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-rw-r--r--src/string/memmem.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/string/memmem.c b/src/string/memmem.c
index 3b1ae183..d7e12219 100644
--- a/src/string/memmem.c
+++ b/src/string/memmem.c
@@ -112,8 +112,8 @@ static char *twoway_memmem(const unsigned char *h, const unsigned char *z, const
 		}
 
 		/* Compare right half */
-		for (k=MAX(ms+1,mem); n[k] && n[k] == h[k]; k++);
-		if (n[k]) {
+		for (k=MAX(ms+1,mem); k<l && n[k] == h[k]; k++);
+		if (k < l) {
 			h += k-ms;
 			mem = 0;
 			continue;