From: patchwork-bot+bluetooth@kernel.org
To: Samuel Moelius <sam.moelius@trailofbits.com>
Cc: marcel@holtmann.org, luiz.dentz@gmail.com,
linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Bluetooth: L2CAP: validate connectionless PSM length
Date: Wed, 10 Jun 2026 15:40:18 +0000 [thread overview]
Message-ID: <178110601888.3101197.11028793216503319042.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20260608235705.1233510.fe2269cf0103.bluetooth-l2cap-connless-short-pdu-oob@trailofbits.com>
Hello:
This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@intel.com>:
On Mon, 8 Jun 2026 23:57:05 +0000 you wrote:
> Connectionless L2CAP frames carry a two-byte PSM at the start of the
> payload. l2cap_recv_frame() currently reads that PSM unconditionally
> after validating only the outer L2CAP length.
>
> A malformed connectionless frame with a zero- or one-byte payload can
> therefore make the parser read beyond the advertised skb payload and use
> tailroom bytes as part of the PSM. A VHCI-backed QEMU reproducer
> injected a one-byte connectionless payload and reached the unchecked
> read.
>
> [...]
Here is the summary with links:
- Bluetooth: L2CAP: validate connectionless PSM length
https://git.kernel.org/bluetooth/bluetooth-next/c/801f756504d1
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
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prev parent reply other threads:[~2026-06-10 15:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-08 23:57 [PATCH] Bluetooth: L2CAP: validate connectionless PSM length Samuel Moelius
2026-06-09 1:59 ` bluez.test.bot
2026-06-09 2:50 ` Victor Yeo
2026-06-10 15:40 ` patchwork-bot+bluetooth [this message]
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