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CVE-2026-46204

drm/amdgpu/vcn4: Prevent OOB reads when parsing IB

HIGH
7.1
CVSS Score
Published: May 28, 2026 at 09:40 AM UTC
Updated: October 30, 2026 at 01:18 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.1
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn4: Prevent OOB reads when parsing IB Rewrite the IB parsing to use amdgpu_ib_get_value() which handles the bounds checks.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.0 ≤ v < 6.6.1406.13 ≤ v < 6.18.326.19 ≤ v < 7.0.96.7 ≤ v < 6.12.900b15205c7325dc20b7da0068307670d222d669496.0
Vendor states this is fixed in 1dc005775fb5b3f86464406452b17364f85581d3 (fixed)
Vendor states this is fixed in 2444eb0ec8283f4a3845eb7febad378476e1ba3c (fixed)
Vendor states this is fixed in 5c3e8ebad0c9e2354ddfa8f2148dc4f70a3b4bd1 (fixed)
Vendor states this is fixed in a6d5563ba1f03a049561cd347574613167294e8d (fixed)
Vendor states this is fixed in d0802a8877d730260d4af4dd4e0b6cde7e0e593f (fixed)
Vendor states this is fixed in 6.0 (unaffected)
Vendor states this is fixed in 6.12.90 (unaffected)
Vendor states this is fixed in 6.18.32 (unaffected)
Vendor states this is fixed in 6.6.140 (unaffected)
Vendor states this is fixed in 7.0.9 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

References (6)

Patch
Source: cverecord
https://git.kernel.org/stable/c/1dc005775fb5b3f86464406452b17364f85581d3
Patch
Source: cverecord
https://git.kernel.org/stable/c/d0802a8877d730260d4af4dd4e0b6cde7e0e593f
Patch
Source: cverecord
https://git.kernel.org/stable/c/a6d5563ba1f03a049561cd347574613167294e8d
Patch
Source: cverecord
https://git.kernel.org/stable/c/5c3e8ebad0c9e2354ddfa8f2148dc4f70a3b4bd1
Patch
Source: cverecord
https://git.kernel.org/stable/c/2444eb0ec8283f4a3845eb7febad378476e1ba3c
Source: cverecord
https://git.kernel.org/stable/c/92724364702fd12d99f441a4af11d9c8bcd52217

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.1HIGHLinux
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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