Al Viro 7a8b048430 fix cgroup_do_mount() handling of failure exits ... commit 399504e21a upstream. same story as with last May fixes in sysfs (7b745a4e40 "unfuck sysfs_mount()"); new_sb is left uninitialized in case of early errors in kernfs_mount_ns() and papering over it by treating any error from kernfs_mount_ns() as equivalent to !new_ns ends up conflating the cases when objects had never been transferred to a superblock with ones when that has happened and resulting new superblock had been dropped. Easily fixed (same way as in sysfs case). Additionally, there's a superblock leak on kernfs_node_dentry() failure *and* a dentry leak inside kernfs_node_dentry() itself - the latter on probably impossible errors, but the former not impossible to trigger (as the matter of fact, injecting allocation failures at that point *does* trigger it). Cc: stable@kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-03-23 20:09:53 +01:00
..
dir.c	kernfs: allow creating kernfs objects with arbitrary uid/gid	2018-07-20 23:44:35 -07:00
file.c	kernfs: allow creating kernfs objects with arbitrary uid/gid	2018-07-20 23:44:35 -07:00
inode.c	kernfs: allow creating kernfs objects with arbitrary uid/gid	2018-07-20 23:44:35 -07:00
Kconfig	kernfs: add CONFIG_KERNFS	2014-02-07 16:08:57 -08:00
kernfs-internal.h	kernfs: allow creating kernfs objects with arbitrary uid/gid	2018-07-20 23:44:35 -07:00
Makefile
mount.c	fix cgroup_do_mount() handling of failure exits	2019-03-23 20:09:53 +01:00
symlink.c	Driver core patches for 4.19-rc1	2018-08-18 11:44:53 -07:00