!29 Fix fuzz failure

From: @zou_lin77
Reviewed-by: @overweight
Signed-off-by: @overweight
This commit is contained in:
openeuler-ci-bot 2020-09-19 17:01:40 +08:00 committed by Gitee
commit c9db1d4bf2
2 changed files with 39 additions and 1 deletions

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@ -0,0 +1,31 @@
From 151f5de4a6548cd83a79b4705f1e901776ddacc5 Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Thu, 28 May 2020 11:04:27 +0100
Subject: [PATCH] Fix a potential use of an uninitialised value in the ns32k
disassembler.
* ns32k-dis.c (print_insn_ns32k): Change the arg_bufs array to
static.
---
opcodes/ns32k-dis.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/opcodes/ns32k-dis.c b/opcodes/ns32k-dis.c
index 12df182..ccad820 100644
--- a/opcodes/ns32k-dis.c
+++ b/opcodes/ns32k-dis.c
@@ -738,7 +738,10 @@ print_insn_ns32k (bfd_vma memaddr, disassemble_info *info)
unsigned short first_word;
int ioffset; /* Bits into instruction. */
int aoffset; /* Bits into arguments. */
- char arg_bufs[MAX_ARGS+1][ARG_LEN];
+ /* The arg_bufs array is made static in order to avoid a potential
+ use of an uninitialised value if we are asekd to disassemble a
+ corrupt instruction. */
+ static char arg_bufs[MAX_ARGS+1][ARG_LEN];
int argnum;
int maxarg;
struct private priv;
--
1.8.3.1

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@ -1,7 +1,7 @@
Summary: Binary utilities Summary: Binary utilities
Name: binutils Name: binutils
Version: 2.34 Version: 2.34
Release: 3 Release: 4
License: GPLv3+ License: GPLv3+
URL: https://sourceware.org/binutils URL: https://sourceware.org/binutils
@ -34,6 +34,8 @@ Patch17: Re-asan-more-readelf-leaks.patch
Patch18: readelf-leak-in-process_archive.patch Patch18: readelf-leak-in-process_archive.patch
Patch19: metag-uninitialized-memory-read.patch Patch19: metag-uninitialized-memory-read.patch
Patch20: Fix-a-potential-use-of-an-uninitialised-value-in-the.patch
Provides: bundled(libiberty) Provides: bundled(libiberty)
Buildroot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX) Buildroot: %(mktemp -ud %{_tmppath}/%{name}-%{version}-%{release}-XXXXXX)
@ -320,6 +322,11 @@ fi
%{_infodir}/bfd*info* %{_infodir}/bfd*info*
%changelog %changelog
* Fri Sep 18 2020 zoulin <zoulin13@huawei.com> - 2.34-4
- Type:bugfix
- ID:NA
- SUG:Fix a potential use-of-an-uninitialised-value in the print_insn_ns32k of fuzz_disassemble
* Fri Sep 11 2020 zoulin <zoulin13@huawei.com> - 2.34-3 * Fri Sep 11 2020 zoulin <zoulin13@huawei.com> - 2.34-3
- Type:bugfix - Type:bugfix
- ID:NA - ID:NA