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
include	Merge branch 'timers-2038-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-06-04 21:02:18 -07:00
kernel	sys: don't hold uts_sem while accessing userspace memory	2018-08-11 02:05:53 -05:00
lib	alpha: Remove custom dec_and_lock() implementation	2018-06-12 23:33:24 +02:00
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	signal/alpha: Use force_sig_fault where appropriate	2018-04-25 10:40:59 -05:00
oprofile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
defconfig	alpha: defconfig: Cleanup from old Kconfig options	2017-09-04 12:04:33 -07:00
Kconfig	alpha: Remove custom dec_and_lock() implementation	2018-06-12 23:33:24 +02:00
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