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

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Summary

CVECVE-2026-46204
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 10:16:36 UTC
Updated2026-05-30 11:17:26 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.1 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS: 0.000210000 probability, percentile 0.061540000 (date 2026-05-29)

VersionSourceTypeScoreSeverityVector
3.1416baaa9-dc9f-4396-8d5f-8c081fb06d67Secondary7.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
3.1CNADECLARED7.1HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0b15205c7325dc20b7da0068307670d222d66949 1dc005775fb5b3f86464406452b17364f85581d3 git Not specified
CNA Linux Linux affected 0b15205c7325dc20b7da0068307670d222d66949 d0802a8877d730260d4af4dd4e0b6cde7e0e593f git Not specified
CNA Linux Linux affected 0b15205c7325dc20b7da0068307670d222d66949 a6d5563ba1f03a049561cd347574613167294e8d git Not specified
CNA Linux Linux affected 0b15205c7325dc20b7da0068307670d222d66949 5c3e8ebad0c9e2354ddfa8f2148dc4f70a3b4bd1 git Not specified
CNA Linux Linux affected 0b15205c7325dc20b7da0068307670d222d66949 2444eb0ec8283f4a3845eb7febad378476e1ba3c git Not specified
CNA Linux Linux affected 6.0 Not specified
CNA Linux Linux unaffected 6.0 semver Not specified
CNA Linux Linux unaffected 6.6.140 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.90 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.32 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.9 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/5c3e8ebad0c9e2354ddfa8f2148dc4f70a3b4bd1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/2444eb0ec8283f4a3845eb7febad378476e1ba3c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/d0802a8877d730260d4af4dd4e0b6cde7e0e593f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/1dc005775fb5b3f86464406452b17364f85581d3 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a6d5563ba1f03a049561cd347574613167294e8d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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