Sage Weil 7246240c7c libceph: avoid NULL kref_put from NULL alloc_msg return ...

The ceph_on_in_msg_alloc() method calls the ->alloc_msg() helper which
may return NULL.  It also drops con->mutex while it allocates a message,
which means that the connection state may change (e.g., get closed).  If
that happens, we clean up and bail out.  Avoid calling ceph_msg_put() on
a NULL return value and triggering a crash.

This was observed when an ->alloc_msg() call races with a timeout that
resends a zillion messages and resets the connection, and ->alloc_msg()
returns NULL (because the request was resent to another target).

Fixes http://tracker.newdream.net/issues/3342

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>

2012-10-26 16:35:04 -05:00

..

crush

libceph: support crush tunables

2012-07-30 18:15:23 -07:00

armor.c

libceph: Fix base64-decoding when input ends in newline.

2011-03-15 09:14:02 -07:00

auth_none.c

ceph: messenger: reduce args to create_authorizer

2012-05-17 08:18:12 -05:00

auth_none.h

ceph: factor out libceph from Ceph file system

2010-10-20 15:37:28 -07:00

auth_x_protocol.h

ceph: factor out libceph from Ceph file system

2010-10-20 15:37:28 -07:00

auth_x.c

ceph: messenger: reduce args to create_authorizer

2012-05-17 08:18:12 -05:00

auth_x.h

net: cleanup unsigned to unsigned int

2012-04-15 12:44:40 -04:00

auth.c

ceph: Move secret key parsing earlier.

2011-03-29 12:11:16 -07:00

buffer.c

net: allow GFP_HIGHMEM in __vmalloc()

2010-11-21 10:04:04 -08:00

ceph_common.c

libceph: delay debugfs initialization until we learn global_id

2012-08-20 10:03:15 -07:00

ceph_fs.c

ceph: fix file mode calculation

2011-07-19 11:25:04 -07:00

ceph_hash.c

net: cleanup unsigned to unsigned int

2012-04-15 12:44:40 -04:00

ceph_strings.c

ceph: factor out libceph from Ceph file system

2010-10-20 15:37:28 -07:00

crypto.c

libceph: fix crypto key null deref, memory leak

2012-08-02 09:19:20 -07:00

crypto.h

libceph: fix crypto key null deref, memory leak

2012-08-02 09:19:20 -07:00

debugfs.c

libceph: delay debugfs initialization until we learn global_id

2012-08-20 10:03:15 -07:00

Kconfig

ceph: use kernel DNS resolver

2011-10-25 16:10:16 -07:00

Makefile

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2010-12-08 13:47:38 -08:00

messenger.c

libceph: avoid NULL kref_put from NULL alloc_msg return

2012-10-26 16:35:04 -05:00

mon_client.c

libceph: Fix sparse warning

2012-10-01 14:30:49 -05:00

msgpool.c

libceph: initialize msgpool message types

2012-07-30 09:29:50 -07:00

osd_client.c

ceph: propagate layout error on osd request creation

2012-10-01 17:20:00 -05:00

osdmap.c

libceph: check for invalid mapping

2012-10-01 17:20:00 -05:00

pagelist.c

ceph: use list_move_tail instead of list_del/list_add_tail

2012-10-01 14:30:49 -05:00

pagevec.c

libceph: fix handling of short returns from get_user_pages

2011-03-03 13:47:39 -08:00