From: patchwork-bot+netdevbpf@kernel•org
To: David Howells <dhowells@redhat•com>
Cc: netdev@vger•kernel.org, faith@zellic•io, pumpkin@devco•re,
marc.dionne@auristor•com, niro@wiz•io, w@1wt•eu,
edumazet@google•com, davem@davemloft•net, kuba@kernel•org,
pabeni@redhat•com, horms@kernel•org,
linux-afs@lists•infradead.org, security@kernel•org,
stable@kernel•org, linux-kernel@vger•kernel.org
Subject: Re: [PATCH net v2] rxrpc: Fix recvmsg() unconditional requeue
Date: Mon, 19 Jan 2026 18:10:08 +0000 [thread overview]
Message-ID: <176884620879.85277.2855458086448073147.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <95163.1768428203@warthog.procyon.org.uk>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel•org>:
On Wed, 14 Jan 2026 22:03:23 +0000 you wrote:
> If rxrpc_recvmsg() fails because MSG_DONTWAIT was specified but the call at
> the front of the recvmsg queue already has its mutex locked, it requeues
> the call - whether or not the call is already queued. The call may be on
> the queue because MSG_PEEK was also passed and so the call was not dequeued
> or because the I/O thread requeued it.
>
> The unconditional requeue may then corrupt the recvmsg queue, leading to
> things like UAFs or refcount underruns.
>
> [...]
Here is the summary with links:
- [net,v2] rxrpc: Fix recvmsg() unconditional requeue
https://git.kernel.org/netdev/net/c/2c28769a51de
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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prev parent reply other threads:[~2026-01-19 18:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-14 22:03 [PATCH net v2] rxrpc: Fix recvmsg() unconditional requeue David Howells
2026-01-19 15:10 ` Simon Horman
2026-01-19 18:05 ` Jakub Kicinski
2026-01-19 18:07 ` Jakub Kicinski
2026-01-19 18:10 ` patchwork-bot+netdevbpf [this message]
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