Martin Schwidefsky aa70f06710 s390: limit brk randomization to 32MB ...

[ Upstream commit cd479eccd2 ]

For a 64-bit process the randomization of the program break is quite
large with 1GB. That is as big as the randomization of the anonymous
mapping base, for a test case started with '/lib/ld64.so.1 <exec>'
it can happen that the heap is placed after the stack. To avoid
this limit the program break randomization to 32MB for 64-bit and
keep 8MB for 31-bit.

Reported-by: Stefan Liebler <stli@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>

2019-05-04 08:49:06 +02:00

..

appldata

sched/cputime: Convert kcpustat to nsecs

2018-10-20 09:51:32 +02:00

boot

s390/decompressor: fix initrd corruption caused by bss clear

2017-04-12 12:41:14 +02:00

configs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

2016-10-04 14:05:52 -07:00

crypto

s390/crc32-vx: use expoline for indirect branches

2018-05-25 16:12:57 +02:00

hypfs

hypfs_kill_super(): deal with failed allocations

2018-04-24 09:34:17 +02:00

include

s390: limit brk randomization to 32MB

2019-05-04 08:49:06 +02:00

kernel

s390/smp: Fix calling smp_call_ipl_cpu() from ipl CPU

2019-01-31 08:12:36 +01:00

kvm

s390/sthyi: Fix machine name validity indication

2018-11-13 11:16:49 -08:00

lib

s390/lib: use expoline for all bcr instructions

2018-09-15 09:43:06 +02:00

mm

s390/mm: Check for valid vma before zapping in gmap_discard

2018-12-01 09:44:25 +01:00

net

s390: fix br_r1_trampoline for machines without exrl

2018-09-05 09:20:10 +02:00

numa

s390/mm: Fix ERROR: "__node_distance" undefined!

2018-11-27 16:09:39 +01:00

oprofile

s390/dumpstack: restore reliable indicator for call traces

2016-10-17 14:44:30 +02:00

pci

s390/pci: fix out of bounds access during irq setup

2018-09-05 09:20:10 +02:00

tools

s390/facilities: do not generate DWORDS define anymore

2016-07-31 05:27:59 -04:00

defconfig

mm/usercopy: get rid of CONFIG_DEBUG_STRICT_USER_COPY_CHECKS

2016-08-30 10:10:21 -07:00

Kbuild

s390/numa: add core infrastructure

2015-08-03 18:40:25 +02:00

Kconfig

s390: add sysfs attributes for spectre

2018-04-29 11:32:00 +02:00

Kconfig.debug

arch: consolidate CONFIG_STRICT_DEVM in lib/Kconfig.debug

2016-01-09 06:30:49 -08:00

Makefile

s390: add automatic detection of the spectre defense

2018-04-29 11:31:59 +02:00