Commit 305e2b41 authored by Jan Hykel's avatar Jan Hykel Committed by Dr. Stephen Henson
Browse files

Don't use msg on error. 



Don't attempt to access msg structure if recvmsg returns an error.

PR#3483
Reviewed-by: default avatarStephen Henson <steve@openssl.org>
Reviewed-by: default avatarTim Hudson <tjh@openssl.org>

(cherry picked from commit 012aa9ec)
parent ba7aaa56

crypto/bio/bss_dgram.c

+7 −7
Original line number Diff line number Diff line
@@ -1082,6 +1082,13 @@ static int dgram_sctp_read(BIO *b, char *out, int outl) 
			msg.msg_flags = 0;

			n = recvmsg(b->num, &msg, 0);



			if (n <= 0)

				{

				if (n < 0)

					ret = n;

				break;

				}



			if (msg.msg_controllen > 0)

				{

				for (cmsg = CMSG_FIRSTHDR(&msg); cmsg; cmsg = CMSG_NXTHDR(&msg, cmsg))
@@ -1121,13 +1128,6 @@ static int dgram_sctp_read(BIO *b, char *out, int outl) 
					}

				}



			if (n <= 0)

				{

				if (n < 0)

					ret = n;

				break;

				}



			if (msg.msg_flags & MSG_NOTIFICATION)

				{

				snp = (union sctp_notification*) out;