What is CVE-2022-50288?

CVE-2022-50288 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Use After Free flaw (CWE-416), affecting Linux kernel versions from 3.14 onward and patched in 4.14.303, 4.19.270, 5.4.229 and others. CVE-2022-50288 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50288?

CVE-2022-50288 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-2022-50288?

Yes, CVE-2022-50288 has been patched. Fixed versions include 4.14.303, 4.19.270, 5.4.229 and others. If you are running Linux kernel 3.14 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50288 actively exploited?

CVE-2022-50288 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-2022-50288

Medium

In the Linux kernel, the following vulnerability has been resolved: qlcnic: prevent ->dcb use-after-free on qlcnic_dcb_enable() failure adapter->dcb would get silently freed inside qlcnic_dcb_enable() in case qlcnic_dcb_attach() would return an error, which always happens under OOM conditions. This would lead to use-after-free because both of the existing callers invoke qlcnic_dcb_get_info() on the obtained pointer, which is potentially freed at that point. Propagate errors from qlcnic_dcb_enable(), and instead free the dcb pointer at callsite using qlcnic_dcb_free(). This also removes the now unused qlcnic_clear_dcb_ops() helper, which was a simple wrapper around kfree() also causing memory leaks for partially initialized dcb. Found by Linux Verification Center (linuxtesting.org) with the SVACE static analysis tool.

Package Linux Kernel

Published 2025-09-15

Last modified 2025-12-03

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-416

CVE-2022-50288 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 3.14 and later are affected. Fixed in 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.87, 6.0.19, 6.1.5, 6.2 and their respective stable series.

Affected from

≥ 3.14

Fixed in

✓ 4.14.303 4.14.x ✓ 4.19.270 4.19.x ✓ 5.4.229 5.4.x ✓ 5.10.163 5.10.x ✓ 5.15.87 5.15.x ✓ 6.0.19 6.0.x ✓ 6.1.5 6.1.x ✓ 6.2

References

8 total

Kernel Git
https://git.kernel.org/stable/c/13a7c8964afcd8ca43c0b6001ebb0127baa95362

Patch
Kernel Git
https://git.kernel.org/stable/c/36999236f0b12d5de21a6f40e93b570727b9ceb2

Patch
Kernel Git
https://git.kernel.org/stable/c/513787ff9a331b461115e8a145a983d650a84fcb

Patch
Kernel Git
https://git.kernel.org/stable/c/8df1dc04ce0e4c03b51a756749c250a9cb17d707

Patch
Kernel Git
https://git.kernel.org/stable/c/8f97eeb02a553cdc78c83a0596448a370e1518c4

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2022-50288

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-09-15

Modified 2025-12-03

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-50288?

CVE-2022-50288 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Use After Free flaw (CWE-416) . It affects Linux kernel versions from 3.14 onward and has been patched in 4.14.303, 4.19.270, 5.4.229 and others. CVE-2022-50288 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50288?

CVE-2022-50288 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-2022-50288?

Yes. CVE-2022-50288 has been patched. Fixed versions include 4.14.303, 4.19.270, 5.4.229 and others. If you are running Linux kernel 3.14 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50288 actively exploited?

No. CVE-2022-50288 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.