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-rw-r--r--src/helper/slbt_dump_machine.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/helper/slbt_dump_machine.c b/src/helper/slbt_dump_machine.c
index 1357509..3e0c65d 100644
--- a/src/helper/slbt_dump_machine.c
+++ b/src/helper/slbt_dump_machine.c
@@ -56,7 +56,7 @@ int slbt_dump_machine(
char program[PATH_MAX];
/* setup */
- if (!machine || !--buflen) {
+ if (!machine || !buflen || !--buflen) {
errno = EINVAL;
return -1;
}