{"id":"CVE-2026-89885","published":"2026-09-16T11:16:56.983","lastModified":"2026-09-16T15:18:15.090","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: platform: mtk-mdp3: Fix SCP device refcounting\n\nmdp_probe() first tries to get the SCP handle with scp_get(). When that\nfails, it falls back to looking up the SCP platform device with\n__get_pdev_by_id() and then reads its driver data.\n\nThe fallback lookup returns the platform device with a reference, just\nlike scp_get() does. However, the fallback path currently drops that\nreference immediately after platform_get_drvdata(). The driver later\nstill calls scp_put(mdp->scp) unconditionally from the probe error path\nand from mdp_video_device_release(), which drops the SCP device\nreference again.\n\nKeep the fallback reference until the existing scp_put() call, so that\nthe fallback path follows the same ownership rules as the scp_get()\npath.","cvssScore":8.4,"cvssSeverity":"HIGH","cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/0259ade4c4ceaf1e184a7c1aea8071ad398f9b6f","tags":[]},{"url":"https://git.kernel.org/stable/c/252850653569fdb1a259937e02325cf32c8f0970","tags":[]},{"url":"https://git.kernel.org/stable/c/55793e4665b7f15151e6f5ab51ca980e73abed5d","tags":[]},{"url":"https://git.kernel.org/stable/c/dce13bd9bade3ecc1acb7579397f24743850997f","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}