Adrian Hunter 4f579272b0 perf callchain: Fix segfault in thread__resolve_callchain_sample() ...

[ Upstream commit aceb98261ea7d9fe38f9c140c5531f0b13623832 ]

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: Sasha Levin <sashal@kernel.org>

2019-12-17 20:35:51 +01:00

..

arch

perf tools: Propagate get_cpuid() error

2019-11-06 13:05:42 +01:00

bench

perf bench numa: Fix cpu0 binding

2019-08-29 08:28:36 +02:00

Documentation

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examples/bpf

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include/bpf

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jvmti

perf jvmti: Address gcc string overflow warning for strncpy()

2019-07-26 09:14:04 +02:00

pmu-events

perf jevents: Fix period for Intel fixed counters

2019-11-06 13:05:42 +01:00

python

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scripts

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tests

perf tests: Avoid raising SEGV using an obvious NULL dereference

2019-11-06 13:05:41 +01:00

trace

perf trace beauty ioctl: Fix off-by-one error in cmd->string table

2019-10-05 13:09:50 +02:00

ui

perf hists browser: Fix potential NULL pointer dereference found by the smatch tool

2019-07-31 07:27:06 +02:00

util

perf callchain: Fix segfault in thread__resolve_callchain_sample()

2019-12-17 20:35:51 +01:00

.gitignore

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Build

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builtin-annotate.c

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builtin-bench.c

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builtin-buildid-cache.c

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builtin-buildid-list.c

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builtin-c2c.c

perf c2c: Fix memory leak in build_cl_output()

2019-11-10 11:27:24 +01:00

builtin-config.c

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builtin-data.c

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builtin-diff.c

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builtin-evlist.c

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builtin-ftrace.c

perf ftrace: Fix failure to set cpumask when only one cpu is present

2019-08-29 08:28:46 +02:00

builtin-help.c

perf help: Remove needless use of strncpy()

2019-07-03 13:14:41 +02:00

builtin-inject.c

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builtin-kallsyms.c

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builtin-kmem.c

perf kmem: Fix memory leak in compact_gfp_flags()

2019-11-10 11:27:25 +01:00

builtin-kvm.c

perf tools: Propagate get_cpuid() error

2019-11-06 13:05:42 +01:00

builtin-list.c

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builtin-lock.c

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builtin-mem.c

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builtin-probe.c

perf probe: Avoid calling freeing routine multiple times for same pointer

2019-08-16 10:12:48 +02:00

builtin-record.c

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builtin-report.c

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builtin-sched.c

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builtin-script.c

perf script: Fix invalid LBR/binary mismatch error

2019-12-13 08:52:55 +01:00

builtin-stat.c

perf stat: Reset previous counts on repeat with interval

2019-10-11 18:21:29 +02:00

builtin-timechart.c

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builtin-top.c

perf top: Fix potential NULL pointer dereference detected by the smatch tool

2019-07-31 07:27:06 +02:00

builtin-trace.c

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builtin-version.c

perf version: Fix segfault due to missing OPT_END()

2019-08-06 19:06:50 +02:00

builtin.h

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check-headers.sh

tools include: Adopt linux/bits.h

2019-04-27 09:36:40 +02:00

command-list.txt

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CREDITS

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design.txt

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Makefile

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Makefile.config

perf build: Add detection of java-11-openjdk-devel package

2019-10-11 18:21:22 +02:00

Makefile.perf

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MANIFEST

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perf-archive.sh

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perf-completion.sh

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perf-read-vdso.c

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perf-sys.h

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perf-with-kcore.sh

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perf.c

perf config: Honour $PERF_CONFIG env var to specify alternate .perfconfig

2019-10-05 13:09:40 +02:00

perf.h

perf tools: Increase MAX_NR_CPUS and MAX_CACHES

2019-07-26 09:14:12 +02:00