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Fix: Stripping Rust static libraries fails because of overly zealous illegal path check

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PR 31250
  * objcopy.c (copy_archive): Improve the handling of archives that contain elements with invalid pathnames.
This commit is contained in:
Nick Clifton 2024-01-26 11:54:08 +00:00
parent 9c8d5b9a4f
commit c8567a87a6
2 changed files with 20 additions and 12 deletions
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6
binutils/ChangeLog
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@ -1,3 +1,9 @@
2024-01-26 Nick Clifton <nickc@redhat.com>
PR 31250
* objcopy.c (copy_archive): Improve the handling of archives that
contain elements with invalid pathnames.
2024-01-15 Nick Clifton <nickc@redhat.com>
* 2.42 branch point.

26
binutils/objcopy.c
View File

@ -3672,21 +3672,25 @@ copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
struct stat buf;
int stat_status = 0;
bool ok_object;
const char *element_name;
element_name = bfd_get_filename (this_element);
/* PR binutils/17533: Do not allow directory traversal
outside of the current directory tree by archive members. */
if (! is_valid_archive_path (bfd_get_filename (this_element)))
if (! is_valid_archive_path (element_name))
{
non_fatal (_("illegal pathname found in archive member: %s"),
bfd_get_filename (this_element));
bfd_close (this_element);
status = 1;
goto cleanup_and_exit;
non_fatal (_("warning: illegal pathname found in archive member: %s"),
element_name);
/* PR binutils/31250: But there tools which create archives
containing absolute paths, so instead of failing here, try to
create a suitable alternative pathname. */
element_name = lbasename (element_name);
non_fatal (_("warning: using the basename of the member instead: %s"),
element_name);
}
/* Create an output file for this member. */
output_name = concat (dir, "/",
bfd_get_filename (this_element), (char *) 0);
output_name = concat (dir, "/", element_name, (char *) 0);
/* If the file already exists, make another temp dir. */
if (stat (output_name, &buf) >= 0)
@ -3708,8 +3712,7 @@ copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
l->next = list;
l->obfd = NULL;
list = l;
output_name = concat (tmpdir, "/",
bfd_get_filename (this_element), (char *) 0);
output_name = concat (tmpdir, "/", element_name, (char *) 0);
}
if (preserve_dates)
@ -3718,8 +3721,7 @@ copy_archive (bfd *ibfd, bfd *obfd, const char *output_target,
stat_status = bfd_stat_arch_elt (this_element, &buf);
if (stat_status != 0)
non_fatal (_("internal stat error on %s"),
bfd_get_filename (this_element));
non_fatal (_("internal stat error on %s"), element_name);
}
struct name_list *l = xmalloc (sizeof (*l));