CVE-2026-43304 (GCVE-0-2026-43304)

Vulnerability from cvelistv5 – Published: 2026-05-08 13:11 – Updated: 2026-05-08 13:11
VLAI?
Title
libceph: define and enforce CEPH_MAX_KEY_LEN
Summary
In the Linux kernel, the following vulnerability has been resolved: libceph: define and enforce CEPH_MAX_KEY_LEN When decoding the key, verify that the key material would fit into a fixed-size buffer in process_auth_done() and generally has a sane length. The new CEPH_MAX_KEY_LEN check replaces the existing check for a key with no key material which is a) not universal since CEPH_CRYPTO_NONE has to be excluded and b) doesn't provide much value since a smaller than needed key is just as invalid as no key -- this has to be handled elsewhere anyway.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 6405e8c680974bb74e2c98d5249fb52c7b12a6c6 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8d745d38c88ecbed95f6b2b39857bf89f35a3244 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e1dc45d97975f9db65694d234fbddf1915176e16 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1b275bd49e58752efb83767a5d1aed41356c5e64 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < c1a0f5f1e5e7e98c36a362ec3d1fcfd9932931ed (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d82467c07b03a27c3c5469b62bb3b726305a80bb (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ac431d597a9bdfc2ba6b314813f29a6ef2b4a3bf (git)
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    Linux Linux 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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      "providerMetadata": {
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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.