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sctp: fix erroneous inc of snmp SctpFragUsrMsgs 

Currently it is incrementing SctpFragUsrMsgs when the user message size
is of the exactly same size as the maximum fragment size, which is wrong.

The fix is to increment it only when user message is bigger than the
maximum fragment size.

Fixes: bfd2e4b873 ("sctp: refactor sctp_datamsg_from_user")
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marcelo Ricardo Leitner 2018-06-20 12:47:52 -03:00 committed by David S. Miller
parent 9262478220
commit fedb1bd3d2
1 changed files with 3 additions and 1 deletions
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4
net/sctp/chunk.c
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@ -237,7 +237,9 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
/* Account for a different sized first fragment */
if (msg_len >= first_len) {
msg->can_delay = 0;
SCTP_INC_STATS(sock_net(asoc->base.sk), SCTP_MIB_FRAGUSRMSGS);
if (msg_len > first_len)
SCTP_INC_STATS(sock_net(asoc->base.sk),
SCTP_MIB_FRAGUSRMSGS);
} else {
/* Which may be the only one... */
first_len = msg_len;