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CVE-2026-52957

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential null-ptr-deref in decode_choose_args() A message of type CEPH_MSG_OSD_MAP contains an OSD map that itself contains a CRUSH map. When decoding this CRUSH map in crush_decode(), an array of max_buckets CRUSH buckets is decoded, where some indices may not refer to actual buckets and are therefore set to NULL. The received CRUSH map may optionally contain choose_args that get decoded in decode_choose_args().
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:421aa6fc6703f0deb0b224402ec8cdb7cebcd66522377ab13e27a8aa0eab6050
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":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.13"},{"lessThan":"4.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrE…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d55ffad8d422b5d1cc44dad32bd3d25f4471cd9f","status":"affected","version":"c7ed1a4bf4b446317eefa0f4916d94b1f6d3ada5","versionType":"git"},{"lessThan":"301286c0ccd37d66b0e40786fd35a4f19cdbd88a","status":"affected","version":"c7ed1a4bf4b446317eefa0f4916d94b1f6d3ada5","versionType":"git"},{"lessThan":"7169f326a23d0f547fcd90e68b72fd387622e126","status":"affected","version":"c7ed1a4bf4b446317eefa0f4916d…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.13"},{"lessThan":"4.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.258","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.209","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.175","versionType":"semver"},{"lessThanOrE…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/ceph/osdmap.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d55ffad8d422b5d1cc44dad32bd3d25f4471cd9f","status":"affected","version":"c7ed1a4bf4b446317eefa0f4916d94b1f6d3ada5","versionType":"git"},{"lessThan":"301286c0ccd37d66b0e40786fd35a4f19cdbd88a","status":"affected","version":"c7ed1a4bf4b446317eefa0f4916d94b1f6d3ada5","versionType":"git"},{"lessThan":"7169f326a23d0f547fcd90e68b72fd387622e126","status":"affected","version":"c7ed1a4bf4b446317eefa0f4916d…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/metrics/0/cvssV3_1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/28b0a2ab8c82d0bbdeb8013029c67c978ce6e4bf"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/301286c0ccd37d66b0e40786fd35a4f19cdbd88a"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/312ec973efac0efb9b9ed64214235910e9ecbaa8"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/7169f326a23d0f547fcd90e68b72fd387622e126"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/a20e16ebfe2fa65348eb4b2dc7deac330ce03e9c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/d55ffad8d422b5d1cc44dad32bd3d25f4471cd9f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/d7a65a34d2453f8cd3e0cc0e1319740af7e24276"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/f2f95e6d4b97e70bb876139b0583fc8079983f85"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d2dffb6ae88fe0c493855f2e26b1718ff5a3c6270c9dc3dcde6be0118d540cc0 · sha256:1193d0c138b4e825… · /containers/cna/references/5

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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