drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg

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Summary

CVECVE-2026-46199
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-28 10:16:35 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 dec msg Check bounds against the end of the BO whenever we access the msg.

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 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 c72a8b4dc6d598e3831ef3abd9c6527dfbf4810e git Not specified
CNA Linux Linux affected 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 7688143ca62edeecacb3ba0a2cea129dbd262a18 git Not specified
CNA Linux Linux affected 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 63b51e8a9d54317d31cc3856c1e12407070d5fc2 git Not specified
CNA Linux Linux affected 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 3c817a60b09eaab926e475088e750936efcc95ae git Not specified
CNA Linux Linux affected 87cc7f9ebf7ce10f82250002d667ef3e93a79d44 0a78f2bac1424deb7c9d5e09c6b8e849d8e8b648 git Not specified
CNA Linux Linux affected 5.13 Not specified
CNA Linux Linux unaffected 5.13 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/3c817a60b09eaab926e475088e750936efcc95ae 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/0a78f2bac1424deb7c9d5e09c6b8e849d8e8b648 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c72a8b4dc6d598e3831ef3abd9c6527dfbf4810e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7688143ca62edeecacb3ba0a2cea129dbd262a18 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/63b51e8a9d54317d31cc3856c1e12407070d5fc2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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