What is CVE-2022-50186?

CVE-2022-50186 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 5.17 onward and patched in 5.18.18, 5.19.2 and 6.0. CVE-2022-50186 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-50186?

CVE-2022-50186 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-2022-50186?

Yes, CVE-2022-50186 has been patched. Fixed versions include 5.18.18, 5.19.2 and 6.0. If you are running Linux kernel 5.17 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-50186 actively exploited?

CVE-2022-50186 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2022-50186

Medium

In the Linux kernel, the following vulnerability has been resolved: ath11k: fix missing skb drop on htc_tx_completion error On htc_tx_completion error the skb is not dropped. This is wrong since the completion_handler logic expect the skb to be consumed anyway even when an error is triggered. Not freeing the skb on error is a memory leak since the skb won't be freed anywere else. Correctly free the packet on eid >= ATH11K_HTC_EP_COUNT before returning. Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.5.0.1-01208-QCAHKSWPL_SILICONZ-1

Package Linux Kernel

Published 2025-06-18

Last modified 2025-11-19

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-401

CVE-2022-50186 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.17 and later are affected. Fixed in 5.18.18, 5.19.2, 6.0 and their respective stable series.

Affected from

≥ 5.17

Fixed in

✓ 5.18.18 5.18.x ✓ 5.19.2 5.19.x ✓ 6.0

References

3 total

Kernel Git
https://git.kernel.org/stable/c/1f1483361585ae7556492f50f83f038bbdf8c294

Patch
Kernel Git
https://git.kernel.org/stable/c/dda25326839d6e6b1fe59e79616149e44ea4eaa4

Patch
Kernel Git
https://git.kernel.org/stable/c/e5646fe3b7ef739c392e59da7db6adf5e1fdef42

Patch

Details

CVE ID CVE-2022-50186

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-06-18

Modified 2025-11-19

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-50186?

CVE-2022-50186 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 5.17 onward and has been patched in 5.18.18, 5.19.2 and 6.0. CVE-2022-50186 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-50186?

CVE-2022-50186 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-2022-50186?

Yes. CVE-2022-50186 has been patched. Fixed versions include 5.18.18, 5.19.2 and 6.0. If you are running Linux kernel 5.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-50186 actively exploited?

No. CVE-2022-50186 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.