CVE-2022-50783
Published Dec 24, 2025
Modified Apr 15, 2026
Description
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.
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References
Other References
https://git.kernel.org/stable/c/092953f3c4cd65f88b27b87a922f6c725f34ee04
https://git.kernel.org/stable/c/1922ea6b0ae2ea0c9a09be0eafafe1cd1069d259
https://git.kernel.org/stable/c/6eb02c596ec02e5897ae377e065cb7df55337a96
https://git.kernel.org/stable/c/bd5dc96fea4edd16d2e22f41b4dd50a4cfbeb919
https://git.kernel.org/stable/c/d3295fee3c756ece33ac0d935e172e68c0a4161b
Frequently Asked Questions
What is CVE-2022-50783? +
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.
How do I check if I'm vulnerable to CVE-2022-50783? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.