Alexey Gladkov 9d78edeaec proc: proc_pid_ns takes super_block as an argument ... syzbot found that touch /proc/testfile causes NULL pointer dereference at tomoyo_get_local_path() because inode of the dentry is NULL. Before c59f415a7c, Tomoyo received pid_ns from proc's s_fs_info directly. Since proc_pid_ns() can only work with inode, using it in the tomoyo_get_local_path() was wrong. To avoid creating more functions for getting proc_ns, change the argument type of the proc_pid_ns() function. Then, Tomoyo can use the existing super_block to get pid_ns. Link: https://lkml.kernel.org/r/0000000000002f0c7505a5b0e04c@google.com Link: https://lkml.kernel.org/r/20200518180738.2939611-1-gladkov.alexey@gmail.com Reported-by: syzbot+c1af344512918c61362c@syzkaller.appspotmail.com Fixes: c59f415a7c ("Use proc_pid_ns() to get pid_namespace from the proc superblock") Signed-off-by: Alexey Gladkov <gladkov.alexey@gmail.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>		2020-05-19 07:07:50 -05:00
..
apparmor	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
bpf	bpf: lsm: Initialize the BPF LSM hooks	2020-03-30 01:34:00 +02:00
integrity	Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity	2020-04-02 14:49:46 -07:00
keys	Keyrings fixes	2020-04-04 12:24:47 -07:00
loadpin	proc/sysctl: add shared variables for range check	2019-07-18 17:08:07 -07:00
lockdown	security,lockdown,selinux: implement SELinux lockdown	2019-12-09 17:53:58 -05:00
safesetid	security/safesetid: Replace rcu_swap_protected() with rcu_replace_pointer()	2019-10-30 08:45:57 -07:00
selinux	SPDX patches for 5.7-rc1.	2020-04-03 13:12:26 -07:00
smack	Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2020-02-08 13:26:41 -08:00
tomoyo	proc: proc_pid_ns takes super_block as an argument	2020-05-19 07:07:50 -05:00
yama	proc/sysctl: add shared variables for range check	2019-07-18 17:08:07 -07:00
commoncap.c	Merge branch 'next-lsm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2019-07-09 12:24:21 -07:00
device_cgroup.c	device_cgroup: Export devcgroup_check_permission	2019-10-07 15:11:38 -05:00
inode.c	Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2019-07-19 10:42:02 -07:00
Kconfig	bpf: lsm: Initialize the BPF LSM hooks	2020-03-30 01:34:00 +02:00
Kconfig.hardening	meminit fix	2019-07-28 12:33:15 -07:00
lsm_audit.c	security,lockdown,selinux: implement SELinux lockdown	2019-12-09 17:53:58 -05:00
Makefile	bpf: lsm: Initialize the BPF LSM hooks	2020-03-30 01:34:00 +02:00
min_addr.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
security.c	security: Refactor declaration of LSM hooks	2020-03-30 01:34:00 +02:00