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Adrian Hunter 632a300260 perf callchain: Fix segfault in thread__resolve_callchain_sample() 
commit aceb98261ea7d9fe38f9c140c5531f0b13623832 upstream.

Do not dereference 'chain' when it is NULL.

  $ perf record -e intel_pt//u -e branch-misses:u uname
  $ perf report --itrace=l --branch-history
  perf: Segmentation fault

Fixes: e9024d519d89 ("perf callchain: Honour the ordering of PERF_CONTEXT_{USER,KERNEL,etc}")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20191114142538.4097-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-09 10:20:02 +01:00
..
accounting
…
arch
x86/insn: Add some Intel instructions to the opcode map
2019-12-31 16:45:40 +01:00
bpf
tools, bpf: Fix build for 'make -s tools/bpf O=<dir>'
2019-12-31 16:45:47 +01:00
build
tools build: Add capability-related feature detection
2019-08-12 17:14:14 -03:00
cgroup
iocost_monitor: Report debt
2019-09-10 12:31:39 -06:00
debugging
…
firewire
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
2019-05-30 11:26:35 -07:00
firmware
Driver Core and debugfs changes for 5.3-rc1
2019-07-12 12:24:03 -07:00
gpio
tools: gpio: Correctly add make dependencies for gpio_utils
2019-11-13 13:46:04 +01:00
hv
- First round of vmbus hibernation support from Dexuan Cui.
2019-09-24 12:36:31 -07:00
iio
tools: iio: add .gitignore
2019-08-18 20:45:57 +01:00
include
tools headers UAPI: Sync sched.h with the kernel
2019-10-15 12:44:00 -03:00
io_uring
tools/io_uring: sync with liburing
2019-05-23 10:25:26 -06:00
kvm/kvm_stat
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499
2019-06-19 17:09:53 +02:00
laptop
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 505
2019-06-19 17:11:22 +02:00
leds
leds: core: Add support for composing LED class device names
2019-07-25 20:07:52 +02:00
lib
libtraceevent: Fix memory leakage in copy_filter_type
2019-12-31 16:45:45 +01:00
memory-model
tools/memory-model: Fix data race detection for unordered store and load
2019-12-31 16:43:40 +01:00
nfsd
…
objtool
ubsan, x86: Annotate and allow __ubsan_handle_shift_out_of_bounds() in uaccess regions
2019-12-31 16:44:25 +01:00
pci
pci-v5.3-changes
2019-07-15 20:44:49 -07:00
pcmcia
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 247
2019-06-19 17:09:08 +02:00
perf
perf callchain: Fix segfault in thread__resolve_callchain_sample()
2020-01-09 10:20:02 +01:00
power
tools/power/x86/intel-speed-select: Ignore missing config level
2020-01-04 19:18:20 +01:00
scripts
perf build: Do not use -Wshadow on gcc < 4.8
2019-07-23 09:04:54 -03:00
spi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 178
2019-05-30 11:29:19 -07:00
testing
rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
2020-01-09 10:19:59 +01:00
thermal/tmon
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 89
2019-05-24 17:37:52 +02:00
time
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282
2019-06-05 17:36:37 +02:00
usb
usbip: tools: fix fd leakage in the function of read_attr_usbip_status
2019-11-29 10:10:21 +01:00
virtio
tools/virtio: xen stub
2019-10-13 09:38:27 -04:00
vm
tools/vm/slabinfo: add sorting info to help menu
2019-07-12 11:05:46 -07:00
wmi
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
Makefile
tools: Keep list of tools in alphabetical order
2019-08-14 10:59:59 -03:00