netdev - Re: [PATCH bpf-next 0/2] bpf: fix kernel page fault in lpm map trie_get_next

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Message-ID: <20180127011054.xlet3kkjmm2nf6a2@ast-mbp>
Date:   Fri, 26 Jan 2018 17:10:56 -0800
From:   Alexei Starovoitov <alexei.starovoitov@...il.com>
To:     Yonghong Song <yhs@...com>
Cc:     ast@...com, daniel@...earbox.net, edumazet@...gle.com,
        netdev@...r.kernel.org, kernel-team@...com
Subject: Re: [PATCH bpf-next 0/2] bpf: fix kernel page fault in lpm map
 trie_get_next_key

On Fri, Jan 26, 2018 at 03:06:06PM -0800, Yonghong Song wrote:
> A kernel page fault which happens in lpm map trie_get_next_key is reported
> by syzbot and Eric. The issue was introduced by commit b471f2f1de8b
> ("bpf: implement MAP_GET_NEXT_KEY command for LPM_TRIE map").
> Patch #1 fixed the issue in the kernel and patch #2 adds a multithreaded
> test case in tools/testing/selftests/bpf/test_lpm_map.

Applied to bpf-next, thank you Yonghong!