Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Fix ovl adaptor platform device leak mtk_drm_probe() creates an OVL adaptor platform device with platform_device_register_data() when the display pipeline requires the OVL adaptor. If a later initialization step fails, the probe error path releases the DRM resources without unregistering the already registered OVL adaptor device. The normal remove path likewise leaves the device registered after the DRM driver is unbound. Keep track of whether the OVL adaptor was successfully registered and unregister it on probe failure. Also recover the platform device from the stored DDP component device and unregister it during normal removal. The issue was identified by a static analysis tool I developed and confirmed by manual review.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 0d9eee9118b77e51eeafc5bf4d008fac97035d56 before 03fb1c657028cb9f189b400f3adb46e3ba676aa5; affected 0d9eee9118b77e51eeafc5bf4d008fac97035d56 before 3d85bd738aba61df14dfaf8fe638e2172d8427bf; affected 0d9eee9118b77e51eeafc5bf4d008fac97035d56 before 629458b7e49559593823e351535294db17331be7; affected 0d9eee9118b77e51eeafc5bf4d008fac97035d56 before 8e3a350075b556f2fed4517705935bfee4529fb6; affected 0d9eee9118b77e51eeafc5bf4d008fac97035d56 before 048739be3e9cacae5301b68245668002fe6f0ce5 |
| Linux / Linux | affected 6.4; unaffected 0 before 6.4; unaffected 6.6.160 through 6.6.*; unaffected 6.12.113 through 6.12.*; unaffected 6.18.56 through 6.18.*; unaffected 7.2.10 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/03fb1c657028cb9f189b400f3adb46e3ba676aa5
- https://git.kernel.org/stable/c/3d85bd738aba61df14dfaf8fe638e2172d8427bf
- https://git.kernel.org/stable/c/629458b7e49559593823e351535294db17331be7
- https://git.kernel.org/stable/c/8e3a350075b556f2fed4517705935bfee4529fb6
- https://git.kernel.org/stable/c/048739be3e9cacae5301b68245668002fe6f0ce5