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| author |   Nick Clifton <nickc@redhat.com> | 2022-06-27 13:30:35 +0100 |
|---|---|---|
| committer | Nick Clifton <nickc@redhat.com> | 2022-06-27 13:30:35 +0100 |
| commit | e98e7d9a70dcc987bff0e925f20b78cd4a2979ed (patch) | |
| tree | ba3164a6606fadcfd15176c21ab64d2dc14a3964 /binutils/dwarf.c | |
| parent | Have gold's File_read::do_read() function check the start parameter (diff) | |
| download | binutils-gdb-e98e7d9a70dcc987bff0e925f20b78cd4a2979ed.tar.gz binutils-gdb-e98e7d9a70dcc987bff0e925f20b78cd4a2979ed.tar.bz2 binutils-gdb-e98e7d9a70dcc987bff0e925f20b78cd4a2979ed.zip | |
Fix NULL pointer indirection when parsing corrupt DWARF data.
PR 29290
* dwarf.c (read_and_display_attr_value): Check that debug_info_p
is set before dereferencing it.
Diffstat (limited to 'binutils/dwarf.c')
| -rw-r--r-- | binutils/dwarf.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/binutils/dwarf.c b/binutils/dwarf.c index bcabb61b871..37b477b886d 100644 --- a/binutils/dwarf.c +++ b/binutils/dwarf.c @@ -2694,18 +2694,17 @@ read_and_display_attr_value (unsigned long attribute, { const char *suffix = section ? strrchr (section->name, '.') : NULL; bool dwo = suffix && strcmp (suffix, ".dwo") == 0; + const char *strng; + strng = fetch_indexed_string (uvalue, this_set, offset_size, dwo, + debug_info_p ? debug_info_p->str_offsets_base : 0); if (do_wide) /* We have already displayed the form name. */ printf (_("%c(offset: 0x%s): %s"), delimiter, - dwarf_vmatoa ("x", uvalue), - fetch_indexed_string (uvalue, this_set, offset_size, dwo, - debug_info_p->str_offsets_base)); + dwarf_vmatoa ("x", uvalue), strng); else printf (_("%c(indexed string: 0x%s): %s"), delimiter, - dwarf_vmatoa ("x", uvalue), - fetch_indexed_string (uvalue, this_set, offset_size, dwo, - debug_info_p->str_offsets_base)); + dwarf_vmatoa ("x", uvalue), strng); } break; |