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Fix an assertion failure when parsing a fuzzed x86_64 ELF binary. 

PR 22172
	* elf64-x86-64.c (elf_x86_64_info_to_howto): Do not trigger an
	assertion failure if elf_x86_64_rtype_to_howto has already issued
	an error message.
This commit is contained in:
Nick Clifton 2017-09-26 16:03:10 +01:00
parent 00956d3a8a
commit 262c0a877f
2 changed files with 9 additions and 1 deletions
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7
bfd/ChangeLog
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@ -1,3 +1,10 @@
2017-09-26 Nick Clifton <nickc@redhat.com>
PR 22172
* elf64-x86-64.c (elf_x86_64_info_to_howto): Do not trigger an
assertion failure if elf_x86_64_rtype_to_howto has already issued
an error message.
2017-09-26 Alan Modra <amodra@gmail.com>
PR 22210

3
bfd/elf64-x86-64.c
View File

@ -344,7 +344,8 @@ elf_x86_64_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
&& r_type != (unsigned int) R_X86_64_GNU_VTENTRY)
r_type &= ~R_X86_64_converted_reloc_bit;
cache_ptr->howto = elf_x86_64_rtype_to_howto (abfd, r_type);
BFD_ASSERT (r_type == cache_ptr->howto->type);
BFD_ASSERT (r_type == cache_ptr->howto->type || cache_ptr->howto->type == R_X86_64_NONE);
}
/* Support for core dump NOTE sections. */