crypto/srp/srp_lib.c:168: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `BN_mod_exp`.
Showing all 32 steps of the trace


crypto/srp/srp_lib.c:168:36: Call
166.           return NULL;
167.   
168.       if ((A = BN_new()) != NULL && !BN_mod_exp(A, g, a, N, bn_ctx)) {
                                          ^
169.           BN_free(A);
170.           A = NULL;

crypto/bn/bn_exp.c:89:1: Parameter `ctx->stack.depth`
  87.   }
  88.   
  89. > int BN_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, const BIGNUM *m,
  90.                  BN_CTX *ctx)
  91.   {

crypto/bn/bn_exp.c:141:19: Call
  139.               && (BN_get_flags(m, BN_FLG_CONSTTIME) == 0)) {
  140.               BN_ULONG A = a->d[0];
  141.               ret = BN_mod_exp_mont_word(r, A, p, m, ctx, NULL);
                           ^
  142.           } else
  143.   # endif

crypto/bn/bn_exp.c:1129:1: Parameter `ctx->stack.depth`
    1127.   }
    1128.   
    1129. > int BN_mod_exp_mont_word(BIGNUM *rr, BN_ULONG a, const BIGNUM *p,
    1130.                            const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *in_mont)
    1131.   {

crypto/bn/bn_exp.c:1189:5: Call
    1187.       }
    1188.   
    1189.       BN_CTX_start(ctx);
                ^
    1190.       r = BN_CTX_get(ctx);
    1191.       t = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:171:1: Parameter `ctx->stack.depth`
      169.   }
      170.   
      171. > void BN_CTX_start(BN_CTX *ctx)
      172.   {
      173.       CTXDBG("ENTER BN_CTX_start()", ctx);

crypto/bn/bn_exp.c:1200:14: Call
    1198.           if ((mont = BN_MONT_CTX_new()) == NULL)
    1199.               goto err;
    1200.           if (!BN_MONT_CTX_set(mont, m, ctx))
                         ^
    1201.               goto err;
    1202.       }

crypto/bn/bn_mont.c:263:1: Parameter `ctx->stack.depth`
      261.   }
      262.   
      263. > int BN_MONT_CTX_set(BN_MONT_CTX *mont, const BIGNUM *mod, BN_CTX *ctx)
      264.   {
      265.       int i, ret = 0;

crypto/bn/bn_mont.c:271:5: Call
      269.           return 0;
      270.   
      271.       BN_CTX_start(ctx);
                 ^
      272.       if ((Ri = BN_CTX_get(ctx)) == NULL)
      273.           goto err;

crypto/bn/bn_ctx.c:171:1: Parameter `ctx->stack.depth`
        169.   }
        170.   
        171. > void BN_CTX_start(BN_CTX *ctx)
        172.   {
        173.       CTXDBG("ENTER BN_CTX_start()", ctx);

crypto/bn/bn_mont.c:351:19: Call
      349.           if (BN_is_one(&tmod))
      350.               BN_zero(Ri);
      351.           else if ((BN_mod_inverse(Ri, R, &tmod, ctx)) == NULL)
                               ^
      352.               goto err;
      353.           if (!BN_lshift(Ri, Ri, BN_BITS2))

crypto/bn/bn_gcd.c:124:1: Parameter `ctx->stack.depth`
        122.                                           BN_CTX *ctx);
        123.   
        124. > BIGNUM *BN_mod_inverse(BIGNUM *in,
        125.                          const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx)
        126.   {

crypto/bn/bn_gcd.c:129:10: Call
        127.       BIGNUM *rv;
        128.       int noinv;
        129.       rv = int_bn_mod_inverse(in, a, n, ctx, &noinv);
                        ^
        130.       if (noinv)
        131.           BNerr(BN_F_BN_MOD_INVERSE, BN_R_NO_INVERSE);

crypto/bn/bn_gcd.c:135:1: Parameter `ctx->stack.depth`
          133.   }
          134.   
          135. > BIGNUM *int_bn_mod_inverse(BIGNUM *in,
          136.                              const BIGNUM *a, const BIGNUM *n, BN_CTX *ctx,
          137.                              int *pnoinv)

crypto/bn/bn_gcd.c:155:16: Call
          153.       if ((BN_get_flags(a, BN_FLG_CONSTTIME) != 0)
          154.           || (BN_get_flags(n, BN_FLG_CONSTTIME) != 0)) {
          155.           return BN_mod_inverse_no_branch(in, a, n, ctx);
                                ^
          156.       }
          157.   

crypto/bn/bn_gcd.c:458:1: Parameter `ctx->stack.depth`
            456.    * not contain branches that may leak sensitive information.
            457.    */
            458. > static BIGNUM *BN_mod_inverse_no_branch(BIGNUM *in,
            459.                                           const BIGNUM *a, const BIGNUM *n,
            460.                                           BN_CTX *ctx)

crypto/bn/bn_gcd.c:469:5: Call
            467.       bn_check_top(n);
            468.   
            469.       BN_CTX_start(ctx);
                       ^
            470.       A = BN_CTX_get(ctx);
            471.       B = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:171:1: Parameter `ctx->stack.depth`
              169.   }
              170.   
              171. > void BN_CTX_start(BN_CTX *ctx)
              172.   {
              173.       CTXDBG("ENTER BN_CTX_start()", ctx);

crypto/bn/bn_gcd.c:504:18: Call
            502.               bn_init(&local_B);
            503.               BN_with_flags(&local_B, B, BN_FLG_CONSTTIME);
            504.               if (!BN_nnmod(B, &local_B, A, ctx))
                                    ^
            505.                   goto err;
            506.               /* Ensure local_B goes out of scope before any further use of B */

crypto/bn/bn_mod.c:13:1: Parameter `ctx->stack.depth`
              11.   #include "bn_lcl.h"
              12.   
              13. > int BN_nnmod(BIGNUM *r, const BIGNUM *m, const BIGNUM *d, BN_CTX *ctx)
              14.   {
              15.       /*

crypto/bn/bn_mod.c:20:11: Call
              18.        */
              19.   
              20.       if (!(BN_mod(r, m, d, ctx)))
                              ^
              21.           return 0;
              22.       if (!r->neg)

crypto/bn/bn_div.c:209:1: Parameter `ctx->stack.depth`
                207.    * If 'dv' or 'rm' is NULL, the respective value is not returned.
                208.    */
                209. > int BN_div(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num, const BIGNUM *divisor,
                210.              BN_CTX *ctx)
                211.   {

crypto/bn/bn_div.c:229:11: Call
                227.       }
                228.   
                229.       ret = bn_div_fixed_top(dv, rm, num, divisor, ctx);
                                 ^
                230.   
                231.       if (ret) {

crypto/bn/bn_div.c:264:1: Parameter `ctx->stack.depth`
                  262.    *       divisor's length is considered public;
                  263.    */
                  264. > int bn_div_fixed_top(BIGNUM *dv, BIGNUM *rm, const BIGNUM *num,
                  265.                        const BIGNUM *divisor, BN_CTX *ctx)
                  266.   {

crypto/bn/bn_div.c:280:5: Call
                  278.       bn_check_top(rm);
                  279.   
                  280.       BN_CTX_start(ctx);
                             ^
                  281.       res = (dv == NULL) ? BN_CTX_get(ctx) : dv;
                  282.       tmp = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:171:1: Parameter `ctx->stack.depth`
                    169.   }
                    170.   
                    171. > void BN_CTX_start(BN_CTX *ctx)
                    172.   {
                    173.       CTXDBG("ENTER BN_CTX_start()", ctx);

crypto/bn/bn_div.c:450:5: Call
                  448.       if (rm != NULL)
                  449.           bn_rshift_fixed_top(rm, snum, norm_shift);
                  450.       BN_CTX_end(ctx);
                             ^
                  451.       return 1;
                  452.    err:

crypto/bn/bn_ctx.c:185:1: Parameter `ctx->stack.depth`
                    183.   }
                    184.   
                    185. > void BN_CTX_end(BN_CTX *ctx)
                    186.   {
                    187.       if (ctx == NULL)

crypto/bn/bn_ctx.c:193:27: Call
                    191.           ctx->err_stack--;
                    192.       else {
                    193.           unsigned int fp = BN_STACK_pop(&ctx->stack);
                                                     ^
                    194.           /* Does this stack frame have anything to release? */
                    195.           if (fp < ctx->used)

crypto/bn/bn_ctx.c:268:1: <LHS trace>
266.   }
267.   
268. > static unsigned int BN_STACK_pop(BN_STACK *st)
269.   {
270.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:268:1: Parameter `st->depth`
                      266.   }
                      267.   
                      268. > static unsigned int BN_STACK_pop(BN_STACK *st)
                      269.   {
                      270.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:270:12: Binary operation: ([0, +oo] - 1):unsigned32 by call to `BN_mod_exp` 
                      268.   static unsigned int BN_STACK_pop(BN_STACK *st)
                      269.   {
                      270.       return st->indexes[--(st->depth)];
                                        ^
                      271.   }
                      272.   
