CVE-2026-22984 (GCVE-0-2026-22984)

Vulnerability from cvelistv5 – Published: 2026-01-23 15:24 – Updated: 2026-06-16 20:35
VLAI
Title
libceph: prevent potential out-of-bounds reads in handle_auth_done()
Summary
In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-bounds reads in handle_auth_done() Perform an explicit bounds check on payload_len to avoid a possible out-of-bounds access in the callout. [ idryomov: changelog ]
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: cd1a677cad994021b19665ed476aea63f5d54f31 , < 194cfe2af4d2a1de599d39dad636b47c2f6c2c96 (git)
Affected: cd1a677cad994021b19665ed476aea63f5d54f31 , < 79fe3511db416d2f2edcfd93569807cb02736e5e (git)
Affected: cd1a677cad994021b19665ed476aea63f5d54f31 , < ef208ea331ef688729f64089b895ed1b49e842e3 (git)
Affected: cd1a677cad994021b19665ed476aea63f5d54f31 , < 2802ef3380fa8c4a08cda51ec1f085b1a712e9e2 (git)
Affected: cd1a677cad994021b19665ed476aea63f5d54f31 , < 2d653bb63d598ae4b096dd678744bdcc34ee89e8 (git)
Affected: cd1a677cad994021b19665ed476aea63f5d54f31 , < 818156caffbf55cb4d368f9c3cac64e458fb49c9 (git)
Create a notification for this product.
Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.15.198 , ≤ 5.15.* (semver)
Unaffected: 6.1.161 , ≤ 6.1.* (semver)
Unaffected: 6.6.121 , ≤ 6.6.* (semver)
Unaffected: 6.12.66 , ≤ 6.12.* (semver)
Unaffected: 6.18.6 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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\"cd1a677cad994021b19665ed476aea63f5d54f31\", \"lessThan\": \"194cfe2af4d2a1de599d39dad636b47c2f6c2c96\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"cd1a677cad994021b19665ed476aea63f5d54f31\", \"lessThan\": \"79fe3511db416d2f2edcfd93569807cb02736e5e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"cd1a677cad994021b19665ed476aea63f5d54f31\", \"lessThan\": \"ef208ea331ef688729f64089b895ed1b49e842e3\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"cd1a677cad994021b19665ed476aea63f5d54f31\", \"lessThan\": \"2802ef3380fa8c4a08cda51ec1f085b1a712e9e2\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"cd1a677cad994021b19665ed476aea63f5d54f31\", \"lessThan\": \"2d653bb63d598ae4b096dd678744bdcc34ee89e8\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"cd1a677cad994021b19665ed476aea63f5d54f31\", \"lessThan\": \"818156caffbf55cb4d368f9c3cac64e458fb49c9\", \"versionType\": \"git\"}], \"programFiles\": [\"net/ceph/messenger_v2.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.11\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.11\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.15.198\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.15.*\"}, {\"status\": \"unaffected\", \"version\": \"6.1.161\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.1.*\"}, {\"status\": \"unaffected\", \"version\": \"6.6.121\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.12.66\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.12.*\"}, {\"status\": \"unaffected\", \"version\": \"6.18.6\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.18.*\"}, {\"status\": \"unaffected\", \"version\": \"6.19\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"net/ceph/messenger_v2.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/194cfe2af4d2a1de599d39dad636b47c2f6c2c96\"}, {\"url\": \"https://git.kernel.org/stable/c/79fe3511db416d2f2edcfd93569807cb02736e5e\"}, {\"url\": \"https://git.kernel.org/stable/c/ef208ea331ef688729f64089b895ed1b49e842e3\"}, {\"url\": \"https://git.kernel.org/stable/c/2802ef3380fa8c4a08cda51ec1f085b1a712e9e2\"}, {\"url\": \"https://git.kernel.org/stable/c/2d653bb63d598ae4b096dd678744bdcc34ee89e8\"}, {\"url\": \"https://git.kernel.org/stable/c/818156caffbf55cb4d368f9c3cac64e458fb49c9\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nlibceph: prevent potential out-of-bounds reads in handle_auth_done()\\n\\nPerform an explicit bounds check on payload_len to avoid a possible\\nout-of-bounds access in the callout.\\n\\n[ idryomov: changelog ]\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.15.198\", \"versionStartIncluding\": \"5.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1.161\", \"versionStartIncluding\": \"5.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.121\", \"versionStartIncluding\": \"5.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12.66\", \"versionStartIncluding\": \"5.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.18.6\", \"versionStartIncluding\": \"5.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.19\", \"versionStartIncluding\": \"5.11\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2026-05-11T21:57:45.105Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-22984\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-06-16T20:35:08.838Z\", \"dateReserved\": \"2026-01-13T15:37:45.936Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2026-01-23T15:24:06.245Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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Taxonomy of the tags.





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

Author Source Type Date Other

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.