crypto/ec/ecp_smpl.c:971: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end`.
Showing all 15 steps of the trace


crypto/ec/ecp_smpl.c:834:1: Parameter `ctx->pool.used`
832.   }
833.   
834. > int ec_GFp_simple_dbl(const EC_GROUP *group, EC_POINT *r, const EC_POINT *a,
835.                         BN_CTX *ctx)
836.   {

crypto/ec/ecp_smpl.c:862:10: Call
860.   
861.       BN_CTX_start(ctx);
862.       n0 = BN_CTX_get(ctx);
                ^
863.       n1 = BN_CTX_get(ctx);
864.       n2 = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:271:1: Parameter `ctx->pool.used`
  269.   }
  270.   
  271. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  272.   {
  273.       BIGNUM *ret;

crypto/ec/ecp_smpl.c:863:10: Call
861.       BN_CTX_start(ctx);
862.       n0 = BN_CTX_get(ctx);
863.       n1 = BN_CTX_get(ctx);
                ^
864.       n2 = BN_CTX_get(ctx);
865.       n3 = BN_CTX_get(ctx);

crypto/bn/bn_ctx.c:271:1: Parameter `ctx->pool.used`
  269.   }
  270.   
  271. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  272.   {
  273.       BIGNUM *ret;

crypto/ec/ecp_smpl.c:864:10: Call
862.       n0 = BN_CTX_get(ctx);
863.       n1 = BN_CTX_get(ctx);
864.       n2 = BN_CTX_get(ctx);
                ^
865.       n3 = BN_CTX_get(ctx);
866.       if (n3 == NULL)

crypto/bn/bn_ctx.c:271:1: Parameter `ctx->pool.used`
  269.   }
  270.   
  271. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  272.   {
  273.       BIGNUM *ret;

crypto/ec/ecp_smpl.c:865:10: Call
863.       n1 = BN_CTX_get(ctx);
864.       n2 = BN_CTX_get(ctx);
865.       n3 = BN_CTX_get(ctx);
                ^
866.       if (n3 == NULL)
867.           goto err;

crypto/bn/bn_ctx.c:271:1: Parameter `ctx->pool.used`
  269.   }
  270.   
  271. > BIGNUM *BN_CTX_get(BN_CTX *ctx)
  272.   {
  273.       BIGNUM *ret;

crypto/ec/ecp_smpl.c:971:5: Call
969.   
970.    err:
971.       BN_CTX_end(ctx);
           ^
972.       BN_CTX_free(new_ctx);
973.       return ret;

crypto/bn/bn_ctx.c:254:1: Parameter `ctx->pool.used`
  252.   }
  253.   
  254. > void BN_CTX_end(BN_CTX *ctx)
  255.   {
  256.       CTXDBG_ENTRY("BN_CTX_end", ctx);

crypto/bn/bn_ctx.c:263:13: Call
  261.           /* Does this stack frame have anything to release? */
  262.           if (fp < ctx->used)
  263.               BN_POOL_release(&ctx->pool, ctx->used - fp);
                     ^
  264.           ctx->used = fp;
  265.           /* Unjam "too_many" in case "get" had failed */

crypto/bn/bn_ctx.c:399:1: <LHS trace>
397.   }
398.   
399. > static void BN_POOL_release(BN_POOL *p, unsigned int num)
400.   {
401.       unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;

crypto/bn/bn_ctx.c:399:1: Parameter `p->used`
    397.   }
    398.   
    399. > static void BN_POOL_release(BN_POOL *p, unsigned int num)
    400.   {
    401.       unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;

crypto/bn/bn_ctx.c:401:5: Binary operation: ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end` 
    399.   static void BN_POOL_release(BN_POOL *p, unsigned int num)
    400.   {
    401.       unsigned int offset = (p->used - 1) % BN_CTX_POOL_SIZE;
               ^
    402.   
    403.       p->used -= num;
