What is CVE-2022-50746?

CVE-2022-50746 is a High severity Linux kernel vulnerability with a CVSS score of 8.4 out of 10, affecting Linux kernel versions from 4.19 onward and patched in 6.0.16, 6.1.2 and 6.2. CVE-2022-50746 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50746?

CVE-2022-50746 has a CVSS score of 8.4 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2022-50746?

Yes, CVE-2022-50746 has been patched. Fixed versions include 6.0.16, 6.1.2 and 6.2. If you are running Linux kernel 4.19 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50746 actively exploited?

CVE-2022-50746 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2022-50746

High

In the Linux kernel, the following vulnerability has been resolved: erofs: validate the extent length for uncompressed pclusters syzkaller reported a KASAN use-after-free: https://syzkaller.appspot.com/bug?extid=2ae90e873e97f1faf6f2 The referenced fuzzed image actually has two issues: - m_pa == 0 as a non-inlined pcluster; - The logical length is longer than its physical length. The first issue has already been addressed. This patch addresses the second issue by checking the extent length validity.

Package Linux Kernel

Published 2025-12-24

Last modified 2026-08-04

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

8.4

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Affected versions

Linux kernel versions 4.19 and later are affected. Fixed in 6.0.16, 6.1.2, 6.2 and their respective stable series.

Affected from

≥ 4.19

Fixed in

✓ 6.0.16 6.0.x ✓ 6.1.2 6.1.x ✓ 6.2

References

3 total

Details

CVE ID CVE-2022-50746

Severity High

CVSS score 8.4 / 10

CVSS version 3.1

Published 2025-12-24

Modified 2026-08-04

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-50746?

CVE-2022-50746 is a High severity Linux kernel vulnerability with a CVSS score of 8.4 out of 10 . It affects Linux kernel versions from 4.19 onward and has been patched in 6.0.16, 6.1.2 and 6.2. CVE-2022-50746 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50746?

CVE-2022-50746 has a CVSS score of 8.4 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2022-50746?

Yes. CVE-2022-50746 has been patched. Fixed versions include 6.0.16, 6.1.2 and 6.2. If you are running Linux kernel 4.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50746 actively exploited?

No. CVE-2022-50746 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.