# CVE-2023-53145: linux: In the Linux kernel, the following vulnerability has been resolved:  Bluetooth: btsdio: fix use after free bug in bts...

CVE-2023-53145 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-53145, released May 10, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2023-53145
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: May 10, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition  In btsdio_probe, the data->work is bound with btsdio_work. It will be started in btsdio_send_frame.  If the btsdio_remove runs with a unfinished work, there may be a race condition that hdev is freed but used in btsdio_work. Fix it by canceling the work before do cleanup in btsdio_remove.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 6.1.52-1 | [DEBIAN-CVE-2023-53145](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53145.md) | May 10, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.3.7-1 | [DEBIAN-CVE-2023-53145](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53145.md) | May 10, 2025 |
| Linux | linux Debian 14 | 6.3.7-1 | [DEBIAN-CVE-2023-53145](https://patchblox.com/security/data/fix/linux/debian-cve-2023-53145.md) | May 10, 2025 |

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Data as of 2026-11-08T06:59:42Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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