Re: kern/119564: commit references a PR

[dfilter service]

The following reply was made to PR kern/119564; it has been noted by GNATS.

From: dfilter@... (dfilter service)
To: bug-followup@...
Cc:  
Subject: Re: kern/119564: commit references a PR
Date: Sat,  7 Nov 2009 21:46:44 +0000 (UTC)

 Author: attilio
 Date: Sat Nov  7 21:46:34 2009
 New Revision: 199024
 URL: http://svn.freebsd.org/changeset/base/199024
 
 Log:
   Use a safety belt for cases where corrupted narg can be passed to the
   ktrsyscall(). print_number() does decrement the number of arguments,
   leading to infinite loops for negative values.
   
   Reported by: Patrick Lamaiziere <patpr at davenulle dot org>,
    Jonathan Pascal <jkpyvxmzsa at mailinator dot com>
   Submitted by: jh
   PR: bin/120055, kern/119564
   MFC: 1 week
 
 Modified:
   head/usr.bin/kdump/kdump.c
 
 Modified: head/usr.bin/kdump/kdump.c
 ==============================================================================
 --- head/usr.bin/kdump/kdump.c Sat Nov  7 21:28:21 2009 (r199023)
 +++ head/usr.bin/kdump/kdump.c Sat Nov  7 21:46:34 2009 (r199024)
 @@ -799,7 +799,7 @@ ktrsyscall(struct ktr_syscall *ktr)
  narg--;
  }
  }
 - while (narg) {
 + while (narg > 0) {
  print_number(ip,narg,c);
  }
  (void)putchar(')');
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