Hendrik Brueckner 4bbaf2584b s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero ...

Correct a trinity finding for the perf_event_open() system call with
a perf event attribute structure that uses a frequency but has the
sampling frequency set to zero.  This causes a FP divide exception during
the sample rate initialization for the hardware sampling facility.

Fixes: 8c069ff4bd ("s390/perf: add support for the CPU-Measurement Sampling Facility")
Cc: stable@vger.kernel.org # 3.14+
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2018-05-08 15:56:36 +02:00

..

appldata

…

boot

s390/boot: remove unused COMPILE_VERSION and ccflags-y

2018-04-16 09:10:24 +02:00

configs

s390: update defconfigs

2018-04-27 06:51:31 +02:00

crypto

s390/crc32-vx: use expoline for indirect branches

2018-05-07 09:07:34 +02:00

hypfs

hypfs_kill_super(): deal with failed allocations

2018-04-15 23:48:04 -04:00

include

s390: extend expoline to BC instructions

2018-05-07 21:12:42 +02:00

kernel

s390/cpum_sf: ensure sample frequency of perf event attributes is non-zero

2018-05-08 15:56:36 +02:00

kvm

KVM: s390: provide counters for all interrupt injects/delivery

2018-03-14 19:21:18 +00:00

lib

s390/lib: use expoline for indirect branches

2018-05-07 09:07:36 +02:00

mm

mm/gup.c: document return value

2018-04-13 17:10:27 -07:00

net

s390: use expoline thunks in the BPF JIT

2018-05-07 21:12:43 +02:00

numa

…

oprofile

…

pci

…

purgatory

s390/kexec_file: add generated files to .gitignore

2018-04-16 09:10:23 +02:00

tools

KVM: s390: implement CPU model only facilities

2018-03-09 09:44:17 +00:00

defconfig

s390: update defconfig

2018-04-16 10:29:34 +02:00

Kbuild

s390/kexec_file: Add purgatory

2018-04-16 09:10:22 +02:00

Kconfig

s390: add support for IBM z14 Model ZR1

2018-04-16 09:10:24 +02:00

Kconfig.debug

…

Makefile

s390: add automatic detection of the spectre defense

2018-03-28 08:38:24 +02:00