Vladis Dronov 9dea954829 ptp: free ptp device pin descriptors properly ... [ Upstream commit 75718584cb ] There is a bug in ptp_clock_unregister(), where ptp_cleanup_pin_groups() first frees ptp->pin_{,dev_}attr, but then posix_clock_unregister() needs them to destroy a related sysfs device. These functions can not be just swapped, as posix_clock_unregister() frees ptp which is needed in the ptp_cleanup_pin_groups(). Fix this by calling ptp_cleanup_pin_groups() in ptp_clock_release(), right before ptp is freed. This makes this patch fix an UAF bug in a patch which fixes an UAF bug. Reported-by: Antti Laakso <antti.laakso@intel.com> Fixes: a33121e548 ("ptp: fix the race between the release of ptp_clock and cdev") Link: https://lore.kernel.org/netdev/3d2bd09735dbdaf003585ca376b7c1e5b69a19bd.camel@intel.com/ Signed-off-by: Vladis Dronov <vdronov@redhat.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-01-23 08:21:35 +01:00
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Kconfig	ptp: support DPAA FMan 1588 timer in ptp_qoriq	2018-06-26 22:15:14 +09:00
Makefile	…
ptp_chardev.c	ptp: check gettime64 return code in PTP_SYS_OFFSET ioctl	2019-02-12 19:46:59 +01:00
ptp_clock.c	ptp: free ptp device pin descriptors properly	2020-01-23 08:21:35 +01:00
ptp_dte.c	headers: separate linux/mod_devicetable.h from linux/platform_device.h	2018-07-07 17:52:26 +02:00
ptp_ixp46x.c	…
ptp_kvm.c	…
ptp_pch.c	…
ptp_private.h	ptp: fix the race between the release of ptp_clock and cdev	2020-01-04 19:13:35 +01:00
ptp_qoriq.c	ptp_qoriq: use div_u64/div_u64_rem for 64-bit division	2018-08-06 10:43:35 -07:00
ptp_sysfs.c	…