Hello:
This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>:
On Fri, 18 Nov 2022 15:01:47 -0500 you wrote:
> By keep sending L2CAP_CONF_REQ packets, chan->num_conf_rsp increases
> multiple times and eventually it will wrap around the maximum number
> (i.e., 255).
> This patch prevents this by adding a boundary check with
> L2CAP_MAX_CONF_RSP
>
> Btmon log:
> Bluetooth monitor ver 5.64
> = Note: Linux version 6.1.0-rc2 (x86_64) 0.264594
> = Note: Bluetooth subsystem version 2.22 0.264636
> @ MGMT Open: btmon (privileged) version 1.22 {0x0001} 0.272191
> = New Index: 00:00:00:00:00:00 (Primary,Virtual,hci0) [hci0] 13.877604
> @ RAW Open: 9496 (privileged) version 2.22 {0x0002} 13.890741
> = Open Index: 00:00:00:00:00:00 [hci0] 13.900426
> (...)
> > ACL Data RX: Handle 200 flags 0x00 dlen 1033 #32 [hci0] 14.273106
> invalid packet size (12 != 1033)
> 08 00 01 00 02 01 04 00 01 10 ff ff ............
> > ACL Data RX: Handle 200 flags 0x00 dlen 1547 #33 [hci0] 14.273561
> invalid packet size (14 != 1547)
> 0a 00 01 00 04 01 06 00 40 00 00 00 00 00 ........@.....
> > ACL Data RX: Handle 200 flags 0x00 dlen 2061 #34 [hci0] 14.274390
> invalid packet size (16 != 2061)
> 0c 00 01 00 04 01 08 00 40 00 00 00 00 00 00 04 ........@.......
> > ACL Data RX: Handle 200 flags 0x00 dlen 2061 #35 [hci0] 14.274932
> invalid packet size (16 != 2061)
> 0c 00 01 00 04 01 08 00 40 00 00 00 07 00 03 00 ........@.......
> = bluetoothd: Bluetooth daemon 5.43 14.401828
> > ACL Data RX: Handle 200 flags 0x00 dlen 1033 #36 [hci0] 14.275753
> invalid packet size (12 != 1033)
> 08 00 01 00 04 01 04 00 40 00 00 00 ........@...
>
> [...]
Here is the summary with links:
- Bluetooth: L2CAP: Fix u8 overflow
https://git.kernel.org/bluetooth/bluetooth-next/c/ae4569813a6e
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
