linux

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Files

Oleg Nesterov fbf8f2e409 selinux: selinux_setprocattr()->ptrace_parent() needs rcu_read_lock()

commit c0c1439541 upstream.

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>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>

2014-01-13 10:01:05 -08:00

apparmor

apparmor: fix IRQ stack overflow during free_profile

2012-10-25 02:12:50 +11:00

integrity

Revert "ima: policy for RAMFS"

2013-12-06 14:27:45 -08:00

keys

Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys

2013-03-14 11:26:36 -07:00

selinux

selinux: selinux_setprocattr()->ptrace_parent() needs rcu_read_lock()