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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: 8c52a530ba2beb438aa47956bcec3777a1eafe5f) Signed-off-by: Yuanjie Huang <yuanjie.huang@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>