Jan Kara b2d22b6bb3 fanotify: Allow copying of file handle to userspace ... When file handle is embedded inside fanotify_event and usercopy checks are enabled, we get a warning like: Bad or missing usercopy whitelist? Kernel memory exposure attempt detected from SLAB object 'fanotify_event' (offset 40, size 8)! WARNING: CPU: 1 PID: 7649 at mm/usercopy.c:78 usercopy_warn+0xeb/0x110 mm/usercopy.c:78 Annotate handling in fanotify_event properly to mark copying it to userspace is fine. Reported-by: syzbot+2c49971e251e36216d1f@syzkaller.appspotmail.com Fixes: a8b13aa20a ("fanotify: enable FAN_REPORT_FID init flag") Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Amir Goldstein <amir73il@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz>		2019-03-19 09:29:07 +01:00
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Kconfig	fanotify: Select EXPORTFS	2019-02-14 17:46:33 +01:00
Makefile	fanotify: fanotify_init syscall declaration	2010-07-28 09:58:55 -04:00
fanotify.c	fanotify: Make waits for fanotify events only killable	2019-02-21 11:47:23 +01:00
fanotify.h	fanotify: Use interruptible wait when waiting for permission events	2019-02-18 12:41:16 +01:00
fanotify_user.c	fanotify: Allow copying of file handle to userspace	2019-03-19 09:29:07 +01:00