[PATCH] net/sctp: use memset avoid infoleaks

[cgel . zte]

From: Minghao Chi (CGEL ZTE) <chi.minghao@xxxxxxxxxx>

Use memset to initialize structs to preventing infoleaks
in sctp_auth_chunk_verify

Reported-by: Zeal Robot <zealci@xxxxxxxxxx>
Signed-off-by: Minghao Chi (CGEL ZTE) <chi.minghao@xxxxxxxxxx>
---
 net/sctp/sm_statefuns.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c
index cc544a97c4af..7ff16d12e0c5 100644
--- a/net/sctp/sm_statefuns.c
+++ b/net/sctp/sm_statefuns.c
@@ -652,6 +652,7 @@ static bool sctp_auth_chunk_verify(struct net *net, struct sctp_chunk *chunk,
 		return false;
 
 	/* set-up our fake chunk so that we can process it */
+	memset(&auth, 0x0, sizeof(auth));
 	auth.skb = chunk->auth_chunk;
 	auth.asoc = chunk->asoc;
 	auth.sctp_hdr = chunk->sctp_hdr;
-- 
2.25.1