Fix seg-fault attempting to strip a corrupt binary.
PR binutils/20922 * elf.c (find_link): Check for null headers before attempting to match them.
This commit is contained in:
parent
88add6d8e7
commit
a55c9876bb
@ -1,5 +1,9 @@
|
||||
2016-12-05 Nick Clifton <nickc@redhat.com>
|
||||
|
||||
PR binutils/20922
|
||||
* elf.c (find_link): Check for null headers before attempting to
|
||||
match them.
|
||||
|
||||
PR ld/20925
|
||||
* aoutx.h (aout_link_add_symbols): Replace BFD_ASSERT with return
|
||||
FALSE.
|
||||
|
@ -1271,13 +1271,19 @@ find_link (const bfd * obfd, const Elf_Internal_Shdr * iheader, const unsigned i
|
||||
Elf_Internal_Shdr ** oheaders = elf_elfsections (obfd);
|
||||
unsigned int i;
|
||||
|
||||
if (section_match (oheaders[hint], iheader))
|
||||
BFD_ASSERT (iheader != NULL);
|
||||
|
||||
/* See PR 20922 for a reproducer of the NULL test. */
|
||||
if (oheaders[hint] != NULL
|
||||
&& section_match (oheaders[hint], iheader))
|
||||
return hint;
|
||||
|
||||
for (i = 1; i < elf_numsections (obfd); i++)
|
||||
{
|
||||
Elf_Internal_Shdr * oheader = oheaders[i];
|
||||
|
||||
if (oheader == NULL)
|
||||
continue;
|
||||
if (section_match (oheader, iheader))
|
||||
/* FIXME: Do we care if there is a potential for
|
||||
multiple matches ? */
|
||||
|
Loading…
Reference in New Issue
Block a user