crypto/bn/bn_mont.c:420: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_MONT_CTX_set`.
Showing all 21 steps of the trace


crypto/bn/bn_mont.c:420:10: Call
418.       if (ret == NULL)
419.           return NULL;
420.       if (!BN_MONT_CTX_set(ret, mod, ctx)) {
                ^
421.           BN_MONT_CTX_free(ret);
422.           return NULL;

crypto/bn/bn_mont.c:247:1: Parameter `mont->N.top`
  245.   }
  246.   
  247. > int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)
  248.   {
  249.       int ret = 0;

crypto/bn/bn_mont.c:259:10: Call
  257.           goto err;
  258.       R = &(mont->RR);            /* grab RR as a temp */
  259.       if (!BN_copy(&(mont->N), mod))
                  ^
  260.           goto err;               /* Set N */
  261.       mont->N.neg = 0;

crypto/bn/bn_lib.c:323:1: Parameter `a->top`
    321.   }
    322.   
    323. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
    324.   {
    325.       bn_check_top(b);

crypto/bn/bn_lib.c:329:9: Call
    327.       if (a == b)
    328.           return a;
    329.       if (bn_wexpand(a, b->top) == NULL)
                   ^
    330.           return NULL;
    331.   

crypto/bn/bn_lib.c:948:1: Parameter `a->top`
      946.   }
      947.   
      948. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
      949.   {
      950.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:950:37: Call
      948.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
      949.   {
      950.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                                 ^
      951.   }
      952.   

crypto/bn/bn_lib.c:284:1: Parameter `b->top`
        282.    */
        283.   
        284. > BIGNUM *bn_expand2(BIGNUM *b, int words)
        285.   {
        286.       bn_check_top(b);

crypto/bn/bn_lib.c:289:23: Call
        287.   
        288.       if (words > b->dmax) {
        289.           BN_ULONG *a = bn_expand_internal(b, words);
                                     ^
        290.           if (!a)
        291.               return NULL;

crypto/bn/bn_lib.c:246:1: <Offset trace>
244.   /* This is used by bn_expand2() */
245.   /* The caller MUST check that words > b->dmax before calling this */
246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
247.   {
248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: Parameter `b->top`
          244.   /* This is used by bn_expand2() */
          245.   /* The caller MUST check that words > b->dmax before calling this */
          246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
          247.   {
          248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: <Length trace>
244.   /* This is used by bn_expand2() */
245.   /* The caller MUST check that words > b->dmax before calling this */
246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
247.   {
248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:246:1: Parameter `words`
          244.   /* This is used by bn_expand2() */
          245.   /* The caller MUST check that words > b->dmax before calling this */
          246. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
          247.   {
          248.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:263:13: Call
          261.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          262.       else
          263.           a = OPENSSL_zalloc(words * sizeof(*a));
                             ^
          264.       if (a == NULL) {
          265.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/mem.c:186:1: Parameter `num`
            184.   }
            185.   
            186. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
            187.   {
            188.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:188:17: Call
            186.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            187.   {
            188.       void *ret = CRYPTO_malloc(num, file, line);
                                   ^
            189.   
            190.       FAILTEST();

crypto/mem.c:166:9: Assignment
              164.   
              165.       if (num == 0)
              166.           return NULL;
                             ^
              167.   
              168.       FAILTEST();

crypto/mem.c:188:5: Assignment
            186.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            187.   {
            188.       void *ret = CRYPTO_malloc(num, file, line);
                       ^
            189.   
            190.       FAILTEST();

crypto/mem.c:193:5: Assignment
            191.       if (ret != NULL)
            192.           memset(ret, 0, num);
            193.       return ret;
                       ^
            194.   }
            195.   

crypto/bn/bn_lib.c:263:9: Assignment
          261.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          262.       else
          263.           a = OPENSSL_zalloc(words * sizeof(*a));
                         ^
          264.       if (a == NULL) {
          265.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:271:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_MONT_CTX_set` 
          269.       assert(b->top <= words);
          270.       if (b->top > 0)
          271.           memcpy(a, b->d, sizeof(*a) * b->top);
                         ^
          272.   
          273.       return a;
