Prevents the use of null pointers and sets the pointer to null after being used

backport-PR28186-SEGV-elf.c-7991-30-in-_bfd_elf_fixup_group_sections.patch

@@ -0,0 +1,32 @@
+From d86cf1b0d5ac6c0d900ae2b2a07fce7c4414d0e6 Mon Sep 17 00:00:00 2001
+From: Alan Modra <amodra@gmail.com>
+Date: Sat, 7 Aug 2021 14:10:38 +0930
+Subject: [PATCH] PR28186, SEGV elf.c:7991:30 in _bfd_elf_fixup_group_sections
+
+	PR 28186
+	* elf.c (_bfd_elf_fixup_group_sections): Don't segfault on
+	objcopy/strip with NULL output_section.
+
+(cherry picked from commit 182ad37589e3931390d0c43f1d52a9a6e0062a61)
+Reference:https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=d86cf1b0d5ac6c0d900ae2b2a07fce7c4414d0e6
+Conflict:NA
+---
+ bfd/elf.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/bfd/elf.c b/bfd/elf.c
+index de5abafabf0..9c3f34c415b 100644
+--- a/bfd/elf.c
++++ b/bfd/elf.c
+@@ -7984,7 +7984,7 @@ _bfd_elf_fixup_group_sections (bfd *ibfd, asection *discarded)
+ 		    isec->flags |= SEC_EXCLUDE;
+ 		  }
+ 	      }
+-	    else
++	    else if (isec->output_section != NULL)
+ 	      {
+ 		/* Adjust the output section size when called from
+ 		   objcopy. */
+-- 
+2.23.0
+

backport-PR28422-build_id-use-after-free.patch

@@ -0,0 +1,33 @@
+From c20c7adbeaa3af18a58ba1e20e6c33e7186356e3 Mon Sep 17 00:00:00 2001
+From: Alan Modra <amodra@gmail.com>
+Date: Wed, 6 Oct 2021 18:28:47 +1030
+Subject: [PATCH] PR28422, build_id use-after-free
+
+This fixes a bug in commit 5d9bbb73c1df.  All fields preserved from a
+bfd in struct bfd_preserve need to be cleared in bfd_reinit.
+
+	PR 28422
+	* format.c (bfd_reinit): Clear build_id.
+
+(cherry picked from commit 6d661cdc5be46e890ed9255e749806f46a88e26c)
+Reference:https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=c20c7adbeaa3af18a58ba1e20e6c33e7186356e3
+Conflict:NA
+---
+ bfd/format.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/bfd/format.c b/bfd/format.c
+index 5d08d1d642c..408c984690e 100644
+--- a/bfd/format.c
++++ b/bfd/format.c
+@@ -151,6 +151,7 @@ bfd_reinit (bfd *abfd, unsigned int section_id, bfd_cleanup cleanup)
+   abfd->tdata.any = NULL;
+   abfd->arch_info = &bfd_default_arch_struct;
+   abfd->flags &= BFD_FLAGS_SAVED;
++  abfd->build_id = NULL;
+   bfd_section_list_clear (abfd);
+ }
+ 
+-- 
+2.23.0
+

backport-PR28540-segmentation-fault-on-NULL-byte_get.patch

@@ -0,0 +1,32 @@
+From 96eb21265ebffbc28f767bed9a2b7650ecb9818d Mon Sep 17 00:00:00 2001
+From: Alan Modra <amodra@gmail.com>
+Date: Thu, 4 Nov 2021 14:11:02 +1030
+Subject: [PATCH] PR28540, segmentation fault on NULL byte_get
+
+	PR 28540
+	* objdump.c (dump_bfd): Don't attempt load_separate_debug_files
+	when byte_get is NULL.
+
+(cherry picked from commit f2f105f518413ea3e4c212f89585f9a8a5dddcdd)
+Reference:https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=96eb21265ebffbc28f767bed9a2b7650ecb9818d
+Conflict:NA
+---
+ binutils/objdump.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/binutils/objdump.c b/binutils/objdump.c
+index a7b8303b992..50317b3d48f 100644
+--- a/binutils/objdump.c
++++ b/binutils/objdump.c
+@@ -4869,7 +4869,7 @@ dump_bfd (bfd *abfd, bool is_mainfile)
+      
+      The test on is_mainfile is there because the chain of separate debug
+      info files is a global variable shared by all invocations of dump_bfd.  */
+-  if (is_mainfile)
++  if (byte_get != NULL && is_mainfile)
+     {
+       load_separate_debug_files (abfd, bfd_get_filename (abfd));
+ 
+-- 
+2.23.0
+

binutils.spec

@@ -1,7 +1,7 @@
 Summary: Binary utilities
 Name:    binutils
 Version: 2.37
-Release: 13
+Release: 14
 License: GPLv3+
 URL:     https://sourceware.org/binutils
 
@@ -69,6 +69,10 @@ Patch43: backport-0001-texi2pod.pl-add-no-op-no-split-option-support-PR2814.patc
 Patch44: backport-AArch64-Add-support-for-AArch64-EFI-efi-aarch64.patch
 Patch45: backport-Add-support-for-AArch64-EFI-efi-aarch64.patch
 Patch46: backport-don-t-over-align-file-positions-of-PE-executable-sec.patch
+Patch47: backport-PR28186-SEGV-elf.c-7991-30-in-_bfd_elf_fixup_group_sections.patch
+Patch48: backport-PR28422-build_id-use-after-free.patch
+Patch49: backport-PR28540-segmentation-fault-on-NULL-byte_get.patch
+
 
 Provides: bundled(libiberty)
 
@@ -392,6 +396,9 @@ fi
 %{_infodir}/bfd*info*
 
 %changelog
+* Mon Oct 24 2022 huyubiao <huyubiao@huawei.com> - 2.37-14
+- DESC:Prevents the use of null pointers and sets the pointer to null after being used.
+
 * Tue Oct 18 2022 konglidong <konglidong@uniontech.com> - 2.37-13
 - DESC:fix the changelog exception macro