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authorXin Long <lucien.xin@gmail.com>2016-02-28 05:33:11 +0300
committerDavid S. Miller <davem@davemloft.net>2016-03-02 01:35:44 +0300
commit3d73e8fac8f84942f15307d6d9cb1dba843d3fb2 (patch)
tree3daec4bf3762a03bff5e719708544d288db36942 /net
parent40b4f0fd74e46c017814618d67ec9127ff20f157 (diff)
downloadlinux-3d73e8fac8f84942f15307d6d9cb1dba843d3fb2.tar.xz
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.c10
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;
}