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From: Tobias Geerinckx-Rice <me@tobias.gr>
Date: Thu, 01 Aug 2019 21:12:52 +0200
Subject: [PATCH] gnu: pcre2: Fix jit_match crash.
Fixes <https://bugs.exim.org/show_bug.cgi?id=2421>, reported as a ‘secrity
problem’.
Copied verbatim from upstream[0].
[0]: https://vcs.pcre.org/pcre2/code/trunk/src/pcre2_jit_compile.c?view=patch&r1=1089&r2=1092&pathrev=1092
--- trunk/src/pcre2_jit_compile.c 2019/05/10 13:15:20 1089
+++ trunk/src/pcre2_jit_compile.c 2019/05/13 16:38:18 1092
@@ -8571,7 +8571,10 @@
PCRE2_SPTR bptr;
uint32_t c;
-GETCHARINC(c, cc);
+/* Patch by PH */
+/* GETCHARINC(c, cc); */
+
+c = *cc++;
#if PCRE2_CODE_UNIT_WIDTH == 32
if (c >= 0x110000)
return NULL;
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