linux-stable/fs/ceph
Xiubo Li d1d9655052 ceph: do not access the kiocb after aio requests
In aio case, if the completion comes very fast just before the
ceph_read_iter() returns to fs/aio.c, the kiocb will be freed in
the completion callback, then if ceph_read_iter() access again
we will potentially hit the use-after-free bug.

[ jlayton: initialize direct_lock early, and use it everywhere ]

URL: https://tracker.ceph.com/issues/45649
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-08-03 11:05:25 +02:00
..
acl.c ceph: add caps perf metric for each superblock 2020-06-01 13:22:51 +02:00
addr.c ceph: add read/write latency metric support 2020-06-01 13:22:51 +02:00
cache.c ceph: replace zero-length array with flexible-array member 2020-03-30 12:42:40 +02:00
cache.h libceph, rbd, ceph: convert to use the new mount API 2019-11-27 22:28:37 +01:00
caps.c ceph: clean up and optimize ceph_check_delayed_caps() 2020-08-03 11:05:21 +02:00
ceph_frag.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
debugfs.c ceph: add global total_caps to count the mdsc's total caps number 2020-08-03 11:05:15 +02:00
dir.c ceph: allow rename operation under different quota realms 2020-06-01 13:22:53 +02:00
export.c ceph: don't return -ESTALE if there's still an open file 2020-06-01 13:22:53 +02:00
file.c ceph: do not access the kiocb after aio requests 2020-08-03 11:05:25 +02:00
inode.c ceph: add caps perf metric for each superblock 2020-06-01 13:22:51 +02:00
io.c ceph: add buffered/direct exclusionary locking for reads and writes 2019-09-16 12:06:25 +02:00
io.h ceph: add buffered/direct exclusionary locking for reads and writes 2019-09-16 12:06:25 +02:00
ioctl.c ceph: consider inode's last read/write when calculating wanted caps 2020-03-30 12:42:42 +02:00
ioctl.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig ceph: add selinux support 2019-07-08 14:01:42 +02:00
locks.c ceph: check if file lock exists before sending unlock request 2020-03-30 12:42:40 +02:00
Makefile ceph: add dentry lease metric support 2020-06-01 13:22:51 +02:00
mds_client.c ceph: fix potential mdsc use-after-free crash 2020-08-03 11:05:21 +02:00
mds_client.h ceph: add check_session_state() helper and make it global 2020-08-03 11:05:10 +02:00
mdsmap.c ceph: add possible_max_rank and make the code more readable 2020-01-27 16:53:40 +01:00
metric.c ceph: add global total_caps to count the mdsc's total caps number 2020-08-03 11:05:15 +02:00
metric.h ceph: add global total_caps to count the mdsc's total caps number 2020-08-03 11:05:15 +02:00
quota.c ceph: allow rename operation under different quota realms 2020-06-01 13:22:53 +02:00
snap.c ceph: fix memory leak in ceph_cleanup_snapid_map() 2020-03-23 13:07:08 +01:00
strings.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
super.c ceph: perform asynchronous unlink if we have sufficient caps 2020-03-30 12:42:42 +02:00
super.h ceph: skip checking caps when session reconnecting and releasing reqs 2020-06-01 13:22:53 +02:00
util.c ceph: move net/ceph/ceph_fs.c to fs/ceph/util.c 2020-01-27 16:53:40 +01:00
xattr.c ceph: add caps perf metric for each superblock 2020-06-01 13:22:51 +02:00