Miroslav Lichvar d65f740eff drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl ... commit 5515e9a6273b8c02034466bcbd717ac9f53dab99 upstream. The PPS assert/clear offset corrections are set by the PPS_SETPARAMS ioctl in the pps_ktime structs, which also contain flags. The flags are not initialized by applications (using the timepps.h header) and they are not used by the kernel for anything except returning them back in the PPS_GETPARAMS ioctl. Set the flags to zero to make it clear they are unused and avoid leaking uninitialized data of the PPS_SETPARAMS caller to other applications that have a read access to the PPS device. Link: http://lkml.kernel.org/r/20190702092251.24303-1-mlichvar@redhat.com Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Rodolfo Giometti <giometti@enneenne.com> Cc: Greg KH <greg@kroah.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2019-08-04 09:35:02 +02:00
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clients	pps: do not crash when failed to register	2016-08-10 11:49:25 +02:00
generators	pps: remove unreachable code	2011-03-22 17:44:17 -07:00
kapi.c	ntp/pps: use y2038 safe types in pps_event_time	2015-10-01 09:59:16 -07:00
kc.c	ntp/pps: use y2038 safe types in pps_event_time	2015-10-01 09:59:16 -07:00
kc.h	pps: add kernel consumer support	2011-01-13 08:03:21 -08:00
Kconfig	pps: hide more configuration symbols behind CONFIG_PPS	2013-04-30 17:04:08 -07:00
Makefile	pps: add parallel port PPS signal generator	2011-01-13 08:03:21 -08:00
pps.c	drivers/pps/pps.c: clear offset flags in PPS_SETPARAMS ioctl	2019-08-04 09:35:02 +02:00
sysfs.c	PPS: convert class code to use dev_groups	2013-08-19 21:22:34 -07:00