nilfs2: protect references to superblock parameters exposed in sysfs

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-46780
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-09-18 08:15:05 UTC
Updated2026-08-04 11:20:24 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: nilfs2: protect references to superblock parameters exposed in sysfs The superblock buffers of nilfs2 can not only be overwritten at runtime for modifications/repairs, but they are also regularly swapped, replaced during resizing, and even abandoned when degrading to one side due to backing device issues. So, accessing them requires mutual exclusion using the reader/writer semaphore "nilfs->ns_sem". Some sysfs attribute show methods read this superblock buffer without the necessary mutual exclusion, which can cause problems with pointer dereferencing and memory access, so fix it.

Risk And Classification

Primary CVSS: v3.1 5.5 MEDIUM from [email protected]

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

Problem Types: NVD-CWE-noinfo

VersionSourceTypeScoreSeverityVector
3.1[email protected]Primary5.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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
None
Integrity
None
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected da7141fb78db915680616e15677539fc8140cf53 b90beafac05931cbfcb6b1bd4f67c1923f47040e git Not specified
CNA Linux Linux affected da7141fb78db915680616e15677539fc8140cf53 ba97ba173f9625d5f34a986088979eae8b80d38e git Not specified
CNA Linux Linux affected da7141fb78db915680616e15677539fc8140cf53 157c0d94b4c40887329418c70ef4edd1a8d6b4ed git Not specified
CNA Linux Linux affected da7141fb78db915680616e15677539fc8140cf53 b14e7260bb691d7f563f61da07d61e3c8b59a614 git Not specified
CNA Linux Linux affected da7141fb78db915680616e15677539fc8140cf53 19cfeba0e4b8eda51484fcf8cf7d150418e1d880 git Not specified
CNA Linux Linux affected da7141fb78db915680616e15677539fc8140cf53 8c6e43b3d5f109cf9c61bc188fcc8175404e924f git Not specified
CNA Linux Linux affected da7141fb78db915680616e15677539fc8140cf53 962562d4c70c5cdeb4e955d63ff2017c4eca1aad git Not specified
CNA Linux Linux affected da7141fb78db915680616e15677539fc8140cf53 683408258917541bdb294cd717c210a04381931e git Not specified
CNA Linux Linux affected 3.17 Not specified
CNA Linux Linux unaffected 3.17 semver Not specified
CNA Linux Linux unaffected 4.19.322 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.284 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.226 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.167 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.110 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.51 6.6.* semver Not specified
CNA Linux Linux unaffected 6.10.10 6.10.* semver Not specified
CNA Linux Linux unaffected 6.11 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/b90beafac05931cbfcb6b1bd4f67c1923f47040e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/962562d4c70c5cdeb4e955d63ff2017c4eca1aad 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/157c0d94b4c40887329418c70ef4edd1a8d6b4ed 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/b14e7260bb691d7f563f61da07d61e3c8b59a614 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/8c6e43b3d5f109cf9c61bc188fcc8175404e924f 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/ba97ba173f9625d5f34a986088979eae8b80d38e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/19cfeba0e4b8eda51484fcf8cf7d150418e1d880 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2024/10/msg00003.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/683408258917541bdb294cd717c210a04381931e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/01/msg00001.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
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