gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-68427
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-10 13:20:36 UTC
Updated2026-08-18 07:16:51 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: gpu: host1x: Fix use-after-free in host1x_bo_clear_cached_mappings __host1x_bo_unpin() drops the last reference to the mapping and frees it, so we can't dereference mapping afterwards. The cache itself outlives the mapping, so use the cache local variable instead.

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: 0.001250000 probability, percentile 0.026030000 (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 71c017b3f83ff72638f2a1b1d6d4e7bc61d30231 abeff53233b984571b87582bb588b4b38ef4ea50 git Not specified
CNA Linux Linux affected 0e9dd7cfb9986b78cc81eca126ccfbf57f4c0602 5b7e5f84d3d4cea10c3764d2da274810a7934228 git Not specified
CNA Linux Linux affected 8c0d3cf0d5108c96317e0eca92b60dd368867cef 5f4de3c717d34a24d555af581947742980778c02 git Not specified
CNA Linux Linux affected df63c76f9c8d881ca7bce1aecfba512328d0527d b773faa32b0a98c3eb2b50d96de631681e5d1157 git Not specified
CNA Linux Linux affected 3cbf5e3c46e66d9b3b6b91099bb720c6cb1be3bc 266cddf7bd0f6c79b6c0633aef742a22bf70265b git Not specified
CNA Linux Linux affected af755456299d44e4ed6af3b7c70a7f03ea37fdf1 git Not specified
CNA Linux Linux affected 6.1.178 6.2 semver Not specified
CNA Linux Linux affected 6.6.145 6.6.148 semver Not specified
CNA Linux Linux affected 6.12.97 6.12.101 semver Not specified
CNA Linux Linux affected 6.18.40 6.18.42 semver Not specified
CNA Linux Linux affected 7.1.5 7.1.6 semver Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/5b7e5f84d3d4cea10c3764d2da274810a7934228 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/266cddf7bd0f6c79b6c0633aef742a22bf70265b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b773faa32b0a98c3eb2b50d96de631681e5d1157 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/5f4de3c717d34a24d555af581947742980778c02 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/abeff53233b984571b87582bb588b4b38ef4ea50 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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