netdev - Re: [PATCH v3] net: hv_netvsc: Fix a warning triggered by memcpy in rndis

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Message-Id: <166582921603.1299.10791611158258198610.git-patchwork-notify@kernel.org>
Date:   Sat, 15 Oct 2022 10:20:16 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Cezar Bulinaru <cbulinaru@...il.com>
Cc:     pabeni@...hat.com, kys@...rosoft.com, haiyangz@...rosoft.com,
        wei.liu@...nel.org, decui@...rosoft.com, davem@...emloft.net,
        edumazet@...gle.com, kuba@...nel.org, linux-hyperv@...r.kernel.org,
        netdev@...r.kernel.org, mikelley@...rosoft.com
Subject: Re: [PATCH v3] net: hv_netvsc: Fix a warning triggered by memcpy in
 rndis_filter

Hello:

This patch was applied to netdev/net.git (master)
by David S. Miller <davem@...emloft.net>:

On Thu, 13 Oct 2022 22:45:03 -0400 you wrote:
> memcpy: detected field-spanning write (size 168) of single field "(void *)&request->response_msg + (sizeof(struct rndis_message) - sizeof(union rndis_message_container)) + sizeof(*req_id)" at drivers/net/hyperv/rndis_filter.c:338 (size 40)
> RSP: 0018:ffffc90000144de0 EFLAGS: 00010282
> RAX: 0000000000000000 RBX: ffff8881766b4000 RCX: 0000000000000000
> RDX: 0000000000000102 RSI: 0000000000009ffb RDI: 00000000ffffffff
> RBP: ffffc90000144e38 R08: 0000000000000000 R09: 00000000ffffdfff
> R10: ffffc90000144c48 R11: ffffffff82f56ac8 R12: ffff8881766b403c
> R13: 00000000000000a8 R14: ffff888100b75000 R15: ffff888179301d00
> FS:  0000000000000000(0000) GS:ffff8884d6280000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 000055f8b024c418 CR3: 0000000176548001 CR4: 00000000003706e0
> Call Trace:
>  <IRQ>
>  ? _raw_spin_unlock_irqrestore+0x27/0x50
>  netvsc_poll+0x556/0x940 [hv_netvsc]
>  __napi_poll+0x2e/0x170
>  net_rx_action+0x299/0x2f0
>  __do_softirq+0xed/0x2ef
>  __irq_exit_rcu+0x9f/0x110
>  irq_exit_rcu+0xe/0x20
>  sysvec_hyperv_callback+0xb0/0xd0
>  </IRQ>
>  <TASK>
>  asm_sysvec_hyperv_callback+0x1b/0x20
> RIP: 0010:native_safe_halt+0xb/0x10
> 
> [...]

Here is the summary with links:
  - [v3] net: hv_netvsc: Fix a warning triggered by memcpy in rndis_filter
    https://git.kernel.org/netdev/net/c/017e42540639

You are awesome, thank you!
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