Tracker / CVE-2022-49506
CVE-2022-49506
Medium 5.5
In the Linux kernel, the following vulnerability has been resolved: drm/mediatek: Add vblank register/unregister callback functions We encountered a kernel panic issue that callback data will be NULL when it's using in ovl irq handler. There is a timing issue between mtk_disp_ovl_irq_handler() and mtk_ovl_disable_vblank(). To resolve this issue, we use the flow to register/unregister vblank cb: - Register callback function and callback data when crtc creates. - Unregister callback function and callback data when crtc destroies. With this solution, we can assure callback data will not be NULL when vblank is disable.
Affected products and versions
| linux | linux_kernel · 5.12 → 5.15.54 |
|---|---|
| linux | linux_kernel · 5.16 → 5.17.14 |
| linux | linux_kernel · 5.18 → 5.18.3 |
Analysis
This page is not indexable yet.Until it carries original analysis — what it actually exposes, how to check in two minutes whether a system was touched, what to do if it was — the page stays noindex. The database decides that, not the template.