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| author | He Zhe | 2019-08-02 10:29:52 +0200 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo | 2019-08-08 20:41:10 +0200 |
| commit | 5f5e25f1c7933a6e1673515c0b1d5acd82fea1ed (patch) | |
| tree | e4d1b719ffea2b873448060a191da46c85f34dea /tools/perf/Documentation/Makefile | |
| parent | perf ftrace: Fix failure to set cpumask when only one cpu is present (diff) | |
| download | kernel-qcow2-linux-5f5e25f1c7933a6e1673515c0b1d5acd82fea1ed.tar.gz kernel-qcow2-linux-5f5e25f1c7933a6e1673515c0b1d5acd82fea1ed.tar.xz kernel-qcow2-linux-5f5e25f1c7933a6e1673515c0b1d5acd82fea1ed.zip | |
perf cpumap: Fix writing to illegal memory in handling cpumap mask
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: 4400ac8a9a90 ("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>
Diffstat (limited to 'tools/perf/Documentation/Makefile')
0 files changed, 0 insertions, 0 deletions