Appendfile: release regex-match store every thousand files. Bug 3047

[exim.git] / src / src / exim.c

diff --git a/src/src/exim.c b/src/src/exim.c
index 4473373b3397d55b10ce8f749c3901af1d6b9c23..e5b72f11ae8442603507279b8681b86e8e5d03d2 100644 (file)
--- a/src/src/exim.c
+++ b/src/src/exim.c
@@ -49,6 +49,8 @@ optimize out the tail recursion and so not make them too expensive. */
 static void *
 function_store_malloc(PCRE2_SIZE size, void * tag)
 {
+if (size > INT_MAX)
+  log_write(0, LOG_MAIN|LOG_PANIC_DIE, "excessive memory alloc request");
 return store_malloc((int)size);
 }
 
@@ -63,12 +65,15 @@ if (block) store_free(block);
 static void *
 function_store_get(PCRE2_SIZE size, void * tag)
 {
+if (size > INT_MAX)
+  log_write(0, LOG_MAIN|LOG_PANIC_DIE, "excessive memory alloc request");
 return store_get((int)size, GET_UNTAINTED);    /* loses track of taint */
 }
 
 static void
 function_store_nullfree(void * block, void * tag)
 {
+/* We cannot free memory allocated using store_get() */
 }
 
 
@@ -3688,7 +3693,7 @@ on the second character (the one after '-'), to save some effort. */
     in all cases provided there are no further characters in this
     argument. */
 
-      alloc_onetime_qrunner();
+      if (!qrunners) alloc_onetime_qrunner();
       qrunners->queue_2stage = f.queue_2stage;
       if (*argrest)
        for (int i = 0; i < nelem(rsopts); i++)