Re: [PATCH net] Revert "net/smc: Introduce TCP ULP support"

patchwork-bot+netdevbpf
2026-01-31T03:40:12Z

Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@kernel.org>:

On Wed, 28 Jan 2026 13:54:52 +0800 you wrote:
> This reverts commit d7cd421da9da2cc7b4d25b8537f66db5c8331c40.
>
> As reported by Al Viro, the TCP ULP support for SMC is fundamentally
> broken. The implementation attempts to convert an active TCP socket
> into an SMC socket by modifying the underlying `struct file`, dentry,
> and inode in-place, which violates core VFS invariants that assume
> these structures are immutable for an open file, creating a risk of
> use after free errors and general system instability.
>
> [...]

Here is the summary with links:
- [net] Revert "net/smc: Introduce TCP ULP support"
https://git.kernel.org/netdev/net-next/c/df31a6b0a305

You are awesome, thank you!
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