test/bntest.c:1002: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `BN_mod_exp_recp`.
Showing all 24 steps of the trace


test/bntest.c:1020:14: Call
1018.           }
1019.   
1020.           if (!TEST_int_ge(kronecker = BN_kronecker(a, b, ctx), -1))
                     ^
1021.               goto err;
1022.           /* we actually need BN_kronecker(a, |b|) */

crypto/bn/bn_kron.c:17:1: Parameter `ctx->stack.depth`
  15.   
  16.   /* Returns -2 for errors because both -1 and 0 are valid results. */
  17. > int BN_kronecker(const BIGNUM *a, const BIGNUM *b, BN_CTX *ctx)
  18.   {
  19.       int i;

crypto/bn/bn_kron.c:35:5: Call
  33.       bn_check_top(b);
  34.   
  35.       BN_CTX_start(ctx);
            ^
  36.       A = BN_CTX_get(ctx);
  37.       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_kron.c:135:5: Call
  133.       }
  134.    end:
  135.       BN_CTX_end(ctx);
             ^
  136.       if (err)
  137.           return -2;

crypto/bn/bn_ctx.c:185:1: Parameter `ctx->stack.depth`
    183.   }
    184.   
    185. > void BN_CTX_end(BN_CTX *ctx)
    186.   {
    187.       CTXDBG("ENTER BN_CTX_end()", ctx);

test/bntest.c:1002:14: Call
1000.           BN_set_negative(b, 0);
1001.   
1002.           if (!TEST_true(BN_mod_exp_recp(r, a, t, b, ctx)))
                     ^
1003.               goto err;
1004.           BN_set_negative(b, 1);

crypto/bn/bn_exp.c:161:1: Parameter `ctx->stack.depth`
  159.   }
  160.   
  161. > int BN_mod_exp_recp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
  162.                       const BIGNUM *m, BN_CTX *ctx)
  163.   {

crypto/bn/bn_exp.c:191:5: Call
  189.       }
  190.   
  191.       BN_CTX_start(ctx);
             ^
  192.       aa = BN_CTX_get(ctx);
  193.       val[0] = 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:210:10: Call
  208.       }
  209.   
  210.       if (!BN_nnmod(val[0], a, m, ctx))
                  ^
  211.           goto err;               /* 1 */
  212.       if (BN_is_zero(val[0])) {

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.       CTXDBG("ENTER BN_CTX_end()", ctx);

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

crypto/bn/bn_ctx.c:266:1: <LHS trace>
264.   }
265.   
266. > static unsigned int BN_STACK_pop(BN_STACK *st)
267.   {
268.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:266:1: Parameter `st->depth`
            264.   }
            265.   
            266. > static unsigned int BN_STACK_pop(BN_STACK *st)
            267.   {
            268.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:268:12: Binary operation: ([0, +oo] - 1):unsigned32 by call to `BN_mod_exp_recp` 
            266.   static unsigned int BN_STACK_pop(BN_STACK *st)
            267.   {
            268.       return st->indexes[--(st->depth)];
                              ^
            269.   }
            270.   
