CVE-2026-43273 (GCVE-0-2026-43273)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:28 – Updated: 2026-05-06 11:28
VLAI?
Title
ceph: supply snapshot context in ceph_zero_partial_object()
Summary
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!!
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ad7a60de882aca31afb58721db166f7e77afcd92 , < 36673344b41c31fb502dd0d0113cec1aa96f581e (git)
Affected: ad7a60de882aca31afb58721db166f7e77afcd92 , < 5788b742007f53406049bef917833a71ddd43f60 (git)
Affected: ad7a60de882aca31afb58721db166f7e77afcd92 , < 757873abfc8ea38592582180aed0f57f0f0cb07a (git)
Affected: ad7a60de882aca31afb58721db166f7e77afcd92 , < 9efa154609cdb658f51c7d76b30a09f7e6485250 (git)
Affected: ad7a60de882aca31afb58721db166f7e77afcd92 , < 531a76c5a2e44264cee8a70121e63eb28c1ba728 (git)
Affected: ad7a60de882aca31afb58721db166f7e77afcd92 , < 69e59a87bab0ea31ab2a584fc65e12dafacf8953 (git)
Affected: ad7a60de882aca31afb58721db166f7e77afcd92 , < 4097e70fc543cca72982854108a32f6ae924e727 (git)
Affected: ad7a60de882aca31afb58721db166f7e77afcd92 , < f16bd3fa74a2084ee7e16a8a2be7e7399b970907 (git)
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    Linux Linux Affected: 3.12
Unaffected: 0 , < 3.12 (semver)
Unaffected: 5.10.252 , ≤ 5.10.* (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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    "dateReserved": "2026-05-01T14:12:55.998Z",
    "dateUpdated": "2026-05-06T11:28:56.851Z",
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.