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Madhuparna Bhowmik 1610cd913f evm: Fix RCU list related warnings 
[ Upstream commit 770f60586d ]

This patch fixes the following warning and few other instances of
traversal of evm_config_xattrnames list:

[   32.848432] =============================
[   32.848707] WARNING: suspicious RCU usage
[   32.848966] 5.7.0-rc1-00006-ga8d5875ce5f0b #1 Not tainted
[   32.849308] -----------------------------
[   32.849567] security/integrity/evm/evm_main.c:231 RCU-list traversed in non-reader section!!

Since entries are only added to the list and never deleted, use
list_for_each_entry_lockless() instead of list_for_each_entry_rcu for
traversing the list.  Also, add a relevant comment in evm_secfs.c to
indicate this fact.

Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Madhuparna Bhowmik <madhuparnabhowmik10@gmail.com>
Acked-by: Paul E. McKenney <paulmck@kernel.org> (RCU viewpoint)
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2020-06-07 13:18:50 +02:00
..
apparmor apparmor: Fix aa_label refcnt leak in policy_update 2020-05-27 17:46:42 +02:00
integrity evm: Fix RCU list related warnings 2020-06-07 13:18:50 +02:00
keys KEYS: Avoid false positive ENOMEM error on key read 2020-04-29 16:33:11 +02:00
loadpin
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lockdown powerpc/xmon: Restrict when kernel is locked down 2020-06-07 13:18:49 +02:00
safesetid LSM: SafeSetID: Stop releasing uninitialized ruleset 2019-09-17 11:27:05 -07:00
selinux selinux: properly handle multiple messages in selinux_netlink_send() 2020-05-06 08:15:17 +02:00
smack broken ping to ipv6 linklocal addresses on debian buster 2020-02-11 04:35:43 -08:00
tomoyo tomoyo: Use atomic_t for statistics counter 2020-02-05 21:22:41 +00:00
yama
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Kconfig Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00
Kconfig.hardening
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Makefile security: Add a static lockdown policy LSM 2019-08-19 21:54:15 -07:00
commoncap.c exec: Always set cap_ambient in cap_bprm_set_creds 2020-06-03 08:21:23 +02:00
device_cgroup.c
…
inode.c
…
lsm_audit.c
…
min_addr.c
…
security.c Merge branch 'next-lockdown' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2019-09-28 08:14:15 -07:00