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CVE-2026-23189

In the Linux kernel, the following vulnerability has been resolved: ceph: fix NULL pointer dereference in ceph_mds_auth_match() The CephFS kernel client has regression starting from 6.18-rc1. We have issue in ceph_mds_auth_match() if fs_name == NULL: const char fs_name = mdsc->fsc->mount_options->mds_namespace; ... if (auth->match.fs_name && strcmp(auth->match.fs_name, fs_name)) { / fsname mismatch, try next one */ return 0; } Patrick Donnelly suggeste
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:f07d9452b41dc96ae56e59fd8f3f7cec0f0c0a66c4ab87f734ce5e7cfe8b577d
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["fs/ceph/mds_client.c","fs/ceph/mdsmap.c","fs/ceph/mdsmap.h","fs/ceph/super.h","include/linux/ceph/ceph_fs.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.70","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.10","versionType":"semver"},{"lessThanOrEqual"…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bb85c730464e006c8a79e6305ed2bb1a21e2432934d129dae461c36e4b4fdc0e · sha256:8b26b41dd66f4638… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/ceph/mds_client.c","fs/ceph/mdsmap.c","fs/ceph/mdsmap.h","fs/ceph/super.h","include/linux/ceph/ceph_fs.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c6f8326f26bd20d648d9a55afd68148d1b6afe28","status":"affected","version":"07640d34a781bb2e39020a39137073c03c4aa932","versionType":"git"},{"lessThan":"57b36ffc8881dd455d875f85c105901974af2130","status":"affected","version":"22c73d52a6d05c5a2053385c0d6cd9984732799d","versionType":"git"},{"lessThan":"7987cce375a…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bb85c730464e006c8a79e6305ed2bb1a21e2432934d129dae461c36e4b4fdc0e · sha256:8b26b41dd66f4638… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["fs/ceph/mds_client.c","fs/ceph/mdsmap.c","fs/ceph/mdsmap.h","fs/ceph/super.h","include/linux/ceph/ceph_fs.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.18"},{"lessThan":"6.18","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.70","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.10","versionType":"semver"},{"lessThanOrEqual"…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bb85c730464e006c8a79e6305ed2bb1a21e2432934d129dae461c36e4b4fdc0e · sha256:8b26b41dd66f4638… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/ceph/mds_client.c","fs/ceph/mdsmap.c","fs/ceph/mdsmap.h","fs/ceph/super.h","include/linux/ceph/ceph_fs.h"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"c6f8326f26bd20d648d9a55afd68148d1b6afe28","status":"affected","version":"07640d34a781bb2e39020a39137073c03c4aa932","versionType":"git"},{"lessThan":"57b36ffc8881dd455d875f85c105901974af2130","status":"affected","version":"22c73d52a6d05c5a2053385c0d6cd9984732799d","versionType":"git"},{"lessThan":"7987cce375a…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:bb85c730464e006c8a79e6305ed2bb1a21e2432934d129dae461c36e4b4fdc0e · sha256:8b26b41dd66f4638… · /containers/cna/affected/0

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/57b36ffc8881dd455d875f85c105901974af2130"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bb85c730464e006c8a79e6305ed2bb1a21e2432934d129dae461c36e4b4fdc0e · sha256:8b26b41dd66f4638… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/7987cce375ac8ce98e170a77aa2399f2cf6eb99f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bb85c730464e006c8a79e6305ed2bb1a21e2432934d129dae461c36e4b4fdc0e · sha256:8b26b41dd66f4638… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/c6f8326f26bd20d648d9a55afd68148d1b6afe28"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:bb85c730464e006c8a79e6305ed2bb1a21e2432934d129dae461c36e4b4fdc0e · sha256:8b26b41dd66f4638… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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