# CVE-2023-54103: linux: In the Linux kernel, the following vulnerability has been resolved:  media: mtk-jpeg: Fix use after free bug due to u...

CVE-2023-54103 is fixed in linux on 1 platform, first by DEBIAN-CVE-2023-54103, released December 24, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-54103
- Priority: Routine
- CVSS: n/a
- EPSS: n/a
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 24, 2025

## Description

In the Linux kernel, the following vulnerability has been resolved:  media: mtk-jpeg: Fix use after free bug due to uncanceled work  In mtk_jpeg_probe, &jpeg->job_timeout_work is bound with mtk_jpeg_job_timeout_work. Then mtk_jpeg_dec_device_run and mtk_jpeg_enc_device_run may be called to start the work. If we remove the module which will call mtk_jpeg_remove to make cleanup, there may be a unfinished work. The possible sequence is as follows, which will cause a typical UAF bug.  Fix it by canceling the work before cleanup in the mtk_jpeg_remove  CPU0                  CPU1                      |mtk_jpeg_job_timeout_work mtk_jpeg_remove     |   v4l2_m2m_release  |     kfree(m2m_dev); |                     |                     | v4l2_m2m_get_curr_priv                     |   m2m_dev->curr_ctx //use

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 11.6 (bullseye) | 5.10.205-1 | [DEBIAN-CVE-2023-54103](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54103.md) | Dec 24, 2025 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.55-1 | [DEBIAN-CVE-2023-54103](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54103.md) | Dec 24, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.5.3-1 | [DEBIAN-CVE-2023-54103](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54103.md) | Dec 24, 2025 |
| Linux | linux Debian 14 | 6.5.3-1 | [DEBIAN-CVE-2023-54103](https://patchblox.com/security/data/fix/linux/debian-cve-2023-54103.md) | Dec 24, 2025 |

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Data as of 2026-11-08T13:06:02Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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