[PATCH 5.2 113/135] sctp: fix memleak in sctp_send_reset_streams

From: Sasha Levin
Date: Thu Aug 22 2019 - 13:11:30 EST


From: zhengbin <zhengbin13@xxxxxxxxxx>

[ Upstream commit 6d5afe20397b478192ed8c38ec0ee10fa3aec649 ]

If the stream outq is not empty, need to kfree nstr_list.

Fixes: d570a59c5b5f ("sctp: only allow the out stream reset when the stream outq is empty")
Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: zhengbin <zhengbin13@xxxxxxxxxx>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@xxxxxxxxx>
Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx>
Signed-off-by: Jakub Kicinski <jakub.kicinski@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/sctp/stream.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/net/sctp/stream.c b/net/sctp/stream.c
index 25946604af85c..e83cdaa2ab765 100644
--- a/net/sctp/stream.c
+++ b/net/sctp/stream.c
@@ -316,6 +316,7 @@ int sctp_send_reset_streams(struct sctp_association *asoc,
nstr_list[i] = htons(str_list[i]);

if (out && !sctp_stream_outq_is_empty(stream, str_nums, nstr_list)) {
+ kfree(nstr_list);
retval = -EAGAIN;
goto out;
}
--
2.20.1