diff options
| author | Jan Kara <jack@suse.cz> | 2013-01-23 16:56:18 +0400 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2013-01-28 22:51:22 +0400 |
| commit | 4b05d09c18d9aa62d2e7fb4b057f54e5a38963f5 (patch) | |
| tree | 7fd54bd1852d5cd98d2db3ed5e94ba71f6f36760 | |
| parent | 9f87832a82923943aaab38b8d53658af134bbfa4 (diff) | |
| download | linux-4b05d09c18d9aa62d2e7fb4b057f54e5a38963f5.tar.xz | |
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>
| -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); |