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| author | Song Liu <songliubraving@fb.com> | 2017-12-14 17:17:56 -0800 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2017-12-15 14:34:36 +0100 |
| commit | 2d17d8d79e77ff3f1b35b87522fc72fa562260ff (patch) | |
| tree | d21c62dc68e76e58c452fd2a04a6a0883227742e /net | |
| parent | 8c8f67a46f2bf33556ad12a1971734047b60831a (diff) | |
| download | linux-2d17d8d79e77ff3f1b35b87522fc72fa562260ff.tar.gz linux-2d17d8d79e77ff3f1b35b87522fc72fa562260ff.tar.bz2 linux-2d17d8d79e77ff3f1b35b87522fc72fa562260ff.zip | |
xdp: linearize skb in netif_receive_generic_xdp()
In netif_receive_generic_xdp(), it is necessary to linearize all
nonlinear skb. However, in current implementation, skb with
troom <= 0 are not linearized. This patch fixes this by calling
skb_linearize() for all nonlinear skb.
Fixes: de8f3a83b0a0 ("bpf: add meta pointer for direct access")
Signed-off-by: Song Liu <songliubraving@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/core/dev.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index f47e96b62308..01ee854454a8 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -3904,7 +3904,7 @@ static u32 netif_receive_generic_xdp(struct sk_buff *skb, hroom > 0 ? ALIGN(hroom, NET_SKB_PAD) : 0, troom > 0 ? troom + 128 : 0, GFP_ATOMIC)) goto do_drop; - if (troom > 0 && __skb_linearize(skb)) + if (skb_linearize(skb)) goto do_drop; } |