diff options
| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2019-04-03 16:02:14 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-21 07:12:52 +0200 |
| commit | a96b6b408c7e8b7e741e7820f76a6e8215d417a6 (patch) | |
| tree | 847ab87ec78dcd53bfe7d928ba421dc9538a63dc /tools | |
| parent | 015c9eff13ac9c2234134b47355b5af52c535cd4 (diff) | |
tools/power turbostat: fix buffer overrun
[ Upstream commit eeb71c950bc6eee460f2070643ce137e067b234c ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
| -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 532e7bf06868..58cf16188722 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -3014,7 +3014,7 @@ 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"); |