[php-src] master: `abort()` in OOM case

Author: Florian Engelhardt (realFlowControl)
Committer: Arnaud Le Blanc (arnaud-lb)
Date: 2026-07-13T12:41:56+02:00

Commit: https://github.com/php/php-src/commit/cf3c803b506709c2af84c2be84e7746a97868a3e
Raw diff: https://github.com/php/php-src/commit/cf3c803b506709c2af84c2be84e7746a97868a3e.diff

`abort()` in OOM case

Closes GH-22637

Changed paths:
  M  NEWS
  M  UPGRADING
  M  Zend/zend_alloc.c


Diff:

diff --git a/NEWS b/NEWS
index b2544cb5abdf..2fa31ab34fde 100644
--- a/NEWS
+++ b/NEWS
@@ -11,6 +11,7 @@ PHP                                                                        NEWS
     iterator). (iliaal)
   . Lock unmodified readonly properties for modification after clone-with.
     (NickSdot)
+  . abort() instead of exit() on hard OOM. (realFlowControl)
 
 - Calendar:
   . Fixed bug GH-22602 (gregoriantojd() and juliantojd() integer overflow with
diff --git a/UPGRADING b/UPGRADING
index a809687d1961..729dfed0363e 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -533,6 +533,10 @@ PHP 8.6 UPGRADE NOTES
 13. Other Changes
 ========================================
 
+- Core:
+  . In case of a hard OOM PHP now calls abort() instead of exit(1), changing
+    the exit code to 134 and possibly creating a core dump.
+
 ========================================
 14. Performance Improvements
 ========================================
diff --git a/Zend/zend_alloc.c b/Zend/zend_alloc.c
index 0b040743abf1..5ff2860d8223 100644
--- a/Zend/zend_alloc.c
+++ b/Zend/zend_alloc.c
@@ -2974,7 +2974,7 @@ ZEND_API void refresh_memory_manager(void)
 static ZEND_COLD ZEND_NORETURN void zend_out_of_memory(void)
 {
 	fprintf(stderr, "Out of memory\n");
-	exit(1);
+	abort();
 }
 
 #if ZEND_MM_CUSTOM