Wang Weiyang fbfd6dee52 device_cgroup: Roll back to original exceptions after copy failure ... commit e68bfbd3b3c3a0ec3cf8c230996ad8cabe90322f upstream. When add the 'a *:* rwm' entry to devcgroup A's whitelist, at first A's exceptions will be cleaned and A's behavior is changed to DEVCG_DEFAULT_ALLOW. Then parent's exceptions will be copyed to A's whitelist. If copy failure occurs, just return leaving A to grant permissions to all devices. And A may grant more permissions than parent. Backup A's whitelist and recover original exceptions after copy failure. Cc: stable@vger.kernel.org Fixes: 4cef7299b4 ("device_cgroup: add proper checking when changing default behavior") Signed-off-by: Wang Weiyang <wangweiyang2@huawei.com> Reviewed-by: Aristeu Rozanski <aris@redhat.com> Signed-off-by: Paul Moore <paul@paul-moore.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2023-01-18 11:41:50 +01:00
..
apparmor	apparmor: Use pointer to struct aa_label for lbs_cred	2023-01-18 11:41:17 +01:00
integrity	ima: Fix a potential NULL pointer access in ima_restore_measurement_list	2023-01-18 11:41:49 +01:00
keys
loadpin
lockdown
safesetid
selinux
smack
tomoyo
yama
commoncap.c	capabilities: fix potential memleak on error path from vfs_getxattr_alloc()	2022-11-10 17:57:55 +01:00
device_cgroup.c	device_cgroup: Roll back to original exceptions after copy failure	2023-01-18 11:41:50 +01:00
inode.c
Kconfig
Kconfig.hardening
lsm_audit.c
Makefile
min_addr.c
security.c