nilfs2: fix data corruption in dsync block recovery for small block sizes

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Summary

CVECVE-2024-26697
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-04-03 15:15:52 UTC
Updated2026-08-04 11:16:57 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: nilfs2: fix data corruption in dsync block recovery for small block sizes The helper function nilfs_recovery_copy_block() of nilfs_recovery_dsync_blocks(), which recovers data from logs created by data sync writes during a mount after an unclean shutdown, incorrectly calculates the on-page offset when copying repair data to the file's page cache. In environments where the block size is smaller than the page size, this flaw can cause data corruption and leak uninitialized memory bytes during the recovery process. Fix these issues by correcting this byte offset calculation on the page.

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: CWE-787

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 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b 5278c3eb6bf5896417572b52adb6be9d26e92f65 git Not specified
CNA Linux Linux affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0ba git Not specified
CNA Linux Linux affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b 364a66be2abdcd4fd426ffa44d9b8f40aafb3caa git Not specified
CNA Linux Linux affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b 120f7fa2008e3bd8b7680b4ab5df942decf60fd5 git Not specified
CNA Linux Linux affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b 9c9c68d64fd3284f7097ed6ae057c8441f39fcd3 git Not specified
CNA Linux Linux affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b 2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0d git Not specified
CNA Linux Linux affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b 2000016bab499074e6248ea85aeea7dd762355d9 git Not specified
CNA Linux Linux affected 0f3e1c7f23f8a6f8224fa1d275381f6d9279ad4b 67b8bcbaed4777871bb0dcc888fb02a614a98ab1 git Not specified
CNA Linux Linux affected 2.6.30 Not specified
CNA Linux Linux unaffected 2.6.30 semver Not specified
CNA Linux Linux unaffected 4.19.307 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.269 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.210 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.149 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.79 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.18 6.6.* semver Not specified
CNA Linux Linux unaffected 6.7.6 6.7.* semver Not specified
CNA Linux Linux unaffected 6.8 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/2000016bab499074e6248ea85aeea7dd762355d9 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0ba af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/120f7fa2008e3bd8b7680b4ab5df942decf60fd5 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2024/06/msg00017.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List
git.kernel.org/stable/c/2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0d af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/364a66be2abdcd4fd426ffa44d9b8f40aafb3caa af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/9c9c68d64fd3284f7097ed6ae057c8441f39fcd3 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2024/06/msg00020.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List
git.kernel.org/stable/c/5278c3eb6bf5896417572b52adb6be9d26e92f65 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/67b8bcbaed4777871bb0dcc888fb02a614a98ab1 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 6000567 Debian Security Update for linux (DSA 5658-1)

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