maple_tree: fix potential out-of-bounds access in mas_wr_end_piv()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2023-54135
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-12-24 13:16:15 UTC
Updated2026-08-04 10:19:30 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: maple_tree: fix potential out-of-bounds access in mas_wr_end_piv() Check the write offset end bounds before using it as the offset into the pivot array. This avoids a possible out-of-bounds access on the pivot array if the write extends to the last slot in the node, in which case the node maximum should be used as the end pivot. akpm: this doesn't affect any current callers, but new users of mapletree may encounter this problem if backported into earlier kernels, so let's fix it in -stable kernels in case of this.

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: 0.001430000 probability, percentile 0.041000000 (date 2026-08-06)

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 54a611b605901c7d5d05b6b8f5d04a6ceb0962aa 4e2ad53ababeaac44d71162650984abfe783960c git Not specified
CNA Linux Linux affected 54a611b605901c7d5d05b6b8f5d04a6ceb0962aa dc4751bd4aba01ccfc02f91adfeee0ba4cda405c git Not specified
CNA Linux Linux affected 54a611b605901c7d5d05b6b8f5d04a6ceb0962aa f5fcf6555a2a4f32947d17b92b173837cc652891 git Not specified
CNA Linux Linux affected 54a611b605901c7d5d05b6b8f5d04a6ceb0962aa cd00dd2585c4158e81fdfac0bbcc0446afbad26d git Not specified
CNA Linux Linux affected 6.1 Not specified
CNA Linux Linux unaffected 6.1 semver Not specified
CNA Linux Linux unaffected 6.1.37 6.1.* semver Not specified
CNA Linux Linux unaffected 6.3.11 6.3.* semver Not specified
CNA Linux Linux unaffected 6.4.1 6.4.* semver Not specified
CNA Linux Linux unaffected 6.5 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/dc4751bd4aba01ccfc02f91adfeee0ba4cda405c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f5fcf6555a2a4f32947d17b92b173837cc652891 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4e2ad53ababeaac44d71162650984abfe783960c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/cd00dd2585c4158e81fdfac0bbcc0446afbad26d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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