Backport upstream commit to address vulnerabilities:
CVE: CVE-2017-6965
[BZ 21137] -- https://sourceware.org/bugzilla/show_bug.cgi?id=21137
Fix readelf writing to illegal addresses whilst processing corrupt input
files containing symbol-difference relocations.
PR binutils/21137
* readelf.c (target_specific_reloc_handling): Add end parameter.
Check for buffer overflow before writing relocated values.
(apply_relocations): Pass end to target_specific_reloc_handling.
CVE: CVE-2017-6966
[BZ 21139] -- https://sourceware.org/bugzilla/show_bug.cgi?id=21139
Fix read-after-free error in readelf when processing multiple, relocated
sections in an MSP430 binary.
PR binutils/21139
* readelf.c (target_specific_reloc_handling): Add num_syms
parameter. Check for symbol table overflow before accessing
symbol value. If reloc pointer is NULL, discard all saved state.
(apply_relocations): Pass num_syms to target_specific_reloc_handling.
Call target_specific_reloc_handling with a NULL reloc pointer
after processing all of the relocs.
(From OE-Core rev: 477afc5634698d6c5cdb6d7705a31d859495695d)
Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Fixes segfaults when doing partial linking and generaring binary objects
/tmp/binu/ld/ld-new -r -b binary -o etc_certs_ui_ca_pem.o etc_certs_ui_ca_pem
0 elf32_arm_count_additional_relocs (sec=0x79bf40) at /mnt/a/work/oe/binutils-gdb/bfd/elf32-arm.c:18210
1 0x000000000047635a in bfd_elf_final_link (abfd=abfd@entry=0x783250, info=info@entry=0x748400 <link_info>) at /mnt/a/work/oe/binutils-gdb/bfd/elflink.c:11224
2 0x000000000044df7b in elf32_arm_final_link (abfd=0x783250, info=0x748400 <link_info>) at /mnt/a/work/oe/binutils-gdb/bfd/elf32-arm.c:12131
3 0x0000000000418917 in ldwrite () at /mnt/a/work/oe/binutils-gdb/ld/ldwrite.c:577
4 0x000000000040365f in main (argc=<optimized out>, argv=<optimized out>) at /mnt/a/work/oe/binutils-gdb/ld/ldmain.c:433
gold works ok. The patch is already applied in master binutils
(From OE-Core rev: 00d1913520f1572fa7def865e57852c7f25b0ec4)
(From OE-Core rev: 2b1a571899eec018d6f44876b743e06835ed761d)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
We don't autoreconf/libtoolize binutils as it has very strict requirements, so
extend our patching of the stock libtool to include two fixes to RPATH
behaviour, as part of the solution to ensure that native binaries don't have
RPATHs pointing at the host system's /usr/lib.
This generally doesn't cause a problem but it can cause some binaries (such as
ar) to abort on startup:
./x86_64-pokysdk-linux-ar: relocation error: /usr/lib/libc.so.6: symbol
_dl_starting_up, version GLIBC_PRIVATE not defined in file ld-linux.so.2 with
link time reference
The situation here is that ar is built and as it links to the host libc/loader
has an RPATH for /usr/lib. If tmp is wiped and then binutils is installed from
sstate relocation occurs and the loader changed to the sysroot, but there
remains a RPATH for /usr/lib. This means that the sysroot loader is used with
the host libc, which can be incompatible. By telling libtool that the host
library paths are in the default search path, and ensuring that all default
search paths are not added as RPATHs by libtool, the result is a binary that
links to what it should be linking to and nothing else.
[ YOCTO #9287 ]
(From OE-Core rev: 6b201081b622cc083cc2b1a8ad99d6f7d2bea480)
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
