CVE-2026-43273

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> ceph: supply snapshot context in ceph_zero_partial_object()<br /> <br /> The ceph_zero_partial_object function was missing proper snapshot<br /> context for its OSD write operations, which could lead to data<br /> inconsistencies in snapshots.<br /> <br /> Reproducer:<br /> ../src/vstart.sh --new -x --localhost --bluestore<br /> ./bin/ceph auth caps client.fs_a mds &amp;#39;allow rwps fsname=a&amp;#39; mon &amp;#39;allow r fsname=a&amp;#39; osd &amp;#39;allow rw tag cephfs data=a&amp;#39;<br /> mount -t ceph fs_a@.a=/ /mnt/mycephfs/ -o conf=./ceph.conf<br /> dd if=/dev/urandom of=/mnt/mycephfs/foo bs=64K count=1<br /> mkdir /mnt/mycephfs/.snap/snap1<br /> md5sum /mnt/mycephfs/.snap/snap1/foo<br /> fallocate -p -o 0 -l 4096 /mnt/mycephfs/foo<br /> echo 3 &gt; /proc/sys/vm/drop/caches<br /> md5sum /mnt/mycephfs/.snap/snap1/foo # get different md5sum!!