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>
Fri, 9 Feb 2018 12:58:52 +0000 (12:58 +0000)
commit41da43853c699233af7683929545116206d74f3a
tree3bdaca1f25f6c10959b736712e2cb9b6d15aadc4
parent459bc14eab7223d3245e8ba259ea643be6352f49
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