Al Viro 2d2d3f1ee7 do d_instantiate/unlock_new_inode combinations safely ... commit 1e2e547a93 upstream. For anything NFS-exported we do _not_ want to unlock new inode before it has grown an alias; original set of fixes got the ordering right, but missed the nasty complication in case of lockdep being enabled - unlock_new_inode() does lockdep_annotate_inode_mutex_key(inode) which can only be done before anyone gets a chance to touch ->i_mutex. Unfortunately, flipping the order and doing unlock_new_inode() before d_instantiate() opens a window when mkdir can race with open-by-fhandle on a guessed fhandle, leading to multiple aliases for a directory inode and all the breakage that follows from that. Correct solution: a new primitive (d_instantiate_new()) combining these two in the right order - lockdep annotate, then d_instantiate(), then the rest of unlock_new_inode(). All combinations of d_instantiate() with unlock_new_inode() should be converted to that. Cc: stable@kernel.org # 2.6.29 and later Tested-by: Mike Marshall <hubcap@omnibond.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-05-30 07:50:16 +02:00
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crypto.c	ecryptfs: fix spelling mistakes	2016-06-20 10:02:35 -05:00
debug.c
dentry.c	eCryptfs: Invalidate dcache entries when lower i_nlink is zero	2015-08-18 17:29:48 -05:00
ecryptfs_kernel.h	ecryptfs: fix dereference of NULL user_key_payload	2017-11-02 09:49:15 +01:00
file.c	ecryptfs: don't allow mmap when the lower fs doesn't support it	2016-07-08 10:35:28 -05:00
inode.c	do d_instantiate/unlock_new_inode combinations safely	2018-05-30 07:50:16 +02:00
Kconfig	Minor code cleanups and new Kconfig option to disable /dev/ecryptfs	2013-03-07 12:47:24 -08:00
keystore.c	ecryptfs: fix dereference of NULL user_key_payload	2017-11-02 09:49:15 +01:00
kthread.c	Revert "ecryptfs: forbid opening files without mmap handler"	2016-07-07 18:47:57 -05:00
main.c	ecryptfs: Switch to generic xattr handlers	2016-10-06 22:17:38 -04:00
Makefile	eCryptfs: allow userspace messaging to be disabled	2013-03-03 23:59:59 -08:00
messaging.c	eCryptfs: use after free in ecryptfs_release_messaging()	2017-11-30 08:39:03 +00:00
miscdev.c	ecryptfs: close rmmod race	2013-04-09 14:08:16 -04:00
mmap.c	xattr: Add __vfs_{get,set,remove}xattr helpers	2016-10-07 20:10:44 -04:00
read_write.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
super.c	eCryptfs: Do not allocate hash tfm in NORECLAIM context	2016-04-20 17:50:01 +08:00