Re: kern/50511 (npf fails to load tree file above certain size)

[Geoff Wing <gcw%pobox.com@localhost>]

The following reply was made to PR kern/50511; it has been noted by GNATS.

From: Geoff Wing <gcw%pobox.com@localhost>
To: gnats-bugs%netbsd.org@localhost
Cc: 
Subject: Re: kern/50511 (npf fails to load tree file above certain size)
Date: Thu, 18 Aug 2016 16:35:58 +1000

 You can change it to allow large allocations but I presume there is
 potential for kernel memory exhaustion by user programs.  
 
 Index: common/lib/libprop/prop_kern.c
 ===================================================================
 RCS file: /cvsroot/src/common/lib/libprop/prop_kern.c,v
 retrieving revision 1.19
 diff -u -r1.19 prop_kern.c
 --- common/lib/libprop/prop_kern.c	11 May 2015 16:48:34 -0000	1.19
 +++ common/lib/libprop/prop_kern.c	18 Aug 2016 06:31:56 -0000
 @@ -408,7 +408,7 @@
  	int error;
  
  	if (pref->pref_len >= prop_object_copyin_limit)
 -		return EINVAL;
 +		printf("_prop_object_copyin: large requested object size (%u)\n", (unsigned int) pref->pref_len);
  
  	/*
  	 * Allocate an extra byte so we can guarantee NUL-termination.