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linux/fs/ocfs2
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dann frazier 226291aa46 ocfs2_connection_find() returns pointer to bad structure 
If ocfs2_live_connection_list is empty, ocfs2_connection_find() will return
a pointer to the LIST_HEAD, cast as a ocfs2_live_connection. This can cause
an oops when ocfs2_control_send_down() dereferences c->oc_conn:

Call Trace:
  [<ffffffffa00c2a3c>] ocfs2_control_message+0x28c/0x2b0 [ocfs2_stack_user]
  [<ffffffffa00c2a95>] ocfs2_control_write+0x35/0xb0 [ocfs2_stack_user]
  [<ffffffff81143a88>] vfs_write+0xb8/0x1a0
  [<ffffffff8155cc13>] ? do_page_fault+0x153/0x3b0
  [<ffffffff811442f1>] sys_write+0x51/0x80
  [<ffffffff810121b2>] system_call_fastpath+0x16/0x1b

Fix by explicitly returning NULL if no match is found.

Signed-off-by: dann frazier <dann.frazier@canonical.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-11-18 15:41:41 -08:00
..
cluster ocfs2: fix memory leak 2010-11-18 14:10:56 -08:00
dlm fs/ocfs2/dlm: Use GFP_ATOMIC under spin_lock 2010-11-18 14:10:55 -08:00
dlmfs convert get_sb_nodev() users 2010-10-29 04:16:31 -04:00
acl.c ocfs2: update ctime when changing the file's permission by setfacl 2010-09-23 14:16:21 -07:00
acl.h ocfs2: Always include ACL support 2009-10-28 23:05:57 -07:00
alloc.c ocfs2: Fix deadlock when allocating page 2010-09-08 14:25:57 +08:00
alloc.h Merge branch 'discontig-bg' of git://oss.oracle.com/git/tma/linux-2.6 into ocfs2-merge-window 2010-05-18 16:40:42 -07:00
aops.c fs: kill block_prepare_write 2010-10-25 21:18:20 -04:00
aops.h fs: kill block_prepare_write 2010-10-25 21:18:20 -04:00
blockcheck.c ocfs2: Fix metaecc error messages 2010-09-08 14:25:53 +08:00
blockcheck.h
buffer_head_io.c Merge branch 'skip_delete_inode' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2-mark into ocfs2-fixes 2010-04-30 13:37:29 -07:00
buffer_head_io.h ocfs2: Take the inode out of the metadata read/write paths. 2009-09-04 16:07:48 -07:00
dcache.c Ocfs2: Stop tracking a negative dentry after dentry_iput(). 2010-11-18 14:10:56 -08:00
dcache.h Track negative entries v3 2010-09-10 09:18:15 -07:00
dir.c Ocfs2: Re-access the journal after ocfs2_insert_extent() in dxdir codes. 2010-09-10 09:19:11 -07:00
dir.h
dlmglue.c Track negative entries v3 2010-09-10 09:18:15 -07:00
dlmglue.h ocfs2: Fix lockdep warning in reflink. 2010-09-10 09:19:06 -07:00
export.c ocfs2/trivial: Remove trailing whitespaces 2010-01-25 19:20:51 -08:00
export.h
extent_map.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
extent_map.h ocfs2: Return extent flags for xattr value tree. 2009-09-22 20:09:39 -07:00
file.c fs: kill block_prepare_write 2010-10-25 21:18:20 -04:00
file.h ocfs2: Zero the tail cluster when extending past i_size. 2010-07-08 13:25:35 -07:00
heartbeat.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
heartbeat.h
inode.c Track negative entries v3 2010-09-10 09:18:15 -07:00
inode.h Track negative entries v3 2010-09-10 09:18:15 -07:00
ioctl.c Ocfs2: Add new OCFS2_IOC_INFO ioctl for ocfs2 v8. 2010-09-10 08:35:41 -07:00
ioctl.h Ocfs2: Move ocfs2 ioctl definitions from ocfs2_fs.h to newly added ocfs2_ioctl.h 2010-03-02 14:10:20 -08:00
journal.c ocfs2: Remove obsolete comments before ocfs2_start_trans. 2010-09-10 08:40:18 -07:00
journal.h Reorganize data elements to reduce struct sizes 2010-09-10 08:39:27 -07:00
Kconfig ocfs2: Always include ACL support 2009-10-28 23:05:57 -07:00
localalloc.c ocfs2: Limit default local alloc size within bitmap range. 2010-06-15 16:50:43 -07:00
localalloc.h ocfs2: increase the default size of local alloc windows 2010-05-05 18:18:07 -07:00
locks.c [PATCH] Skip check for mandatory locks when unlocking 2010-03-17 12:07:16 -07:00
locks.h
Makefile ocfs2: allocation reservations 2010-05-05 18:17:30 -07:00
mmap.c Merge branch 'cow_readahead' of git://oss.oracle.com/git/tma/linux-2.6 into merge-2 2010-09-10 08:41:04 -07:00
mmap.h
namei.c new helper: ihold() 2010-10-25 21:26:11 -04:00
namei.h ocfs2: Create reflinked file in orphan dir. 2009-09-22 20:09:48 -07:00
ocfs1_fs_compat.h
ocfs2_fs.h Merge branch 'globalheartbeat-2' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-merge-window 2010-10-15 13:03:09 -07:00
ocfs2_ioctl.h Merge branch 'globalheartbeat-2' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-merge-window 2010-10-15 13:03:09 -07:00
ocfs2_lockid.h ocfs2: Add new refcount tree lock resource in dlmglue. 2009-09-22 20:09:28 -07:00
ocfs2_lockingver.h ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
ocfs2.h ocfs2: char is not always signed 2010-11-18 14:10:56 -08:00
quota_global.c ocfs2: Zero the tail cluster when extending past i_size. 2010-07-08 13:25:35 -07:00
quota_local.c ocfs2: Zero the tail cluster when extending past i_size. 2010-07-08 13:25:35 -07:00
quota.h ocfs2: Fix NULL pointer deref when writing local dquot 2010-05-21 19:30:48 +02:00
refcounttree.c Merge branch 'globalheartbeat-2' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-merge-window 2010-10-15 13:03:09 -07:00
refcounttree.h Merge branch 'cow_readahead' of git://oss.oracle.com/git/tma/linux-2.6 into merge-2 2010-09-10 08:41:04 -07:00
reservations.c ocfs2: Move 'wanted' into parens of ocfs2_resmap_resv_bits. 2010-09-23 14:16:47 -07:00
reservations.h ocfs2: make ocfs2_adjust_resv_from_alloc simple. 2010-05-05 18:18:09 -07:00
resize.c ocfs2: Make ocfs2_journal_dirty() void. 2010-05-05 18:17:29 -07:00
resize.h
slot_map.c When I tried to compile I got the following warning: 2010-10-11 13:45:52 -07:00
slot_map.h
stack_o2cb.c ocfs2: Print message if user mounts without starting global heartbeat 2010-10-06 17:55:29 -07:00
stack_user.c ocfs2_connection_find() returns pointer to bad structure 2010-11-18 15:41:41 -08:00
stackglue.c ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
stackglue.h ocfs2_dlmfs: Enable the use of user cluster stacks. 2010-02-26 15:41:18 -08:00
suballoc.c Merge branch 'globalheartbeat-2' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-merge-window 2010-10-15 13:03:09 -07:00
suballoc.h ocfs2: allow return of new inode block location before allocation of the inode 2010-09-08 14:25:59 +08:00
super.c BKL: remove extraneous #include <smp_lock.h> 2010-11-17 08:59:32 -08:00
super.h ocfs2: Wrap signal blocking in void functions. 2010-05-10 11:50:10 -07:00
symlink.c ocfs2: Don't walk off the end of fast symlinks. 2010-09-29 17:33:05 -07:00
symlink.h
sysfile.c ocfs2: Cache system inodes of other slots. 2010-09-10 08:56:24 -07:00
sysfile.h
uptodate.c ocfs2/trivial: Remove trailing whitespaces 2010-01-25 19:20:51 -08:00
uptodate.h ocfs2: Pass struct ocfs2_caching_info to the journal functions. 2009-09-04 16:07:50 -07:00
ver.c
ver.h
xattr.c ocfs2: Avoid to evaluate xattr block flags again. 2010-10-15 13:03:43 -07:00
xattr.h ocfs: constify xattr_handler 2010-05-21 18:31:20 -04:00