diff options
| author | Jan Kara <jack@suse.cz> | 2013-01-23 13:56:18 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-02-03 18:27:01 -0600 |
| commit | 2698f16a24e6ec48de944f00aef812f19247af60 (patch) | |
| tree | e970e00519b9d2edbc7540bb01d2f754ae92063e /fs | |
| parent | 943924faea21e0d9e5fd2bd34e6c32c62bef4a1a (diff) | |
xfs: Fix possible use-after-free with AIO
commit 4b05d09c18d9aa62d2e7fb4b057f54e5a38963f5 upstream.
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>
CC: xfs@oss.sgi.com
CC: Ben Myers <bpm@sgi.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/xfs_aops.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index e0e9ee0b9683..dfbcfd0b7d6c 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -86,11 +86,11 @@ xfs_destroy_ioend( } if (ioend->io_iocb) { + inode_dio_done(ioend->io_inode); if (ioend->io_isasync) { aio_complete(ioend->io_iocb, ioend->io_error ? ioend->io_error : ioend->io_result, 0); } - inode_dio_done(ioend->io_inode); } mempool_free(ioend, xfs_ioend_pool); |