CVE-2026-43273

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-43273
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!!

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/36673344b41c31fb502dd0d0113cec1aa96f581e Patch
https://git.kernel.org/stable/c/4097e70fc543cca72982854108a32f6ae924e727 Patch
https://git.kernel.org/stable/c/531a76c5a2e44264cee8a70121e63eb28c1ba728 Patch
https://git.kernel.org/stable/c/5788b742007f53406049bef917833a71ddd43f60 Patch
https://git.kernel.org/stable/c/69e59a87bab0ea31ab2a584fc65e12dafacf8953 Patch
https://git.kernel.org/stable/c/757873abfc8ea38592582180aed0f57f0f0cb07a Patch
https://git.kernel.org/stable/c/9efa154609cdb658f51c7d76b30a09f7e6485250 Patch
https://git.kernel.org/stable/c/f16bd3fa74a2084ee7e16a8a2be7e7399b970907 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

11 Nov 2026, 23:10

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta: ceph: proporcionar contexto de instantánea en ceph_zero_partial_object() La función ceph_zero_partial_object carecía del contexto de instantánea adecuado para sus operaciones de escritura OSD, lo que podría llevar a inconsistencias de datos en las instantáneas. Reproductor: .. / 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!!
Information

Published : 2026-05-06 12:16

Updated : 2026-11-11 23:10

NVD link : CVE-2026-43273

Mitre link : CVE-2026-43273

CVE.ORG link : CVE-2026-43273

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo