U.S. flag   An official website of the United States government
Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock (Dot gov) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2022-50288 Detail

Description

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to [email protected].

URL Source(s) Tag(s)
https://git.kernel.org/stable/c/13a7c8964afcd8ca43c0b6001ebb0127baa95362 kernel.org Patch 
https://git.kernel.org/stable/c/36999236f0b12d5de21a6f40e93b570727b9ceb2 kernel.org Patch 
https://git.kernel.org/stable/c/513787ff9a331b461115e8a145a983d650a84fcb kernel.org Patch 
https://git.kernel.org/stable/c/8df1dc04ce0e4c03b51a756749c250a9cb17d707 kernel.org Patch 
https://git.kernel.org/stable/c/8f97eeb02a553cdc78c83a0596448a370e1518c4 kernel.org Patch 
https://git.kernel.org/stable/c/95df720e64a6409d8152827a776c43f615e3321a kernel.org Patch 
https://git.kernel.org/stable/c/a2a694e6edbdb3efb34e1613a31fdcf6cf444a55 kernel.org Patch 
https://git.kernel.org/stable/c/d12a7510293d3370b234b0b7c5eda33e58786768 kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-416 Use After Free cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2022-50288
NVD Published Date:
09/15/2025
NVD Last Modified:
12/03/2025
Source:
kernel.org