From: syzbot <syzbot+427909a2e3b2f83d78cb@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Forwarded: [PATCH 1/1] media: dvb-usb-v2: ce6230: fix bug when sending usb_control_msg of size 0
Date: Wed, 22 Apr 2026 11:50:37 -0700 [thread overview]
Message-ID: <69e9187d.a00a0220.17a17.002e.GAE@google.com> (raw)
In-Reply-To: <69322f1d.a70a0220.d98e3.01e2.GAE@google.com>
For archival purposes, forwarding an incoming command email to
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***
Subject: [PATCH 1/1] media: dvb-usb-v2: ce6230: fix bug when sending usb_control_msg of size 0
Author: jakovnovak30@gmail.com
#syz test
---
drivers/media/usb/dvb-usb-v2/ce6230.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/media/usb/dvb-usb-v2/ce6230.c b/drivers/media/usb/dvb-usb-v2/ce6230.c
index 7ebaf3ee4491..dd3aa45b56a3 100644
--- a/drivers/media/usb/dvb-usb-v2/ce6230.c
+++ b/drivers/media/usb/dvb-usb-v2/ce6230.c
@@ -23,6 +23,13 @@ static int ce6230_ctrl_msg(struct dvb_usb_device *d, struct usb_req *req)
value = req->value;
index = req->index;
+ if (!req->data_len) {
+ dev_err(&d->udev->dev,
+ "%s: cannot send crtl_msg of size 0",
+ KBUILD_MODNAME);
+ return -ENOBUFS;
+ }
+
switch (req->cmd) {
case I2C_READ:
case DEMOD_READ:
--
2.53.0
prev parent reply other threads:[~2026-04-22 18:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-05 1:02 [syzbot] [usb?] WARNING in ADDR_ctrl_msg/usb_submit_urb syzbot
2026-01-04 19:19 ` syzbot
2026-04-22 18:50 ` syzbot [this message]
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