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[Bug gdb/15827] Segfault on reading symbols from a fuzzed (corrupted) binary
- From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: gdb-prs at sourceware dot org
- Date: Wed, 16 Apr 2014 21:43:19 +0000
- Subject: [Bug gdb/15827] Segfault on reading symbols from a fuzzed (corrupted) binary
- Auto-submitted: auto-generated
- References: <bug-15827-4717 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=15827
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- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=22869d73e127511e177a6bd855f9b5dbe22b9eca
commit 22869d73e127511e177a6bd855f9b5dbe22b9eca
Author: Keith Seitz <keiths@redhat.com>
Date: Wed Apr 16 14:39:10 2014 -0700
PR gdb/15827
Install some sanity checks that sibling DIE offsets are not beyond the
defined limits of the DWARF input buffer in read_partial_die and
skip_one_die.
2014-03-20 Keith Seitz <keiths@redhat.com>
PR gdb/15827
* dwarf2read.c (skip_one_die): Check that all relative-offset
sibling DIEs fall within range of the current reader's buffer.
(read_partial_die): Likewise.
2014-03-20 Keith Seitz <keiths@redhat.com>
PR gdb/15827
* gdb.dwarf2/corrupt.c: New file.
* gdb.dwarf2/corrupt.exp: New file.
-----------------------------------------------------------------------
Summary of changes:
gdb/ChangeLog | 7 +++
gdb/dwarf2read.c | 4 ++
gdb/testsuite/ChangeLog | 6 +++
gdb/testsuite/gdb.dwarf2/corrupt.c | 24 ++++++++++
gdb/testsuite/gdb.dwarf2/corrupt.exp | 77 ++++++++++++++++++++++++++++++++++
5 files changed, 118 insertions(+), 0 deletions(-)
create mode 100644 gdb/testsuite/gdb.dwarf2/corrupt.c
create mode 100644 gdb/testsuite/gdb.dwarf2/corrupt.exp
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