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Date:      Thu, 14 May 2015 20:14:35 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-bugs@FreeBSD.org
Subject:   [Bug 192528] pwd_mkdb fails if /etc/shells contains duplicates
Message-ID:  <bug-192528-8-4STY5SS47o@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-192528-8@https.bugs.freebsd.org/bugzilla/>
References:  <bug-192528-8@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=192528

--- Comment #3 from tmwalaszek@gmail.com ---
Hi,
Problem is in function _local_initshells in file lib/libc/gen/getusershell.c

Function is reading /etc/shells and put every shell path to line[MAXPATHLEN +
1]
It looks like this '/bin/csh\0/usr/local/bin/zsh\0/usr/local/bin/bash', it does
not clean this array (and not set pointer at the beggining) on every iteration
so if we have many lines in /etc/shells it will overflow.

Simple patch is in the attachment. Works for me ;)

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