NeilBrown bda0be7ad9 security: make inode_follow_link RCU-walk aware ... inode_follow_link now takes an inode and rcu flag as well as the dentry. inode is used in preference to d_backing_inode(dentry), particularly in RCU-walk mode. selinux_inode_follow_link() gets dentry_has_perm() and inode_has_perm() open-coded into it so that it can call avc_has_perm_flags() in way that is safe if LOOKUP_RCU is set. Calling avc_has_perm_flags() with rcu_read_lock() held means that when avc_has_perm_noaudit calls avc_compute_av(), the attempt to rcu_read_unlock() before calling security_compute_av() will not actually drop the RCU read-lock. However as security_compute_av() is completely in a read_lock()ed region, it should be safe with the RCU read-lock held. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>		2015-05-11 08:13:11 -04:00
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apparmor
integrity
keys
selinux
smack
tomoyo
yama
capability.c
commoncap.c
device_cgroup.c
inode.c
Kconfig
lsm_audit.c
Makefile
min_addr.c
security.c