CVE-2023-54103 (GCVE-0-2023-54103)
Vulnerability from cvelistv5
Published
2025-12-24 13:06
Modified
2025-12-24 13:06
Severity ?
Summary
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
References
Impacted products
Vendor Product Version
Linux Linux Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93
Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93
Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93
Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93
Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93
Version: b2f0d2724ba477d326e9d654d4db1c93e98f8b93
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mtk-jpeg: Fix use after free bug due to uncanceled work\n\nIn mtk_jpeg_probe, \u0026jpeg-\u003ejob_timeout_work is bound with\nmtk_jpeg_job_timeout_work. Then mtk_jpeg_dec_device_run\nand mtk_jpeg_enc_device_run may be called to start the\nwork.\nIf we remove the module which will call mtk_jpeg_remove\nto make cleanup, there may be a unfinished work. The\npossible sequence is as follows, which will cause a\ntypical UAF bug.\n\nFix it by canceling the work before cleanup in the mtk_jpeg_remove\n\nCPU0                  CPU1\n\n                    |mtk_jpeg_job_timeout_work\nmtk_jpeg_remove     |\n  v4l2_m2m_release  |\n    kfree(m2m_dev); |\n                    |\n                    | v4l2_m2m_get_curr_priv\n                    |   m2m_dev-\u003ecurr_ctx //use"
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      "providerMetadata": {
        "dateUpdated": "2025-12-24T13:06:28.654Z",
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    "cveId": "CVE-2023-54103",
    "datePublished": "2025-12-24T13:06:28.654Z",
    "dateReserved": "2025-12-24T13:02:52.517Z",
    "dateUpdated": "2025-12-24T13:06:28.654Z",
    "state": "PUBLISHED"
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  }
}


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