CVE-2021-47659 (GCVE-0-2021-47659)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:05 – Updated: 2026-05-11 13:58
VLAI
Title
drm/plane: Move range check for format_count earlier
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/plane: Move range check for format_count earlier While the check for format_count > 64 in __drm_universal_plane_init() shouldn't be hit (it's a WARN_ON), in its current position it will then leak the plane->format_types array and fail to call drm_mode_object_unregister() leaking the modeset identifier. Move it to the start of the function to avoid allocating those resources in the first place.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 , < 4ab7e453a3ee88c274cf97bee9487ab92a66d313 (git)
Affected: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 , < 1e29d829ad51d1472dd035487953a6724b56fc33 (git)
Affected: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 , < b5cd108143513e4498027b96ec4710702d186f11 (git)
Affected: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 , < 978e3d023256bfaf34a0033d40c94e8a8e70cf3c (git)
Affected: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 , < 787163d19bc3cdc6ca4b96223f62208534d1cf6b (git)
Affected: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 , < ad6dd7a2bac86118985c7b3426e175b9d3c1ec4f (git)
Affected: e6fc3b68558e4c6d8d160b5daf2511b99afa8814 , < 4b674dd69701c2e22e8e7770c1706a69f3b17269 (git)
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Linux Linux Affected: 4.14
Unaffected: 0 , < 4.14 (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
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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.