Re: [PATCH net v2] net/smc: don't spin in smc_rx_recvmsg() while a pipe holds spliced data

[patchwork-bot+netdevbpf]

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@xxxxxxxxxx>:

On Thu, 29 Oct 2026 03:03:33 -0500 you wrote:
> From: Bryam Vargas <hexlabsecurity@xxxxxxxxx>
> 
> While bytes spliced off the RMB are still in a pipe, recvmsg() waits
> for the pipe to release them before it copies the data behind them.
> The path to that wait skips the timeout and signal checks, and
> smc_rx_wait() returns at once on RCV_SHUTDOWN. With a signal pending,
> after SHUT_RD, or once the peer closes or shuts down writing,
> recvmsg() spins on a CPU until the pipe is drained, and SIGKILL cannot
> stop it. MSG_DONTWAIT and an expired SO_RCVTIMEO wait there too
> instead of returning -EAGAIN.
> 
> [...]

Here is the summary with links:
  - [net,v2] net/smc: don't spin in smc_rx_recvmsg() while a pipe holds spliced data
    https://git.kernel.org/netdev/net/c/8288ba942cfd

You are awesome, thank you!
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