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-rw-r--r--src/libsystemd-terminal/grdev-drm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libsystemd-terminal/grdev-drm.c b/src/libsystemd-terminal/grdev-drm.c
index 5c65c096de..5393ebf988 100644
--- a/src/libsystemd-terminal/grdev-drm.c
+++ b/src/libsystemd-terminal/grdev-drm.c
@@ -2223,7 +2223,7 @@ static int grdrm_card_io_fn(sd_event_source *s, int fd, uint32_t revents, void *
for (i = 0; i < l; i += event->length) {
event = (void*)&buf[i];
- if (i + event->length > l) {
+ if (i + (ssize_t)sizeof(*event) > l || i + (ssize_t)event->length > l) {
log_debug("grdrm: %s/%s: truncated event", card->base.session->name, card->base.name);
break;
}