{"id":"CVE-2026-43273","summary":"ceph: supply snapshot context in ceph_zero_partial_object()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nceph: supply snapshot context in ceph_zero_partial_object()\n\nThe ceph_zero_partial_object function was missing proper snapshot\ncontext for its OSD write operations, which could lead to data\ninconsistencies in snapshots.\n\nReproducer:\n../src/vstart.sh --new -x --localhost --bluestore\n./bin/ceph auth caps client.fs_a mds 'allow rwps fsname=a' mon 'allow r fsname=a' osd 'allow rw tag cephfs data=a'\nmount -t ceph fs_a@.a=/ /mnt/mycephfs/ -o conf=./ceph.conf\ndd if=/dev/urandom of=/mnt/mycephfs/foo bs=64K count=1\nmkdir /mnt/mycephfs/.snap/snap1\nmd5sum /mnt/mycephfs/.snap/snap1/foo\nfallocate -p -o 0 -l 4096 /mnt/mycephfs/foo\necho 3 \u003e /proc/sys/vm/drop/caches\nmd5sum /mnt/mycephfs/.snap/snap1/foo # get different md5sum!!","modified":"2026-05-28T03:54:31.363358501Z","published":"2026-05-06T11:28:56.851Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43273.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/36673344b41c31fb502dd0d0113cec1aa96f581e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4097e70fc543cca72982854108a32f6ae924e727"},{"type":"WEB","url":"https://git.kernel.org/stable/c/531a76c5a2e44264cee8a70121e63eb28c1ba728"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5788b742007f53406049bef917833a71ddd43f60"},{"type":"WEB","url":"https://git.kernel.org/stable/c/69e59a87bab0ea31ab2a584fc65e12dafacf8953"},{"type":"WEB","url":"https://git.kernel.org/stable/c/757873abfc8ea38592582180aed0f57f0f0cb07a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9efa154609cdb658f51c7d76b30a09f7e6485250"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f16bd3fa74a2084ee7e16a8a2be7e7399b970907"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43273.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43273"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"ad7a60de882aca31afb58721db166f7e77afcd92"},{"fixed":"36673344b41c31fb502dd0d0113cec1aa96f581e"},{"fixed":"5788b742007f53406049bef917833a71ddd43f60"},{"fixed":"757873abfc8ea38592582180aed0f57f0f0cb07a"},{"fixed":"9efa154609cdb658f51c7d76b30a09f7e6485250"},{"fixed":"531a76c5a2e44264cee8a70121e63eb28c1ba728"},{"fixed":"69e59a87bab0ea31ab2a584fc65e12dafacf8953"},{"fixed":"4097e70fc543cca72982854108a32f6ae924e727"},{"fixed":"f16bd3fa74a2084ee7e16a8a2be7e7399b970907"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43273.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.12.0"},{"fixed":"5.10.252"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.202"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.165"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.128"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-43273.json"}}],"schema_version":"1.7.5"}