src/winsup/cygwin ChangeLog path.cc release/1.7.21

[corinna@cygwin.com]

CVSROOT:	/cvs/src
Module name:	src
Changes by:	corinna@sourceware.org	2013-06-12 17:45:42

Modified files:
	winsup/cygwin  : ChangeLog path.cc 
Added files:
	winsup/cygwin/release: 1.7.21 

Log message:
	* path.cc (normalize_posix_path): Fix long-standing problem which
	allows to access files via ".." using an invalid POSIX path.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/ChangeLog.diff?cvsroot=src&r1=1.6157&r2=1.6158
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/path.cc.diff?cvsroot=src&r1=1.677&r2=1.678
http://sourceware.org/cgi-bin/cvsweb.cgi/src/winsup/cygwin/release/1.7.21.diff?cvsroot=src&r1=NONE&r2=1.1