
Why it matters now
EPSS 0.00174 6th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.1.191, 6.6.160, 6.12.114 +2Red Hat: 1 advisoryRed Hat: 7 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 6.1.191, 6.6.160, 6.12.114, 6.18.53, 7.2
Red Hat 1 advisory
- RHSA-2026:88477 Released 2026-10-23 · Red Hat rating Importantkernel security, bug fix, and enhancement update
- 10Base-SMTV kernel-modules-internal-6.12.0-211.68.1.el10_2
- Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-211.68.1.el10_2, kernel-64k-debug-devel-matched-6.12.0-211.68.1.el10_2, kernel-64k-devel-6.12.0-211.68.1.el10_2 +12
- Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-211.68.1.el10_2, kernel-64k-6.12.0-211.68.1.el10_2, kernel-64k-core-6.12.0-211.68.1.el10_2 +29
- Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-211.68.1.el10_2, libperf-6.12.0-211.68.1.el10_2
- Red Hat Enterprise Linux Hidden (v. 10) kernel-modules-internal-6.12.0-211.68.1.el10_2
- Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-211.68.1.el10_2, kernel-rt-64k-6.12.0-211.68.1.el10_2, kernel-rt-64k-core-6.12.0-211.68.1.el10_2 +21
- Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-211.68.1.el10_2, kernel-rt-core-6.12.0-211.68.1.el10_2, kernel-rt-debug-6.12.0-211.68.1.el10_2 +9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | Affected | No fix yet |
| Red Hat Enterprise Linux 9 | Affected | No fix yet |
| 10Base-SMTV | Fixed | RHSA-2026:88477 |
| Red Hat Enterprise Linux AppStream (v. 10) | Fixed | RHSA-2026:88477 |
| Red Hat Enterprise Linux BaseOS (v. 10) | Fixed | RHSA-2026:88477 |
| Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) | Fixed | RHSA-2026:88477 |
| Red Hat Enterprise Linux Hidden (v. 10) | Fixed | RHSA-2026:88477 |
| Red Hat Enterprise Linux Real Time (v. 10) | Fixed | RHSA-2026:88477 |
| Red Hat Enterprise Linux Real Time for NFV (v. 10) | Fixed | RHSA-2026:88477 |
Not affected: 2 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Timeline
- 2026-10-02 Threatist record created from CVE-2026-97493
- 2026-10-03 Alias added: GHSA-52cj-p9jc-4mfv
- 2026-10-09 Affected versions changed · Red Hat
- 2026-10-09 CVSS score changed · Red Hat
- 2026-10-21 Fix available: Linux/Linux@0786b38af822fcd153d565cc85be7dbd9fed4d25, Linux/[email protected], Linux/[email protected] +1 · CNA
- 2026-10-21 2 new references · CNA
- 2026-10-23 Fix available: RHSA-2026:88477 · Red Hat
- 2026-10-23 Fix available: 10Base-SMTV, Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10) +4 · Red Hat
- 2026-10-30 Fix available: Linux/[email protected], Linux/Linux@b12abff6a52d96c4114d7668f790b18f9201c17c · CNA
- 2026-10-30 1 new reference · CNA
References
Other 5
- https://git.kernel.org/stable/c/b12abff6a52d96c4114d7668f790b18f9201c17c
- https://git.kernel.org/stable/c/0786b38af822fcd153d565cc85be7dbd9fed4d25
- https://git.kernel.org/stable/c/6db45123306c7167c6867ca3d24924bd7960d947
- https://git.kernel.org/stable/c/f8f0985375c3b977757fd73e2b691ff1bf1ea7b9
- https://git.kernel.org/stable/c/a99cd231cd924b7160fecb9fb3a94b801522323b
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Sources
- CVE-2026-97493 · CVE Program
- CVE-2026-97493 · NVD
- FIRST EPSS
- GHSA-52cj-p9jc-4mfv · GitHub Advisory Database · CC BY 4.0
- CVE-2026-97493 · Red Hat security data · CC BY 4.0
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