crypto/ec/ecp_oct.c:258: error: INTEGER_OVERFLOW_L2
  ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end`.
Showing all 7 steps of the trace


crypto/ec/ecp_oct.c:154:1: Parameter `ctx->stack.depth`
152.   }
153.   
154. > size_t ec_GFp_simple_point2oct(const EC_GROUP *group, const EC_POINT *point,
155.                                  point_conversion_form_t form,
156.                                  unsigned char *buf, size_t len, BN_CTX *ctx)

crypto/ec/ecp_oct.c:258:9: Call
256.   
257.       if (used_ctx)
258.           BN_CTX_end(ctx);
               ^
259.       BN_CTX_free(new_ctx);
260.       return ret;

crypto/bn/bn_ctx.c:185:1: Parameter `ctx->stack.depth`
  183.   }
  184.   
  185. > void BN_CTX_end(BN_CTX *ctx)
  186.   {
  187.       if (ctx == NULL)

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

crypto/bn/bn_ctx.c:268:1: <LHS trace>
266.   }
267.   
268. > static unsigned int BN_STACK_pop(BN_STACK *st)
269.   {
270.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:268:1: Parameter `st->depth`
    266.   }
    267.   
    268. > static unsigned int BN_STACK_pop(BN_STACK *st)
    269.   {
    270.       return st->indexes[--(st->depth)];

crypto/bn/bn_ctx.c:270:12: Binary operation: ([0, +oo] - 1):unsigned32 by call to `BN_CTX_end` 
    268.   static unsigned int BN_STACK_pop(BN_STACK *st)
    269.   {
    270.       return st->indexes[--(st->depth)];
                      ^
    271.   }
    272.   
