CVE-2022-49506
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-49506
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-49506.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-49506
- Downstream
- Related
- Published
- 2025-02-26T02:13:38Z
- Modified
- 2025-10-15T22:26:46.142714Z
- Summary
- drm/mediatek: Add vblank register/unregister callback functions
- Details
-
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 mtkdispovlirqhandler() and mtkovldisable_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.
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/3a4027b5971fe2a94e32754f007d9d3c12c68ad1
- https://git.kernel.org/stable/c/8a265d9838bc3c63579002d55c2b2c655c4f8f26
- https://git.kernel.org/stable/c/8a2dbdeccef6de47565638abdf3c25f41cdffc37
- https://git.kernel.org/stable/c/b74d921b900b6ce38c6247c0a1c86be9f3746493
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9b0704988b151824a51133dc4c921f4273c5d839Fixed8a2dbdeccef6de47565638abdf3c25f41cdffc37
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9b0704988b151824a51133dc4c921f4273c5d839Fixed8a265d9838bc3c63579002d55c2b2c655c4f8f26
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9b0704988b151824a51133dc4c921f4273c5d839Fixed3a4027b5971fe2a94e32754f007d9d3c12c68ad1
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced9b0704988b151824a51133dc4c921f4273c5d839Fixedb74d921b900b6ce38c6247c0a1c86be9f3746493
Affected versions
v5.*
v5.11
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.15.1
v5.15.10
v5.15.11
v5.15.12
v5.15.13
v5.15.14
v5.15.15
v5.15.16
v5.15.17
v5.15.18
v5.15.19
v5.15.2
v5.15.20
v5.15.21
v5.15.22
v5.15.23
v5.15.24
v5.15.25
v5.15.26
v5.15.27
v5.15.28
v5.15.29
v5.15.3
v5.15.30
v5.15.31
v5.15.32
v5.15.33
v5.15.34
v5.15.35
v5.15.36
v5.15.37
v5.15.38
v5.15.39
v5.15.4
v5.15.40
v5.15.41
v5.15.42
v5.15.43
v5.15.44
v5.15.45
v5.15.46
v5.15.47
v5.15.48
v5.15.49
v5.15.5
v5.15.50
v5.15.51
v5.15.52
v5.15.53
v5.15.6
v5.15.7
v5.15.8
v5.15.9
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.17.1
v5.17.10
v5.17.11
v5.17.12
v5.17.13
v5.17.2
v5.17.3
v5.17.4
v5.17.5
v5.17.6
v5.17.7
v5.17.8
v5.17.9
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.18.1
v5.18.2