crypto/bn/bn_prime.c:676: error: INTEGER_OVERFLOW_L2
  ([0, 2+max(0, `ctx->stack.depth`)] - 1):unsigned32 by call to `BN_CTX_end`.
Showing all 9 steps of the trace


crypto/bn/bn_prime.c:617:1: Parameter `ctx->stack.depth`
615.   }
616.   
617. > static int probable_prime_dh_safe(BIGNUM *p, int bits, const BIGNUM *padd,
618.                                     const BIGNUM *rem, BN_CTX *ctx)
619.   {

crypto/bn/bn_prime.c:624:5: Call
622.   
623.       bits--;
624.       BN_CTX_start(ctx);
           ^
625.       t1 = BN_CTX_get(ctx);
626.       q = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:253:1: Parameter `ctx->stack.depth`
  251.   }
  252.   
  253. > void BN_CTX_start(BN_CTX *ctx)
  254.   {
  255.       CTXDBG_ENTRY("BN_CTX_start", ctx);

crypto/bn/bn_prime.c:676:5: Call
674.   
675.    err:
676.       BN_CTX_end(ctx);
           ^
677.       bn_check_top(p);
678.       return (ret);

crypto/bn/bn_ctx.c:267:1: Parameter `ctx->stack.depth`
  265.   }
  266.   
  267. > void BN_CTX_end(BN_CTX *ctx)
  268.   {
  269.       CTXDBG_ENTRY("BN_CTX_end", ctx);

crypto/bn/bn_ctx.c:273:27: Call
  271.           ctx->err_stack--;
  272.       else {
  273.           unsigned int fp = BN_STACK_pop(&ctx->stack);
                                   ^
  274.           /* Does this stack frame have anything to release? */
  275.           if (fp < ctx->used)

crypto/bn/bn_ctx.c:351:1: <LHS trace>
349.   }
350.   
351. > static unsigned int BN_STACK_pop(BN_STACK *st)
352.   {
353.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:351:1: Parameter `st->depth`
    349.   }
    350.   
    351. > static unsigned int BN_STACK_pop(BN_STACK *st)
    352.   {
    353.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:353:12: Binary operation: ([0, 2+max(0, ctx->stack.depth)] - 1):unsigned32 by call to `BN_CTX_end` 
    351.   static unsigned int BN_STACK_pop(BN_STACK *st)
    352.   {
    353.       return st->indexes[--(st->depth)];
                      ^
    354.   }
    355.   

static unsigned int BN_STACK_pop(BN_STACK *st)
{
    return st->indexes[--(st->depth)];
}
['static int probable_prime_dh_safe(BIGNUM *p, int bits, const BIGNUM *padd,\n                                  const BIGNUM *rem, BN_CTX *ctx)\n{\n    int i, ret = 0;\n    BIGNUM *t1, *qadd, *q;\n    bits--;\n    BN_CTX_start(ctx);\n    t1 = BN_CTX_get(ctx);\n    q = BN_CTX_get(ctx);\n    qadd = BN_CTX_get(ctx);\n    if (qadd == NULL)\n        goto err;\n    if (!BN_rshift1(qadd, padd))\n        goto err;\n    if (!BN_rand(q, bits, 0, 1))\n        goto err;\n    if (!BN_mod(t1, q, qadd, ctx))\n        goto err;\n    if (!BN_sub(q, q, t1))\n        goto err;\n    if (rem == NULL) {\n        if (!BN_add_word(q, 1))\n            goto err;\n    } else {\n        if (!BN_rshift1(t1, rem))\n            goto err;\n        if (!BN_add(q, q, t1))\n            goto err;\n    }\n    if (!BN_lshift1(p, q))\n        goto err;\n    if (!BN_add_word(p, 1))\n        goto err;\n loop:\n    for (i = 1; i < NUMPRIMES; i++) {\n        if ((BN_mod_word(p, (BN_ULONG)primes[i]) == 0) ||\n            (BN_mod_word(q, (BN_ULONG)primes[i]) == 0)) {\n            if (!BN_add(p, p, padd))\n                goto err;\n            if (!BN_add(q, q, qadd))\n                goto err;\n            goto loop;\n        }\n    }\n    ret = 1;\n err:\n    BN_CTX_end(ctx);\n    bn_check_top(p);\n    return (ret);\n}', 'void BN_CTX_start(BN_CTX *ctx)\n{\n    CTXDBG_ENTRY("BN_CTX_start", ctx);\n    if (ctx->err_stack || ctx->too_many)\n        ctx->err_stack++;\n    else if (!BN_STACK_push(&ctx->stack, ctx->used)) {\n        BNerr(BN_F_BN_CTX_START, BN_R_TOO_MANY_TEMPORARY_VARIABLES);\n        ctx->err_stack++;\n    }\n    CTXDBG_EXIT(ctx);\n}', 'void BN_CTX_end(BN_CTX *ctx)\n{\n    CTXDBG_ENTRY("BN_CTX_end", ctx);\n    if (ctx->err_stack)\n        ctx->err_stack--;\n    else {\n        unsigned int fp = BN_STACK_pop(&ctx->stack);\n        if (fp < ctx->used)\n            BN_POOL_release(&ctx->pool, ctx->used - fp);\n        ctx->used = fp;\n        ctx->too_many = 0;\n    }\n    CTXDBG_EXIT(ctx);\n}', 'static unsigned int BN_STACK_pop(BN_STACK *st)\n{\n    return st->indexes[--(st->depth)];\n}']