CVE-2026-89885
- Source
- https://cve.org/CVERecord?id=CVE-2026-89885
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89885.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-89885
- Downstream
- Published
- 2026-09-16T10:31:49Z
- Modified
- 2026-09-17T03:47:23Z
- Severity
-
- 8.4 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- media: platform: mtk-mdp3: Fix SCP device refcounting
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
media: platform: mtk-mdp3: Fix SCP device refcounting
mdp_probe() first tries to get the SCP handle with scp_get(). When that fails, it falls back to looking up the SCP platform device with __get_pdev_by_id() and then reads its driver data.
The fallback lookup returns the platform device with a reference, just like scp_get() does. However, the fallback path currently drops that reference immediately after platform_get_drvdata(). The driver later still calls scp_put(mdp->scp) unconditionally from the probe error path and from mdp_video_device_release(), which drops the SCP device reference again.
Keep the fallback reference until the existing scp_put() call, so that the fallback path follows the same ownership rules as the scp_get() path.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89885.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0259ade4c4ceaf1e184a7c1aea8071ad398f9b6f
- https://git.kernel.org/stable/c/252850653569fdb1a259937e02325cf32c8f0970
- https://git.kernel.org/stable/c/55793e4665b7f15151e6f5ab51ca980e73abed5d
- https://git.kernel.org/stable/c/dce13bd9bade3ecc1acb7579397f24743850997f
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89885.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-89885
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduceddb4d27e6bbbf511f9cdb33f682535a0a3cb7c403Fixeddce13bd9bade3ecc1acb7579397f24743850997f
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced31ba1a4d7a5d9466f6ef4910a372b8200f8aad19Fixed252850653569fdb1a259937e02325cf32c8f0970
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced8f6f3aa21517ef34d50808af0c572e69580dca20Fixed0259ade4c4ceaf1e184a7c1aea8071ad398f9b6fFixed55793e4665b7f15151e6f5ab51ca980e73abed5d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.12.64Fixed6.12.110
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.18.4Fixed6.18.51