[coreutils/f20] fix the date crash or infloop in TZ= parsing (#1069657), colorls - unset unnecessary envvars and fix

Ondrej Vasik ovasik at fedoraproject.org
Wed Mar 5 12:39:28 UTC 2014


commit 505bcfb22f0ce9a4b2ba010885e7a74434b1554f
Author: Ondřej Vašík <ovasik at redhat.com>
Date:   Wed Mar 5 13:39:16 2014 +0100

    fix the date crash or infloop in TZ= parsing (#1069657), colorls - unset unnecessary envvars and fix issue with noclobber set

 coreutils-8.22-datetzcrash.patch |   67 ++++++++++++++++++++++++++++++++++++++
 coreutils-colorls.csh            |    4 ++-
 coreutils-colorls.sh             |    4 ++-
 coreutils.spec                   |    6 +++
 4 files changed, 79 insertions(+), 2 deletions(-)
---
diff --git a/coreutils-8.22-datetzcrash.patch b/coreutils-8.22-datetzcrash.patch
new file mode 100644
index 0000000..44481af
--- /dev/null
+++ b/coreutils-8.22-datetzcrash.patch
@@ -0,0 +1,67 @@
+diff -urNp coreutils-8.22-orig/gnulib-tests/test-parse-datetime.c coreutils-8.22/gnulib-tests/test-parse-datetime.c
+--- coreutils-8.22-orig/gnulib-tests/test-parse-datetime.c	2013-12-04 15:53:33.000000000 +0100
++++ coreutils-8.22/gnulib-tests/test-parse-datetime.c	2014-03-02 20:33:25.691688592 +0100
+@@ -419,5 +419,21 @@ main (int argc _GL_UNUSED, char **argv)
+      starting with a high-bit-set byte would be treated like "0".  */
+   ASSERT ( ! parse_datetime (&result, "\xb0", &now));
+ 
++  /* Exercise TZ="" parsing code.  */
++  /* These two would infloop or segfault before Feb 2014.  */
++  ASSERT ( ! parse_datetime (&result, "TZ=\"\"\"", &now));
++  ASSERT ( ! parse_datetime (&result, "TZ=\"\" \"", &now));
++  /* Exercise invalid patterns.  */
++  ASSERT ( ! parse_datetime (&result, "TZ=\"", &now));
++  ASSERT ( ! parse_datetime (&result, "TZ=\"\\\"", &now));
++  ASSERT ( ! parse_datetime (&result, "TZ=\"\\n", &now));
++  ASSERT ( ! parse_datetime (&result, "TZ=\"\\n\"", &now));
++  /* Exercise valid patterns.  */
++  ASSERT (   parse_datetime (&result, "TZ=\"\"", &now));
++  ASSERT (   parse_datetime (&result, "TZ=\"\" ", &now));
++  ASSERT (   parse_datetime (&result, " TZ=\"\"", &now));
++  ASSERT (   parse_datetime (&result, "TZ=\"\\\\\"", &now));
++  ASSERT (   parse_datetime (&result, "TZ=\"\\\"\"", &now));
++
+   return 0;
+ }
+diff -urNp coreutils-8.22-orig/lib/parse-datetime.y coreutils-8.22/lib/parse-datetime.y
+--- coreutils-8.22-orig/lib/parse-datetime.y	2013-12-04 15:53:33.000000000 +0100
++++ coreutils-8.22/lib/parse-datetime.y	2014-03-02 20:32:23.246124920 +0100
+@@ -1303,8 +1303,6 @@ parse_datetime (struct timespec *result,
+             char tz1buf[TZBUFSIZE];
+             bool large_tz = TZBUFSIZE < tzsize;
+             bool setenv_ok;
+-            /* Free tz0, in case this is the 2nd or subsequent time through. */
+-            free (tz0);
+             tz0 = get_tz (tz0buf);
+             z = tz1 = large_tz ? xmalloc (tzsize) : tz1buf;
+             for (s = tzbase; *s != '"'; s++)
+@@ -1316,7 +1314,12 @@ parse_datetime (struct timespec *result,
+             if (!setenv_ok)
+               goto fail;
+             tz_was_altered = true;
++
+             p = s + 1;
++            while (c = *p, c_isspace (c))
++              p++;
++
++            break;
+           }
+     }
+ 
+diff -urNp coreutils-8.22-orig/tests/misc/date.pl coreutils-8.22/tests/misc/date.pl
+--- coreutils-8.22-orig/tests/misc/date.pl	2013-12-04 15:48:30.000000000 +0100
++++ coreutils-8.22/tests/misc/date.pl	2014-03-02 20:30:43.200328295 +0100
+@@ -287,6 +287,13 @@ my @Tests =
+       {ERR => "date: invalid date '\\260'\n"},
+       {EXIT => 1},
+      ],
++
++     # From coreutils-5.3.0 to 8.22 inclusive
++     # this would either infinite loop or crash
++     ['invalid-TZ-crash', "-d 'TZ=\"\"\"'",
++      {ERR => "date: invalid date 'TZ=\"\"\"'\n"},
++      {EXIT => 1},
++     ],
+     );
+ 
+ # Repeat the cross-dst test, using Jan 1, 2005 and every interval from 1..364.
diff --git a/coreutils-colorls.csh b/coreutils-colorls.csh
index d02fe85..11282ba 100755
--- a/coreutils-colorls.csh
+++ b/coreutils-colorls.csh
@@ -33,7 +33,7 @@ if ( ! -e "$COLORS" ) exit
 
 set _tmp="`mktemp .colorlsXXX --tmpdir=/tmp`"
 
-if ( "$INCLUDE" != '' ) cat "$INCLUDE" > $_tmp
+if ( "$INCLUDE" != '' ) cat "$INCLUDE" >> $_tmp
 grep -v '^INCLUDE' "$COLORS" >> $_tmp
 
 eval "`dircolors -c $_tmp`"
@@ -48,6 +48,8 @@ if ( "$color_none" != '' ) then
 endif
 unset color_none
 unset _tmp
+unset INCLUDE
+unset COLORS
 
 finish:
 alias ll 'ls -l --color=auto'
diff --git a/coreutils-colorls.sh b/coreutils-colorls.sh
index 7d27940..5957d71 100755
--- a/coreutils-colorls.sh
+++ b/coreutils-colorls.sh
@@ -35,7 +35,7 @@ if [ -z "$USER_LS_COLORS" ]; then
 
   TMP="`mktemp .colorlsXXX --tmpdir=/tmp`"
 
-  [ -e "$INCLUDE" ] && cat "$INCLUDE" > $TMP
+  [ -e "$INCLUDE" ] && cat "$INCLUDE" >> $TMP
   grep -v '^INCLUDE' "$COLORS" >> $TMP
 
   eval "`dircolors --sh $TMP 2>/dev/null`"
@@ -46,6 +46,8 @@ if [ -z "$USER_LS_COLORS" ]; then
   grep -qi "^COLOR.*none" $COLORS >/dev/null 2>/dev/null && return
 fi
 
+unset TMP COLORS INCLUDE
+
 alias ll='ls -l --color=auto' 2>/dev/null
 alias l.='ls -d .* --color=auto' 2>/dev/null
 alias ls='ls --color=auto' 2>/dev/null
diff --git a/coreutils.spec b/coreutils.spec
index 4b1b41f..a145329 100644
--- a/coreutils.spec
+++ b/coreutils.spec
@@ -16,6 +16,7 @@ Source106:  coreutils-colorls.csh
 Patch1: coreutils-8.21-install-strip.patch
 Patch2: coreutils-aarch64-longlong.patch
 Patch3: coreutils-8.21-ln-updateexisting.patch
+Patch4: coreutils-8.22-datetzcrash.patch
 
 # Our patches
 #general patch to workaround koji build system issues
@@ -131,6 +132,7 @@ the old GNU fileutils, sh-utils, and textutils packages.
 %patch1 -p1 -b .strip
 %patch2 -p1 -b .aarch64
 %patch3 -p1 -b .exist
+%patch4 -p1 -b .tzcrash
 
 # Our patches
 %patch100 -p1 -b .configure
@@ -379,6 +381,10 @@ fi
 %changelog
 * Wed Mar 05 2014 Ondrej Vasik <ovasik at redhat.com> 8.21-21
 - ln: --relative: fix updating of existing symlinks (#1072103)
+- fix possible colorls.csh script errors for tcsh with
+  noclobber set and entered include file (#1027279)
+- unset the unnecessary envvars after colorls scripts(#1051703)
+- fix the date crash or infloop in TZ="" parsing (#1069657)
 
 * Mon Jan 06 2014 Ondrej Oprala <ooprala at redhat.com> 8.21-20
 - fix sorting by non-first field (#1003544)


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