[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <tencent_0974B3778B662A3DDD36E0973636FE4B8609@qq.com>
Date: Tue, 28 May 2024 10:14:54 +0800
From: Edward Adam Davis <eadavis@...com>
To: syzbot+71bfed2b2bcea46c98f2@...kaller.appspotmail.com
Cc: linux-kernel@...r.kernel.org,
syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [nfc?] [net?] KMSAN: uninit-value in nci_ntf_packet (2)
please test uv in nci_ntf_packet
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 614da38e2f7a
diff --git a/drivers/nfc/virtual_ncidev.c b/drivers/nfc/virtual_ncidev.c
index 590b038e449e..6b89d596ba9a 100644
--- a/drivers/nfc/virtual_ncidev.c
+++ b/drivers/nfc/virtual_ncidev.c
@@ -125,6 +125,10 @@ static ssize_t virtual_ncidev_write(struct file *file,
kfree_skb(skb);
return -EFAULT;
}
+ if (strnlen(skb->data, count) != count) {
+ kfree_skb(skb);
+ return -EINVAL;
+ }
nci_recv_frame(vdev->ndev, skb);
return count;
Powered by blists - more mailing lists