Revision: 514
http://www.exim.org/viewvc/pcre2?view=rev&revision=514
Author: zherczeg
Date: 2016-05-19 19:09:07 +0100 (Thu, 19 May 2016)
Log Message:
-----------
A racing condition is fixed in JIT reported by Mozilla.
Modified Paths:
--------------
code/trunk/ChangeLog
code/trunk/src/sljit/sljitUtils.c
Modified: code/trunk/ChangeLog
===================================================================
--- code/trunk/ChangeLog 2016-05-14 16:35:20 UTC (rev 513)
+++ code/trunk/ChangeLog 2016-05-19 18:09:07 UTC (rev 514)
@@ -106,7 +106,9 @@
"private" knowledge of the data structures. This is unnecessary; the code has
been re-factored and no longer includes pcre2_internal.h.
+25. A racing condition is fixed in JIT reported by Mozilla.
+
Version 10.21 12-January-2016
-----------------------------
Modified: code/trunk/src/sljit/sljitUtils.c
===================================================================
--- code/trunk/src/sljit/sljitUtils.c 2016-05-14 16:35:20 UTC (rev 513)
+++ code/trunk/src/sljit/sljitUtils.c 2016-05-19 18:09:07 UTC (rev 514)
@@ -182,7 +182,10 @@
static SLJIT_INLINE sljit_s32 open_dev_zero(void)
{
pthread_mutex_lock(&dev_zero_mutex);
- dev_zero = open("/dev/zero", O_RDWR);
+ /* The dev_zero might be initialized by another thread during the waiting. */
+ if (dev_zero < 0) {
+ dev_zero = open("/dev/zero", O_RDWR);
+ }
pthread_mutex_unlock(&dev_zero_mutex);
return dev_zero < 0;
}
