crypto/ec/ec_lib.c:520: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end`.
Showing all 19 steps of the trace


crypto/ec/ec_lib.c:492:1: Parameter `ctx->pool.used`
490.   }
491.   
492. > int EC_GROUP_cmp(const EC_GROUP *a, const EC_GROUP *b, BN_CTX *ctx)
493.   {
494.       int r = 0;

crypto/ec/ec_lib.c:513:10: Call
511.   
512.       BN_CTX_start(ctx);
513.       a1 = BN_CTX_get(ctx);
                ^
514.       a2 = BN_CTX_get(ctx);
515.       a3 = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:284:1: Parameter `ctx->pool.used`
  282.   }
  283.   
  284. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  285.   {
  286.       BIGNUM *ret;

crypto/ec/ec_lib.c:514:10: Call
512.       BN_CTX_start(ctx);
513.       a1 = BN_CTX_get(ctx);
514.       a2 = BN_CTX_get(ctx);
                ^
515.       a3 = BN_CTX_get(ctx);
516.       b1 = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:284:1: Parameter `ctx->pool.used`
  282.   }
  283.   
  284. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  285.   {
  286.       BIGNUM *ret;

crypto/ec/ec_lib.c:515:10: Call
513.       a1 = BN_CTX_get(ctx);
514.       a2 = BN_CTX_get(ctx);
515.       a3 = BN_CTX_get(ctx);
                ^
516.       b1 = BN_CTX_get(ctx);
517.       b2 = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:284:1: Parameter `ctx->pool.used`
  282.   }
  283.   
  284. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  285.   {
  286.       BIGNUM *ret;

crypto/ec/ec_lib.c:516:10: Call
514.       a2 = BN_CTX_get(ctx);
515.       a3 = BN_CTX_get(ctx);
516.       b1 = BN_CTX_get(ctx);
                ^
517.       b2 = BN_CTX_get(ctx);
518.       b3 = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:284:1: Parameter `ctx->pool.used`
  282.   }
  283.   
  284. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  285.   {
  286.       BIGNUM *ret;

crypto/ec/ec_lib.c:517:10: Call
515.       a3 = BN_CTX_get(ctx);
516.       b1 = BN_CTX_get(ctx);
517.       b2 = BN_CTX_get(ctx);
                ^
518.       b3 = BN_CTX_get(ctx);
519.       if (!b3) {

crypto/bn/bn_ctx.c:284:1: Parameter `ctx->pool.used`
  282.   }
  283.   
  284. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  285.   {
  286.       BIGNUM *ret;

crypto/ec/ec_lib.c:518:10: Call
516.       b1 = BN_CTX_get(ctx);
517.       b2 = BN_CTX_get(ctx);
518.       b3 = BN_CTX_get(ctx);
                ^
519.       if (!b3) {
520.           BN_CTX_end(ctx);

crypto/bn/bn_ctx.c:284:1: Parameter `ctx->pool.used`
  282.   }
  283.   
  284. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  285.   {
  286.       BIGNUM *ret;

crypto/ec/ec_lib.c:520:9: Call
518.       b3 = BN_CTX_get(ctx);
519.       if (!b3) {
520.           BN_CTX_end(ctx);
               ^
521.           if (ctx_new)
522.               BN_CTX_free(ctx);

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

crypto/bn/bn_ctx.c:276:13: Call
  274.           /* Does this stack frame have anything to release? */
  275.           if (fp < ctx->used)
  276.               BN_POOL_release(&ctx->pool, ctx->used - fp);
                     ^
  277.           ctx->used = fp;
  278.           /* Unjam "too_many" in case "get" had failed */

crypto/bn/bn_ctx.c:435:1: <LHS trace>
433.   }
434.   
435. > static void BN_POOL_release(BN_POOL *p, unsigned int num)
436.   {
437.       unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;

crypto/bn/bn_ctx.c:435:1: Parameter `p->used`
    433.   }
    434.   
    435. > static void BN_POOL_release(BN_POOL *p, unsigned int num)
    436.   {
    437.       unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;

crypto/bn/bn_ctx.c:437:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end` 
    435.   static void BN_POOL_release(BN_POOL *p, unsigned int num)
    436.   {
    437.       unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;
               ^
    438.       p->used -= num;
    439.       while (num--) {
