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Date: Fri, 9 Aug 1996 19:29:23 +0200
From: Zahemszky Gabor <zgabor@code.hu>
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To: FreeBSD-gnats-submit@freebsd.org
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Subject: kern/1487: bug in exec(2)
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>Number:         1487
>Category:       kern
>Synopsis:       bug in exec(2)
>Confidential:   yes
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Aug  9 10:20:02 PDT 1996
>Last-Modified:
>Originator:     Zahemszky Gabor
>Organization:
>Release:        FreeBSD 2.1.0-RELEASE i386
>Environment:

	2.1R from Walnut Creek CD

>Description:

	If there is a file, which named as a directory in the PATH, some
	programs, that use the exec... system call, failed	

>How-To-Repeat:

	$ export PATH=/root/bin:/bin:/usr/bin
	$ cd ~root
	$ rm bin ; rmdir bin ; touch bin
	$ rm /usr/share/man/cat1/error.1.gz
	$ man error # it has to be such a manual, which has to creat
	Formatting page, please wait...groff: couldn't exec troff: Not a
	directory
	groff: couldn't exec grotty: Not a directory
	Done
	$ rm /usr/share/man/cat1/error.gz.1
	$ rm ~root/bin
	$ man error
	Formatting page, please wait ...
	(and the normal way, I get the manual page)
	$

	If we try it as normal user, chsh/chpass/chfn exiting, too:
	(and maybe some other commands)

	$ chsh # or chfn or chpass
	commandname: vi: undefined error: 0
	commandname: /etc/master.passwd: unchanged



>Fix:
	
	

>Audit-Trail:
>Unformatted: