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-rw-r--r--src/string/memmem.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/string/memmem.c b/src/string/memmem.c
index 5211d759..a5a249f2 100644
--- a/src/string/memmem.c
+++ b/src/string/memmem.c
@@ -139,6 +139,7 @@ void *memmem(const void *h0, size_t k, const void *n0, size_t l)
/* Use faster algorithms for short needles */
h = memchr(h0, *n, k);
if (!h || l==1) return (void *)h;
+ k -= h - (const unsigned char *)h0;
if (l==2) return twobyte_memmem(h, k, n);
if (l==3) return threebyte_memmem(h, k, n);
if (l==4) return fourbyte_memmem(h, k, n);