linux/security
Oleg Nesterov c0c1439541 selinux: selinux_setprocattr()->ptrace_parent() needs rcu_read_lock()
selinux_setprocattr() does ptrace_parent(p) under task_lock(p),
but task_struct->alloc_lock doesn't pin ->parent or ->ptrace,
this looks confusing and triggers the "suspicious RCU usage"
warning because ptrace_parent() does rcu_dereference_check().

And in theory this is wrong, spin_lock()->preempt_disable()
doesn't necessarily imply rcu_read_lock() we need to access
the ->parent.

Reported-by: Evan McNabb <emcnabb@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
2013-12-23 17:45:17 -05:00
..
apparmor Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2013-11-21 19:46:00 -08:00
integrity ima: properly free ima_template_entry structures 2013-12-02 20:46:56 -05:00
keys security: shmem: implement kernel private shmem inodes 2013-12-02 11:24:19 +00:00
selinux selinux: selinux_setprocattr()->ptrace_parent() needs rcu_read_lock() 2013-12-23 17:45:17 -05:00
smack
tomoyo
yama
capability.c Linux 3.12 2013-11-26 17:32:55 -05:00
commoncap.c
device_cgroup.c
inode.c
Kconfig
lsm_audit.c Merge git://git.infradead.org/users/eparis/audit 2013-11-21 19:18:14 -08:00
Makefile
min_addr.c
security.c Linux 3.12 2013-11-26 17:32:55 -05:00