CVE-2025-38562 (GCVE-0-2025-38562)

Vulnerability from cvelistv5 – Published: 2025-08-19 17:02 – Updated: 2026-05-11 21:30
VLAI
Title
ksmbd: fix null pointer dereference error in generate_encryptionkey
Summary
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix null pointer dereference error in generate_encryptionkey If client send two session setups with krb5 authenticate to ksmbd, null pointer dereference error in generate_encryptionkey could happen. sess->Preauth_HashValue is set to NULL if session is valid. So this patch skip generate encryption key if session is valid.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 922f85e6e88fdea723a26854c3a6dcb4beb8d0b9 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 96a82e19434a2522525baab59c33332658bc7653 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < d79c8bebaa622ee223128be7c66d8aaeeb634a57 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 2a30ed6428ce83afedca1a6c5c5c4247bcf12d0e (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 015ef163d65496ae3ba6192c96140a22743f0353 (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 9c2dbbc959e1fcc6f603a1a843e9cf743ba383bb (git)
Affected: 0626e6641f6b467447c81dd7678a69c66f7746cf , < 9b493ab6f35178afd8d619800df9071992f715de (git)
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Linux Linux Affected: 5.15
Unaffected: 0 , < 5.15 (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.148 , ≤ 6.1.* (semver)
Unaffected: 6.6.102 , ≤ 6.6.* (semver)
Unaffected: 6.12.42 , ≤ 6.12.* (semver)
Unaffected: 6.15.10 , ≤ 6.15.* (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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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

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.