What is CVE-2022-50306?

CVE-2022-50306 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, classified as a Out-of-bounds Read flaw (CWE-125), affecting Linux kernel versions from 5.10 onward and patched in 5.15.87, 6.0.6 and 6.1. CVE-2022-50306 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50306?

CVE-2022-50306 has a CVSS score of 7.1 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.

Is there a patch available for CVE-2022-50306?

Yes, CVE-2022-50306 has been patched. Fixed versions include 5.15.87, 6.0.6 and 6.1. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50306 actively exploited?

CVE-2022-50306 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/125.html

CVE-2022-50306

High

In the Linux kernel, the following vulnerability has been resolved: ext4: fix potential out of bound read in ext4_fc_replay_scan() For scan loop must ensure that at least EXT4_FC_TAG_BASE_LEN space. If remain space less than EXT4_FC_TAG_BASE_LEN which will lead to out of bound read when mounting corrupt file system image. ADD_RANGE/HEAD/TAIL is needed to add extra check when do journal scan, as this three tags will read data during scan, tag length couldn't less than data length which will read.

Package Linux Kernel

Published 2025-09-15

Last modified 2025-12-04

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-125

CVE-2022-50306 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.10 and later are affected. Fixed in 5.15.87, 6.0.6, 6.1 and their respective stable series.

Affected from

≥ 5.10

Fixed in

✓ 5.15.87 5.15.x ✓ 6.0.6 6.0.x ✓ 6.1

References

The following references provide additional information about CVE-2022-50306 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/1b45cc5c7b920fd8bf72e5a888ec7abeadf41e09
Patch
Kernel patch commit
https://git.kernel.org/stable/c/6969367c1500c15eddc38fda12f6d15518ad6d03
Patch
Kernel patch commit
https://git.kernel.org/stable/c/f234294812c9b68d603650d28743eafb718e7ad5
Patch

Details

CVE ID CVE-2022-50306

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2025-09-15

Modified 2025-12-04

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-50306?

CVE-2022-50306 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 5.10 onward and has been patched in 5.15.87, 6.0.6 and 6.1. CVE-2022-50306 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50306?

CVE-2022-50306 has a CVSS score of 7.1 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H.
Is there a patch available for CVE-2022-50306?

Yes — CVE-2022-50306 has been patched. Fixed versions include 5.15.87, 6.0.6 and 6.1. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50306 actively exploited?

No — CVE-2022-50306 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. View CWE-125 on MITRE CWE →