# CVE-2021-47653: linux: In the Linux kernel, the following vulnerability has been resolved:  media: davinci: vpif: fix use-after-free on driv...

CVE-2021-47653 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-47653, released February 26, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2021-47653
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0027
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  media: davinci: vpif: fix use-after-free on driver unbind  The driver allocates and registers two platform device structures during probe, but the devices were never deregistered on driver unbind.  This results in a use-after-free on driver unbind as the device structures were allocated using devres and would be freed by driver core when remove() returns.  Fix this by adding the missing deregistration calls to the remove() callback and failing probe on registration errors.  Note that the platform device structures must be freed using a proper release callback to avoid leaking associated resources like device names.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.17.3-1 | [DEBIAN-CVE-2021-47653](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47653.md) | Feb 26, 2025 |
| Linux | linux Debian 13.5 (trixie) | 5.17.3-1 | [DEBIAN-CVE-2021-47653](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47653.md) | Feb 26, 2025 |
| Linux | linux Debian 14 | 5.17.3-1 | [DEBIAN-CVE-2021-47653](https://patchblox.com/security/data/fix/linux/debian-cve-2021-47653.md) | Feb 26, 2025 |

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Data as of 2026-11-07T18:46:35Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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