From e161f1c8ba802c15dc049c75f8071d9bb8aaf106 Mon Sep 17 00:00:00 2001
From: cinap_lenrek <cinap_lenrek@felloff.net>
Date: Sun, 5 Jul 2020 17:05:49 +0200
Subject: [PATCH] upas/fs: fix memory leak in ref822()

---
 sys/src/cmd/upas/fs/mbox.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sys/src/cmd/upas/fs/mbox.c b/sys/src/cmd/upas/fs/mbox.c
index 878d09b27..d9b245bf6 100644
--- a/sys/src/cmd/upas/fs/mbox.c
+++ b/sys/src/cmd/upas/fs/mbox.c
@@ -888,7 +888,8 @@ ref822(Message *m, Header *h, char*, char *p)
 			free(a[0]);
 			memmove(&a[0], &a[1], (Nref - 1) * sizeof(a[0]));
 			j--;
-		}
+		} if(a[j] != nil)
+			continue;
 		a[j] = strdup(f[i]);
 	}
 	free(s);