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 07:15:42 +0200 |
| commit | 20a2f5951e88a8a29176a11ead3a13955a326599 (patch) | |
| tree | 6be60217a8e273ae3077064ebb7e7cf18dd09004 | |
| parent | a07dd473de2757b9326b8b55ed3afc12d5a77c94 (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>
| -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 3e5f8b3db272..19e345cf8193 100644 --- a/tools/power/x86/turbostat/turbostat.c +++ b/tools/power/x86/turbostat/turbostat.c @@ -4488,7 +4488,7 @@ 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"); |