CVE-2025-21641 mptcp: sysctl: blackhole timeout: avoid using current->nsproxy

In the Linux kernel, the following vulnerability has been resolved: mptcp: sysctl: blackhole timeout: avoid using current-nsproxy As mentioned in the previous commit, using the 'net' structure via 'current' is not recommended for different reasons: - Inconsistency: getting info from the...

CVE-2025-21637

The provided Connected documents confirm CVE-2025-21637 concerns the Linux kernel SCTP sysctl handling of udp_port, where the code path uses current->nsproxy, risking incorrect netns context and potential null dereference. The issue is described as due to accessing net/ns data via the current ...