powerpc/64s: Fix VAS mm use after free

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2023-54042
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-24 11:15:57 UTC
Updated2026-10-15 22:17:51 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: powerpc/64s: Fix VAS mm use after free The refcount on mm is dropped before the coprocessor is detached.

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: 0.001400000 probability, percentile 0.029800000 (date 2026-10-15)

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 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 f7d92313002b2d543500cc417d8079aaed1fb0a8 git Not specified
CNA Linux Linux affected 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 4e82f92c349ea603736ade1e814861c0182a55ad git Not specified
CNA Linux Linux affected 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 db8657fdd53c5e3069149d7f957cb60e63027bb2 git Not specified
CNA Linux Linux affected 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 421cd1544480f2458042fe7f4913a2069c4d7251 git Not specified
CNA Linux Linux affected 7bc6f71bdff5f8921e324da0a8fad6f4e2e63a85 b4bda59b47879cce38a6ec5a01cd3cac702b5331 git Not specified
CNA Linux Linux affected 5.14 Not specified
CNA Linux Linux unaffected 5.14 semver Not specified
CNA Linux Linux unaffected 5.15.121 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.39 6.1.* semver Not specified
CNA Linux Linux unaffected 6.3.13 6.3.* semver Not specified
CNA Linux Linux unaffected 6.4.4 6.4.* semver Not specified
CNA Linux Linux unaffected 6.5 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/4e82f92c349ea603736ade1e814861c0182a55ad 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/421cd1544480f2458042fe7f4913a2069c4d7251 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f7d92313002b2d543500cc417d8079aaed1fb0a8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/db8657fdd53c5e3069149d7f957cb60e63027bb2 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/b4bda59b47879cce38a6ec5a01cd3cac702b5331 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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