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| author |   Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2019-04-03 16:02:14 +0900 |
|---|---|---|
| committer |   Len Brown <len.brown@intel.com> | 2019-08-31 14:48:34 -0400 |
| commit | eeb71c950bc6eee460f2070643ce137e067b234c (patch) | |
| tree | d1f0bab9936963c4a0c138f9df39342727083288 /tools/power/x86/turbostat/turbostat.c | |
| parent | tools/power turbostat: fix file descriptor leaks (diff) | |
| download | linux-dev-eeb71c950bc6eee460f2070643ce137e067b234c.tar.xz linux-dev-eeb71c950bc6eee460f2070643ce137e067b234c.zip | |
tools/power turbostat: fix buffer overrun
turbostat could be terminated by general protection fault on some latest
hardwares which (for example) support 9 levels of C-states and show 18
"tADDED" lines. That bloats the total output and finally causes buffer
overrun. So let's extend the buffer to avoid this.
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to '')
| -rw-r--r-- | tools/power/x86/turbostat/turbostat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c index 2fb5c155289b..f8f4e1c130a6 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -5131,7 +5131,7 @@ int initialize_counters(int cpu_id) void allocate_output_buffer() { - output_buffer = calloc(1, (1 + topo.num_cpus) * 1024); + output_buffer = calloc(1, (1 + topo.num_cpus) * 2048); outp = output_buffer; if (outp == NULL) err(-1, "calloc output buffer"); |