John Johansen e0d2bf5a01 apparmor: fix aa_xattrs_match() may sleep while holding a RCU lock ... commit 8c62ed27a1 upstream. aa_xattrs_match() is unfortunately calling vfs_getxattr_alloc() from a context protected by an rcu_read_lock. This can not be done as vfs_getxattr_alloc() may sleep regardles of the gfp_t value being passed to it. Fix this by breaking the rcu_read_lock on the policy search when the xattr match feature is requested and restarting the search if a policy changes occur. Fixes: 8e51f9087f ("apparmor: Add support for attaching profiles via xattr, presence and value") Reported-by: Jia-Ju Bai <baijiaju1990@gmail.com> Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: John Johansen <john.johansen@canonical.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-01-09 10:20:00 +01:00
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apparmor	apparmor: fix aa_xattrs_match() may sleep while holding a RCU lock	2020-01-09 10:20:00 +01:00
integrity	integrity: remove pointless subdir-$(CONFIG_...)	2019-10-05 15:29:49 +09:00
keys	KEYS: trusted: correctly initialize digests and fix locking issue	2019-09-25 02:43:53 +03:00
loadpin	…
lockdown	efi/efi_test: Lock down /dev/efi_test and require CAP_SYS_ADMIN	2019-10-31 09:40:21 +01:00
safesetid	LSM: SafeSetID: Stop releasing uninitialized ruleset	2019-09-17 11:27:05 -07:00
selinux	selinux/stable-5.4 PR 20191007	2019-10-08 10:51:37 -07:00
smack	I have four patches for v5.4. Nothing is major. All but one are in	2019-09-23 14:25:45 -07:00
tomoyo	tomoyo: Don't use nifty names on sockets.	2020-01-04 19:18:42 +01:00
yama	…
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	…
Makefile	…
commoncap.c	…
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