Miklos Szeredi b403f0e37a 9p: use file_dentry() ... v9fs may be used as lower layer of overlayfs and accessing f_path.dentry can lead to a crash. In this case it's a NULL pointer dereference in p9_fid_create(). Fix by replacing direct access of file->f_path.dentry with the file_dentry() accessor, which will always return a native object. Reported-by: Alessio Igor Bogani <alessioigorbogani@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Tested-by: Alessio Igor Bogani <alessioigorbogani@gmail.com> Fixes: 4bacc9c923 ("overlayfs: Make f_path always point to the overlay and f_inode to the underlay") Cc: <stable@vger.kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2016-06-30 23:28:09 -04:00
..
Kconfig	fs/9p: xattr: add trusted and security namespaces	2013-07-07 22:02:18 -05:00
Makefile	9p: xattr simplifications	2015-11-13 20:34:33 -05:00
acl.c	switch xattr_handler->set() to passing dentry and inode separately	2016-05-27 15:39:43 -04:00
acl.h	9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate()	2013-02-26 02:46:07 -05:00
cache.c	fs/9p: use fscache mutex rather than spinlock	2016-01-09 02:57:21 -05:00
cache.h	fs: 9p: cache.h: Add #define of include guard	2015-11-11 02:19:50 -05:00
fid.c	9p: switch to %p[dD]	2014-10-09 02:39:04 -04:00
fid.h	9p: v9fs_fid_add() can't fail now	2013-02-28 01:18:14 -05:00
v9fs.c	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
v9fs.h	fs/9p: use fscache mutex rather than spinlock	2016-01-09 02:57:21 -05:00
v9fs_vfs.h	9p: switch p9_client_read() to passing struct iov_iter *	2015-04-11 22:28:27 -04:00
vfs_addr.c	direct-io: eliminate the offset argument to ->direct_IO	2016-05-01 19:58:39 -04:00
vfs_dentry.c	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
vfs_dir.c	9p: switch to ->iterate_shared()	2016-05-09 11:41:16 -04:00
vfs_file.c	9p: use file_dentry()	2016-06-30 23:28:09 -04:00
vfs_inode.c	don't bother with ->d_inode->i_sb - it's always equal to ->d_sb	2016-04-10 17:11:51 -04:00
vfs_inode_dotl.c	switch ->get_link() to delayed_call, kill ->put_link()	2015-12-30 13:01:03 -05:00
vfs_super.c	mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macros	2016-04-04 10:41:08 -07:00
xattr.c	switch xattr_handler->set() to passing dentry and inode separately	2016-05-27 15:39:43 -04:00
xattr.h	9p: xattr simplifications	2015-11-13 20:34:33 -05:00