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Stop strip from crashing when deleteing relocs in a file with annobin notes. 

Resolves: #1520805
This commit is contained in:
Nick Clifton 2017-12-08 08:40:01 +00:00
parent 7fe57ead2d
commit b9846b82c5
2 changed files with 82 additions and 1 deletions
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73
binutils-strip-delete-relocs.patch Normal file
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@ -0,0 +1,73 @@
diff -rup binutils.orig/bfd/elf64-sparc.c binutils-2.29.1/bfd/elf64-sparc.c
--- binutils.orig/bfd/elf64-sparc.c 2017-12-07 17:23:06.764174312 +0000
+++ binutils-2.29.1/bfd/elf64-sparc.c 2017-12-07 17:23:20.540009839 +0000
@@ -287,6 +287,7 @@ elf64_sparc_set_reloc (bfd *abfd ATTRIBU
unsigned int count)
{
asect->orelocation = location;
+ asect->reloc_count = count / 2;
canon_reloc_count (asect) = count;
}
Only in binutils-2.29.1/bfd: elf64-sparc.c.orig
diff -rup binutils.orig/bfd/elfcode.h binutils-2.29.1/bfd/elfcode.h
--- binutils.orig/bfd/elfcode.h 2017-12-07 17:23:06.722174814 +0000
+++ binutils-2.29.1/bfd/elfcode.h 2017-12-07 17:23:20.541009827 +0000
@@ -958,6 +958,12 @@ elf_write_relocs (bfd *abfd, asection *s
return;
}
+ if (ptr->howto == NULL)
+ {
+ *failedp = TRUE;
+ return;
+ }
+
src_rela.r_offset = ptr->address + addr_offset;
src_rela.r_info = ELF_R_INFO (n, ptr->howto->type);
src_rela.r_addend = ptr->addend;
diff -rup binutils.orig/binutils/objcopy.c binutils-2.29.1/binutils/objcopy.c
--- binutils.orig/binutils/objcopy.c 2017-12-07 17:23:06.769174253 +0000
+++ binutils-2.29.1/binutils/objcopy.c 2017-12-07 17:23:20.542009815 +0000
@@ -3785,14 +3785,24 @@ copy_relocations_in_section (bfd *ibfd,
}
else
{
- relpp = (arelent **) xmalloc (relsize);
- relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
- if (relcount < 0)
+ if (isection->orelocation != NULL)
{
- status = 1;
- bfd_nonfatal_message (NULL, ibfd, isection,
- _("relocation count is negative"));
- return;
+ /* Some other function has already set up the output relocs
+ for us, so scan those instead of the default relocs. */
+ relcount = isection->reloc_count;
+ relpp = isection->orelocation;
+ }
+ else
+ {
+ relpp = (arelent **) xmalloc (relsize);
+ relcount = bfd_canonicalize_reloc (ibfd, isection, relpp, isympp);
+ if (relcount < 0)
+ {
+ status = 1;
+ bfd_nonfatal_message (NULL, ibfd, isection,
+ _("relocation count is negative"));
+ return;
+ }
}
if (strip_symbols == STRIP_ALL)
@@ -3815,7 +3825,8 @@ copy_relocations_in_section (bfd *ibfd,
temp_relpp [temp_relcount++] = relpp [i];
}
relcount = temp_relcount;
- free (relpp);
+ if (isection->orelocation == NULL)
+ free (relpp);
relpp = temp_relpp;
}

10
binutils.spec
View File

@ -54,7 +54,7 @@
Summary: A GNU collection of binary utilities
Name: %{?cross}binutils%{?_with_debug:-debug}
Version: 2.29.1
Release: 6%{?dist}
Release: 7%{?dist}
License: GPLv3+
Group: Development/Tools
URL: http://sources.redhat.com/binutils
@ -137,6 +137,11 @@ Patch09: binutils-2.29.1-readelf-use-dynamic.patch
# FIXME: Replace with a configure time option.
Patch10: binutils-2.29-revert-PLT-elision.patch
# Purpose: Fixes a bug in strip/objcopy which could cause it to crash when
# deleting relocs in a file which also contains mergeable notes.
# Lifetime: Fixed in 2.30.
Patch11: binutils-strip-delete-relocs.patch
#----------------------------------------------------------------------------
Provides: bundled(libiberty)
@ -668,6 +673,9 @@ exit 0
#----------------------------------------------------------------------------
%changelog
* Thu Dec 07 2017 Nick Clifton <nickc@redhat.com> 2.29.1-7
- Stop strip from crashing when deleteing relocs in a file with annobin notes. (#1520805)
* Wed Dec 06 2017 Nick Clifton <nickc@redhat.com> 2.29.1-6
- Have readelf return an exit failure status when attempting to process an empty file. (#1522732)