pcre2: CVE-2022-1586 Out-of-bounds read

Backport from https://github.com/PCRE2Project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a
CVE-2022-1586: pcre2: Out-of-bounds read in compile_xclass_matchingpath in pcre2_jit_compile.c.

(From OE-Core rev: fb6c980105ffd0262517299ab366218c61cc0665)

Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
Signed-off-by: Jeremy A. Puhlman <jpuhlman@mvista.com>
(cherry picked from commit 7519eb1cb624bb576cfe60f7470d40c566818ac3)
Signed-off-by: Jeremy A. Puhlman <jpuhlman@mvista.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 61 insertions, 2 deletions

diff --git a/meta/recipes-support/libpcre/libpcre2/CVE-2022-1586.patch b/meta/recipes-support/libpcre/libpcre2/CVE-2022-1586.patch
new file mode 100644
index 0000000000..10d88d7b73
--- /dev/null
+++ b/meta/recipes-support/libpcre/libpcre2/CVE-2022-1586.patch
@@ -0,0 +1,58 @@
+From e881ed5028622959cf8859c053501fb1b16387f1 Mon Sep 17 00:00:00 2001
+From: Hitendra Prajapati <hprajapati@mvista.com>
+Date: Mon, 23 May 2022 13:52:39 +0530
+Subject: [PATCH] CVE-2022-1586
+
+Upstream-Status: Backport from https://github.com/PCRE2Project/pcre2/commit/50a51cb7e67268e6ad417eb07c9de9bfea5cc55a
+
+Signed-off-by: Hitendra Prajapati <hprajapati@mvista.com>
+---
+ ChangeLog               | 3 +++
+ src/pcre2_jit_compile.c | 2 +-
+ src/pcre2_jit_test.c    | 3 +++
+ 3 files changed, 7 insertions(+), 1 deletion(-)
+
+diff --git a/ChangeLog b/ChangeLog
+index d27542d..cd3da65 100644
+--- a/ChangeLog
++++ b/ChangeLog
+@@ -63,6 +63,9 @@ Version 10.39 29-October-2021
+ 
+   Reformat slightly to make it C89 compatible again.
+ 
++23. Fixed a unicode properrty matching issue in JIT. The character was not
++fully read in caseless matching.
++
+ 
+ Version 10.38 01-October-2021
+ -----------------------------
+diff --git a/src/pcre2_jit_compile.c b/src/pcre2_jit_compile.c
+index db2ce65..5baca9b 100644
+--- a/src/pcre2_jit_compile.c
++++ b/src/pcre2_jit_compile.c
+@@ -7473,7 +7473,7 @@ while (*cc != XCL_END)
+     {
+     SLJIT_ASSERT(*cc == XCL_PROP || *cc == XCL_NOTPROP);
+     cc++;
+-    if (*cc == PT_CLIST)
++    if (*cc == PT_CLIST && *cc == XCL_PROP)
+       {
+       other_cases = PRIV(ucd_caseless_sets) + cc[1];
+       while (*other_cases != NOTACHAR)
+diff --git a/src/pcre2_jit_test.c b/src/pcre2_jit_test.c
+index 8dee16e..7bb307e 100644
+--- a/src/pcre2_jit_test.c
++++ b/src/pcre2_jit_test.c
+@@ -412,6 +412,9 @@ static struct regression_test_case regression_test_cases[] = {
+        { MUP, A, 0, 0 | F_PROPERTY, "[\\P{L&}]{2}[^\xc2\x85-\xc2\x89\\p{Ll}\\p{Lu}]{2}", "\xc3\xa9\xe6\x92\xad.a\xe6\x92\xad|\xc2\x8a#" },
+        { PCRE2_UCP, 0, 0, 0 | F_PROPERTY, "[a-b\\s]{2,5}[^a]", "AB  baaa" },
+        { MUP, 0, 0, 0 | F_NOMATCH, "[^\\p{Hangul}\\p{Z}]", " " },
++       { MUP, 0, 0, 0, "[\\p{Lu}\\P{Latin}]+", "c\xEA\xA4\xAE,A,b" },
++       { MUP, 0, 0, 0, "[\\x{a92e}\\p{Lu}\\P{Latin}]+", "c\xEA\xA4\xAE,A,b" },
++       { CMUP, 0, 0, 0, "[^S]\\B", "\xe2\x80\x8a" },
+ 
+        /* Possible empty brackets. */
+        { MU, A, 0, 0, "(?:|ab||bc|a)+d", "abcxabcabd" },
+-- 
+2.35.3
+
diff --git a/meta/recipes-support/libpcre/libpcre2_10.39.bb b/meta/recipes-support/libpcre/libpcre2_10.39.bb
index b5ec62fe18..36c51d700a 100644
--- a/meta/recipes-support/libpcre/libpcre2_10.39.bb
+++ b/meta/recipes-support/libpcre/libpcre2_10.39.bb
@@ -10,8 +10,9 @@ SECTION = "devel"
 LICENSE = "BSD-3-Clause"
 LIC_FILES_CHKSUM = "file://LICENCE;md5=43cfa999260dd853cd6cb174dc396f3d"
 
-SRC_URI = "https://github.com/PhilipHazel/pcre2/releases/download/pcre2-${PV}/pcre2-${PV}.tar.bz2"
-
+SRC_URI = "https://github.com/PhilipHazel/pcre2/releases/download/pcre2-${PV}/pcre2-${PV}.tar.bz2 \
+           file://CVE-2022-1586.patch \
+"
 UPSTREAM_CHECK_URI = "https://github.com/PhilipHazel/pcre2/releases"
 
 SRC_URI[sha256sum] = "0f03caf57f81d9ff362ac28cd389c055ec2bf0678d277349a1a4bee00ad6d440"