CVE-2023-54103
Published: December 27, 2025Last modified: December 27, 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
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.53-r0) |
| 25 LTS | linux-lts | Not affected (6.6.89-r0) | |
| Stream | linux-lts | Fixed (6.6.58-r0) |
References
- https://git.kernel.org/stable/c/2fc20f8bcc2b4d31c808a5320506c31aa2cf3834
- https://git.kernel.org/stable/c/715c0200b4809396998e562ce5cd0284e7314cc1
- https://git.kernel.org/stable/c/8977d9924843823f46696d7d9432ea4b2499ed14
- https://git.kernel.org/stable/c/c677d7ae83141d390d1253abebafa49c962afb52
- https://git.kernel.org/stable/c/d346a2ef6b1ebb77d740890cfaf8478c5b286380
- https://git.kernel.org/stable/c/d56dbfe750a8f96789cc86a911864f663e63bc5d