crypto/rsa/rsa_x931g.c:161: error: BUFFER_OVERRUN_L3
  Offset added: [8, +oo] Size: [0, 536870848] by call to `BN_X931_generate_Xpq`.
Showing all 23 steps of the trace


crypto/rsa/rsa_x931g.c:157:10: Call
155.   
156.       BN_CTX_start(ctx);
157.       Xp = BN_CTX_get(ctx);
                ^
158.       Xq = BN_CTX_get(ctx);
159.       if (Xq == NULL)

crypto/bn/bn_ctx.c:229:5: Call
  227.       }
  228.       /* OK, make sure the returned bignum is "zero" */
  229.       BN_zero(ret);
             ^
  230.       /* clear BN_FLG_CONSTTIME if leaked from previous frames */
  231.       ret->flags &= (~BN_FLG_CONSTTIME);

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

crypto/bn/bn_lib.c:362:9: Call
    360.   {
    361.       bn_check_top(a);
    362.       if (bn_expand(a, (int)sizeof(BN_ULONG) * 8) == NULL)
                   ^
    363.           return 0;
    364.       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/rsa/rsa_x931g.c:161:10: Call
159.       if (Xq == NULL)
160.           goto error;
161.       if (!BN_X931_generate_Xpq(Xp, Xq, bits, ctx))
                ^
162.           goto error;
163.   

crypto/bn/bn_x931p.c:160:1: Parameter `*Xp->d`
  158.    */
  159.   
  160. > int BN_X931_generate_Xpq(BIGNUM *Xp, BIGNUM *Xq, int nbits, BN_CTX *ctx)
  161.   {
  162.       BIGNUM *t;

crypto/bn/bn_x931p.c:176:10: Call
  174.        * exceeded.
  175.        */
  176.       if (!BN_priv_rand(Xp, nbits, BN_RAND_TOP_TWO, BN_RAND_BOTTOM_ANY))
                  ^
  177.           goto err;
  178.   

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

crypto/bn/bn_rand.c:109:12: Call
    107.   int BN_priv_rand(BIGNUM *rnd, int bits, int top, int bottom)
    108.   {
    109.       return bnrand(PRIVATE, rnd, bits, top, bottom);
                      ^
    110.   }
    111.   

crypto/bn/bn_rand.c:21:1: Parameter `*rnd->d`
      19.   } BNRAND_FLAG;
      20.   
      21. > static int bnrand(BNRAND_FLAG flag, BIGNUM *rnd, int bits, int top, int bottom)
      22.   {
      23.       unsigned char *buf = NULL;

crypto/bn/bn_rand.c:84:10: Call
      82.       if (bottom)                 /* set bottom bit if requested */
      83.           buf[bytes - 1] |= 1;
      84.       if (!BN_bin2bn(buf, bytes, rnd))
                     ^
      85.           goto err;
      86.       ret = 1;

crypto/bn/bn_lib.c:372:1: Parameter `*ret->d`
        370.   }
        371.   
        372. > BIGNUM *BN_bin2bn(const unsigned char *s, int len, BIGNUM *ret)
        373.   {
        374.       unsigned int i, m;

crypto/bn/bn_lib.c:394:9: Call
        392.       i = ((n - 1) / BN_BYTES) + 1;
        393.       m = ((n - 1) % (BN_BYTES));
        394.       if (bn_wexpand(ret, (int)i) == NULL) {
                       ^
        395.           BN_free(bn);
        396.           return NULL;

crypto/bn/bn_lib.c:939:1: Parameter `*a->d`
          937.   }
          938.   
          939. > BIGNUM *bn_wexpand(BIGNUM *a, int words)
          940.   {
          941.       return (words <= a->dmax) ? a : bn_expand2(a, words);

crypto/bn/bn_lib.c:941:37: Call
          939.   BIGNUM *bn_wexpand(BIGNUM *a, int words)
          940.   {
          941.       return (words <= a->dmax) ? a : bn_expand2(a, words);
                                                     ^
          942.   }
          943.   

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_X931_generate_Xpq` 
              230.       assert(b->top <= words);
              231.       if (b->top > 0)
              232.           memcpy(a, b->d, sizeof(*a) * b->top);
                             ^
              233.   
              234.       return a;
