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sctp: do not mark sk dumped when inet_sctp_diag_fill returns err

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sctp_diag would not actually dump out sk/asoc if inet_sctp_diag_fill
returns err, in which case it shouldn't mark sk dumped by setting
cb->args[3] as 1 in sctp_sock_dump().

Otherwise, it could cause some asocs to have no parent's sk dumped
in 'ss --sctp'.

So this patch is to not set cb->args[3] when inet_sctp_diag_fill()
returns err in sctp_sock_dump().

Fixes: 8f840e47f1 ("sctp: add the sctp_diag.c file")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2017-09-15 11:02:48 +08:00 committed by David S. Miller
parent d25adbeb0c
commit 8c7c19a55e
1 changed files with 0 additions and 1 deletions
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net/sctp/sctp_diag.c
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@ -309,7 +309,6 @@ static int sctp_sock_dump(struct sctp_transport *tsp, void *p)
cb->nlh->nlmsg_seq,
NLM_F_MULTI, cb->nlh,
commp->net_admin) < 0) {
cb->args[3] = 1;
err = 1;
goto release;
}