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| author | Jan Kara <jack@suse.cz> | 2013-02-20 13:16:39 +1100 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2013-02-26 02:46:12 -0500 |
| commit | 9b171e0c74ca0549d0610990a862dd895870f04a (patch) | |
| tree | 1ec30424bb79be880f56a57798b7f3ac39c01fc1 | |
| parent | 30b9c9e6ba289ba3bb67cc292efcc4122ea37ae5 (diff) | |
| download | linux-9b171e0c74ca0549d0610990a862dd895870f04a.tar.gz linux-9b171e0c74ca0549d0610990a862dd895870f04a.tar.bz2 linux-9b171e0c74ca0549d0610990a862dd895870f04a.zip | |
ocfs2: fix possible use-after-free with AIO
Running AIO is pinning inode in memory using file reference. Once AIO
is completed using aio_complete(), file reference is put and inode can
be freed from memory. So we have to be sure that calling aio_complete()
is the last thing we do with the inode.
Signed-off-by: Jan Kara <jack@suse.cz>
Acked-by: Jeff Moyer <jmoyer@redhat.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/ocfs2/aops.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index db1ad26e02a7..50fe28b988c1 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -593,9 +593,9 @@ static void ocfs2_dio_end_io(struct kiocb *iocb, level = ocfs2_iocb_rw_locked_level(iocb); ocfs2_rw_unlock(inode, level); + inode_dio_done(inode); if (is_async) aio_complete(iocb, ret, 0); - inode_dio_done(inode); } /* |