linux-kernel - Re: [syzbot] [usb?] WARNING in usbnet_start_xmit/usb_submit

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Message-ID: <0000000000000d41d2061623ebed@google.com>
Date: Mon, 15 Apr 2024 08:03:03 -0700
From: syzbot <syzbot+d693c07c6f647e0388d3@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, n.zhandarovich@...tech.ru, 
	syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [usb?] WARNING in usbnet_start_xmit/usb_submit_urb (2)

Hello,

syzbot has tested the proposed patch but the reproducer is still triggering an issue:
WARNING in usbnet_start_xmit/usb_submit_urb

------------[ cut here ]------------
usb 2-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 0 PID: 726 at drivers/usb/core/urb.c:503 usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503
Modules linked in:
CPU: 0 PID: 726 Comm: kworker/0:2 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
Workqueue: mld mld_ifc_work
RIP: 0010:usb_submit_urb+0xe4b/0x1730 drivers/usb/core/urb.c:503
Code: 84 3c 02 00 00 e8 35 48 30 fd 4c 89 ef e8 1d 24 01 ff 45 89 e0 89 e9 4c 89 f2 48 89 c6 48 c7 c7 c0 49 30 87 e8 46 b1 f6 fc 90 <0f> 0b 90 90 e9 e9 f8 ff ff e8 07 48 30 fd 49 81 c4 b8 05 00 00 e9
RSP: 0000:ffffc90001bef2e0 EFLAGS: 00010082
RAX: 0000000000000000 RBX: ffff8881026a1e00 RCX: ffffffff8118b029
RDX: ffff88810b350000 RSI: ffffffff8118b036 RDI: 0000000000000001
RBP: 0000000000000003 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000000000c R12: 0000000000000001
R13: ffff888101f760a8 R14: ffff888105ee9040 R15: ffff8881026a1e7c
FS:  0000000000000000(0000) GS:ffff8881f6400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f13260e9870 CR3: 000000010dbd0000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 usbnet_start_xmit+0x696/0x2440 drivers/net/usb/usbnet.c:1453
 __netdev_start_xmit include/linux/netdevice.h:4903 [inline]
 netdev_start_xmit include/linux/netdevice.h:4917 [inline]
 xmit_one net/core/dev.c:3531 [inline]
 dev_hard_start_xmit+0x143/0x720 net/core/dev.c:3547
 sch_direct_xmit+0x18e/0x840 net/sched/sch_generic.c:343
 __dev_xmit_skb net/core/dev.c:3760 [inline]
 __dev_queue_xmit+0x12c5/0x3ef0 net/core/dev.c:4301
 dev_queue_xmit include/linux/netdevice.h:3091 [inline]
 neigh_resolve_output net/core/neighbour.c:1563 [inline]
 neigh_resolve_output+0x5ba/0x950 net/core/neighbour.c:1543
 neigh_output include/net/neighbour.h:542 [inline]
 ip6_finish_output2+0xad9/0x2300 net/ipv6/ip6_output.c:137
 __ip6_finish_output+0x3d8/0xf10 net/ipv6/ip6_output.c:211
 ip6_finish_output net/ipv6/ip6_output.c:222 [inline]
 NF_HOOK_COND include/linux/netfilter.h:303 [inline]
 ip6_output+0x23a/0x8c0 net/ipv6/ip6_output.c:243
 dst_output include/net/dst.h:450 [inline]
 NF_HOOK.constprop.0+0x118/0x8b0 include/linux/netfilter.h:314
 mld_sendpack+0x6e6/0xd20 net/ipv6/mcast.c:1818
 mld_send_cr net/ipv6/mcast.c:2119 [inline]
 mld_ifc_work+0x756/0xce0 net/ipv6/mcast.c:2650
 process_one_work+0x9a9/0x1a60 kernel/workqueue.c:3254
 process_scheduled_works kernel/workqueue.c:3335 [inline]
 worker_thread+0x6c8/0xf70 kernel/workqueue.c:3416
 kthread+0x2c1/0x3a0 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:243
 </TASK>


Tested on:

commit:         fe46a7dd Merge tag 'sound-6.9-rc1' of git://git.kernel..
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=15b90f43180000
kernel config:  https://syzkaller.appspot.com/x/.config?x=811ce8e010ac6afc
dashboard link: https://syzkaller.appspot.com/bug?extid=d693c07c6f647e0388d3
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Note: no patches were applied.