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| author | Alan Modra <amodra@gmail.com> | 2017-10-06 14:14:21 +1030 |
|---|---|---|
| committer | Alan Modra <amodra@gmail.com> | 2017-10-06 16:13:08 +1030 |
| commit | e98fdf1ab07243fe467caadd0d033b44b8ca20c7 (patch) | |
| tree | a40ab6ad74dbc14a505320c59e66182e5612d513 /binutils/ChangeLog | |
| parent | 0caf6c82ab23ece570d14499ed02653968cd8abd (diff) | |
| download | fsf-binutils-gdb-e98fdf1ab07243fe467caadd0d033b44b8ca20c7.zip fsf-binutils-gdb-e98fdf1ab07243fe467caadd0d033b44b8ca20c7.tar.gz fsf-binutils-gdb-e98fdf1ab07243fe467caadd0d033b44b8ca20c7.tar.bz2 | |
DWARF header checks
This patch tidies DWARF header checks, consolidating the "negative"
checks (which are really overflow checks) with the section size
check. In a number of cases this also ensures that small negative
lengths are caught. For instance
hdrptr = start + arange.ar_length + initial_length_size;
if (hdrptr < start || hdrptr > end)
does not detect ar_length in the range [-initial_length_size,-1].
* dwarf.c (process_debug_info): Consolidate header length checks.
(display_debug_pubnames_worker): Use "start" to read header.
Properly check header length and report errors earlier.
Simplify loop printing pubnames.
(get_line_filename_and_dirname): Catch small negative "length"
values.
(display_debug_aranges): Likewise. Report header errors
earlier using standardized message.
(display_debug_names): Likewise.
Diffstat (limited to 'binutils/ChangeLog')
| -rw-r--r-- | binutils/ChangeLog | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/binutils/ChangeLog b/binutils/ChangeLog index 4fb4eb4..ca4990e 100644 --- a/binutils/ChangeLog +++ b/binutils/ChangeLog @@ -1,3 +1,15 @@ +2017-10-06 Alan Modra <amodra@gmail.com> + + * dwarf.c (process_debug_info): Consolidate header length checks. + (display_debug_pubnames_worker): Use "start" to read header. + Properly check header length and report errors earlier. + Simplify loop printing pubnames. + (get_line_filename_and_dirname): Catch small negative "length" + values. + (display_debug_aranges): Likewise. Report header errors + earlier using standardized message. + (display_debug_names): Likewise. + 2017-10-05 Joseph Myers <joseph@codesourcery.com> * readelf.c (decode_arm_unwind): Initialize res to TRUE. |