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From: John Baldwin <jhb@FreeBSD.org>
Date: Fri, 23 Oct 2009 15:14:54 +0000 (UTC)
To: cvs-src-old@freebsd.org
X-FreeBSD-CVS-Branch: HEAD
Subject: cvs commit: src/sys/kern kern_exec.c kern_ktrace.c subr_bus.c
 subr_taskqueue.c src/sys/sys interrupt.h
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jhb         2009-10-23 15:14:54 UTC

  FreeBSD src repository

  Modified files:
    sys/kern             kern_exec.c kern_ktrace.c subr_bus.c 
                         subr_taskqueue.c 
    sys/sys              interrupt.h 
  Log:
  SVN rev 198411 on 2009-10-23 15:14:54Z by jhb
  
  - Fix several off-by-one errors when using MAXCOMLEN.  The p_comm[] and
    td_name[] arrays are actually MAXCOMLEN + 1 in size and a few places that
    created shadow copies of these arrays were just using MAXCOMLEN.
  - Prefer using sizeof() of an array type to explicit constants for the
    array length in a few places.
  - Ensure that all of p_comm[] and td_name[] is always zero'd during
    execve() to guard against any possible information leaks.  Previously
    trailing garbage in p_comm[] could be leaked to userland in ktrace
    record headers via td_name[].
  
  Reviewed by:    bde
  
  Revision  Changes    Path
  1.340     +7 -13     src/sys/kern/kern_exec.c
  1.131     +6 -1      src/sys/kern/kern_ktrace.c
  1.234     +1 -1      src/sys/kern/subr_bus.c
  1.52      +2 -2      src/sys/kern/subr_taskqueue.c
  1.48      +3 -3      src/sys/sys/interrupt.h