diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/perf_counter.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c index 5229d1666fa5..b0b20a07f394 100644 --- a/kernel/perf_counter.c +++ b/kernel/perf_counter.c @@ -3787,6 +3787,14 @@ static void tp_perf_counter_destroy(struct perf_counter *counter) static const struct pmu *tp_perf_counter_init(struct perf_counter *counter) { + /* + * Raw tracepoint data is a severe data leak, only allow root to + * have these. + */ + if ((counter->attr.sample_type & PERF_SAMPLE_RAW) && + !capable(CAP_SYS_ADMIN)) + return ERR_PTR(-EPERM); + if (ftrace_profile_enable(counter->attr.config)) return NULL; |