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| author | Naoya Horiguchi <n-horiguchi@ah.jp.nec.com> | 2019-04-03 10:02:14 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-09-21 08:14:19 +0300 |
| commit | 318537ab5df99309dc35d20d61fa7d6559288e81 (patch) | |
| tree | 29c93cae54f5422a390829179464df246e7da416 /tools/power/x86 | |
| parent | 2099353f7a187ba0eb44cf955c741edfa2b5ab94 (diff) | |
| download | linux-318537ab5df99309dc35d20d61fa7d6559288e81.tar.xz | |
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/power/x86')
| -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 b4c5d96e54c1..7c2c8e74aa9a 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -3593,7 +3593,7 @@ 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"); |