Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
db4d27e6bbbf511f9cdb33f682535a0a3cb7c403 to < dce13bd9bade3ecc1acb7579397f24743850997faffected31ba1a4d7a5d9466f6ef4910a372b8200f8aad19 to < 252850653569fdb1a259937e02325cf32c8f0970affected8f6f3aa21517ef34d50808af0c572e69580dca20 to < 0259ade4c4ceaf1e184a7c1aea8071ad398f9b6faffected8f6f3aa21517ef34d50808af0c572e69580dca20 to < 55793e4665b7f15151e6f5ab51ca980e73abed5daffected6.12.64 to < 6.12.110affected6.18.4 to < 6.18.51affected
Linux Linux
Default version status: affected
6.19affected0 to < 6.19unaffected6.12.110 to ≤ 6.12.*unaffected6.18.51 to ≤ 6.18.*unaffected7.2.5 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected