crypto/bn/bn_prime.c:518: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end`.
Showing all 9 steps of the trace


crypto/bn/bn_prime.c:450:1: Parameter `ctx->stack.depth`
448.   }
449.   
450. > static int probable_prime_dh(BIGNUM *rnd, int bits, int safe, prime_t *mods,
451.                                const BIGNUM *add, const BIGNUM *rem,
452.                                BN_CTX *ctx)

crypto/bn/bn_prime.c:459:5: Call
457.       BN_ULONG maxdelta = BN_MASK2 - primes[NUMPRIMES - 1];
458.   
459.       BN_CTX_start(ctx);
           ^
460.       if ((t1 = BN_CTX_get(ctx)) == NULL)
461.           goto err;

crypto/bn/bn_ctx.c:194:1: Parameter `ctx->stack.depth`
  192.   }
  193.   
  194. > void BN_CTX_start(BN_CTX *ctx)
  195.   {
  196.       CTXDBG("ENTER BN_CTX_start()", ctx);

crypto/bn/bn_prime.c:518:5: Call
516.   
517.    err:
518.       BN_CTX_end(ctx);
           ^
519.       bn_check_top(rnd);
520.       return ret;

crypto/bn/bn_ctx.c:208:1: Parameter `ctx->stack.depth`
  206.   }
  207.   
  208. > void BN_CTX_end(BN_CTX *ctx)
  209.   {
  210.       if (ctx == NULL)

crypto/bn/bn_ctx.c:216:27: Call
  214.           ctx->err_stack--;
  215.       else {
  216.           unsigned int fp = BN_STACK_pop(&ctx->stack);
                                   ^
  217.           /* Does this stack frame have anything to release? */
  218.           if (fp < ctx->used)

crypto/bn/bn_ctx.c:298:1: <LHS trace>
296.   }
297.   
298. > static unsigned int BN_STACK_pop(BN_STACK *st)
299.   {
300.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:298:1: Parameter `st->depth`
    296.   }
    297.   
    298. > static unsigned int BN_STACK_pop(BN_STACK *st)
    299.   {
    300.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:300:12: Binary operation: ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end` 
    298.   static unsigned int BN_STACK_pop(BN_STACK *st)
    299.   {
    300.       return st->indexes[--(st->depth)];
                      ^
    301.   }
    302.   
