6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: John Fastabend <john.fastabend@xxxxxxxxx>
[ Upstream commit 034ea1305e659ddae44c19ba8449166fec318e2d ]
syzbot found an error with how splice() is handled with a msg greater
than 32. This was fixed in previous patch, but lets add a test for
it to ensure it continues to work.
Signed-off-by: John Fastabend <john.fastabend@xxxxxxxxx>
Reviewed-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
tools/testing/selftests/net/tls.c | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index ad993ab3ac181..bc36c91c4480f 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -707,6 +707,20 @@ TEST_F(tls, splice_from_pipe)
EXPECT_EQ(memcmp(mem_send, mem_recv, send_len), 0);
}
+TEST_F(tls, splice_more)
+{
+ unsigned int f = SPLICE_F_NONBLOCK | SPLICE_F_MORE | SPLICE_F_GIFT;
+ int send_len = TLS_PAYLOAD_MAX_LEN;
+ char mem_send[TLS_PAYLOAD_MAX_LEN];
+ int i, send_pipe = 1;
+ int p[2];
+
+ ASSERT_GE(pipe(p), 0);
+ EXPECT_GE(write(p[1], mem_send, send_len), 0);
+ for (i = 0; i < 32; i++)
+ EXPECT_EQ(splice(p[0], NULL, self->fd, NULL, send_pipe, f), 1);
+}
+
TEST_F(tls, splice_from_pipe2)
{
int send_len = 16000;
--
2.43.0
