From 73417f882ac907a182e1491ead2eecb7c5e559cc Mon Sep 17 00:00:00 2001
From: zherczeg <zherczeg@6239d852-aaf2-0410-a92c-79f79f948069>
Date: Fri, 24 Jan 2020 08:28:23 +0000
Subject: [PATCH] The JIT stack should be freed when the low-level stack
 allocation fails.
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git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@1207 6239d852-aaf2-0410-a92c-79f79f948069
Petr Písař: Ported to 10.34.
---
 src/pcre2_jit_misc.c | 5 +++++

diff --git a/src/pcre2_jit_misc.c b/src/pcre2_jit_misc.c
index efdb055..36abdba 100644
--- a/src/pcre2_jit_misc.c
+++ b/src/pcre2_jit_misc.c
@@ -145,6 +145,11 @@ maxsize = (maxsize + STACK_GROWTH_RATE - 1) & ~(STACK_GROWTH_RATE - 1);
 jit_stack = PRIV(memctl_malloc)(sizeof(pcre2_real_jit_stack), (pcre2_memctl *)gcontext);
 if (jit_stack == NULL) return NULL;
 jit_stack->stack = sljit_allocate_stack(startsize, maxsize, &jit_stack->memctl);
+if (jit_stack->stack == NULL)
+  {
+  jit_stack->memctl.free(jit_stack, jit_stack->memctl.memory_data);
+  return NULL;
+  }
 return jit_stack;
 
 #endif
-- 
2.21.1