Date: Thu, 11 Jul 2002 22:45:24 -0700 (PDT) From: "Crist J. Clark" <cjc@FreeBSD.org> To: FreeBSD-gnats-submit@FreeBSD.org Subject: bin/40471: chpass(1) -a option broken in CURRENT Message-ID: <200207120545.g6C5jOx1044049@blossom.cjclark.org>
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>Number: 40471
>Category: bin
>Synopsis: chpass(1) -a option broken in CURRENT
>Confidential: no
>Severity: serious
>Priority: high
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Thu Jul 11 22:50:01 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Crist J. Clark
>Release: FreeBSD 5.0-CURRENT i386
>Organization:
>Environment:
FreeBSD 5.0-CURRENT.
>Description:
The -a option for chpass(1) is broken. chpass(1) will SIGSEGV
and die when a NULL pointer is referenced. This is due to the fact
that when YP is #defined, the following,
#ifdef YP
if ((pw->pw_fields & _PWF_SOURCE) == _PWF_NIS) {
Code is run unconditionally. But in the '-a' case, we have not looked
up a struct passwd pw yet, and pw == NULL.
>How-To-Repeat:
# chpass -a 'test1:*:666:666::0:0: & User:/nonexistent:/nonexistent'
Segmentation fault
#
>Fix:
We need a way to figure out the 'master_mode' when we have not
yet loaded pw.
>Release-Note:
>Audit-Trail:
>Unformatted:
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