PT-2025-8439 · Linux+2 · Linux Kernel+2
Published
2022-04-06
·
Updated
2025-04-14
·
CVE-2022-49506
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A kernel panic issue was encountered due to a timing problem between
mtk disp ovl irq handler() and mtk ovl disable vblank() functions. This issue occurred when callback data was NULL in the ovl irq handler. The problem was resolved by implementing a register/unregister callback flow for vblank.Recommendations
To resolve this issue, register the callback function and callback data when the crtc is created, and unregister the callback function and callback data when the crtc is destroyed. This ensures that the callback data will not be NULL when vblank is disabled.
Exploit
Fix
Improper Resource Release
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Weakness Enumeration
Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse