CVE-2026-43273

ceph: supply snapshot context in ceph_zero_partial_object()

State: Published
Severity: Not scored
Published: May 6, 2026
Updated: May 11, 2026
Reserved: May 1, 2026

Description

In 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 fs_a@.a=/ /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!!

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	ad7a60de882aca31afb58721db166f7e77afcd92 to before 36673344b41c31fb502dd0d0113cec1aa96f581eAffected ad7a60de882aca31afb58721db166f7e77afcd92 to before 5788b742007f53406049bef917833a71ddd43f60Affected ad7a60de882aca31afb58721db166f7e77afcd92 to before 757873abfc8ea38592582180aed0f57f0f0cb07aAffected ad7a60de882aca31afb58721db166f7e77afcd92 to before 9efa154609cdb658f51c7d76b30a09f7e6485250Affected ad7a60de882aca31afb58721db166f7e77afcd92 to before 531a76c5a2e44264cee8a70121e63eb28c1ba728Affected ad7a60de882aca31afb58721db166f7e77afcd92 to before 69e59a87bab0ea31ab2a584fc65e12dafacf8953Affected ad7a60de882aca31afb58721db166f7e77afcd92 to before 4097e70fc543cca72982854108a32f6ae924e727Affected ad7a60de882aca31afb58721db166f7e77afcd92 to before f16bd3fa74a2084ee7e16a8a2be7e7399b970907Affected
LinuxLinux	3.12Affected before 3.12Not affected 5.10.252 through 5.10.Not affected 5.15.202 through 5.15.Not affected 6.1.165 through 6.1.Not affected 6.6.128 through 6.6.Not affected 6.12.75 through 6.12.Not affected 6.18.16 through 6.18.Not affected 6.19.6 through 6.19.*Not affected 7.0 and laterNot affected

Product

Versions

LinuxLinux

ad7a60de882aca31afb58721db166f7e77afcd92 to before 36673344b41c31fb502dd0d0113cec1aa96f581eAffected
ad7a60de882aca31afb58721db166f7e77afcd92 to before 5788b742007f53406049bef917833a71ddd43f60Affected
ad7a60de882aca31afb58721db166f7e77afcd92 to before 757873abfc8ea38592582180aed0f57f0f0cb07aAffected
ad7a60de882aca31afb58721db166f7e77afcd92 to before 9efa154609cdb658f51c7d76b30a09f7e6485250Affected
ad7a60de882aca31afb58721db166f7e77afcd92 to before 531a76c5a2e44264cee8a70121e63eb28c1ba728Affected
ad7a60de882aca31afb58721db166f7e77afcd92 to before 69e59a87bab0ea31ab2a584fc65e12dafacf8953Affected
ad7a60de882aca31afb58721db166f7e77afcd92 to before 4097e70fc543cca72982854108a32f6ae924e727Affected
ad7a60de882aca31afb58721db166f7e77afcd92 to before f16bd3fa74a2084ee7e16a8a2be7e7399b970907Affected

LinuxLinux

3.12Affected
before 3.12Not affected
5.10.252 through 5.10.*Not affected
5.15.202 through 5.15.*Not affected
6.1.165 through 6.1.*Not affected
6.6.128 through 6.6.*Not affected
6.12.75 through 6.12.*Not affected
6.18.16 through 6.18.*Not affected
6.19.6 through 6.19.*Not affected
7.0 and laterNot affected

References

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