test/bntest.c:1249: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_lshift`.
Showing all 25 steps of the trace


test/bntest.c:1244:17: Call
1242.   
1243.       if (!TEST_ptr(a = getBN(s, "A"))
1244.               || !TEST_ptr(lshift = getBN(s, "LShift"))
                        ^
1245.               || !TEST_ptr(ret = BN_new())
1246.               || !getint(s, &n, "N"))

test/bntest.c:107:9: Call
  105.       }
  106.   
  107.       if (parseBN(&ret, hex) != (int)strlen(hex)) {
                 ^
  108.           TEST_error("Could not decode '%s'", hex);
  109.           return NULL;

test/bntest.c:88:12: Call
    86.   {
    87.       *out = NULL;
    88.       return BN_hex2bn(out, in);
                     ^
    89.   }
    90.   

crypto/bn/bn_conv.c:126:1: Parameter `(*bn)->top`
      124.   #endif
      125.   
      126. > int BN_hex2bn(BIGNUM **bn, const char *a)
      127.   {
      128.       BIGNUM *ret = NULL;

test/bntest.c:1249:10: Call
1247.           goto err;
1248.   
1249.       if (!TEST_true(BN_lshift(ret, a, n))
                 ^
1250.               || !equalBN("A << N", lshift, ret)
1251.               || !TEST_true(BN_rshift(ret, lshift, n))

crypto/bn/bn_shift.c:84:1: Parameter `r->top`
  82.   }
  83.   
  84. > int BN_lshift(BIGNUM *r, const BIGNUM *a, int n)
  85.   {
  86.       int ret;

crypto/bn/bn_shift.c:93:11: Call
  91.       }
  92.   
  93.       ret = bn_lshift_fixed_top(r, a, n);
                  ^
  94.   
  95.       bn_correct_top(r);

crypto/bn/bn_shift.c:107:1: Parameter `r->top`
    105.    * non-secret.
    106.    */
    107. > int bn_lshift_fixed_top(BIGNUM *r, const BIGNUM *a, int n)
    108.   {
    109.       int i, nw;

crypto/bn/bn_shift.c:120:9: Call
    118.   
    119.       nw = n / BN_BITS2;
    120.       if (bn_wexpand(r, a->top + nw + 1) == NULL)
                   ^
    121.           return 0;
    122.   

crypto/bn/bn_lib.c:962:1: Parameter `a->top`
      960.   }
      961.   
      962. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
      963.   {
      964.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:964:37: Call
      962.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
      963.   {
      964.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                                 ^
      965.   }
      966.   

crypto/bn/bn_lib.c:245:1: Parameter `b->top`
        243.    */
        244.   
        245. > BIGNUM *bn_expand2(BIGNUM *b, int words)
        246.   {
        247.       if (words > b->dmax) {

crypto/bn/bn_lib.c:248:23: Call
        246.   {
        247.       if (words > b->dmax) {
        248.           BN_ULONG *a = bn_expand_internal(b, words);
                                     ^
        249.           if (!a)
        250.               return NULL;

crypto/bn/bn_lib.c:209:1: <Offset trace>
207.   /* This is used by bn_expand2() */
208.   /* The caller MUST check that words > b->dmax before calling this */
209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
210.   {
211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:209:1: Parameter `b->top`
          207.   /* This is used by bn_expand2() */
          208.   /* The caller MUST check that words > b->dmax before calling this */
          209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
          210.   {
          211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:209:1: <Length trace>
207.   /* This is used by bn_expand2() */
208.   /* The caller MUST check that words > b->dmax before calling this */
209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
210.   {
211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:209:1: Parameter `words`
          207.   /* This is used by bn_expand2() */
          208.   /* The caller MUST check that words > b->dmax before calling this */
          209. > static BN_ULONG *bn_expand_internal(const BIGNUM *b, int words)
          210.   {
          211.       BN_ULONG *a = NULL;

crypto/bn/bn_lib.c:224:13: Call
          222.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          223.       else
          224.           a = OPENSSL_zalloc(words * sizeof(*a));
                             ^
          225.       if (a == NULL) {
          226.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/mem.c:228:1: Parameter `num`
            226.   }
            227.   
            228. > void *CRYPTO_zalloc(size_t num, const char *file, int line)
            229.   {
            230.       void *ret = CRYPTO_malloc(num, file, line);

crypto/mem.c:230:17: Call
            228.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            229.   {
            230.       void *ret = CRYPTO_malloc(num, file, line);
                                   ^
            231.   
            232.       FAILTEST();

crypto/mem.c:201:9: Assignment
              199.   
              200.       if (num == 0)
              201.           return NULL;
                             ^
              202.   
              203.       FAILTEST();

crypto/mem.c:230:5: Assignment
            228.   void *CRYPTO_zalloc(size_t num, const char *file, int line)
            229.   {
            230.       void *ret = CRYPTO_malloc(num, file, line);
                       ^
            231.   
            232.       FAILTEST();

crypto/mem.c:235:5: Assignment
            233.       if (ret != NULL)
            234.           memset(ret, 0, num);
            235.       return ret;
                       ^
            236.   }
            237.   

crypto/bn/bn_lib.c:224:9: Assignment
          222.           a = OPENSSL_secure_zalloc(words * sizeof(*a));
          223.       else
          224.           a = OPENSSL_zalloc(words * sizeof(*a));
                         ^
          225.       if (a == NULL) {
          226.           BNerr(BN_F_BN_EXPAND_INTERNAL, ERR_R_MALLOC_FAILURE);

crypto/bn/bn_lib.c:232:9: Array access: Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_lshift` 
          230.       assert(b->top <= words);
          231.       if (b->top > 0)
          232.           memcpy(a, b->d, sizeof(*a) * b->top);
                         ^
          233.   
          234.       return a;
