linux/tools
He Zhe 06ed429b90 perf cpumap: Fix writing to illegal memory in handling cpumap mask
[ Upstream commit 5f5e25f1c7 ]

cpu_map__snprint_mask() would write to illegal memory pointed by
zalloc(0) when there is only one cpu.

This patch fixes the calculation and adds sanity check against the input
parameters.

Signed-off-by: He Zhe <zhe.he@windriver.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Fixes: 4400ac8a9a ("perf cpumap: Introduce cpu_map__snprint_mask()")
Link: http://lkml.kernel.org/r/1564734592-15624-2-git-send-email-zhe.he@windriver.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-08-29 08:28:47 +02:00
..
accounting
arch jump_label: move 'asm goto' support test to Kconfig 2019-06-04 08:02:34 +02:00
bpf tools: bpftool: Fix json dump crash on powerpc 2019-07-26 09:14:16 +02:00
build perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz 2019-02-12 19:47:16 +01:00
cgroup
firewire
gpio
hv Tools: hv: kvp: Fix a warning of buffer overflow with gcc 8.0.1 2019-02-12 19:46:59 +01:00
iio iio: iio-utils: Fix possible incorrect mask calculation 2019-07-31 07:27:02 +02:00
include bpf: fix uapi bpf_prog_info fields alignment 2019-07-26 09:14:15 +02:00
kvm/kvm_stat tools/kvm_stat: fix fields filter for child events 2019-06-19 08:18:05 +02:00
laptop
leds
lib bpf, libbpf, smatch: Fix potential NULL pointer dereference 2019-07-26 09:14:15 +02:00
memory-model tools/memory-model: Rename litmus tests to comply to norm7 2018-07-17 09:30:36 +02:00
nfsd
objtool objtool: Support GCC 9 cold subfunction naming scheme 2019-08-06 19:06:57 +02:00
pci tools: PCI: Add MSI-X support 2018-07-19 11:47:13 +01:00
pcmcia
perf perf cpumap: Fix writing to illegal memory in handling cpumap mask 2019-08-29 08:28:47 +02:00
power cpupower : frequency-set -r option misses the last cpu in related cpu list 2019-07-26 09:14:03 +02:00
scripts
spi
testing selftests: forwarding: gre_multipath: Fix flower filters 2019-08-29 08:28:30 +02:00
thermal/tmon
time
usb usbip: fix vhci_hcd controller counting 2019-04-20 09:16:01 +02:00
virtio virtio: fix test build after uio.h change 2019-01-13 09:51:03 +01:00
vm tools/vm/page-types.c: fix "defined but not used" warning 2018-09-04 16:45:02 -07:00
wmi
Makefile