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authorRichard Sandiford <richard@codesourcery.com>2013-10-18 20:58:31 +0000
committerJoseph Myers <joseph@codesourcery.com>2013-10-18 20:58:31 +0000
commit5abe0682337db0aa15e2adf027d10e5b75b31c5a (patch)
treec2851d5985a8401d4e134d8a173e717f706ca25e
parentc7738d0822fd34e95ebf01ce8fa8ea397bc4843d (diff)
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Fix localedef collation handling of <U0000> (bug 15948).
-rw-r--r--ChangeLog8
-rw-r--r--NEWS6
-rw-r--r--locale/programs/ld-collate.c4
3 files changed, 15 insertions, 3 deletions
diff --git a/ChangeLog b/ChangeLog
index c9fd07dee8..1078b357cb 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2013-10-18  Richard Sandiford  <richard@codesourcery.com>
+	    Joseph Myers  <joseph@codesourcery.com
+
+	[BZ #15948]
+	* locale/programs/ld-collate.c (new_element): Handle <U0000> as a
+	single character.
+	(add_to_tablewc): Assert sequence of wide characters is nonempty.
+
 2013-10-18  Siddhesh Poyarekar  <siddhesh@redhat.com>
 
 	* elf/tst-tls-dlinfo.c: Don't include tls.h.
diff --git a/NEWS b/NEWS
index 0efdde5561..212859c2dd 100644
--- a/NEWS
+++ b/NEWS
@@ -14,9 +14,9 @@ Version 2.19
   15609, 15610, 15632, 15640, 15672, 15680, 15681, 15723, 15734, 15735,
   15736, 15748, 15749, 15754, 15760, 15764, 15797, 15844, 15847, 15849,
   15855, 15856, 15857, 15859, 15867, 15886, 15887, 15890, 15892, 15893,
-  15895, 15897, 15905, 15909, 15919, 15921, 15923, 15939, 15963, 15966,
-  15895, 15897, 15905, 15909, 15919, 15921, 15923, 15939, 15963, 15966,
-  15988, 16032, 16034, 16036, 16041.
+  15895, 15897, 15905, 15909, 15919, 15921, 15923, 15939, 15948, 15963,
+  15966, 15895, 15897, 15905, 15909, 15919, 15921, 15923, 15939, 15963,
+  15966, 15988, 16032, 16034, 16036, 16041.
 
 * CVE-2012-4412 The strcoll implementation caches indices and rules for
   large collation sequences to optimize multiple passes.  This cache
diff --git a/locale/programs/ld-collate.c b/locale/programs/ld-collate.c
index d88a6de56e..f7ae09792a 100644
--- a/locale/programs/ld-collate.c
+++ b/locale/programs/ld-collate.c
@@ -352,6 +352,9 @@ new_element (struct locale_collate_t *collate, const char *mbs, size_t mbslen,
     {
       size_t nwcs = wcslen ((wchar_t *) wcs);
       uint32_t zero = 0;
+      /* Handle <U0000> as a single character.  */
+      if (nwcs == 0)
+	nwcs = 1;
       obstack_grow (&collate->mempool, wcs, nwcs * sizeof (uint32_t));
       obstack_grow (&collate->mempool, &zero, sizeof (uint32_t));
       newp->wcs = (uint32_t *) obstack_finish (&collate->mempool);
@@ -2078,6 +2081,7 @@ add_to_tablewc (uint32_t ch, struct element_t *runp)
 	      weightidx = output_weightwc (atwc.weightpool, atwc.collate,
 					   runp);
 
+	      assert (runp->nwcs > 0);
 	      added = (1 + 1 + runp->nwcs - 1) * sizeof (int32_t);
 	      if (sizeof (int) == sizeof (int32_t))
 		obstack_make_room (atwc.extrapool, added);