git: c7fcb36f5670 - main - binmiscctl: Avoid segfault with "binmiscctl add" and no extra params
Mark Johnston
markj at FreeBSD.org
Mon Feb 8 14:23:37 UTC 2021
The branch main has been updated by markj:
URL: https://cgit.FreeBSD.org/src/commit/?id=c7fcb36f5670b1d6c1f80c3c29d9d2ba374807f7
commit c7fcb36f5670b1d6c1f80c3c29d9d2ba374807f7
Author: Mark Johnston <markj at FreeBSD.org>
AuthorDate: 2021-02-08 14:20:38 +0000
Commit: Mark Johnston <markj at FreeBSD.org>
CommitDate: 2021-02-08 14:20:38 +0000
binmiscctl: Avoid segfault with "binmiscctl add" and no extra params
MFC after: 1 week
---
usr.sbin/binmiscctl/binmiscctl.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/usr.sbin/binmiscctl/binmiscctl.c b/usr.sbin/binmiscctl/binmiscctl.c
index 471f4c2c68dd..3c5e19def67b 100644
--- a/usr.sbin/binmiscctl/binmiscctl.c
+++ b/usr.sbin/binmiscctl/binmiscctl.c
@@ -284,6 +284,8 @@ add_cmd(__unused int argc, char *argv[], ximgact_binmisc_entry_t *xbe)
char *magic = NULL, *mask = NULL;
int sz;
+ if (argc == 0)
+ usage("Required argument missing\n");
if (strlen(argv[0]) > IBE_NAME_MAX)
usage("'%s' string length longer than IBE_NAME_MAX (%d)",
IBE_NAME_MAX);
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