linux

iv/linux

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Mark Salyzyn 3fe1e271c7 ovl: filter of trusted xattr results in audit

commit 5c2e9f346b 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: a082c6f680 ("ovl: filter trusted xattr for non-admin")
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2019-10-05 12:30:34 +02:00

copy_up.c

ovl: fsync after copy-up

2016-10-31 14:42:14 +01:00

dir.c

ovl: persistent inode numbers for upper hardlinks

2018-04-13 19:47:50 +02:00

inode.c

ovl: filter of trusted xattr results in audit

2019-10-05 12:30:34 +02:00

Kconfig

ovl: rename filesystem type to "overlay"