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Date: Fri, 14 Jun 2024 08:50:20 -0700
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Subject: [syzbot] [wpan?] WARNING in lowpan_xmit
From: syzbot <syzbot+ba0ca9eb9e8da84dadeb@syzkaller.appspotmail.com>
To: alex.aring@gmail.com, davem@davemloft.net, edumazet@google.com, 
	kuba@kernel.org, linux-kernel@vger.kernel.org, linux-wpan@vger.kernel.org, 
	miquel.raynal@bootlin.com, netdev@vger.kernel.org, pabeni@redhat.com, 
	stefan@datenfreihafen.org, syzkaller-bugs@googlegroups.com
Content-Type: text/plain; charset="UTF-8"

Hello,

syzbot found the following issue on:

HEAD commit:    2ccbdf43d5e7 Merge tag 'for-linus' of git://git.kernel.org..
git tree:       upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17789a56980000
kernel config:  https://syzkaller.appspot.com/x/.config?x=b8786f381e62940f
dashboard link: https://syzkaller.appspot.com/bug?extid=ba0ca9eb9e8da84dadeb
compiler:       gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/a4edf8b28d7f/disk-2ccbdf43.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/5f9b0fd6168d/vmlinux-2ccbdf43.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a2c5f918ca4f/bzImage-2ccbdf43.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ba0ca9eb9e8da84dadeb@syzkaller.appspotmail.com

ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
------------[ cut here ]------------
WARNING: CPU: 1 PID: 1237 at include/linux/skbuff.h:3069 skb_network_header_len include/linux/skbuff.h:3069 [inline]
WARNING: CPU: 1 PID: 1237 at include/linux/skbuff.h:3069 lowpan_header net/ieee802154/6lowpan/tx.c:236 [inline]
WARNING: CPU: 1 PID: 1237 at include/linux/skbuff.h:3069 lowpan_xmit+0xe38/0x11a0 net/ieee802154/6lowpan/tx.c:282
Modules linked in:
CPU: 1 PID: 1237 Comm: aoe_tx0 Not tainted 6.10.0-rc3-syzkaller-00044-g2ccbdf43d5e7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:skb_network_header_len include/linux/skbuff.h:3069 [inline]
RIP: 0010:lowpan_header net/ieee802154/6lowpan/tx.c:236 [inline]
RIP: 0010:lowpan_xmit+0xe38/0x11a0 net/ieee802154/6lowpan/tx.c:282
Code: 85 7c fe ff ff 48 01 81 48 02 00 00 e8 91 ea 24 fe e9 59 fc ff ff e8 d7 79 f4 f6 90 0f 0b 90 e9 17 f6 ff ff e8 c9 79 f4 f6 90 <0f> 0b 90 e9 fa f6 ff ff e8 bb 79 f4 f6 0f b7 8d e0 fe ff ff 48 c7
RSP: 0018:ffffc900049979c0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff888022284cb0 RCX: ffffffff8a99627f
RDX: ffff8880232b1e00 RSI: ffffffff8a996b87 RDI: 0000000000000003
RBP: ffffc90004997b60 R08: 0000000000000003 R09: 000000000000ffff
R10: 000000000000ffff R11: 0000000000000000 R12: ffff88807cecf836
R13: 000000000000ffff R14: ffffc90004997a50 R15: ffff88807cecf780
FS:  0000000000000000(0000) GS:ffff8880b9300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd216ae56c6 CR3: 0000000061aee000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __netdev_start_xmit include/linux/netdevice.h:4882 [inline]
 netdev_start_xmit include/linux/netdevice.h:4896 [inline]
 xmit_one net/core/dev.c:3578 [inline]
 dev_hard_start_xmit+0x143/0x790 net/core/dev.c:3594
 __dev_queue_xmit+0x7ba/0x4130 net/core/dev.c:4393
 dev_queue_xmit include/linux/netdevice.h:3095 [inline]
 tx+0xcc/0x190 drivers/block/aoe/aoenet.c:62
 kthread+0x1e7/0x3c0 drivers/block/aoe/aoecmd.c:1229
 kthread+0x2c1/0x3a0 kernel/kthread.c:389
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>


---
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