CVE-2026-68161
Last modified
CVE-2026-68161 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: sctp: close UDP tunnel sockets during netns teardown proc_sctp_do_udp_port() starts per-net SCTP UDP tunneling sockets when net.sctp.udp_port is set, and stops/restarts them when the sysctl value changes. The netns exit path does not stop these sockets, so a namespace can be torn down while its SCTP UDP tunnel sockets are still installed. Close the UDP tunnel sockets from sctp_ctrlsock_exit() after unregistering the per-net sysctl table.
Description
In the Linux kernel, the following vulnerability has been resolved: sctp: close UDP tunnel sockets during netns teardown proc_sctp_do_udp_port() starts per-net SCTP UDP tunneling sockets when net.sctp.udp_port is set, and stops/restarts them when the sysctl value changes. The netns exit path does not stop these sockets, so a namespace can be torn down while its SCTP UDP tunnel sockets are still installed. Close the UDP tunnel sockets from sctp_ctrlsock_exit() after unregistering the per-net sysctl table. This prevents new sysctl writes from racing in while the sockets are being released, and closes the sockets before the control socket is destroyed.
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 046c052b475e7119b6a30e3483e2888fc606a2f8, < c6eb2d615210b80339548ab07c0230edaab9a6c7; >= 046c052b475e7119b6a30e3483e2888fc606a2f8, < 8ff78591d309c50a4fdab683b68dd8d512a270dd; >= 046c052b475e7119b6a30e3483e2888fc606a2f8, < 3bf0e349cbb4f975f35eb22753acc346b89c66a0; >= 046c052b475e7119b6a30e3483e2888fc606a2f8, < 37ff9794be48d0caa37687e04d09675f9c849121; >= 046c052b475e7119b6a30e3483e2888fc606a2f8, < ffb2bd7ade36ec4da32c46a6eddbf4515316d08c |
| Linux | Linux | 5.11 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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