X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=fuzz%2Fbndiv.c;h=e9c70bbd4c5b1c5916b66f776471ce650a271fd2;hp=eb17f29cab57aa12719581fdb26b503cdd9aff69;hb=9d740909595546ebd34a845e6328cb60afa388b8;hpb=ad4da7fbc0779fb1730c9862221e19583de69f4f

diff --git a/fuzz/bndiv.c b/fuzz/bndiv.c
index eb17f29cab..e9c70bbd4c 100644
--- a/fuzz/bndiv.c
+++ b/fuzz/bndiv.c
@@ -15,34 +15,45 @@
 
 #include <stdio.h>
 #include <openssl/bn.h>
+#include <openssl/err.h>
 #include "fuzzer.h"
 
+/* 256 kB */
+#define MAX_LEN (256 * 1000)
+
+static BN_CTX *ctx;
+static BIGNUM *b1;
+static BIGNUM *b2;
+static BIGNUM *b3;
+static BIGNUM *b4;
+static BIGNUM *b5;
+
 int FuzzerInitialize(int *argc, char ***argv)
 {
+    b1 = BN_new();
+    b2 = BN_new();
+    b3 = BN_new();
+    b4 = BN_new();
+    b5 = BN_new();
+    ctx = BN_CTX_new();
+
+    OPENSSL_init_crypto(OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
+    ERR_get_state();
+
     return 1;
 }
 
 int FuzzerTestOneInput(const uint8_t *buf, size_t len)
 {
-    static BN_CTX *ctx;
-    static BIGNUM *b1;
-    static BIGNUM *b2;
-    static BIGNUM *b3;
-    static BIGNUM *b4;
-    static BIGNUM *b5;
     int success = 0;
     size_t l1 = 0, l2 = 0;
     /* s1 and s2 will be the signs for b1 and b2. */
     int s1 = 0, s2 = 0;
 
-    if (ctx == NULL) {
-        b1 = BN_new();
-        b2 = BN_new();
-        b3 = BN_new();
-        b4 = BN_new();
-        b5 = BN_new();
-        ctx = BN_CTX_new();
-    }
+    /* limit the size of the input to avoid timeout */
+    if (len > MAX_LEN)
+        len = MAX_LEN;
+
     /* We are going to split the buffer in two, sizes l1 and l2, giving b1 and
      * b2.
      */
@@ -104,10 +115,17 @@ int FuzzerTestOneInput(const uint8_t *buf, size_t len)
 
  done:
     OPENSSL_assert(success);
+    ERR_clear_error();
 
     return 0;
 }
 
 void FuzzerCleanup(void)
 {
+    BN_free(b1);
+    BN_free(b2);
+    BN_free(b3);
+    BN_free(b4);
+    BN_free(b5);
+    BN_CTX_free(ctx);
 }