Bug 2425114 (CVE-2022-50783) - CVE-2022-50783 kernel: mptcp: use proper req destructor for IPv6
Summary: CVE-2022-50783 kernel: mptcp: use proper req destructor for IPv6
Keywords:
Status: NEW
Alias: CVE-2022-50783
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-24 14:03 UTC by OSIDB Bzimport
Modified: 2025-12-25 01:36 UTC (History)
0 users

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Description OSIDB Bzimport 2025-12-24 14:03:55 UTC 
In the Linux kernel, the following vulnerability has been resolved:

mptcp: use proper req destructor for IPv6

Before, only the destructor from TCP request sock in IPv4 was called
even if the subflow was IPv6.

It is important to use the right destructor to avoid memory leaks with
some advanced IPv6 features, e.g. when the request socks contain
specific IPv6 options.
Comment 1 Alexander B 2025-12-25 01:32:02 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025122402-CVE-2022-50783-3109@gregkh/T
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