test/bntest.c:2080: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 536870848] by call to `BN_set_word`.
Showing all 15 steps of the trace


test/bntest.c:2079:17: Call
2077.               || !TEST_ptr(p)
2078.               || !TEST_ptr(m)
2079.               || !TEST_true(BN_set_word(a, 1))
                        ^
2080.               || !TEST_true(BN_set_word(p, 0))
2081.               || !TEST_true(BN_set_word(m, 1)))

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

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

test/bntest.c:2080:17: Call
2078.               || !TEST_ptr(m)
2079.               || !TEST_true(BN_set_word(a, 1))
2080.               || !TEST_true(BN_set_word(p, 0))
                        ^
2081.               || !TEST_true(BN_set_word(m, 1)))
2082.           goto err;

crypto/bn/bn_lib.c:360:1: Parameter `*a->d`
  358.   }
  359.   
  360. > int BN_set_word(BIGNUM *a, BN_ULONG w)
  361.   {
  362.       bn_check_top(a);

crypto/bn/bn_lib.c:363:9: Call
  361.   {
  362.       bn_check_top(a);
  363.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                 ^
  364.           return 0;
  365.       a->neg = 0;

crypto/bn/bn_lcl.h:651:1: Parameter `*a->d`
    649.                            const BIGNUM *add, const BIGNUM *rem, BN_CTX *ctx);
    650.   
    651. > static ossl_inline BIGNUM *bn_expand(BIGNUM *a, int bits)
    652.   {
    653.       if (bits > (INT_MAX - BN_BITS2 + 1))

crypto/bn/bn_lcl.h:659:12: Call
    657.           return a;
    658.   
    659.       return bn_expand2((a),(bits+BN_BITS2-1)/BN_BITS2);
                      ^
    660.   }
    661.   

crypto/bn/bn_lib.c:246:1: Parameter `*b->d`
      244.    */
      245.   
      246. > BIGNUM *bn_expand2(BIGNUM *b, int words)
      247.   {
      248.       bn_check_top(b);

crypto/bn/bn_lib.c:251:23: Call
      249.   
      250.       if (words > b->dmax) {
      251.           BN_ULONG *a = bn_expand_internal(b, words);
                                   ^
      252.           if (!a)
      253.               return NULL;

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

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

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

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

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