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From: syzbot <syzbot+b4d960daf7a3c7c2b7b1@syzkaller.appspotmail.com>
To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Forwarded: Re: [syzbot] [kvm?] [net?] [virt?] WARNING in virtio_transport_send_pkt_info
Date: Wed, 13 Aug 2025 08:43:34 -0700	[thread overview]
Message-ID: <689cb2a6.050a0220.51d73.00bd.GAE@google.com> (raw)
In-Reply-To: <689a3d92.050a0220.7f033.00ff.GAE@google.com>

For archival purposes, forwarding an incoming command email to
linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com.

***

Subject: Re: [syzbot] [kvm?] [net?] [virt?] WARNING in virtio_transport_send_pkt_info
Author: mst@redhat.com


#syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master


diff --git a/net/core/datagram.c b/net/core/datagram.c
index 94cc4705e91d..ab890448f3a2 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -642,6 +642,7 @@ int zerocopy_fill_skb_from_iter(struct sk_buff *skb,
 			return -EFAULT;
 
 		length -= copied;
+		iov_iter_advance(from, copied);
 
 		skb->data_len += copied;
 		skb->len += copied;


  parent reply	other threads:[~2025-08-13 15:43 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-11 18:59 [syzbot] [kvm?] [net?] [virt?] WARNING in virtio_transport_send_pkt_info syzbot
2025-08-12  8:39 ` Forwarded: " syzbot
2025-08-12  9:26 ` Michael S. Tsirkin
2025-08-12  9:48   ` syzbot
2025-08-12  9:27 ` Michael S. Tsirkin
2025-08-12 10:03   ` syzbot
2025-08-12 10:15     ` Michael S. Tsirkin
2025-08-15 10:09       ` Will Deacon
2025-08-15 10:44         ` Michael S. Tsirkin
2025-08-15 12:00           ` Will Deacon
2025-08-15 15:48             ` Will Deacon
2025-08-16  0:08               ` Hillf Danton
2025-08-16  0:30                 ` syzbot
2025-08-16 10:34               ` Michael S. Tsirkin
2025-08-18 14:52                 ` Will Deacon
2025-08-13 12:41 ` Hillf Danton
2025-08-13 13:03   ` syzbot
2025-08-13 15:43 ` syzbot [this message]
2025-08-13 16:31 ` Forwarded: " syzbot

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