CVE-2022-49506
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drm/mediatek: Add vblank register/unregister callback functions
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 9b0704988b151824a51133dc4c921f4273c5d839 | affected | git | 8a2dbdeccef6de47565638abdf3c25f41cdffc37 | Unavailable | None listed |
| 9b0704988b151824a51133dc4c921f4273c5d839 | affected | git | 8a265d9838bc3c63579002d55c2b2c655c4f8f26 | Unavailable | None listed |
| 9b0704988b151824a51133dc4c921f4273c5d839 | affected | git | 3a4027b5971fe2a94e32754f007d9d3c12c68ad1 | Unavailable | None listed |
| 9b0704988b151824a51133dc4c921f4273c5d839 | affected | git | b74d921b900b6ce38c6247c0a1c86be9f3746493 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.12 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.12 | Unavailable | None listed |
| 5.15.54 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.17.14 | unaffected | semver | Unavailable | 5.17.* | None listed |
| 5.18.3 | unaffected | semver | Unavailable | 5.18.* | None listed |
| 5.19 | unaffected | original_commit_for_fix | Unavailable | * | None listed |