bpf: sockmap, consume_skb in close path

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Currently, when a sock is closed and the bpf_tcp_close() callback is
used we remove memory but do not free the skb. Call consume_skb() if
the skb is attached to the buffer.

Reported-by: syzbot+d464d2c20c717ef5a6a8@syzkaller.appspotmail.com
Fixes: 1aa12bdf1b ("bpf: sockmap, add sock close() hook to remove socks")
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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John Fastabend 2018-07-05 08:50:10 -07:00 • committed by Alexei Starovoitov

parent 99ba2b5aba

commit 7ebc14d507

1 changed files with 4 additions and 1 deletions

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kernel/bpf/sockmap.c

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