watchdog: BUG: soft lockup - CPU#0 stuck for 143s! [syz-executor:8614] Modules linked in: CPU: 0 PID: 8614 Comm: syz-executor Not tainted 5.15.150-syzkaller-00330-g9044d25b8ff5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:queued_write_lock_slowpath+0x154/0x440 kernel/locking/qrwlock.c:78 Code: 92 6b 5d 00 f0 41 81 0f 00 01 00 00 48 8b 5c 24 08 43 0f b6 04 2e 84 c0 0f 85 94 00 00 00 41 8b 07 3d 00 01 00 00 74 27 f3 90 <43> 0f b6 04 2e 84 c0 74 eb 44 89 f9 80 e1 07 80 c1 03 38 c1 7c de RSP: 0018:ffffc90000ca6ce0 EFLAGS: 00000206 RAX: 00000000000001ff RBX: 1ffff92000194da6 RCX: ffffffff815507be RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffffff8734bda0 RBP: ffffc90000ca6d90 R08: dffffc0000000000 R09: fffffbfff0e697b5 R10: 0000000000000000 R11: dffffc0000000001 R12: ffffc90000ca6d30 R13: dffffc0000000000 R14: 1ffffffff0e697b4 R15: ffffffff8734bda0 FS: 0000555556215500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f604a18d6b8 CR3: 0000000172b89000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: queued_write_lock include/asm-generic/qrwlock.h:97 [inline] __raw_write_lock include/linux/rwlock_api_smp.h:211 [inline] _raw_write_lock+0x10a/0x170 kernel/locking/spinlock.c:300 register_netdevice+0xdf7/0x1390 net/core/dev.c:10362 xfrmi_create net/xfrm/xfrm_interface_core.c:156 [inline] xfrmi_newlink+0x32c/0x440 net/xfrm/xfrm_interface_core.c:662 __rtnl_newlink net/core/rtnetlink.c:3501 [inline] rtnl_newlink+0x1495/0x2050 net/core/rtnetlink.c:3549 rtnetlink_rcv_msg+0x951/0xc40 net/core/rtnetlink.c:5630 netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2505 rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:5648 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x8df/0xac0 net/netlink/af_netlink.c:1356 netlink_sendmsg+0xa0a/0xd20 net/netlink/af_netlink.c:1924 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] __sys_sendto+0x564/0x720 net/socket.c:2058 __do_sys_sendto net/socket.c:2070 [inline] __se_sys_sendto net/socket.c:2066 [inline] __x64_sys_sendto+0xe5/0x100 net/socket.c:2066 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f1de2660913 Code: 64 89 02 48 c7 c0 ff ff ff ff eb b7 66 2e 0f 1f 84 00 00 00 00 00 90 80 3d 31 dc 15 00 00 41 89 ca 74 14 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 75 c3 0f 1f 40 00 55 48 83 ec 30 44 89 4c 24 RSP: 002b:00007ffef7cc1ea8 EFLAGS: 00000202 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f1de331d620 RCX: 00007f1de2660913 RDX: 0000000000000044 RSI: 00007f1de331d670 RDI: 0000000000000003 RBP: 0000000000000001 R08: 00007ffef7cc1ec4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f1de331d670 R15: 0000000000000000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 3546 Comm: syz.0.1046 Not tainted 5.15.150-syzkaller-00330-g9044d25b8ff5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024 RIP: 0010:kasan_check_range+0x0/0x2a0 mm/kasan/generic.c:188 Code: 48 c1 ee 03 48 01 c6 48 89 c7 e8 bb 38 11 03 31 c0 5d c3 0f 0b eb 02 0f 0b b8 ea ff ff ff 5d c3 cc cc cc cc cc cc cc cc cc cc <55> 48 89 e5 41 57 41 56 41 55 41 54 53 b0 01 48 85 f6 0f 84 a4 01 RSP: 0018:ffffc900001d01c8 EFLAGS: 00000086 RAX: 1ffff1103ee265e6 RBX: 0000000000000000 RCX: ffffffff817e1518 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffff8881f7132f30 RBP: ffffc900001d01d0 R08: ffffffff817e14d9 R09: ffffffff87292048 R10: ffffffff87292058 R11: ffffffff87292050 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff8881f7132f30 R15: 0000000000000046 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2702d9 CR3: 0000000132851000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: instrument_atomic_write include/linux/instrumented.h:86 [inline] llist_del_all include/linux/llist.h:237 [inline] irq_work_run_list+0x108/0x290 kernel/irq_work.c:175 irq_work_run+0x69/0xf0 kernel/irq_work.c:186 __sysvec_irq_work+0x63/0x1b0 arch/x86/kernel/irq_work.c:22 sysvec_irq_work+0x41/0xb0 arch/x86/kernel/irq_work.c:17 asm_sysvec_irq_work+0x1b/0x20 arch/x86/include/asm/idtentry.h:664 RIP: 0010:neigh_ha_snapshot include/net/neighbour.h:560 [inline] RIP: 0010:neigh_fill_info+0x4d1/0xd30 net/core/neighbour.c:2465 Code: 74 1e e8 f2 c9 85 fd eb e4 44 89 e9 80 e1 07 80 c1 03 38 c1 7c e2 4c 89 ef e8 6b 03 c8 fd eb d8 e8 d4 c9 85 fd 43 0f b6 04 26 <84> c0 75 54 48 8b 44 24 20 0f b6 10 48 8d bc 24 c0 00 00 00 48 8b RSP: 0018:ffffc900001d03c0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 1ffff1103c2a0413 RCX: ffff88810f0b4f00 RDX: 0000000000000703 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900001d0508 R08: ffffffff83ea6d85 R09: ffffc900001d0480 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881e150209c R14: 1ffff11021db6449 R15: 0000000000000000 __neigh_notify+0x9d/0x120 net/core/neighbour.c:3379 neigh_cleanup_and_release+0x2c/0x1b0 net/core/neighbour.c:101 neigh_del net/core/neighbour.c:197 [inline] neigh_remove_one+0x3a6/0x430 net/core/neighbour.c:218 neigh_forced_gc net/core/neighbour.c:251 [inline] neigh_alloc net/core/neighbour.c:429 [inline] ___neigh_create+0x474/0x1bd0 net/core/neighbour.c:591 __neigh_create+0x32/0x40 net/core/neighbour.c:679 ip6_finish_output2+0x9ee/0x16e0 net/ipv6/ip6_output.c:123 __ip6_finish_output+0x60f/0x7c0 net/ipv6/ip6_output.c:197 ip6_finish_output+0x31/0x210 net/ipv6/ip6_output.c:207 NF_HOOK_COND include/linux/netfilter.h:294 [inline] ip6_output+0x1f7/0x4d0 net/ipv6/ip6_output.c:230 dst_output include/net/dst.h:444 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] ndisc_send_skb+0x73e/0xc90 net/ipv6/ndisc.c:509 ndisc_send_rs+0x532/0x6a0 net/ipv6/ndisc.c:703 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3977 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1427 expire_timers kernel/time/timer.c:1472 [inline] __run_timers+0x72a/0xa10 kernel/time/timer.c:1743 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:rfc2863_policy+0x1bb/0x2b0 net/core/link_watch.c:60 Code: db 00 49 81 c7 29 02 00 00 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 0f 85 b1 00 00 00 41 0f b6 1f <48> 89 df 48 c7 c6 40 92 f1 86 e8 76 f2 82 fd 83 fb 01 74 23 83 fb RSP: 0018:ffffc90000de76e8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: dffffc0000000000 RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffffc90000de7660 RBP: ffffc90000de7718 R08: dffffc0000000000 R09: 0000000000000003 R10: fffff520001bcecc R11: dffffc0000000001 R12: 0000000000000002 R13: dffffc0000000002 R14: 1ffff11024111045 R15: ffff888120888229 linkwatch_do_dev+0x3c/0x160 net/core/link_watch.c:160 linkwatch_forget_dev+0x170/0x180 net/core/link_watch.c:238 netdev_run_todo+0x2ec/0x9f0 net/core/dev.c:10642 rtnl_unlock+0xe/0x10 net/core/rtnetlink.c:112 tun_detach drivers/net/tun.c:704 [inline] tun_chr_close+0xc4/0x140 drivers/net/tun.c:3434 __fput+0x3fe/0x910 fs/file_table.c:280 ____fput+0x15/0x20 fs/file_table.c:308 task_work_run+0x129/0x190 kernel/task_work.c:164 exit_task_work include/linux/task_work.h:32 [inline] do_exit+0xc48/0x2ca0 kernel/exit.c:878 do_group_exit+0x141/0x310 kernel/exit.c:1000 get_signal+0x7a3/0x1630 kernel/signal.c:2896 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:172 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:301 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f1af7afabd9 Code: Unable to access opcode bytes at RIP 0x7f1af7afabaf. RSP: 002b:00007f1af6d5b0f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007f1af7c89040 RCX: 00007f1af7afabd9 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f1af7c89044 RBP: 00007f1af7c89038 R08: 00007fff7bb300b0 R09: 00007f1af6d5b6c0 R10: 0000000000000004 R11: 0000000000000246 R12: 00007f1af7c89044 R13: 000000000000006e R14: 00007fff7bab0d60 R15: 00007fff7bab0e48