What is CVE-2022-50329?

CVE-2022-50329 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 5.15.86 onward and patched in 5.15.87, 6.0.17 and 6.1.3. CVE-2022-50329 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50329?

CVE-2022-50329 has a CVSS score of 7.8 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:H/A:H.

Is there a patch available for CVE-2022-50329?

Yes, CVE-2022-50329 has been patched. Fixed versions include 5.15.87, 6.0.17 and 6.1.3. If you are running Linux kernel 5.15.86 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50329 actively exploited?

CVE-2022-50329 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Use After Free (CWE-416)?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/416.html

CVE-2022-50329

High

In the Linux kernel, the following vulnerability has been resolved: block, bfq: fix uaf for bfqq in bfq_exit_icq_bfqq Commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'") will access 'bic->bfqq' in bic_set_bfqq(), however, bfq_exit_icq_bfqq() can free bfqq first, and then call bic_set_bfqq(), which will cause uaf. Fix the problem by moving bfq_exit_bfqq() behind bic_set_bfqq().

Package Linux Kernel

Published 2025-09-15

Last modified 2025-12-04

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-416

CVE-2022-50329 is a Use After Free vulnerability

What is Use After Free?

The product references memory after it has been freed, which may cause it to crash, use unexpected values, or execute code. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.15.86, 6.0.16, 6.1.2 and later are affected. Fixed in 5.15.87, 6.0.17, 6.1.3 and their respective stable series.

Affected from

≥ 5.15.86 ≥ 6.0.16 ≥ 6.1.2

Fixed in

✓ 5.15.87 5.15.x ✓ 6.0.17 6.0.x ✓ 6.1.3 6.1.x

References

5 total

Kernel Git
https://git.kernel.org/stable/c/1425f1bb5df5239021fd09ebc2a5e8070e705d36

Patch
Kernel Git
https://git.kernel.org/stable/c/1ed959fef5b1c6f1a7a3fbea543698c30ebd6678

Patch
Kernel Git
https://git.kernel.org/stable/c/246cf66e300b76099b5dbd3fdd39e9a5dbc53f02

Patch
Kernel Git
https://git.kernel.org/stable/c/7949b0df3dd9f4817ed4a4e989fa9ee81df6205f

Patch
Kernel Git
https://git.kernel.org/stable/c/cfe5b38c37720313eff0dec5517442c7ab3c9a20

Patch

Details

CVE ID CVE-2022-50329

Severity High

CVSS score 7.8 / 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-2022-50329?

CVE-2022-50329 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 5.15.86 onward and has been patched in 5.15.87, 6.0.17 and 6.1.3. CVE-2022-50329 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50329?

CVE-2022-50329 has a CVSS score of 7.8 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:H/A:H.
Is there a patch available for CVE-2022-50329?

Yes. CVE-2022-50329 has been patched. Fixed versions include 5.15.87, 6.0.17 and 6.1.3. If you are running Linux kernel 5.15.86 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50329 actively exploited?

No. CVE-2022-50329 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.