android_kernel_samsung_a7y1.../fs/overlayfs
Mark Salyzyn d0e944a7ac ovl: filter of trusted xattr results in audit
commit 5c2e9f346b815841f9bed6029ebcb06415caf640 upstream.

When filtering xattr list for reading, presence of trusted xattr
results in a security audit log.  However, if there is other content
no errno will be set, and if there isn't, the errno will be -ENODATA
and not -EPERM as is usually associated with a lack of capability.
The check does not block the request to list the xattrs present.

Switch to ns_capable_noaudit to reflect a more appropriate check.

Signed-off-by: Mark Salyzyn <salyzyn@android.com>
Cc: linux-security-module@vger.kernel.org
Cc: kernel-team@android.com
Cc: stable@vger.kernel.org # v3.18+
Fixes: a082c6f680da ("ovl: filter trusted xattr for non-admin")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-07 07:41:14 +02:00
..
copy_up.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
dir.c ovl: fix uid/gid when creating over whiteout 2020-04-06 15:28:07 +02:00
inode.c ovl: filter of trusted xattr results in audit 2020-04-07 07:41:14 +02:00
Kconfig A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
overlayfs.h A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
readdir.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
super.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30