File 1265-erl_bits.-ch-Correct-type-for-sizes.patch of Package erlang

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File 1265-erl_bits.-ch-Correct-type-for-sizes.patch of Package erlang (Revision c5e180b483b62ec3dcbec1868ff03c21)

Currently displaying revision c5e180b483b62ec3dcbec1868ff03c21 , Show latest

From 0594990c5c38b427de27b2d0536a6d73a8c38be8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Gustavsson?= <bjorn@erlang.org>
Date: Tue, 23 May 2023 14:29:16 +0200
Subject: [PATCH] erl_bits.[ch]: Correct type for sizes

Code such as the following would crash the runtime system because
the size would not fit in an `int`:

start() ->
        <<0:1, (1 bsl 64):(1 bsl 32)/unit:8>>.
---
 erts/emulator/beam/erl_bits.c | 2 +-
 erts/emulator/beam/erl_bits.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/erts/emulator/beam/erl_bits.c b/erts/emulator/beam/erl_bits.c
index 9fa010bed0..4e43c141d2 100644
--- a/erts/emulator/beam/erl_bits.c
+++ b/erts/emulator/beam/erl_bits.c
@@ -781,7 +781,7 @@ fmt_int(byte *buf, Uint sz, Eterm val, Uint size, Uint flags)
 }
 
 static void
-ERTS_INLINE need_byte_buf(ERL_BITS_PROTO_1(int need))
+ERTS_INLINE need_byte_buf(ERL_BITS_PROTO_1(Uint need))
 {
     if (byte_buf_len < need) {
 	erts_atomic_add_nob(&bits_bufs_size, need - byte_buf_len);
diff --git a/erts/emulator/beam/erl_bits.h b/erts/emulator/beam/erl_bits.h
index 25aff39047..6165b09b85 100644
--- a/erts/emulator/beam/erl_bits.h
+++ b/erts/emulator/beam/erl_bits.h
@@ -54,7 +54,7 @@ struct erl_bits_state {
      * Used for building binaries.
      */
     byte *byte_buf_;
-    int byte_buf_len_;
+    Uint byte_buf_len_;
     /*
      * Used for building binaries using the new instruction set.
      */
-- 
2.35.3

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File 1265-erl_bits.-ch-Correct-type-for-sizes.patch of Package erlang (Revision c5e180b483b62ec3dcbec1868ff03c21)

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