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Adrian Hunter 4f579272b0 perf callchain: Fix segfault in thread__resolve_callchain_sample() 
[ Upstream commit aceb98261e ]

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: e9024d519d ("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: Sasha Levin <sashal@kernel.org>
2019-12-17 20:35:51 +01:00
..
c++
perf tools: Fix a clang 7.0 compilation error
2018-06-25 11:59:37 -03:00
cs-etm-decoder
perf cs-etm: Fix start tracing packet handling
2018-07-31 10:57:56 -03:00
include
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intel-pt-decoder
perf intel-pt: Fix sample timestamp wrt non-taken branches
2019-05-25 18:23:33 +02:00
libunwind
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scripting-engines
perf script python: Add trace_context extension module to sys.modules
2019-04-05 22:33:14 +02:00
annotate.c
perf annotate: Return appropriate error code for allocation failures
2019-11-06 13:05:44 +01:00
annotate.h
perf annotate: Fix parsing aarch64 branch instructions after objdump update
2018-08-30 15:51:54 -03:00
arm-spe-pkt-decoder.c
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arm-spe-pkt-decoder.h
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arm-spe.c
…
arm-spe.h
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auxtrace.c
perf auxtrace: Define auxtrace record alignment
2019-03-23 20:10:11 +01:00
auxtrace.h
perf auxtrace: Define auxtrace record alignment
2019-03-23 20:10:11 +01:00
block-range.c
…
block-range.h
…
bpf-loader.c
perf bpf: Make bpf__setup_output_event() return the bpf-output event
2018-08-08 15:55:58 -03:00
bpf-loader.h
perf bpf: Make bpf__setup_output_event() return the bpf-output event
2018-08-08 15:55:58 -03:00
bpf-prologue.c
docs: Fix some broken references
2018-06-15 18:10:01 -03:00
bpf-prologue.h
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branch.c
…
branch.h
…
Build
perf auxtrace: Support for perf report -D for s390
2018-08-03 10:34:18 -03:00
build-id.c
perf build-id: Fix memory leak in print_sdt_events()
2019-04-20 09:15:57 +02:00
build-id.h
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cache.h
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call-path.c
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call-path.h
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callchain.c
perf report: Fix wrong iteration count in --branch-history
2019-02-20 10:25:39 +01:00
callchain.h
perf report: Fix wrong iteration count in --branch-history
2019-02-20 10:25:39 +01:00
cgroup.c
perf cgroup: Make evlist__find_cgroup() more compact
2018-06-04 10:28:50 -03:00
cgroup.h
…
cloexec.c
…
cloexec.h
…
color.c
…
color.h
…
comm.c
perf tools: Fix struct comm_str removal crash
2018-07-24 14:54:03 -03:00
comm.h
…
compress.h
perf tools: Add is_compressed callback to compressions array
2018-08-20 08:54:59 -03:00
config.c
perf config: Fix a memory leak in collect_config()
2019-04-20 09:15:57 +02:00
config.h
perf config: Call perf_config__init() lazily
2018-05-16 16:11:09 -03:00
counts.c
…
counts.h
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cpumap.c
perf cpumap: Fix writing to illegal memory in handling cpumap mask
2019-08-29 08:28:47 +02:00
cpumap.h
…
cs-etm.c
perf cs-etm: Correct packets swapping in cs_etm__flush()
2019-01-26 09:32:41 +01:00
cs-etm.h
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ctype.c
…
data-convert-bt.c
perf data: Fix 'strncat may truncate' build failure with recent gcc
2019-06-22 08:15:18 +02:00
data-convert-bt.h
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data-convert.h
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data.c
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data.h
…
db-export.c
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db-export.h
…
debug.c
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debug.h
…
demangle-java.c
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demangle-java.h
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demangle-rust.c
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demangle-rust.h
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drv_configs.c
…
drv_configs.h
…
dso.c
perf dso: Fix unchecked usage of strncpy()
2019-02-12 19:47:11 +01:00
dso.h
perf tools: Remove ext from struct kmod_path
2018-08-20 08:54:59 -03:00
dump-insn.c
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dump-insn.h
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dwarf-aux.c
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dwarf-aux.h
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dwarf-regs.c
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env.c
perf env: Also consider env->arch == NULL as local operation
2019-01-09 17:38:43 +01:00
env.h
perf machine: Add nr_cpus_avail()
2018-05-22 10:52:49 -03:00
event.c
perf tools: Use fallback for sample_addr_correlates_sym() cases
2019-01-09 17:38:42 +01:00
event.h
perf machine: Synthesize and process mmap events for x86 PTI entry trampolines
2018-05-23 10:26:39 -03:00
evlist.c
perf tools: Add missing sigqueue() prototype for systems lacking it
2019-01-26 09:32:41 +01:00
evlist.h
perf evlist: Introduce force_leader() method
2018-05-21 14:40:54 -03:00
evsel_fprintf.c
…
evsel.c
perf evsel: Make perf_evsel__name() accept a NULL argument
2019-07-26 09:14:08 +02:00
evsel.h
perf annotate: Loop group events directly in annotation__calc_percent()
2018-08-08 15:55:47 -03:00
expr.h
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expr.y
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find-vdso-map.c
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genelf_debug.c
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genelf.c
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genelf.h
…
generate-cmdlist.sh
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group.h
…
header.c
perf tools: Fix segfault in cpu_cache_level__read()
2019-10-11 18:21:28 +02:00
header.h
perf tools: Fix the build on the alpine:edge distro
2018-07-30 13:15:03 -03:00
help-unknown-cmd.c
…
help-unknown-cmd.h
…
hist.c
perf tools: Fix time sorting
2019-11-12 19:20:37 +01:00
hist.h
perf hists: Clarify callchain disabling when available
2018-07-24 14:37:33 -03:00
intel-bts.c
perf intel-pt/bts: Calculate cpumode for synthesized samples
2018-11-21 09:19:19 +01:00
intel-bts.h
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intel-pt.c
perf intel-pt: Fix divide by zero when TSC is not available
2019-03-23 20:10:11 +01:00
intel-pt.h
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intlist.c
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intlist.h
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jit.h
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jitdump.c
perf inject jit: Fix JIT_CODE_MOVE filename
2019-10-17 13:45:15 -07:00
jitdump.h
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kvm-stat.h
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levenshtein.c
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levenshtein.h
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llvm-utils.c
perf llvm: Don't access out-of-scope array
2019-10-17 13:45:14 -07:00
llvm-utils.h
perf llvm: Allow passing options to llc in addition to clang
2018-08-20 08:54:58 -03:00
lzma.c
perf tools: Add lzma_is_compressed function
2018-08-20 08:54:59 -03:00
machine.c
perf callchain: Fix segfault in thread__resolve_callchain_sample()
2019-12-17 20:35:51 +01:00
machine.h
perf record: Fix module size on s390
2019-08-16 10:12:41 +02:00
map.c
perf map: Fix overlapped map handling
2019-11-06 13:05:41 +01:00
map.h
perf map: Optimize maps__fixup_overlappings()
2018-08-08 15:56:00 -03:00
mem2node.c
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mem2node.h
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mem-events.c
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mem-events.h
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memswap.c
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memswap.h
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metricgroup.c
perf stat: Fix group lookup for metric group
2019-07-26 09:14:15 +02:00
metricgroup.h
perf stat: Add transaction flag (-T) support for s390
2018-07-24 14:49:37 -03:00
mmap.c
perf mmap: Store real cpu number in 'struct perf_mmap'
2018-08-20 08:54:59 -03:00
mmap.h
perf mmap: Store real cpu number in 'struct perf_mmap'
2018-08-20 08:54:59 -03:00
namespaces.c
perf tools: Restore proper cwd on return from mnt namespace
2018-12-17 09:24:33 +01:00
namespaces.h
perf tools: Restore proper cwd on return from mnt namespace
2018-12-17 09:24:33 +01:00
ordered-events.c
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ordered-events.h
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parse-branch-options.c
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parse-branch-options.h
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parse-events.c
perf build-id: Fix memory leak in print_sdt_events()
2019-04-20 09:15:57 +02:00
parse-events.h
perf parse-events: Handle uncore event aliases in small groups properly
2018-05-30 10:40:44 -03:00
parse-events.l
perf record: Enable arbitrary event names thru name= modifier
2018-06-06 12:52:04 -03:00
parse-events.y
perf tools: Fix error index for pmu event parser
2018-06-07 15:50:14 -03:00
parse-regs-options.c
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parse-regs-options.h
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path.c
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path.h
…
perf_regs.c
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perf_regs.h
…
perf-hooks-list.h
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perf-hooks.c
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perf-hooks.h
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PERF-VERSION-GEN
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pmu.c
perf pmu: Fix uncore PMU alias list for ARM64
2019-07-14 08:11:17 +02:00
pmu.h
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pmu.l
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pmu.y
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print_binary.c
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print_binary.h
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probe-event.c
perf probe: Fix getting the kernel map
2019-03-27 14:14:40 +09:00
probe-event.h
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probe-file.c
perf probe: Fix unchecked usage of strncpy()
2019-02-12 19:47:11 +01:00
probe-file.h
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probe-finder.c
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probe-finder.h
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pstack.c
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pstack.h
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python-ext-sources
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python.c
perf python: Do not force closing original perf descriptor in evlist.get_pollfd()
2019-02-12 19:47:18 +01:00
rb_resort.h
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rblist.c
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rblist.h
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record.c
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rwsem.c
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rwsem.h
…
s390-cpumsf-kernel.h
perf report: Add raw report support for s390 auxiliary trace
2018-08-08 15:26:48 -03:00
s390-cpumsf.c
perf report: Add s390 diagnosic sampling descriptor size
2019-04-05 22:33:07 +02:00
s390-cpumsf.h
perf auxtrace: Support for perf report -D for s390
2018-08-03 10:34:18 -03:00
sane_ctype.h
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session.c
perf session: Fix potential NULL pointer dereference found by the smatch tool
2019-07-31 07:27:06 +02:00
session.h
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setns.c
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setup.py
perf python: Use -Wno-redundant-decls to build with PYTHON=python3
2018-10-05 11:11:55 -03:00
smt.c
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smt.h
…
sort.c
perf report: Don't shadow inlined symbol with different addr range
2019-04-05 22:33:05 +02:00
sort.h
tools lib traceevent, perf tools: Rename struct pevent to struct tep_handle
2018-08-10 15:29:35 -03:00
srcline.c
perf report: Don't shadow inlined symbol with different addr range
2019-04-05 22:33:05 +02:00
srcline.h
…
stat-shadow.c
perf stat: Make metric event lookup more robust
2019-07-26 09:14:15 +02:00
stat.c
perf stat: Reset previous counts on repeat with interval
2019-10-11 18:21:29 +02:00
stat.h
perf stat: Reset previous counts on repeat with interval
2019-10-11 18:21:29 +02:00
strbuf.c
perf strbuf: Match va_{add,copy} with va_end
2018-11-13 11:08:22 -08:00
strbuf.h
…
strfilter.c
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strfilter.h
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string2.h
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string.c
…
strlist.c
…
strlist.h
…
svghelper.c
perf svghelper: Fix unchecked usage of strncpy()
2019-01-26 09:32:40 +01:00
svghelper.h
…
symbol_fprintf.c
…
symbol-elf.c
perf symbols: Filter out hidden symbols from labels
2019-03-13 14:02:37 -07:00
symbol-minimal.c
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symbol.c
perf annotate: Fix s390 gap between kernel end and module start
2019-08-16 10:12:41 +02:00
symbol.h
perf annotate: Fix s390 gap between kernel end and module start
2019-08-16 10:12:41 +02:00
syscalltbl.c
perf trace arm64: Use generated syscall table
2018-07-24 14:53:01 -03:00
syscalltbl.h
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target.c
…
target.h
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term.c
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term.h
…
thread_map.c
…
thread_map.h
…
thread-stack.c
perf intel-pt: Insert callchain context into synthesized callchains
2018-11-21 09:19:19 +01:00
thread-stack.h
perf intel-pt: Insert callchain context into synthesized callchains
2018-11-21 09:19:19 +01:00
thread.c
perf db-export: Fix thread__exec_comm()
2019-08-16 10:12:41 +02:00
thread.h
perf thread: Add fallback functions for cases where cpumode is insufficient
2019-01-09 17:38:42 +01:00
time-utils.c
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time-utils.h
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tool.h
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top.c
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top.h
perf annotate stdio: Use annotation_options consistently
2018-06-04 10:28:52 -03:00
trace-event-info.c
perf tools: Cleanup trace-event-info 'tdata' leak
2018-11-13 11:08:22 -08:00
trace-event-parse.c
perf tools: Free 'printk' string in parse_ftrace_printk()
2018-11-13 11:08:22 -08:00
trace-event-read.c
perf tools: Free temporary 'sys' string in read_event_files()
2018-11-13 11:08:22 -08:00
trace-event-scripting.c
tools lib traceevent, perf tools: Rename struct pevent to struct tep_handle
2018-08-10 15:29:35 -03:00
trace-event.c
tools lib traceevent, perf tools: Rename 'enum pevent_flag' to 'enum tep_flag'
2018-08-13 15:22:18 -03:00
trace-event.h
tools lib traceevent, perf tools: Rename pevent alloc / free APIs
2018-08-13 15:21:43 -03:00
trigger.h
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tsc.c
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tsc.h
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units.c
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units.h
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unwind-libdw.c
perf unwind: Take pgoff into account when reporting elf to libdwfl
2018-11-27 16:12:59 +01:00
unwind-libdw.h
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unwind-libunwind-local.c
perf script: Show correct offsets for DWARF-based unwinding
2018-07-24 14:53:11 -03:00
unwind-libunwind.c
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unwind.h
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usage.c
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util-cxx.h
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util.c
perf tools: No need to unconditionally read the max_stack sysctls
2018-05-17 16:31:32 -03:00
util.h
perf tools: No need to unconditionally read the max_stack sysctls
2018-05-17 16:31:32 -03:00
values.c
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values.h
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vdso.c
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vdso.h
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xyarray.c
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xyarray.h
libperf: Fix alignment trap with xyarray contents in 'perf stat'
2019-10-05 13:09:47 +02:00
zlib.c
perf tools: Add gzip_is_compressed function
2018-08-20 08:54:59 -03:00