divide error: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1327 Comm: kworker/1:6 Not tainted 5.4.125-syzkaller-00029-g5970ec26e0c8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
RIP: 0010:genelink_tx_fixup+0x435/0x5f0 drivers/net/usb/gl620a.c:172
Code: 03 42 8a 04 20 84 c0 0f 85 e9 00 00 00 8b 2b 49 83 ed 80 4c 89 e8 48 c1 e8 03 42 8a 04 20 84 c0 0f 85 ed 00 00 00 89 e8 31 d2 <41> f7 75 00 89 d3 31 ff 89 d6 e8 9c 20 a1 fe 85 db 74 07 e8 f3 1c
RSP: 0018:ffff8881f6f09190 EFLAGS: 00010246
RAX: 0000000000000062 RBX: ffff8881ede49930 RCX: ffff8881e4068fc0
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881ede49930
RBP: 0000000000000062 R08: ffffffff82c43537 R09: 0000000000000003
R10: ffffed103ede1265 R11: 0000000000000004 R12: dffffc0000000000
R13: ffff8881e4da29c0 R14: 000000000000005a R15: ffff8881ede498c0
FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5fb27da058 CR3: 00000001b2076000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
usbnet_start_xmit+0x107/0x1a10 drivers/net/usb/usbnet.c:1363
__netdev_start_xmit include/linux/netdevice.h:4506 [inline]
netdev_start_xmit include/linux/netdevice.h:4520 [inline]
xmit_one+0xfa/0x470 net/core/dev.c:3203
dev_hard_start_xmit+0xac/0x1b0 net/core/dev.c:3219
sch_direct_xmit+0x28c/0x9e0 net/sched/sch_generic.c:336
qdisc_restart net/sched/sch_generic.c:401 [inline]
__qdisc_run+0x245/0x420 net/sched/sch_generic.c:409
qdisc_run include/net/pkt_sched.h:121 [inline]
__dev_xmit_skb net/core/dev.c:3395 [inline]
__dev_queue_xmit+0xd2c/0x2e50 net/core/dev.c:3748
neigh_output include/net/neighbour.h:519 [inline]
ip6_finish_output2+0xed9/0x15c0 net/ipv6/ip6_output.c:116
NF_HOOK_COND include/linux/netfilter.h:297 [inline]
ip6_output+0x1c1/0x420 net/ipv6/ip6_output.c:214
dst_output include/net/dst.h:444 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
mld_sendpack+0x606/0xb30 net/ipv6/mcast.c:1679
mld_send_cr net/ipv6/mcast.c:1975 [inline]
mld_ifc_timer_expire+0x804/0xb30 net/ipv6/mcast.c:2474
call_timer_fn+0x30/0x330 kernel/time/timer.c:1416
expire_timers+0x214/0x410 kernel/time/timer.c:1461
__run_timers+0x603/0x740 kernel/time/timer.c:1785
run_timer_softirq+0x46/0x80 kernel/time/timer.c:1798
__do_softirq+0x23e/0x615 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:373 [inline]
irq_exit+0x195/0x1c0 kernel/softirq.c:413
exiting_irq arch/x86/include/asm/apic.h:538 [inline]
smp_apic_timer_interrupt+0x113/0x420 arch/x86/kernel/apic/apic.c:1150
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:831
RIP: 0010:native_restore_fl arch/x86/include/asm/irqflags.h:41 [inline]
RIP: 0010:console_unlock+0xaaf/0xe30 arch/x86/include/asm/irqflags.h:84
Code: 80 9b e6 86 e8 92 d7 f8 02 84 db 48 8b 5c 24 28 0f 85 4d 03 00 00 e8 00 b8 16 00 e8 cb 60 00 00 48 89 5c 24 70 ff 74 24 70 9d 5c f7 ff ff e8 e7 b7 16 00 48 c7 05 ec f6 97 05 00 00 00 00 e9
RSP: 0018:ffff8881f36cef80 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: ffffffff814efcc5 RBX: 0000000000000246 RCX: 0000000000040000
RDX: ffffc9000d5d6000 RSI: 0000000000017a76 RDI: 0000000000017a77
RBP: ffff8881f36cf130 R08: dffffc0000000000 R09: 0000000000000003
R10: ffffed103e6d9de1 R11: 0000000000000004 R12: ffffffff860cb4a0
R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000
vprintk_emit+0x1e8/0x4c0 kernel/printk/printk.c:2024
dev_vprintk_emit+0x4af/0x544 drivers/base/core.c:4024
dev_printk_emit+0xd9/0x118 drivers/base/core.c:4035
__netdev_printk+0x339/0x419 net/core/dev.c:10064
netdev_info+0x11e/0x16e net/core/dev.c:10119
usbnet_disconnect+0x31b/0x340 drivers/net/usb/usbnet.c:1605
usb_unbind_interface+0x1f8/0x860 drivers/usb/core/driver.c:423
__device_release_driver drivers/base/dd.c:1165 [inline]
device_release_driver_internal+0x52c/0x7d0 drivers/base/dd.c:1196
bus_remove_device+0x2e7/0x350 drivers/base/bus.c:532
device_del+0x684/0x1020 drivers/base/core.c:3085
usb_disable_device+0x356/0x640 drivers/usb/core/message.c:1271
usb_disconnect+0x346/0x880 drivers/usb/core/hub.c:2217
hub_port_connect drivers/usb/core/hub.c:4974 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5238 [inline]
port_event drivers/usb/core/hub.c:5384 [inline]
hub_event+0x1c1e/0x4d70 drivers/usb/core/hub.c:5466
process_one_work+0x679/0x1030 kernel/workqueue.c:2277
worker_thread+0xa6f/0x1400 kernel/workqueue.c:2423
kthread+0x30f/0x330 kernel/kthread.c:268
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352
Modules linked in:
---[ end trace 5516446b4ebfd9e1 ]---
RIP: 0010:genelink_tx_fixup+0x435/0x5f0 drivers/net/usb/gl620a.c:172
Code: 03 42 8a 04 20 84 c0 0f 85 e9 00 00 00 8b 2b 49 83 ed 80 4c 89 e8 48 c1 e8 03 42 8a 04 20 84 c0 0f 85 ed 00 00 00 89 e8 31 d2 <41> f7 75 00 89 d3 31 ff 89 d6 e8 9c 20 a1 fe 85 db 74 07 e8 f3 1c
RSP: 0018:ffff8881f6f09190 EFLAGS: 00010246
RAX: 0000000000000062 RBX: ffff8881ede49930 RCX: ffff8881e4068fc0
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff8881ede49930
RBP: 0000000000000062 R08: ffffffff82c43537 R09: 0000000000000003
R10: ffffed103ede1265 R11: 0000000000000004 R12: dffffc0000000000
R13: ffff8881e4da29c0 R14: 000000000000005a R15: ffff8881ede498c0
FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5fb27da058 CR3: 00000001b2076000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 03 42 8a add -0x76(%rdx),%eax
3: 04 20 add $0x20,%al
5: 84 c0 test %al,%al
7: 0f 85 e9 00 00 00 jne 0xf6
d: 8b 2b mov (%rbx),%ebp
f: 49 83 ed 80 sub $0xffffffffffffff80,%r13
13: 4c 89 e8 mov %r13,%rax
16: 48 c1 e8 03 shr $0x3,%rax
1a: 42 8a 04 20 mov (%rax,%r12,1),%al
1e: 84 c0 test %al,%al
20: 0f 85 ed 00 00 00 jne 0x113
26: 89 e8 mov %ebp,%eax
28: 31 d2 xor %edx,%edx
* 2a: 41 f7 75 00 divl 0x0(%r13) <-- trapping instruction
2e: 89 d3 mov %edx,%ebx
30: 31 ff xor %edi,%edi
32: 89 d6 mov %edx,%esi
34: e8 9c 20 a1 fe callq 0xfea120d5
39: 85 db test %ebx,%ebx
3b: 74 07 je 0x44
3d: e8 .byte 0xe8
3e: f3 repz
3f: 1c .byte 0x1c