netdev - [PATCH 1/6] test_bpf: avoid oopsing the kernel when generate_test

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1438610528-14245-2-git-send-email-nschichan@freebox.fr>
Date:	Mon,  3 Aug 2015 16:02:03 +0200
From:	Nicolas Schichan <nschichan@...ebox.fr>
To:	Daniel Borkmann <daniel@...earbox.net>,
	Alexei Starovoitov <ast@...mgrid.com>,
	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc:	Nicolas Schichan <nschichan@...ebox.fr>
Subject: [PATCH 1/6] test_bpf: avoid oopsing the kernel when generate_test_data() fails.

Signed-off-by: Nicolas Schichan <nschichan@...ebox.fr>
Acked-by: Alexei Starovoitov <ast@...mgrid.com>
---
 lib/test_bpf.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/test_bpf.c b/lib/test_bpf.c
index 3afddf2..6843d0b 100644
--- a/lib/test_bpf.c
+++ b/lib/test_bpf.c
@@ -4672,6 +4672,11 @@ static int run_one(const struct bpf_prog *fp, struct bpf_test *test)
 			break;
 
 		data = generate_test_data(test, i);
+		if (!data && !(test->aux & FLAG_NO_DATA)) {
+			pr_cont("data generation failed ");
+			err_cnt++;
+			break;
+		}
 		ret = __run_one(fp, data, runs, &duration);
 		release_test_data(test, data);
 
-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html