Jann Horn 42a0cc3478 sys: don't hold uts_sem while accessing userspace memory ... Holding uts_sem as a writer while accessing userspace memory allows a namespace admin to stall all processes that attempt to take uts_sem. Instead, move data through stack buffers and don't access userspace memory while uts_sem is held. Cc: stable@vger.kernel.org Fixes: 1da177e4c3 ("Linux-2.6.12-rc2") Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>		2018-08-11 02:05:53 -05:00
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boot	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
configs	sparc64: vcc: Enable VCC module in linux	2017-08-15 21:33:50 -07:00
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2018-01-31 14:22:45 -08:00
include	mm: introduce ARCH_HAS_PTE_SPECIAL	2018-06-07 17:34:35 -07:00
kernel	sys: don't hold uts_sem while accessing userspace memory	2018-08-11 02:05:53 -05:00
lib	sparc64: repair calling incorrect hweight function from stubs	2017-12-27 20:29:48 -05:00
math-emu	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
mm	treewide: use PHYS_ADDR_MAX to avoid type casting ULLONG_MAX	2018-06-15 07:55:25 +09:00
net	treewide: kmalloc() -> kmalloc_array()	2018-06-12 16:19:22 -07:00
oprofile
power	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
prom	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
vdso	kbuild: mark $(targets) as .SECONDARY and remove .PRECIOUS markers	2018-04-07 19:04:02 +09:00
Kbuild	vDSO for sparc	2017-11-15 14:21:03 +09:00
Kconfig	arch/*: Kconfig: fix documentation for NMI watchdog	2018-06-15 12:48:59 -03:00
Kconfig.debug	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Makefile	kbuild: add machine size to CHECKFLAGS	2018-06-01 11:36:58 +09:00