diff options
| -rw-r--r-- | tools/perf/util/header.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index a3b7b796639b..a18f216f77c2 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2795,6 +2795,9 @@ process_event_desc(struct feat_fd *ff, void *data __maybe_unused) return 0; } +// Some reasonable arbitrary max for the number of command line arguments +#define MAX_CMDLINE_NR 32768 + static int process_cmdline(struct feat_fd *ff, void *data __maybe_unused) { struct perf_env *env = &ff->ph->env; @@ -2804,6 +2807,9 @@ static int process_cmdline(struct feat_fd *ff, void *data __maybe_unused) if (do_read_u32(ff, &nr)) return -1; + if (nr > MAX_CMDLINE_NR) + return -1; + env->nr_cmdline = nr; cmdline = zalloc(ff->size + nr + 1); |