CVE-2021-47445 (GCVE-0-2021-47445)

Vulnerability from cvelistv5 – Published: 2024-05-22 06:19 – Updated: 2026-05-11 13:54
VLAI?
Title
drm/msm: Fix null pointer dereference on pointer edp
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/msm: Fix null pointer dereference on pointer edp The initialization of pointer dev dereferences pointer edp before edp is null checked, so there is a potential null pointer deference issue. Fix this by only dereferencing edp after edp has been null checked. Addresses-Coverity: ("Dereference before null check")
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: ab5b0107ccf3821a6837b0f2819270d6fa0b278f , < f175b9a83e5c252d7c74acddc792840016caae0a (git)
Affected: ab5b0107ccf3821a6837b0f2819270d6fa0b278f , < bacac7d26849c8e903ceb7466d9ce8dc3c2797eb (git)
Affected: ab5b0107ccf3821a6837b0f2819270d6fa0b278f , < 0cd063aa0a09822cc1620fc59a67fe2f9f6338ac (git)
Affected: ab5b0107ccf3821a6837b0f2819270d6fa0b278f , < 7f642b93710b6b1119bdff90be01e6b5a2a5d669 (git)
Affected: ab5b0107ccf3821a6837b0f2819270d6fa0b278f , < f302be08e3de94db8863a0b2958b2bb3e8e998e6 (git)
Affected: ab5b0107ccf3821a6837b0f2819270d6fa0b278f , < 91a340768b012f5b910a203a805b97a345b3db37 (git)
Affected: ab5b0107ccf3821a6837b0f2819270d6fa0b278f , < 46c8ddede0273d1d132beefa9de8b820326982be (git)
Affected: ab5b0107ccf3821a6837b0f2819270d6fa0b278f , < 2133c4fc8e1348dcb752f267a143fe2254613b34 (git)
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Linux Linux Affected: 4.0
Unaffected: 0 , < 4.0 (semver)
Unaffected: 4.4.290 , ≤ 4.4.* (semver)
Unaffected: 4.9.288 , ≤ 4.9.* (semver)
Unaffected: 4.14.252 , ≤ 4.14.* (semver)
Unaffected: 4.19.213 , ≤ 4.19.* (semver)
Unaffected: 5.4.155 , ≤ 5.4.* (semver)
Unaffected: 5.10.75 , ≤ 5.10.* (semver)
Unaffected: 5.14.14 , ≤ 5.14.* (semver)
Unaffected: 5.15 , ≤ * (original_commit_for_fix)
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La inicializaci\u00f3n del puntero dev desreferencias del puntero edp antes de edp se marca como nula, por lo que existe un posible problema de deferencia del puntero nulo. Solucione este problema eliminando la referencia a edp \u00fanicamente despu\u00e9s de que se haya marcado como nulo. 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      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
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  }
}


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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.