netdev - Re: [PATCH net] hsr: Fix uninit-value access in hsr_get

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Date: Thu, 14 Mar 2024 12:10:28 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Shigeru Yoshida <syoshida@...hat.com>
Cc: davem@...emloft.net, edumazet@...gle.com, kuba@...nel.org,
 pabeni@...hat.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
 syzbot+2ef3a8ce8e91b5a50098@...kaller.appspotmail.com
Subject: Re: [PATCH net] hsr: Fix uninit-value access in hsr_get_node()

Hello:

This patch was applied to netdev/net.git (main)
by Paolo Abeni <pabeni@...hat.com>:

On Wed, 13 Mar 2024 00:27:19 +0900 you wrote:
> KMSAN reported the following uninit-value access issue [1]:
> 
> =====================================================
> BUG: KMSAN: uninit-value in hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246
>  hsr_get_node+0xa2e/0xa40 net/hsr/hsr_framereg.c:246
>  fill_frame_info net/hsr/hsr_forward.c:577 [inline]
>  hsr_forward_skb+0xe12/0x30e0 net/hsr/hsr_forward.c:615
>  hsr_dev_xmit+0x1a1/0x270 net/hsr/hsr_device.c:223
>  __netdev_start_xmit include/linux/netdevice.h:4940 [inline]
>  netdev_start_xmit include/linux/netdevice.h:4954 [inline]
>  xmit_one net/core/dev.c:3548 [inline]
>  dev_hard_start_xmit+0x247/0xa10 net/core/dev.c:3564
>  __dev_queue_xmit+0x33b8/0x5130 net/core/dev.c:4349
>  dev_queue_xmit include/linux/netdevice.h:3134 [inline]
>  packet_xmit+0x9c/0x6b0 net/packet/af_packet.c:276
>  packet_snd net/packet/af_packet.c:3087 [inline]
>  packet_sendmsg+0x8b1d/0x9f30 net/packet/af_packet.c:3119
>  sock_sendmsg_nosec net/socket.c:730 [inline]
>  __sock_sendmsg net/socket.c:745 [inline]
>  __sys_sendto+0x735/0xa10 net/socket.c:2191
>  __do_sys_sendto net/socket.c:2203 [inline]
>  __se_sys_sendto net/socket.c:2199 [inline]
>  __x64_sys_sendto+0x125/0x1c0 net/socket.c:2199
>  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
>  do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83
>  entry_SYSCALL_64_after_hwframe+0x63/0x6b
> 
> [...]

Here is the summary with links:
  - [net] hsr: Fix uninit-value access in hsr_get_node()
    https://git.kernel.org/netdev/net/c/ddbec99f5857

You are awesome, thank you!
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