From: patchwork-bot+netdevbpf@kernel.org
To: Cen Zhang (Microsoft) <blbllhy@gmail.com>
Cc: edumazet@google.com, ncardwell@google.com, davem@davemloft.net,
kuba@kernel.org, pabeni@redhat.com, kuniyu@google.com,
horms@kernel.org, matttbe@kernel.org, martineau@kernel.org,
geliang@kernel.org, yhs@fb.com, kafai@fb.com, andriin@fb.com,
ast@kernel.org, netdev@vger.kernel.org, mptcp@lists.linux.dev,
bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
AutonomousCodeSecurity@microsoft.com, xmei5@asu.edu,
tgopinath@linux.microsoft.com, kys@microsoft.com
Subject: Re: [PATCH net v3 0/2] tcp: fix use-after-free in do_tcp_getsockopt()
Date: Sat, 29 Aug 2026 05:30:10 +0000 [thread overview]
Message-ID: <178798141089.2932800.13873660526223105626.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <cover.1787870710.git.blbllhy@gmail.com>
Hello:
This series was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Thu, 27 Aug 2026 19:55:09 -0400 you wrote:
> From: "Cen Zhang (Microsoft Security FORGE Labs)" <blbllhy@gmail.com>
>
> do_tcp_getsockopt() has two lockless reads of icsk_ca_ops. Since BPF
> struct_ops congestion control made icsk_ca_ops point to dynamically
> allocated memory, a concurrent setsockopt(TCP_CONGESTION) can replace
> the pointer and free the old object while either reader is using it.
>
> [...]
Here is the summary with links:
- [net,v3,1/2] tcp: fix use-after-free in do_tcp_getsockopt(TCP_CONGESTION)
https://git.kernel.org/netdev/net/c/5271b79b7ad6
- [net,v3,2/2] tcp: fix use-after-free in do_tcp_getsockopt(TCP_CC_INFO)
https://git.kernel.org/netdev/net/c/385e474086c2
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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prev parent reply other threads:[~2026-08-29 5:31 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-27 23:55 [PATCH net v3 0/2] tcp: fix use-after-free in do_tcp_getsockopt() Cen Zhang (Microsoft)
2026-08-27 23:55 ` [PATCH net v3 1/2] tcp: fix use-after-free in do_tcp_getsockopt(TCP_CONGESTION) Cen Zhang (Microsoft)
2026-08-28 3:26 ` Jiayuan Chen
2026-08-28 9:41 ` Matthieu Baerts
2026-08-28 12:38 ` Breno Leitao
2026-08-28 13:02 ` Cen Zhang (Microsoft)
2026-08-28 14:17 ` Breno Leitao
2026-08-28 23:55 ` sashiko-bot
2026-08-27 23:55 ` [PATCH net v3 2/2] tcp: fix use-after-free in do_tcp_getsockopt(TCP_CC_INFO) Cen Zhang (Microsoft)
2026-08-28 3:14 ` Jiayuan Chen
2026-08-28 9:42 ` Matthieu Baerts
2026-08-28 1:05 ` [PATCH net v3 0/2] tcp: fix use-after-free in do_tcp_getsockopt() MPTCP CI
2026-08-29 5:30 ` patchwork-bot+netdevbpf [this message]
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