Re: [PATCH net v2] sctp: revalidate output stream after association connect wait

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni [off-list ref]:

On Wed,  7 Oct 2026 12:57:39 +0900 you wrote:

When message interleaving is enabled, the first send waits for association
establishment before building its data chunks.  The wait drops the socket
lock, and handshake processing can reduce the output stream count to the
peer-advertised inbound stream count.  sctp_stream_init() then frees the
extension of every removed stream.

The sender resumes with the stream that it checked before the wait.  If the
peer removed that stream, sctp_outq_tail() later dereferences its NULL
extension.  Fatal-oops policies then panic the host.

[...]

Here is the summary with links:
  - [net,v2] sctp: revalidate output stream after association connect wait
    https://git.kernel.org/netdev/net/c/b7ad72414c67

You are awesome, thank you!
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