diff options
| author | Jan Kara <jack@suse.cz> | 2013-01-23 13:56:18 +0100 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2013-01-26 09:43:58 -0600 |
| commit | ced55f38d6bde7c10a14ea51c2edcd51a98575e3 (patch) | |
| tree | 74840a0c20cb2397046631a79fa0be72abe3ca77 /fs/xfs | |
| parent | 3b19034d4f4554e39ca244fb28962bbf2ccba046 (diff) | |
| download | linux-ced55f38d6bde7c10a14ea51c2edcd51a98575e3.tar.gz | |
xfs: 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.
CC: xfs@oss.sgi.com
CC: Ben Myers <bpm@sgi.com>
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs')
| -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 4111a40ebe1a..5f707e537171 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); |