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bfd_elf_set_group_contents assertion

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objcopy of broken SHT_GROUP sections shouldn't write garbage.

	* elf.c (bfd_elf_set_group_contents): If number of entries is
	unexpected, fill out section with zeros.
This commit is contained in:
Alan Modra 2022-08-17 17:14:16 +09:30
parent 31e43bfffb
commit 7744e3278b
1 changed files with 6 additions and 1 deletions
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7
bfd/elf.c
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@ -3614,7 +3614,12 @@ bfd_elf_set_group_contents (bfd *abfd, asection *sec, void *failedptrarg)
}
loc -= 4;
BFD_ASSERT (loc == sec->contents);
if (loc != sec->contents)
{
BFD_ASSERT (0);
memset (sec->contents + 4, 0, loc - sec->contents);
loc = sec->contents;
}
H_PUT_32 (abfd, sec->flags & SEC_LINK_ONCE ? GRP_COMDAT : 0, loc);
}