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| author | Leo Yan | 2019-07-02 12:34:11 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-07-31 07:27:06 +0200 |
| commit | 995527db41f6d9cdaf35eaf606c01a329566ec2b (patch) | |
| tree | 531ad9be8922c3c19a1da0e3c4eac8d6821cbef3 /tools/perf | |
| parent | perf test mmap-thread-lookup: Initialize variable to suppress memory sanitize... (diff) | |
| download | kernel-qcow2-linux-995527db41f6d9cdaf35eaf606c01a329566ec2b.tar.gz kernel-qcow2-linux-995527db41f6d9cdaf35eaf606c01a329566ec2b.tar.xz kernel-qcow2-linux-995527db41f6d9cdaf35eaf606c01a329566ec2b.zip | |
perf stat: Fix use-after-freed pointer detected by the smatch tool
[ Upstream commit c74b05030edb3b52f4208d8415b8c933bc509a29 ]
Based on the following report from Smatch, fix the use-after-freed
pointer.
tools/perf/builtin-stat.c:1353
add_default_attributes() warn: passing freed memory 'str'.
The pointer 'str' has been freed but later it is still passed into the
function parse_events_print_error(). This patch fixes this
use-after-freed issue.
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Alexios Zavras <alexios.zavras@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Changbin Du <changbin.du@intel.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Saint-Etienne <eric.saint.etienne@oracle.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Cc: Song Liu <songliubraving@fb.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Link: http://lkml.kernel.org/r/20190702103420.27540-3-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/builtin-stat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 40720150ccd8..789962565c9c 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -2497,8 +2497,8 @@ static int add_default_attributes(void) fprintf(stderr, "Cannot set up top down events %s: %d\n", str, err); - free(str); parse_events_print_error(&errinfo, str); + free(str); return -1; } } else { |