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-rw-r--r--overlay/gpu-perf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/overlay/gpu-perf.c b/overlay/gpu-perf.c
index 5629f826..7addd78d 100644
--- a/overlay/gpu-perf.c
+++ b/overlay/gpu-perf.c
@@ -494,6 +494,7 @@ int gpu_perf_update(struct gpu_perf *gp)
const struct perf_event_header *header;
header = (const struct perf_event_header *)(data + (tail & mask));
+ assert(header->size > 0);
if (header->size > head - tail)
break;