netdev - Re: [PATCH bpf-next v2] bpf: use VM_MAP instead of VM

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Date:   Thu, 03 Feb 2022 07:30:09 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Hou Tao <hotforest@...il.com>
Cc:     daniel@...earbox.net, ast@...nel.org, kafai@...com, yhs@...com,
        andrii@...nel.org, davem@...emloft.net, kuba@...nel.org,
        john.fastabend@...il.com, netdev@...r.kernel.org,
        bpf@...r.kernel.org, houtao1@...wei.com,
        syzbot+5ad567a418794b9b5983@...kaller.appspotmail.com
Subject: Re: [PATCH bpf-next v2] bpf: use VM_MAP instead of VM_ALLOC for ringbuf

Hello:

This patch was applied to bpf/bpf.git (master)
by Andrii Nakryiko <andrii@...nel.org>:

On Wed,  2 Feb 2022 14:01:58 +0800 you wrote:
> After commit 2fd3fb0be1d1 ("kasan, vmalloc: unpoison VM_ALLOC pages
> after mapping"), non-VM_ALLOC mappings will be marked as accessible
> in __get_vm_area_node() when KASAN is enabled. But now the flag for
> ringbuf area is VM_ALLOC, so KASAN will complain out-of-bound access
> after vmap() returns. Because the ringbuf area is created by mapping
> allocated pages, so use VM_MAP instead.
> 
> [...]

Here is the summary with links:
  - [bpf-next,v2] bpf: use VM_MAP instead of VM_ALLOC for ringbuf
    https://git.kernel.org/bpf/bpf/c/b293dcc473d2

You are awesome, thank you!
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