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| author | Eric Sandeen <sandeen@redhat.com> | 2011-09-16 15:49:21 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2011-09-16 18:43:04 -0400 |
| commit | 665563b825ca697a2b4bdd340760a36f6263709e (patch) | |
| tree | 7904115dea147a86397e32f29a635847b6d9fd93 /lib | |
| parent | d0f196d867504d8461fb7c6958aa6a5d220d5825 (diff) | |
| download | e2fsprogs-665563b825ca697a2b4bdd340760a36f6263709e.tar.gz | |
libext2fs: Potential null ptr deref in undo_err_handler_init
In the !undo_io_backing_manager case, undo_err_handler_init
will be passed a null data->real, which will be dereferenced.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/ext2fs/undo_io.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/ext2fs/undo_io.c b/lib/ext2fs/undo_io.c index 454f3b62..da1cf452 100644 --- a/lib/ext2fs/undo_io.c +++ b/lib/ext2fs/undo_io.c @@ -400,7 +400,8 @@ static errcode_t undo_open(const char *name, int flags, io_channel *channel) * setup err handler for read so that we know * when the backing manager fails do short read */ - undo_err_handler_init(data->real); + if (data->real) + undo_err_handler_init(data->real); *channel = io; return 0; |