X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=ssh.c;h=ef503bf52160e96503828ad72bbd5d67c377031e;hb=75239b955ba7cb4843aa7a7e9d2befc4c3f27a27;hp=750017f65daff02b4724b238194481c6ce8a7890;hpb=b73527e641fa09ff57ffd4d20ec4e4045039b890;p=PuTTY.git

diff --git a/ssh.c b/ssh.c
index 750017f6..ef503bf5 100644
--- a/ssh.c
+++ b/ssh.c
@@ -5778,6 +5778,12 @@ static int do_ssh2_transport(Ssh ssh, void *vin, int inlen,
 		break;
 	    }
 	}
+	if (!ssh->hostkey) {
+	    bombout(("Couldn't agree a host key algorithm (available: %s)",
+		     str ? str : "(null)"));
+	    crStop(0);
+	}
+
 	s->guessok = s->guessok &&
 	    first_in_commasep_string(hostkey_algs[0]->name, str, len);
 	ssh_pkt_getstring(pktin, &str, &len);    /* client->server cipher */