ceph: supply snapshot context in ceph_zero_partial_object()

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Summary

CVECVE-2026-43273
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-06 12:16:48 UTC
Updated2026-05-08 20:01:19 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: ceph: supply snapshot context in ceph_zero_partial_object() The ceph_zero_partial_object function was missing proper snapshot context for its OSD write operations, which could lead to data inconsistencies in snapshots. Reproducer: ../src/vstart.sh --new -x --localhost --bluestore ./bin/ceph auth caps client.fs_a mds 'allow rwps fsname=a' mon 'allow r fsname=a' osd 'allow rw tag cephfs data=a' mount -t ceph [email protected]=/ /mnt/mycephfs/ -o conf=./ceph.conf dd if=/dev/urandom of=/mnt/mycephfs/foo bs=64K count=1 mkdir /mnt/mycephfs/.snap/snap1 md5sum /mnt/mycephfs/.snap/snap1/foo fallocate -p -o 0 -l 4096 /mnt/mycephfs/foo echo 3 > /proc/sys/vm/drop/caches md5sum /mnt/mycephfs/.snap/snap1/foo # get different md5sum!!

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

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 ad7a60de882aca31afb58721db166f7e77afcd92 36673344b41c31fb502dd0d0113cec1aa96f581e git Not specified
CNA Linux Linux affected ad7a60de882aca31afb58721db166f7e77afcd92 5788b742007f53406049bef917833a71ddd43f60 git Not specified
CNA Linux Linux affected ad7a60de882aca31afb58721db166f7e77afcd92 757873abfc8ea38592582180aed0f57f0f0cb07a git Not specified
CNA Linux Linux affected ad7a60de882aca31afb58721db166f7e77afcd92 9efa154609cdb658f51c7d76b30a09f7e6485250 git Not specified
CNA Linux Linux affected ad7a60de882aca31afb58721db166f7e77afcd92 531a76c5a2e44264cee8a70121e63eb28c1ba728 git Not specified
CNA Linux Linux affected ad7a60de882aca31afb58721db166f7e77afcd92 69e59a87bab0ea31ab2a584fc65e12dafacf8953 git Not specified
CNA Linux Linux affected ad7a60de882aca31afb58721db166f7e77afcd92 4097e70fc543cca72982854108a32f6ae924e727 git Not specified
CNA Linux Linux affected ad7a60de882aca31afb58721db166f7e77afcd92 f16bd3fa74a2084ee7e16a8a2be7e7399b970907 git Not specified
CNA Linux Linux affected 3.12 Not specified
CNA Linux Linux unaffected 3.12 semver Not specified
CNA Linux Linux unaffected 5.10.252 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.202 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.165 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.128 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.75 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.16 6.18.* semver Not specified
CNA Linux Linux unaffected 6.19.6 6.19.* semver Not specified
CNA Linux Linux unaffected 7.0 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/5788b742007f53406049bef917833a71ddd43f60 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/757873abfc8ea38592582180aed0f57f0f0cb07a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/36673344b41c31fb502dd0d0113cec1aa96f581e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/f16bd3fa74a2084ee7e16a8a2be7e7399b970907 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/531a76c5a2e44264cee8a70121e63eb28c1ba728 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/69e59a87bab0ea31ab2a584fc65e12dafacf8953 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/9efa154609cdb658f51c7d76b30a09f7e6485250 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/4097e70fc543cca72982854108a32f6ae924e727 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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