# CVE-2021-47063: linux: In the Linux kernel, the following vulnerability has been resolved:  drm: bridge/panel: Cleanup connector on bridge d...

CVE-2021-47063 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47063, released February 29, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-47063
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0026
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 29, 2024

## Description

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

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.10.38-1 | [DEBIAN-CVE-2021-47063](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47063.md) | Feb 29, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.10.38-1 | [DEBIAN-CVE-2021-47063](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47063.md) | Feb 29, 2024 |
| Linux | linux Debian 14 | 5.10.38-1 | [DEBIAN-CVE-2021-47063](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47063.md) | Feb 29, 2024 |

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