Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <[email protected]>:
On Wed, 20 May 2026 00:56:36 +0800 you wrote:
> vsock_poll() reads vsk->peer_shutdown before taking the socket lock
> to set EPOLLHUP and EPOLLRDHUP, then reads it again after taking
> the lock to report EOF readability. A shutdown packet can update
> peer_shutdown while poll is waiting for the lock, so one poll invocation
> can report EOF readability without the corresponding HUP/RDHUP bits.
>
> For connectible sockets, take one peer_shutdown snapshot after
> lock_sock() and use it for all peer-shutdown-derived poll bits. For
> datagram sockets, which do not take lock_sock() in poll(), take one
> lockless READ_ONCE() snapshot and pair it with WRITE_ONCE() on the
> writer side.
>
> [...]
Here is the summary with links:
- [net,v2] vsock: keep poll shutdown state consistent
https://git.kernel.org/netdev/net/c/aae9d8a5528b
You are awesome, thank you!
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