From 14dbc6e6ec9900b2e06a04d2612de37ccd564dfc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Carlo=20Marcelo=20Arenas=20Bel=C3=B3n?= <carenas@gmail.com>
Date: Thu, 6 Jan 2022 05:46:43 -0800
Subject: [PATCH] jit: use correct type when checking for max value (#73)
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eb42305f (jit: avoid integer wraparound in stack size definition (#42),
2021-11-19) introduces a check to avoid an integer overflow when
allocating stack size for JIT.

Unfortunately the maximum value was using PCRE2_SIZE_MAX, eventhough
the variable is of type size_t, so correct it.

Practically; the issue shouldn't affect the most common configurations
where both values are the same, and it will be unlikely that there would
be a configuration where PCRE2_SIZE_MAX > SIZE_MAX, hence the mistake
is unlikely to have reintroduced the original bug and this change should
be therefore mostly equivalent.

Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com>

Conflict:NA
Reference:https://github.com/PhilipHazel/pcre2/commit/14dbc6e6ec9900b2e06a04d2612de37ccd564dfc
---
 src/pcre2_jit_misc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/pcre2_jit_misc.c b/src/pcre2_jit_misc.c
index d532df9..e57afad 100644
--- a/src/pcre2_jit_misc.c
+++ b/src/pcre2_jit_misc.c
@@ -135,7 +135,7 @@ return NULL;
 
 pcre2_jit_stack *jit_stack;
 
-if (startsize == 0 || maxsize == 0 || maxsize > PCRE2_SIZE_MAX - STACK_GROWTH_RATE)
+if (startsize == 0 || maxsize == 0 || maxsize > SIZE_MAX - STACK_GROWTH_RATE)
   return NULL;
 if (startsize > maxsize)
   startsize = maxsize;
-- 
2.27.0

