test/ec_internal_test.c:36: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 536870848] by call to `BN_pseudo_rand`.
Showing all 22 steps of the trace


test/ec_internal_test.c:29:9: Call
27.   
28.       BN_CTX_start(ctx);
29.       a = BN_CTX_get(ctx);
              ^
30.       b = BN_CTX_get(ctx);
31.       if (!TEST_ptr(c = BN_CTX_get(ctx))

crypto/bn/bn_ctx.c:240:5: Call
  238.       }
  239.       /* OK, make sure the returned bignum is "zero" */
  240.       BN_zero(ret);
             ^
  241.       /* clear BN_FLG_CONSTTIME if leaked from previous frames */
  242.       ret->flags &= (~BN_FLG_CONSTTIME);

crypto/bn/bn_lib.c:368:15: Assignment
    366.       a->neg = 0;
    367.       a->d[0] = w;
    368.       a->top = (w ? 1 : 0);
                         ^
    369.       a->flags &= ~BN_FLG_FIXED_TOP;
    370.       bn_check_top(a);

crypto/bn/bn_lib.c:368:5: Assignment
    366.       a->neg = 0;
    367.       a->d[0] = w;
    368.       a->top = (w ? 1 : 0);
               ^
    369.       a->flags &= ~BN_FLG_FIXED_TOP;
    370.       bn_check_top(a);

test/ec_internal_test.c:36:13: Call
34.           || !TEST_true(BN_is_one(b))
35.           /* (1/a)*a = 1 */
36.           || !TEST_true(BN_pseudo_rand(a, BN_num_bits(group->field) - 1,
                  ^
37.                                        BN_RAND_TOP_ONE, BN_RAND_BOTTOM_ANY))
38.           || !TEST_true(group->meth->field_inv(group, b, a, ctx))

crypto/bn/bn_rand.c:213:1: Parameter `*rnd->d`
  211.   }
  212.   
  213. > int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom)
  214.   {
  215.       return BN_rand(rnd, bits, top, bottom);

crypto/bn/bn_rand.c:215:12: Call
  213.   int BN_pseudo_rand(BIGNUM *rnd, int bits, int top, int bottom)
  214.   {
  215.       return BN_rand(rnd, bits, top, bottom);
                    ^
  216.   }
  217.   

crypto/bn/bn_rand.c:106:1: Parameter `*rnd->d`
    104.       return bnrand(NORMAL, rnd, bits, top, bottom, ctx);
    105.   }
    106. > int BN_rand(BIGNUM *rnd, int bits, int top, int bottom)
    107.   {
    108.       return bnrand(NORMAL, rnd, bits, top, bottom, NULL);

crypto/bn/bn_rand.c:108:12: Call
    106.   int BN_rand(BIGNUM *rnd, int bits, int top, int bottom)
    107.   {
    108.       return bnrand(NORMAL, rnd, bits, top, bottom, NULL);
                      ^
    109.   }
    110.   

crypto/bn/bn_rand.c:23:1: Parameter `*rnd->d`
      21.   } BNRAND_FLAG;
      22.   
      23. > static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom,
      24.                     BN_CTX *ctx)
      25.   {

crypto/bn/bn_rand.c:33:9: Call
      31.           if (top != BN_RAND_TOP_ANY || bottom != BN_RAND_BOTTOM_ANY)
      32.               goto toosmall;
      33.           BN_zero(rnd);
                    ^
      34.           return 1;
      35.       }

crypto/bn/bn_lib.c:361:1: Parameter `*a->d`
        359.   }
        360.   
        361. > int BN_set_word(BIGNUM *a, BN_ULONG w)
        362.   {
        363.       bn_check_top(a);

crypto/bn/bn_lib.c:364:9: Call
        362.   {
        363.       bn_check_top(a);
        364.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                       ^
        365.           return 0;
        366.       a->neg = 0;

crypto/bn/bn_lcl.h:660:1: Parameter `*a->d`
          658.                            const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
          659.   
          660. > static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
          661.   {
          662.       if (bits > (INT_MAX - BN_BITS2 + 1))

crypto/bn/bn_lcl.h:668:12: Call
          666.           return a;
          667.   
          668.       return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);
                            ^
          669.   }
          670.   

crypto/bn/bn_lib.c:245:1: Parameter `*b->d`
            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 `*b->d`
              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:232:9: Array access: Offset added: [8, +oo] Size: [0, 536870848] by call to `BN_pseudo_rand` 
              230.       assert(b->top <= words);
              231.       if (b->top > 0)
              232.           memcpy(a, b->d, sizeof(*a) * b->top);
                             ^
              233.   
              234.       return a;
