Stephen Smalley efd5ce8b23 selinux: fall back to ref-walk if audit is required ... [ Upstream commit 0188d5c025 ] commit bda0be7ad9 ("security: make inode_follow_link RCU-walk aware") passed down the rcu flag to the SELinux AVC, but failed to adjust the test in slow_avc_audit() to also return -ECHILD on LSM_AUDIT_DATA_DENTRY. Previously, we only returned -ECHILD if generating an audit record with LSM_AUDIT_DATA_INODE since this was only relevant from inode_permission. Move the handling of MAY_NOT_BLOCK to avc_audit() and its inlined equivalent in selinux_inode_permission() immediately after we determine that audit is required, and always fall back to ref-walk in this case. Fixes: bda0be7ad9 ("security: make inode_follow_link RCU-walk aware") Reported-by: Will Deacon <will@kernel.org> Suggested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-02-24 08:34:40 +01:00
..
apparmor	apparmor: don't try to replace stale label in ptrace access check	2020-01-27 14:49:55 +01:00
integrity	ima: fix freeing ongoing ahash_request	2019-10-11 18:21:11 +02:00
keys	keys: Timestamp new keys	2020-01-27 14:50:23 +01:00
loadpin	module: replace the existing LSM hook in init_module	2018-07-16 12:31:57 -07:00
selinux	selinux: fall back to ref-walk if audit is required	2020-02-24 08:34:40 +01:00
smack	LSM: generalize flag passing to security_capable	2020-01-23 08:21:29 +01:00
tomoyo	tomoyo: Use atomic_t for statistics counter	2020-02-05 14:43:38 +00:00
yama	Yama: Check for pid death before checking ancestry	2019-01-22 21:40:32 +01:00
commoncap.c	LSM: generalize flag passing to security_capable	2020-01-23 08:21:29 +01:00
device_cgroup.c	device_cgroup: fix RCU imbalance in error case	2019-04-27 09:36:40 +02:00
inode.c	securityfs: fix use-after-free on symlink traversal	2019-05-25 18:23:42 +02:00
Kconfig	Revert "x86/mm/legacy: Populate the user page-table with user pgd's"	2018-09-14 17:08:45 +02:00
lsm_audit.c	missing barriers in some of unix_sock ->addr and ->path accesses	2019-03-19 13:12:41 +01:00
Makefile
min_addr.c
security.c	LSM: generalize flag passing to security_capable	2020-01-23 08:21:29 +01:00