glibc/glibc-rh1650571.patch

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commit e4e4fde51a309801af5eed72d3494cbf4b7737aa
Author: Paul Eggert <eggert@cs.ucla.edu>
Date: Tue Sep 18 15:02:10 2018 -0700
Fix tzfile low-memory assertion failure
[BZ #21716]
* time/tzfile.c (__tzfile_read): Check for memory exhaustion
when registering time zone abbreviations.
diff --git a/time/tzfile.c b/time/tzfile.c
index 2a385b92bcdefec0..ea6e94030392fc75 100644
--- a/time/tzfile.c
+++ b/time/tzfile.c
@@ -410,7 +410,8 @@ __tzfile_read (const char *file, size_t extra, char **extrap)
/* First "register" all timezone names. */
for (i = 0; i < num_types; ++i)
- (void) __tzstring (&zone_names[types[i].idx]);
+ if (__tzstring (&zone_names[types[i].idx]) == NULL)
+ goto ret_free_transitions;
/* Find the standard and daylight time offsets used by the rule file.
We choose the offsets in the types of each flavor that are