linux

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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()