What is CVE-2022-50036?

CVE-2022-50036 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 4.18 onward and patched in 5.10.138, 5.15.63, 5.19.4 and others. CVE-2022-50036 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50036?

CVE-2022-50036 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-2022-50036?

Yes, CVE-2022-50036 has been patched. Fixed versions include 5.10.138, 5.15.63, 5.19.4 and others. If you are running Linux kernel 4.18 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50036 actively exploited?

CVE-2022-50036 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-50036

Medium

In the Linux kernel, the following vulnerability has been resolved: drm/sun4i: dsi: Prevent underflow when computing packet sizes Currently, the packet overhead is subtracted using unsigned arithmetic. With a short sync pulse, this could underflow and wrap around to near the maximal u16 value. Fix this by using signed subtraction. The call to max() will correctly handle any negative numbers that are produced. Apply the same fix to the other timings, even though those subtractions are less likely to underflow.

Package Linux Kernel

Published 2025-06-18

Last modified 2025-11-13

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

Weakness type

CWE-191

CVE-2022-50036 is classified as CWE-191

See CWE-191 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 4.18 and later are affected. Fixed in 5.10.138, 5.15.63, 5.19.4, 6.0 and their respective stable series.

Affected from

≥ 4.18

Fixed in

✓ 5.10.138 5.10.x ✓ 5.15.63 5.15.x ✓ 5.19.4 5.19.x ✓ 6.0

References

The following references provide additional information about CVE-2022-50036 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/82a1356a933d8443139f8886f11b63c974a09a67
Patch
Kernel patch commit
https://git.kernel.org/stable/c/98e28de472ef248352f04f87e29e634ebb0ec240
Patch
Kernel patch commit
https://git.kernel.org/stable/c/a1e7908f78f5a7f53f8cd83c7dcdfec974c95f26
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2022-50036

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-06-18

Modified 2025-11-13

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-50036?

CVE-2022-50036 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 4.18 onward and has been patched in 5.10.138, 5.15.63, 5.19.4 and others. CVE-2022-50036 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50036?

CVE-2022-50036 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-2022-50036?

Yes — CVE-2022-50036 has been patched. Fixed versions include 5.10.138, 5.15.63, 5.19.4 and others. If you are running Linux kernel 4.18 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50036 actively exploited?

No — CVE-2022-50036 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.