1 files changed, 18 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 01e137d2fcc..bf297616e82 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,3 +1,21 @@
+2012-05-02  Paul Eggert  <eggert@cs.ucla.edu>
+
+        Fix race conditions involving setenv, gmtime, localtime, asctime.
+        Without this fix, interrupts could mess up code that uses these
+        nonreentrant functions, since setting TZ invalidates existing
+        tm_zone or tzname values, and since most of these functions return
+        pointers to static storage.
+        * editfns.c (format_time_string, Fdecode_time, Fencode_time)
+        (Fcurrent_time_string, Fcurrent_time_zone, Fset_time_zone_rule):
+        Grow the critical sections to include not just invoking
+        localtime/gmtime, but also accessing these functions' results
+        including their tm_zone values if any, and any related TZ setting.
+        (format_time_string): Last arg is now struct tm *, not struct tm **,
+        so that the struct tm is saved in the critical section.  All
+        callers changed.  Simplify allocation of initial buffer, partly
+        motivated by the fact that memory allocation needs to be outside
+        the critical section.
+
 2012-05-02  Dmitry Antipov  <dmantipov@yandex.ru>
 
         * intervals.c (adjust_intervals_for_insertion): Initialize `newi'