fanotify: Taint on use of FANOTIFY_ACCESS_PERMISSIONS
authorBen Hutchings <ben@decadent.org.uk>
Wed, 13 Jul 2016 00:37:22 +0000 (01:37 +0100)
committerYves-Alexis Perez <corsac@debian.org>
Wed, 21 Feb 2018 15:29:03 +0000 (15:29 +0000)
commit10eaf275fa6e8c29581986519e90800f3329cb71
tree4de6826ec42cf34446b34a3a6919fb1a150f727f
parentc008ad343ab1e8604490131e25a5a9f134faf58d
fanotify: Taint on use of FANOTIFY_ACCESS_PERMISSIONS

Various free and proprietary AV products use this feature and users
apparently want it.  But punting access checks to userland seems like
an easy way to deadlock the system, and there will be nothing we can
do about that.  So warn and taint the kernel if this feature is
actually used.

Gbp-Pq: Topic debian
Gbp-Pq: Name fanotify-taint-on-use-of-fanotify_access_permissions.patch
fs/notify/fanotify/fanotify_user.c