test/bntest.c:1915: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, +oo] by call to `BN_mul`.
Showing all 16 steps of the trace


test/bntest.c:1911:10: Call
1909.   
1910.       /* Test that BN_mul never gives negative zero. */
1911.       if (!TEST_true(BN_set_word(a, 1)))
                 ^
1912.           goto err;
1913.       BN_set_negative(a, 1);

crypto/bn/bn_lib.c:358:1: Parameter `*a->d`
  356.   }
  357.   
  358. > int BN_set_word(BIGNUM *a, BN_ULONG w)
  359.   {
  360.       bn_check_top(a);

crypto/bn/bn_lib.c:361:9: Call
  359.   {
  360.       bn_check_top(a);
  361.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                 ^
  362.           return 0;
  363.       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))

test/bntest.c:1915:10: Call
1913.       BN_set_negative(a, 1);
1914.       BN_zero(b);
1915.       if (!TEST_true(BN_mul(c, a, b, ctx)))
                 ^
1916.           goto err;
1917.       if (!TEST_BN_eq_zero(c)

crypto/bn/bn_mul.c:497:1: Parameter `*r->d`
  495.   #endif                          /* BN_RECURSION */
  496.   
  497. > int BN_mul(BIGNUM *r, const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
  498.   {
  499.       int ret = 0;

crypto/bn/bn_mul.c:545:17: Call
  543.   # endif
  544.           if (al == 8) {
  545.               if (bn_wexpand(rr, 16) == NULL)
                         ^
  546.                   goto err;
  547.               rr->top = 16;

crypto/bn/bn_lib.c:942:1: Parameter `*a->d`
    940.   }
    941.   
    942. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
    943.   {
    944.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:944:37: Call
    942.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
    943.   {
    944.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                               ^
    945.   }
    946.   

crypto/bn/bn_lib.c:244:1: Parameter `*b->d`
      242.    */
      243.   
      244. > BIGNUM *bn_expand2(BIGNUM *b, int words)
      245.   {
      246.       if (words > b->dmax) {

crypto/bn/bn_lib.c:247:23: Call
      245.   {
      246.       if (words > b->dmax) {
      247.           BN_ULONG *a = bn_expand_internal(b, words);
                                   ^
      248.           if (!a)
      249.               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:231:9: Array access: Offset added: [8, +oo] Size: [0, +oo] by call to `BN_mul` 
        229.       assert(b->top <= words);
        230.       if (b->top > 0)
        231.           memcpy(a, b->d, sizeof(*a) * b->top);
                       ^
        232.   
        233.       return a;
