drm/panthor: validate firmware interface structure sizes

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74451
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 13:17:49 UTC
Updated2026-08-17 06:19:40 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: drm/panthor: validate firmware interface structure sizes iface_fw_to_cpu_addr() only checks that the firmware-provided MCU virtual address points inside the shared section. The returned pointer is later used as a full firmware interface structure, so accepting an address near the end of the shared section can still lead to out-of-bounds accesses. Pass the expected object size to iface_fw_to_cpu_addr() and reject ranges that do not fit entirely in the shared section.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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

EPSS: 0.001290000 probability, percentile 0.029400000 (date 2026-08-17)

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

CVSS v3.1 Breakdown

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

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 2718d91816eeed03c09c8abe872e45f59078768c 21c77486f5a60bb9c0433c21de62a5f25d5091f1 git Not specified
CNA Linux Linux affected 2718d91816eeed03c09c8abe872e45f59078768c c835f2b0b7167584832b516c9b0a26e9180d1d0b git Not specified
CNA Linux Linux affected 2718d91816eeed03c09c8abe872e45f59078768c ca41d9f3a21586bf29df53eec05152ecf2b2f94f git Not specified
CNA Linux Linux affected 2718d91816eeed03c09c8abe872e45f59078768c b921b8613790a3f9e78ab64017fa7149ef0b750c git Not specified
CNA Linux Linux affected 6.10 Not specified
CNA Linux Linux unaffected 6.10 semver Not specified
CNA Linux Linux unaffected 6.12.103 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.44 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.8 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b921b8613790a3f9e78ab64017fa7149ef0b750c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/ca41d9f3a21586bf29df53eec05152ecf2b2f94f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/21c77486f5a60bb9c0433c21de62a5f25d5091f1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c835f2b0b7167584832b516c9b0a26e9180d1d0b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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