From: patchwork-bot+netdevbpf@kernel.org
To: Breno Leitao <leitao@debian.org>
Cc: courmisch@gmail.com, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, horms@kernel.org,
remi.denis-courmont@nokia.com, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, kernel-team@meta.com,
stable@vger.kernel.org
Subject: Re: [PATCH net] phonet: pep: fix use-after-free in pep_get_sb()
Date: Thu, 23 Jul 2026 17:30:09 +0000 [thread overview]
Message-ID: <178482780964.2797885.9364408026538103530.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260721-phonet_get_sb_uaf-v1-1-95fd7881cc4e@debian.org>
Hello:
This patch was applied to netdev/net.git (main)
by Jakub Kicinski <kuba@kernel.org>:
On Tue, 21 Jul 2026 01:58:45 -0700 you wrote:
> pep_get_sb() doesn't consider that pskb_may_pull() might have relocated
> the skb data, and continue to access the older pointer, causing UAF.
>
> Reproduced under KASAN:
>
> BUG: KASAN: slab-use-after-free in pep_get_sb+0x234/0x3b0
> Read of size 1 at addr ff11000105510f50 by task repro/157
> pep_get_sb+0x234/0x3b0
> pipe_handler_do_rcv+0x5f7/0xa10
> pep_do_rcv+0x203/0x410
> __sk_receive_skb+0x471/0x4a0
> phonet_rcv+0x5b3/0x6c0
> __netif_receive_skb+0xcc/0x1d0
>
> [...]
Here is the summary with links:
- [net] phonet: pep: fix use-after-free in pep_get_sb()
https://git.kernel.org/netdev/net/c/0f71f852a96a
You are awesome, thank you!
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prev parent reply other threads:[~2026-07-23 17:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-21 8:58 [PATCH net] phonet: pep: fix use-after-free in pep_get_sb() Breno Leitao
2026-07-23 17:30 ` patchwork-bot+netdevbpf [this message]
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