Date: Fri, 27 Nov 2009 17:53:49 +0000 (UTC) From: Tony Finch <fanf@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/usr.bin/unifdef unifdef.c Message-ID: <200911271754.nARHs777000598@repoman.freebsd.org>
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fanf 2009-11-27 17:53:49 UTC
FreeBSD src repository
Modified files:
usr.bin/unifdef unifdef.c
Log:
SVN rev 199867 on 2009-11-27 17:53:49Z by fanf
unifdef: fix invalid array access when nesting limit exceeded
If the number of nested #if blocks exceeds 64, nest() increments
the nesting depth and then reports an error. The message includes
the line number for the start of the current #if block, which is
read from past the end of the relevant array.
Avoid the out-of-bounds read by reporting the error and exiting
before the nesting depth has a chance to increase.
Submitted by: Jonathan Nieder <jrnieder@gmail.com>
Revision Changes Path
1.25 +8 -4 src/usr.bin/unifdef/unifdef.c
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