CVE-2021-47063 (GCVE-0-2021-47063)

Vulnerability from cvelistv5 – Published: 2024-02-29 22:37 – Updated: 2025-05-04 07:03
VLAI?
Title
drm: bridge/panel: Cleanup connector on bridge detach
Summary
In the Linux kernel, the following vulnerability has been resolved: drm: bridge/panel: Cleanup connector on bridge detach If we don't call drm_connector_cleanup() manually in panel_bridge_detach(), the connector will be cleaned up with the other DRM objects in the call to drm_mode_config_cleanup(). However, since our drm_connector is devm-allocated, by the time drm_mode_config_cleanup() will be called, our connector will be long gone. Therefore, the connector must be cleaned up when the bridge is detached to avoid use-after-free conditions. v2: Cleanup connector only if it was created v3: Add FIXME v4: (Use connector->dev) directly in if() block
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 13dfc0540a575b47b2d640b093ac16e9e09474f6 , < ce450934a00cf896e648fde08d0bd1426653d7a2 (git)
Affected: 13dfc0540a575b47b2d640b093ac16e9e09474f6 , < 18149b420c9bd93c443e8d1f48a063d71d9f6aa1 (git)
Affected: 13dfc0540a575b47b2d640b093ac16e9e09474f6 , < 98d7d76a74e48ec3ddf2e23950adff7edcab9327 (git)
Affected: 13dfc0540a575b47b2d640b093ac16e9e09474f6 , < 4d906839d321c2efbf3fed4bc31ffd9ff55b75c0 (git)
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    Linux Linux Affected: 4.13
Unaffected: 0 , < 4.13 (semver)
Unaffected: 5.10.37 , ≤ 5.10.* (semver)
Unaffected: 5.11.21 , ≤ 5.11.* (semver)
Unaffected: 5.12.4 , ≤ 5.12.* (semver)
Unaffected: 5.13 , ≤ * (original_commit_for_fix)
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  • 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.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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