Eric W. Biederman c94bea2e4b ptrace: Properly initialize ptracer_cred on fork ... commit c70d9d809f upstream. When I introduced ptracer_cred I failed to consider the weirdness of fork where the task_struct copies the old value by default. This winds up leaving ptracer_cred set even when a process forks and the child process does not wind up being ptraced. Because ptracer_cred is not set on non-ptraced processes whose parents were ptraced this has broken the ability of the enlightenment window manager to start setuid children. Fix this by properly initializing ptracer_cred in ptrace_init_task This must be done with a little bit of care to preserve the current value of ptracer_cred when ptrace carries through fork. Re-reading the ptracer_cred from the ptracing process at this point is inconsistent with how PT_PTRACE_CAP has been maintained all of these years. Tested-by: Takashi Iwai <tiwai@suse.de> Fixes: 64b875f7ac ("ptrace: Capture the ptracer's creds not PT_PTRACE_CAP") Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-06-14 13:16:20 +02:00
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acpi	Merge branch 'acpi-pci'	2015-11-07 01:30:10 +01:00
asm-generic	asm-generic: make copy_from_user() zero the destination properly	2016-09-24 10:07:45 +02:00
clocksource
crypto	crypto: ahash - Fix EINPROGRESS notification callback	2017-04-21 09:30:06 +02:00
drm	drm/ttm, drm/vmwgfx: Relax permission checking when opening surfaces	2017-04-12 12:38:33 +02:00
dt-bindings	ARM: DT updates for v4.4	2015-11-10 15:06:26 -08:00
keys
kvm	KVM: arm/arm64: arch_timer: Preserve physical dist. active state on LR.active	2015-11-24 18:07:40 +01:00
linux	ptrace: Properly initialize ptracer_cred on fork	2017-06-14 13:16:20 +02:00
math-emu
media	videobuf2-core: Check user space planes array in dqbuf	2016-05-04 14:48:50 -07:00
memory
misc
net	net: ping: do not abuse udp_poll()	2017-06-14 13:16:19 +02:00
pcmcia
ras
rdma	RDMA/core: Fix incorrect structure packing for booleans	2017-03-12 06:37:29 +01:00
rxrpc
scsi	scsi: libiscsi: add lock around task lists to fix list corruption regression	2017-03-26 12:13:19 +02:00
soc	ARM: at91: define LPDDR types	2017-03-12 06:37:24 +01:00
sound	ALSA: rawmidi: Make snd_rawmidi_transmit() race-free	2016-02-17 12:30:58 -08:00
target	target: Convert ACL change queue_depth se_session reference usage	2017-05-20 14:26:58 +02:00
trace	tracing: Add #undef to fix compile error	2017-03-18 19:09:57 +08:00
uapi	net: ipv6: RTF_PCPU should not be settable from userspace	2017-05-02 21:19:53 -07:00
video	drm/imx: Match imx-ipuv3-crtc components using device node in platform data	2016-06-07 18:14:37 -07:00
xen	xen: Fix page <-> pfn conversion on 32 bit systems	2016-05-11 11:21:14 +02:00
Kbuild