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-rw-r--r--qga/commands-posix.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/qga/commands-posix.c b/qga/commands-posix.c
index 594d21ef3e..9284e71666 100644
--- a/qga/commands-posix.c
+++ b/qga/commands-posix.c
@@ -458,7 +458,7 @@ struct GuestFileRead *qmp_guest_file_read(int64_t handle, bool has_count,
if (!has_count) {
count = QGA_READ_COUNT_DEFAULT;
- } else if (count < 0) {
+ } else if (count < 0 || count >= UINT32_MAX) {
error_setg(errp, "value '%" PRId64 "' is invalid for argument count",
count);
return NULL;