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| author | Xin Long <lucien.xin@gmail.com> | 2016-02-28 03:33:11 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-01 23:35:44 +0100 |
| commit | 3d73e8fac8f84942f15307d6d9cb1dba843d3fb2 (patch) | |
| tree | 3daec4bf3762a03bff5e719708544d288db36942 /net | |
| parent | sctp: lack the check for ports in sctp_v6_cmp_addr (diff) | |
| download | linux-3d73e8fac8f84942f15307d6d9cb1dba843d3fb2.tar.xz linux-3d73e8fac8f84942f15307d6d9cb1dba843d3fb2.zip | |
sctp: sctp_remaddr_seq_show use the wrong variable to dump transport info
Now in sctp_remaddr_seq_show(), we use variable *tsp to get the param *v.
but *tsp is also used to traversal transport_addr_list, which will cover
the previous value, and make sctp_transport_put work on the wrong transport.
So fix it by adding a new variable to get the param *v.
Fixes: fba4c330c5b9 ("sctp: hold transport before we access t->asoc in sctp proc")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sctp/proc.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/net/sctp/proc.c b/net/sctp/proc.c index ded7d931a6a5..963dffcc2618 100644 --- a/net/sctp/proc.c +++ b/net/sctp/proc.c @@ -482,7 +482,7 @@ static void sctp_remaddr_seq_stop(struct seq_file *seq, void *v) static int sctp_remaddr_seq_show(struct seq_file *seq, void *v) { struct sctp_association *assoc; - struct sctp_transport *tsp; + struct sctp_transport *transport, *tsp; if (v == SEQ_START_TOKEN) { seq_printf(seq, "ADDR ASSOC_ID HB_ACT RTO MAX_PATH_RTX " @@ -490,10 +490,10 @@ static int sctp_remaddr_seq_show(struct seq_file *seq, void *v) return 0; } - tsp = (struct sctp_transport *)v; - if (!sctp_transport_hold(tsp)) + transport = (struct sctp_transport *)v; + if (!sctp_transport_hold(transport)) return 0; - assoc = tsp->asoc; + assoc = transport->asoc; list_for_each_entry_rcu(tsp, &assoc->peer.transport_addr_list, transports) { @@ -546,7 +546,7 @@ static int sctp_remaddr_seq_show(struct seq_file *seq, void *v) seq_printf(seq, "\n"); } - sctp_transport_put(tsp); + sctp_transport_put(transport); return 0; } |