Bug 2426207 (CVE-2022-50837) - CVE-2022-50837 kernel: net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path
Summary: CVE-2022-50837 kernel: net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021...
Keywords:
Status: NEW
Alias: CVE-2022-50837
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
unspecified
unspecified
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-30 13:16 UTC by OSIDB Bzimport
Modified: 2026-06-29 18:18 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)

Description OSIDB Bzimport 2025-12-30 13:16:29 UTC 
In the Linux kernel, the following vulnerability has been resolved:

net: dsa: tag_8021q: avoid leaking ctx on dsa_tag_8021q_register() error path

If dsa_tag_8021q_setup() fails, for example due to the inability of the
device to install a VLAN, the tag_8021q context of the switch will leak.
Make sure it is freed on the error path.
Comment 1 Alexander B 2025-12-31 01:27:55 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025123018-CVE-2022-50837-c470@gregkh/T
Note You need to log in before you can comment on or make changes to this bug.