What is CVE-2022-49506?

CVE-2022-49506 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.12 onward and patched in 5.15.54, 5.17.14, 5.18.3 and others. CVE-2022-49506 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-49506?

CVE-2022-49506 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-49506?

Yes, CVE-2022-49506 has been patched. Fixed versions include 5.15.54, 5.17.14, 5.18.3 and others. If you are running Linux kernel 5.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-49506 actively exploited?

CVE-2022-49506 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-49506

Medium

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.

Package Linux Kernel

Published 2025-02-26

Last modified 2025-10-21

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected versions

Linux kernel versions 5.12 and later are affected. Fixed in 5.15.54, 5.17.14, 5.18.3, 5.19 and their respective stable series.

Affected from

≥ 5.12

Fixed in

✓ 5.15.54 5.15.x ✓ 5.17.14 5.17.x ✓ 5.18.3 5.18.x ✓ 5.19

References

The following references provide additional information about CVE-2022-49506 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/3a4027b5971fe2a94e32754f007d9d3c12c68ad1
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8a265d9838bc3c63579002d55c2b2c655c4f8f26
Patch
Kernel patch commit
https://git.kernel.org/stable/c/8a2dbdeccef6de47565638abdf3c25f41cdffc37
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2022-49506

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-02-26

Modified 2025-10-21

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-49506?

CVE-2022-49506 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.12 onward and has been patched in 5.15.54, 5.17.14, 5.18.3 and others. CVE-2022-49506 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-49506?

CVE-2022-49506 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-49506?

Yes — CVE-2022-49506 has been patched. Fixed versions include 5.15.54, 5.17.14, 5.18.3 and others. If you are running Linux kernel 5.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-49506 actively exploited?

No — CVE-2022-49506 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.