{"id":"CVE-2026-43273","state":"PUBLISHED","title":"ceph: supply snapshot context in ceph_zero_partial_object()","description":"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 > /proc/sys/vm/drop/caches\nmd5sum /mnt/mycephfs/.snap/snap1/foo # get different md5sum!!","publishedAt":"2026-05-06T11:28:56.851Z","updatedAt":"2026-05-11T22:21:22.184Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"36673344b41c31fb502dd0d0113cec1aa96f581e","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"5788b742007f53406049bef917833a71ddd43f60","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"757873abfc8ea38592582180aed0f57f0f0cb07a","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"9efa154609cdb658f51c7d76b30a09f7e6485250","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"531a76c5a2e44264cee8a70121e63eb28c1ba728","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"69e59a87bab0ea31ab2a584fc65e12dafacf8953","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"4097e70fc543cca72982854108a32f6ae924e727","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"f16bd3fa74a2084ee7e16a8a2be7e7399b970907","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ceph/file.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.12","versionType":"semver"},{"version":"5.10.252","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.202","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ceph/file.c"]}],"references":["https://git.kernel.org/stable/c/36673344b41c31fb502dd0d0113cec1aa96f581e","https://git.kernel.org/stable/c/5788b742007f53406049bef917833a71ddd43f60","https://git.kernel.org/stable/c/757873abfc8ea38592582180aed0f57f0f0cb07a","https://git.kernel.org/stable/c/9efa154609cdb658f51c7d76b30a09f7e6485250","https://git.kernel.org/stable/c/531a76c5a2e44264cee8a70121e63eb28c1ba728","https://git.kernel.org/stable/c/69e59a87bab0ea31ab2a584fc65e12dafacf8953","https://git.kernel.org/stable/c/4097e70fc543cca72982854108a32f6ae924e727","https://git.kernel.org/stable/c/f16bd3fa74a2084ee7e16a8a2be7e7399b970907"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43273.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43273","state":"PUBLISHED","datePublished":"2026-05-06T11:28:56.851Z","dateUpdated":"2026-05-11T22:21:22.184Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.998Z"},"containers":{"cna":{"title":"ceph: supply snapshot context in ceph_zero_partial_object()","descriptions":[{"lang":"en","value":"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 > /proc/sys/vm/drop/caches\nmd5sum /mnt/mycephfs/.snap/snap1/foo # get different md5sum!!"}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"36673344b41c31fb502dd0d0113cec1aa96f581e","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"5788b742007f53406049bef917833a71ddd43f60","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"757873abfc8ea38592582180aed0f57f0f0cb07a","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"9efa154609cdb658f51c7d76b30a09f7e6485250","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"531a76c5a2e44264cee8a70121e63eb28c1ba728","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"69e59a87bab0ea31ab2a584fc65e12dafacf8953","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"4097e70fc543cca72982854108a32f6ae924e727","versionType":"git"},{"version":"ad7a60de882aca31afb58721db166f7e77afcd92","status":"affected","lessThan":"f16bd3fa74a2084ee7e16a8a2be7e7399b970907","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ceph/file.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.12","versionType":"semver"},{"version":"5.10.252","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.202","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ceph/file.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/36673344b41c31fb502dd0d0113cec1aa96f581e"},{"url":"https://git.kernel.org/stable/c/5788b742007f53406049bef917833a71ddd43f60"},{"url":"https://git.kernel.org/stable/c/757873abfc8ea38592582180aed0f57f0f0cb07a"},{"url":"https://git.kernel.org/stable/c/9efa154609cdb658f51c7d76b30a09f7e6485250"},{"url":"https://git.kernel.org/stable/c/531a76c5a2e44264cee8a70121e63eb28c1ba728"},{"url":"https://git.kernel.org/stable/c/69e59a87bab0ea31ab2a584fc65e12dafacf8953"},{"url":"https://git.kernel.org/stable/c/4097e70fc543cca72982854108a32f6ae924e727"},{"url":"https://git.kernel.org/stable/c/f16bd3fa74a2084ee7e16a8a2be7e7399b970907"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:21:22.184Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"5.10.252"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}