------------[ cut here ]------------ WARNING: CPU: 1 PID: 46 at net/ipv4/route.c:1241 ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1241 Modules linked in: CPU: 1 UID: 0 PID: 46 Comm: kworker/1:1 Not tainted 6.10.0-syzkaller-12084-g28bbe4ea686a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024 Workqueue: usb_hub_wq hub_event RIP: 0010:ip_rt_bug+0x2c/0x110 net/ipv4/route.c:1241 Code: 1e fa 41 57 41 56 41 55 41 54 53 48 89 d3 e8 9b 75 a7 f7 66 90 e8 94 75 a7 f7 31 ff 48 89 de ba 02 00 00 00 e8 45 ad 6b ff 90 <0f> 0b 90 31 c0 5b 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc f3 0f 1e RSP: 0018:ffffc90000a18680 EFLAGS: 00010286 RAX: 3b2aa5674125a800 RBX: ffff88805f4a3280 RCX: ffffffff81701f3a RDX: dffffc0000000000 RSI: ffffffff8bcad5a0 RDI: ffffffff8c209f60 RBP: 0000000000000001 R08: ffffffff9300289f R09: 1ffffffff2600513 R10: dffffc0000000000 R11: fffffbfff2600514 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888022540000 R15: ffff88801638a080 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3061fffc CR3: 00000000664ae000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ip_local_out net/ipv4/ip_output.c:129 [inline] ip_send_skb net/ipv4/ip_output.c:1495 [inline] ip_push_pending_frames+0xbf/0x150 net/ipv4/ip_output.c:1515 __icmp_send+0xf89/0x14e0 net/ipv4/icmp.c:777 ipv4_send_dest_unreach net/ipv4/route.c:1221 [inline] ipv4_link_failure+0x62f/0xa10 net/ipv4/route.c:1228 dst_link_failure include/net/dst.h:429 [inline] arp_error_report+0x114/0x160 net/ipv4/arp.c:296 neigh_invalidate+0x244/0x470 net/core/neighbour.c:1061 neigh_timer_handler+0x8a5/0xfd0 net/core/neighbour.c:1148 call_timer_fn+0x18e/0x650 kernel/time/timer.c:1792 expire_timers kernel/time/timer.c:1843 [inline] __run_timers kernel/time/timer.c:2417 [inline] __run_timer_base+0x66a/0x8e0 kernel/time/timer.c:2428 run_timer_base kernel/time/timer.c:2437 [inline] run_timer_softirq+0xb7/0x170 kernel/time/timer.c:2447 handle_softirqs+0x2c4/0x970 kernel/softirq.c:554 __do_softirq kernel/softirq.c:588 [inline] invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637 irq_exit_rcu+0x9/0x30 kernel/softirq.c:649 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:console_flush_all+0xaad/0xfd0 kernel/printk/printk.c:3055 Code: ff ff e8 f6 dd 1f 00 90 0f 0b 90 e9 d8 f8 ff ff e8 e8 dd 1f 00 e8 c3 3e 1d 0a 4d 85 f6 74 b6 e8 d9 dd 1f 00 fb 48 8b 44 24 70 <42> 0f b6 04 38 84 c0 48 8b 7c 24 30 0f 85 22 02 00 00 0f b6 1f 31 RSP: 0018:ffffc90000b66540 EFLAGS: 00000287 RAX: 1ffff9200016ccf4 RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc90014666000 RSI: 000000000003d40b RDI: 000000000003d40c RBP: ffffc90000b666f0 R08: ffffffff8173a544 R09: 1ffffffff2600500 R10: dffffc0000000000 R11: fffffbfff2600501 R12: ffffffff8eb30bd8 R13: ffffffff8eb30b80 R14: 0000000000000200 R15: dffffc0000000000 console_unlock+0x13b/0x4d0 kernel/printk/printk.c:3118 vprintk_emit+0x5a6/0x770 kernel/printk/printk.c:2348 dev_vprintk_emit+0x2ae/0x330 drivers/base/core.c:4909 dev_printk_emit+0xdd/0x120 drivers/base/core.c:4920 _dev_info+0x122/0x170 drivers/base/core.c:4978 dvb_usbv2_probe+0x6aa/0x3dc0 drivers/media/usb/dvb-usb-v2/dvb_usb_core.c:978 usb_probe_interface+0x645/0xbb0 drivers/usb/core/driver.c:399 really_probe+0x2b8/0xad0 drivers/base/dd.c:656 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798 driver_probe_device+0x50/0x430 drivers/base/dd.c:828 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:956 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:457 __device_attach+0x333/0x520 drivers/base/dd.c:1028 bus_probe_device+0x189/0x260 drivers/base/bus.c:532 device_add+0x856/0xbf0 drivers/base/core.c:3679 usb_set_configuration+0x1976/0x1fb0 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0x88/0x140 drivers/usb/core/generic.c:254 usb_probe_device+0x1b8/0x380 drivers/usb/core/driver.c:294 really_probe+0x2b8/0xad0 drivers/base/dd.c:656 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:798 driver_probe_device+0x50/0x430 drivers/base/dd.c:828 __device_attach_driver+0x2d6/0x530 drivers/base/dd.c:956 bus_for_each_drv+0x24e/0x2e0 drivers/base/bus.c:457 __device_attach+0x333/0x520 drivers/base/dd.c:1028 bus_probe_device+0x189/0x260 drivers/base/bus.c:532 device_add+0x856/0xbf0 drivers/base/core.c:3679 usb_new_device+0x104a/0x19a0 drivers/usb/core/hub.c:2651 hub_port_connect drivers/usb/core/hub.c:5521 [inline] hub_port_connect_change drivers/usb/core/hub.c:5661 [inline] port_event drivers/usb/core/hub.c:5821 [inline] hub_event+0x2d6a/0x5150 drivers/usb/core/hub.c:5903 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0xa2c/0x1830 kernel/workqueue.c:3312 worker_thread+0x86d/0xd40 kernel/workqueue.c:3390 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: e8 f6 dd 1f 00 call 0x1fddfb 5: 90 nop 6: 0f 0b ud2 8: 90 nop 9: e9 d8 f8 ff ff jmp 0xfffff8e6 e: e8 e8 dd 1f 00 call 0x1fddfb 13: e8 c3 3e 1d 0a call 0xa1d3edb 18: 4d 85 f6 test %r14,%r14 1b: 74 b6 je 0xffffffd3 1d: e8 d9 dd 1f 00 call 0x1fddfb 22: fb sti 23: 48 8b 44 24 70 mov 0x70(%rsp),%rax * 28: 42 0f b6 04 38 movzbl (%rax,%r15,1),%eax <-- trapping instruction 2d: 84 c0 test %al,%al 2f: 48 8b 7c 24 30 mov 0x30(%rsp),%rdi 34: 0f 85 22 02 00 00 jne 0x25c 3a: 0f b6 1f movzbl (%rdi),%ebx 3d: 31 .byte 0x31