crypto/ec/ecp_smpl.c:1474: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 67108856] by call to `BN_mod_lshift_quick`.
Showing all 25 steps of the trace


crypto/ec/ecp_smpl.c:1472:13: Call
1470.           || !group->meth->field_mul(group, t1, t1, t2, ctx)
1471.           || !group->meth->field_mul(group, t2, t3, t6, ctx)
1472.           || !BN_mod_add_quick(t1, t1, t2, group->field)
                    ^
1473.           /* r->Z coord output */
1474.           || !BN_mod_lshift_quick(r->Z, t1, 2, group->field)

crypto/bn/bn_mod.c:98:15: Call
  96.                        const BIGNUM *m)
  97.   {
  98.       int ret = bn_mod_add_fixed_top(r, a, b, m);
                       ^
  99.   
  100.       if (ret)

crypto/bn/bn_mod.c:66:10: Assignment
    64.       bp = b->d != NULL ? b->d : tp;
    65.   
    66.       for (i = 0, ai = 0, bi = 0, carry = 0; i < mtop;) {
                   ^
    67.           mask = (BN_ULONG)0 - ((i - a->top) >> (8 * sizeof(i) - 1));
    68.           temp = ((ap[ai] & mask) + carry) & BN_MASK2;

crypto/bn/bn_mod.c:85:5: Assignment
    83.           ((volatile BN_ULONG *)tp)[i] = 0;
    84.       }
    85.       r->top = mtop;
              ^
    86.       r->flags |= BN_FLG_FIXED_TOP;
    87.       r->neg = 0;

crypto/ec/ecp_smpl.c:1474:13: Call
1472.           || !BN_mod_add_quick(t1, t1, t2, group->field)
1473.           /* r->Z coord output */
1474.           || !BN_mod_lshift_quick(r->Z, t1, 2, group->field)
                    ^
1475.           || !EC_POINT_copy(s, p))
1476.           return 0;

crypto/bn/bn_mod.c:279:1: Parameter `r->top`
  277.    * m
  278.    */
  279. > int BN_mod_lshift_quick(BIGNUM *r, const BIGNUM *a, int n, const BIGNUM *m)
  280.   {
  281.       if (r != a) {

crypto/bn/bn_mod.c:282:13: Call
  280.   {
  281.       if (r != a) {
  282.           if (BN_copy(r, a) == NULL)
                     ^
  283.               return 0;
  284.       }

crypto/bn/bn_lib.c:281:1: Parameter `a->top`
    279.   }
    280.   
    281. > BIGNUM *BN_copy(BIGNUM *a, const BIGNUM *b)
    282.   {
    283.       bn_check_top(b);

crypto/bn/bn_lib.c:287:9: Call
    285.       if (a == b)
    286.           return a;
    287.       if (bn_wexpand(a, b->top) == NULL)
                   ^
    288.           return NULL;
    289.   

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: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_mod_lshift_quick` 
          230.       assert(b->top <= words);
          231.       if (b->top > 0)
          232.           memcpy(a, b->d, sizeof(*a) * b->top);
                         ^
          233.   
          234.       return a;
