Aleksa Sarai 54ebbfb160 tty: add TIOCGPTPEER ioctl ... When opening the slave end of a PTY, it is not possible for userspace to safely ensure that /dev/pts/$num is actually a slave (in cases where the mount namespace in which devpts was mounted is controlled by an untrusted process). In addition, there are several unresolvable race conditions if userspace were to attempt to detect attacks through stat(2) and other similar methods [in addition it is not clear how userspace could detect attacks involving FUSE]. Resolve this by providing an interface for userpace to safely open the "peer" end of a PTY file descriptor by using the dentry cached by devpts. Since it is not possible to have an open master PTY without having its slave exposed in /dev/pts this interface is safe. This interface currently does not provide a way to get the master pty (since it is not clear whether such an interface is safe or even useful). Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: Valentin Rothberg <vrothberg@suse.com> Signed-off-by: Aleksa Sarai <asarai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-06-09 12:27:54 +02:00
..
alchemy	MIPS: clockevent drivers: Set ->min_delta_ticks and ->max_delta_ticks	2017-04-14 13:11:16 -07:00
ar7	MIPS: Audit and remove any unnecessary uses of module.h	2017-02-14 09:00:25 +00:00
ath25
ath79	MIPS: Audit and remove any unnecessary uses of module.h	2017-02-14 09:00:25 +00:00
bcm47xx	MIPS: BCM47XX: Fix button inversion for Asus WL-500W	2017-02-17 11:16:46 +00:00
bcm63xx	MIPS: Audit and remove any unnecessary uses of module.h	2017-02-14 09:00:25 +00:00
bmips	MIPS: BMIPS: Support APPENDED_DTB	2016-10-06 17:31:02 +02:00
boot	devicetree: Move include prefixes from arch to separate directory	2017-05-18 23:55:48 -07:00
cavium-octeon	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
cobalt	MIPS: Cobalt: Fix typo	2016-08-03 08:16:30 +02:00
configs	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
dec	format-security: move static strings to const	2017-05-08 17:15:14 -07:00
emma	MIPS: Avoid old-style declaration	2017-01-25 02:51:11 +01:00
fw
generic	MIPS: generic/kexec: add support for a DTB passed in a separate buffer	2017-01-03 16:34:46 +01:00
include	tty: add TIOCGPTPEER ioctl	2017-06-09 12:27:54 +02:00
jazz	MIPS: Audit and remove any unnecessary uses of module.h	2017-02-14 09:00:25 +00:00
jz4740	MIPS: clockevent drivers: Set ->min_delta_ticks and ->max_delta_ticks	2017-04-14 13:11:16 -07:00
kernel	kthread: fix boot hang (regression) on MIPS/OpenRISC	2017-05-29 09:40:54 -07:00
kvm	KVM: add kvm_{test,clear}_request to replace {test,clear}_bit	2017-04-27 14:12:22 +02:00
lantiq	MIPS: smp-mt: Use CPU interrupt controller IPI IRQ domain support	2017-04-12 23:13:13 +02:00
lasat	MIPS: Audit and remove any unnecessary uses of module.h	2017-02-14 09:00:25 +00:00
lib	mips: get rid of tail-zeroing in primitives	2017-04-06 02:08:08 -04:00
loongson32	MIPS: clockevent drivers: Set ->min_delta_ticks and ->max_delta_ticks	2017-04-14 13:11:16 -07:00
loongson64	MIPS: clockevent drivers: Set ->min_delta_ticks and ->max_delta_ticks	2017-04-14 13:11:16 -07:00
math-emu	MIPS: math-emu: Fix BC1EQZ and BC1NEZ condition handling	2017-04-10 11:56:09 +02:00
mm	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
mti-malta	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
net	MIPS: BPF: Fix multiple problems in JIT skb access helpers.	2017-04-10 11:56:05 +02:00
netlogic	MIPS: Add missing include files	2017-03-08 10:38:06 +01:00
oprofile	mips: sanitize __access_ok()	2017-04-06 02:08:06 -04:00
paravirt	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>	2017-03-02 08:42:36 +01:00
pci	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
pic32	MIPS: pic32mzda: Fix linker error for pic32_get_pbclk()	2017-02-17 11:14:29 +00:00
pistachio	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2016-08-06 09:13:11 -04:00
pmcs-msp71xx	MIPS: Audit and remove any unnecessary uses of module.h	2017-02-14 09:00:25 +00:00
pnx833x	MIPS: Squash lines for simple wrapper functions	2016-10-04 16:13:57 +02:00
power
ralink	Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2017-05-01 16:15:18 -07:00
rb532	MIPS: Audit and remove any unnecessary uses of module.h	2017-02-14 09:00:25 +00:00
sgi-ip22	MIPS: Add missing include files	2017-03-08 10:38:06 +01:00
sgi-ip27	MIPS: clockevent drivers: Set ->min_delta_ticks and ->max_delta_ticks	2017-04-14 13:11:16 -07:00
sgi-ip32	MIPS: Add missing include files	2017-03-08 10:38:06 +01:00
sibyte	MIPS: Sibyte: Export symbol periph_rev to sb1250-mac network driver.	2017-04-21 03:23:24 +02:00
sni	char/genrtc: remove asm-generic/rtc.h from mips	2016-06-04 00:23:36 +02:00
txx9	MIPS: Audit and remove any unnecessary uses of module.h	2017-02-14 09:00:25 +00:00
vdso	MIPS: VDSO: Explicitly use -fno-asynchronous-unwind-tables	2017-02-17 11:32:12 +00:00
vr41xx	MIPS: Audit and remove any unnecessary uses of module.h	2017-02-14 09:00:25 +00:00
xilfpga	MIPS: xilfpga: Use irqchip instead of the legacy way	2017-01-03 16:34:39 +01:00
Kbuild	MIPS: Disable Werror when W= is set	2017-04-10 11:56:07 +02:00
Kbuild.platforms	MIPS: generic: Convert SEAD-3 to a generic board	2016-10-06 18:04:20 +02:00
Kconfig	Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus	2017-05-12 09:56:30 -07:00
Kconfig.debug	MIPS: Sibyte: Fix Kconfig warning.	2017-04-21 03:34:01 +02:00
Makefile	MIPS: generic: fix out-of-tree defconfig target builds	2017-04-11 13:17:31 +02:00
Makefile.postlink	MIPS: Fix distclean with Makefile.postlink	2017-02-13 18:57:34 +00:00