Re: [PATCH net,v3] tcp: fix a signed-integer-overflow bug in tcp_add_backlog()

From: patchwork-bot+netdevbpf
Date: Mon Oct 24 2022 - 12:12:08 EST


Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@xxxxxxxxxxxxx>:

On Fri, 21 Oct 2022 12:06:22 +0800 you wrote:
> The type of sk_rcvbuf and sk_sndbuf in struct sock is int, and
> in tcp_add_backlog(), the variable limit is caculated by adding
> sk_rcvbuf, sk_sndbuf and 64 * 1024, it may exceed the max value
> of int and overflow. This patch reduces the limit budget by
> halving the sndbuf to solve this issue since ACK packets are much
> smaller than the payload.
>
> [...]

Here is the summary with links:
- [net,v3] tcp: fix a signed-integer-overflow bug in tcp_add_backlog()
https://git.kernel.org/netdev/net/c/ec791d8149ff

You are awesome, thank you!
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