File 1250-Eliminate-crash-in-matching-of-utf32-segme... of Package erlang

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File 1250-Eliminate-crash-in-matching-of-utf32-segment.patch of Package erlang

From 5a1fbccf0128042aa1ae04b6ce7da08da992daf9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Mon, 24 Apr 2023 07:57:09 +0200
Subject: [PATCH] Eliminate crash in matching of utf32 segment

---
 erts/emulator/beam/emu/ops.tab      | 4 ++++
 erts/emulator/beam/jit/x86/ops.tab  | 4 ++++
 erts/emulator/test/bs_utf_SUITE.erl | 4 ++++
 3 files changed, 12 insertions(+)

diff --git a/erts/emulator/beam/ops.tab b/erts/emulator/beam/ops.tab
index 28cee5cd36..d1469f05d6 100644
--- a/erts/emulator/beam/ops.tab
+++ b/erts/emulator/beam/ops.tab
@@ -1208,6 +1208,10 @@ bs_skip_utf16 Fail=f Ms=xy Unit=u Flags=u => bs_get_utf16 Fail Ms Unit Flags x
 
 i_bs_get_utf16 xy f? t d
 
+bs_get_utf32 Fail=f Ms=xy Live=u Flags=u Ms=d => \
+	bs_get_integer2 Fail Ms Live i=32 u=1 Flags x | \
+	i_bs_validate_unicode_retract Fail x Ms | \
+        move x Ms
 bs_get_utf32 Fail=f Ms=xy Live=u Flags=u Dst=d => \
 	bs_get_integer2 Fail Ms Live i=32 u=1 Flags Dst | \
 	i_bs_validate_unicode_retract Fail Dst Ms
diff --git a/erts/emulator/test/bs_utf_SUITE.erl b/erts/emulator/test/bs_utf_SUITE.erl
index a344f5c456..8885b31324 100644
--- a/erts/emulator/test/bs_utf_SUITE.erl
+++ b/erts/emulator/test/bs_utf_SUITE.erl
@@ -272,6 +272,10 @@ utf32_illegal_sequences(Config) when is_list(Config) ->
     utf32_fail_range(16#10FFFF+1, 16#10FFFF+512), %Too large.
     utf32_fail_range(16#D800, 16#DFFF),		%Reserved for UTF-16.
     utf32_fail_range(-100, -1),
+
+    <<>> = id(<< 0 || <<X/utf32>> <= <<"àxxx">>, _ = X >>),
+    <<>> = id(<< 0 || <<X/little-utf32>> <= <<"àxxx">>, _ = X >>),
+
     ok.
 
 utf32_fail_range(Char, End) when Char =< End ->
-- 
2.35.3

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File 1250-Eliminate-crash-in-matching-of-utf32-segment.patch of Package erlang

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