File openssh-7.2p2-audit_fixes.patch of Package openssh

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File openssh-7.2p2-audit_fixes.patch of Package openssh

# HG changeset patch
# Parent  51a3a8eab1493a799c5a9df95e8e757f872886d0
Various auditing fixes to be merged into the RH-originated patch.

diff --git a/openssh-7.2p2/packet.c b/openssh-7.2p2/packet.c
--- a/openssh-7.2p2/packet.c
+++ b/openssh-7.2p2/packet.c
@@ -371,20 +371,26 @@ ssh_packet_start_discard(struct ssh *ssh
 	return 0;
 }
 
 /* Returns 1 if remote host is connected via socket, 0 if not. */
 
 int
 ssh_packet_connection_is_on_socket(struct ssh *ssh)
 {
-	struct session_state *state = ssh->state;
+	struct session_state *state;
 	struct sockaddr_storage from, to;
 	socklen_t fromlen, tolen;
 
+	/* auditing might get here without valid connection structure when
+	 * destroying sensitive data on exit and thus aborting disgracefully */
+	if ((!ssh) || (!(ssh->state)))
+		return 0;
+	state = ssh->state;
+
 	/* filedescriptors in and out are the same, so it's a socket */
 	if (state->connection_in == state->connection_out)
 		return 1;
 	fromlen = sizeof(from);
 	memset(&from, 0, sizeof(from));
 	if (getpeername(state->connection_in, (struct sockaddr *)&from,
 	    &fromlen) < 0)
 		return 0;

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File openssh-7.2p2-audit_fixes.patch of Package openssh

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