[ 64.037929][ T10] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 64.124772][ T10] bond0 (unregistering): Released all slaves [ 74.366616][ T25] kauditd_printk_skb: 38 callbacks suppressed [ 74.366628][ T25] audit: type=1400 audit(1672873971.422:176): avc: denied { search } for pid=5331 comm="dhcpcd-run-hook" name="/" dev="tmpfs" ino=1 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 74.397109][ T25] audit: type=1400 audit(1672873971.452:177): avc: denied { read } for pid=5332 comm="dhcpcd-run-hook" name="resolv.conf" dev="tmpfs" ino=1405 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 74.420699][ T25] audit: type=1400 audit(1672873971.452:178): avc: denied { open } for pid=5332 comm="dhcpcd-run-hook" path="/run/dhcpcd/hook-state/resolv.conf" dev="tmpfs" ino=1405 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 74.446246][ T25] audit: type=1400 audit(1672873971.452:179): avc: denied { getattr } for pid=5332 comm="dhcpcd-run-hook" path="/run/dhcpcd/hook-state/resolv.conf" dev="tmpfs" ino=1405 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 74.549359][ T25] audit: type=1400 audit(1672873971.602:180): avc: denied { write } for pid=5331 comm="dhcpcd-run-hook" name="hook-state" dev="tmpfs" ino=1404 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 74.572843][ T25] audit: type=1400 audit(1672873971.602:181): avc: denied { add_name } for pid=5331 comm="dhcpcd-run-hook" name="resolv.conf.eth1.ipv4ll" scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 74.638018][ T25] audit: type=1400 audit(1672873971.692:182): avc: denied { remove_name } for pid=5342 comm="rm" name="resolv.conf.eth1.ipv4ll" dev="tmpfs" ino=1536 scontext=system_u:system_r:dhcpc_t tcontext=system_u:object_r:tmpfs_t tclass=dir permissive=1 [ 76.453264][ T6] cfg80211: failed to load regulatory.db Warning: Permanently added '10.128.0.76' (ECDSA) to the list of known hosts. 2023/01/04 23:12:57 parsed 1 programs [ 80.503011][ T25] audit: type=1400 audit(1672873977.562:183): avc: denied { mounton } for pid=5513 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 80.528548][ T25] audit: type=1400 audit(1672873977.562:184): avc: denied { mount } for pid=5513 comm="syz-executor" name="/" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=filesystem permissive=1 2023/01/04 23:12:57 executed programs: 0 [ 80.774282][ T25] audit: type=1400 audit(1672873977.832:185): avc: denied { mounton } for pid=5517 comm="syz-executor.0" path="/syzcgroup/unified" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=dir permissive=1 [ 80.804250][ T25] audit: type=1400 audit(1672873977.862:186): avc: denied { create } for pid=5517 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1 [ 81.815637][ T25] audit: type=1400 audit(1672873978.872:187): avc: denied { ioctl } for pid=5517 comm="syz-executor.0" path="socket:[30208]" dev="sockfs" ino=30208 ioctlcmd=0x48c9 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bluetooth_socket permissive=1 [ 81.819507][ T4375] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 81.849378][ T4375] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 81.857289][ T4375] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 81.865868][ T4375] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 81.873809][ T4375] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 81.882850][ T4375] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 81.901150][ T25] audit: type=1400 audit(1672873978.952:188): avc: denied { mounton } for pid=5517 comm="syz-executor.0" path="/" dev="sda1" ino=2 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:root_t tclass=dir permissive=1 [ 81.995203][ T5517] chnl_net:caif_netlink_parms(): no params data found [ 82.035778][ T5517] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.043235][ T5517] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.050979][ T5517] device bridge_slave_0 entered promiscuous mode [ 82.059554][ T5517] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.066996][ T5517] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.074944][ T5517] device bridge_slave_1 entered promiscuous mode [ 82.095881][ T5517] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.107192][ T5517] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.129544][ T5517] team0: Port device team_slave_0 added [ 82.138076][ T5517] team0: Port device team_slave_1 added [ 82.156801][ T5517] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.164675][ T5517] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 82.192489][ T5517] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 82.204469][ T5517] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 82.211847][ T5517] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 82.239222][ T5517] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 82.266439][ T5517] device hsr_slave_0 entered promiscuous mode [ 82.273256][ T5517] device hsr_slave_1 entered promiscuous mode [ 82.329501][ T25] audit: type=1400 audit(1672873979.382:189): avc: denied { create } for pid=5517 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 82.345111][ T5517] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.357557][ T5517] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.364896][ T25] audit: type=1400 audit(1672873979.392:190): avc: denied { write } for pid=5517 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 82.365018][ T5517] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.385893][ T25] audit: type=1400 audit(1672873979.392:191): avc: denied { read } for pid=5517 comm="syz-executor.0" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 82.392673][ T5517] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.436731][ T5517] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.449947][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.458471][ T6] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.467264][ T6] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.475860][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 82.489038][ T5517] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.499346][ T2488] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.508179][ T2488] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.515300][ T2488] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.532726][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.542228][ T5071] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.549309][ T5071] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.561562][ T6] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 82.575685][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.587234][ T5073] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.598069][ T5517] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.616038][ T5073] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 82.625029][ T5073] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 82.636652][ T5517] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.972129][ T5073] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 82.987698][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 82.996763][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.006432][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.015297][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.024867][ T5517] device veth0_vlan entered promiscuous mode [ 83.037252][ T5517] device veth1_vlan entered promiscuous mode [ 83.057304][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.065416][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.073794][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 83.082841][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.095225][ T5517] device veth0_macvtap entered promiscuous mode [ 83.104474][ T5517] device veth1_macvtap entered promiscuous mode [ 83.120649][ T5517] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.129044][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.137393][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 83.145817][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 83.154789][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.167271][ T5517] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.175036][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 83.183627][ T5071] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 83.235902][ T10] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.256794][ T10] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.270951][ T2488] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 83.283623][ T10] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 83.292134][ T10] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 83.301431][ T2488] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 83.337334][ T5538] loop0: detected capacity change from 0 to 96 [ 83.345620][ T25] audit: type=1400 audit(1672873980.402:192): avc: denied { mounton } for pid=5537 comm="syz-executor.0" path="/root/syzkaller-testdir622536218/syzkaller.IjW9vk/0/file0" dev="sda1" ino=1149 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1 [ 83.359524][ T5538] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 1024) [ 83.384298][ T5538] NILFS (loop0): broken superblock, retrying with spare superblock (blocksize = 2048) [ 83.395340][ T5538] NILFS (loop0): mounting unchecked fs [ 83.410353][ T5538] NILFS (loop0): recovery complete [ 83.422462][ T5539] NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds [ 83.972759][ T4375] Bluetooth: hci0: command 0x0409 tx timeout [ 86.052340][ T4375] Bluetooth: hci0: command 0x041b tx timeout [ 88.131913][ T5061] Bluetooth: hci0: command 0x040f tx timeout [ 90.211143][ T5061] Bluetooth: hci0: command 0x0419 tx timeout [ 206.531244][ T5061] Bluetooth: hci0: command 0x0406 tx timeout [ 238.371422][ T27] INFO: task syz-executor.0:5517 blocked for more than 143 seconds. [ 238.379671][ T27] Not tainted 6.2.0-rc2-syzkaller-00024-g512dee0c00ad #0 [ 238.389931][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 238.398994][ T27] task:syz-executor.0 state:D stack:24144 pid:5517 ppid:1 flags:0x00004004 [ 238.409921][ T27] Call Trace: [ 238.413543][ T27] [ 238.416513][ T27] __schedule+0xb8a/0x5450 [ 238.422779][ T27] ? find_held_lock+0x2d/0x110 [ 238.427707][ T27] ? prepare_to_wait_event+0xd0/0x6a0 [ 238.433536][ T27] ? io_schedule_timeout+0x150/0x150 [ 238.438894][ T27] ? mark_held_locks+0x9f/0xe0 [ 238.445612][ T27] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 238.451790][ T27] ? lockdep_hardirqs_on+0x7d/0x100 [ 238.457086][ T27] ? _raw_spin_unlock_irqrestore+0x41/0x70 [ 238.465307][ T27] schedule+0xde/0x1b0 [ 238.469464][ T27] wb_wait_for_completion+0x182/0x240 [ 238.475438][ T27] ? wb_writeback+0xd70/0xd70 [ 238.480177][ T27] ? prepare_to_wait_exclusive+0x2c0/0x2c0 [ 238.487788][ T27] ? down_write_killable+0x250/0x250 [ 238.493885][ T27] ? nilfs_sync_fs+0x34a/0x580 [ 238.498764][ T27] ? I_BDEV+0xd/0x20 [ 238.504559][ T27] sync_inodes_sb+0x1aa/0x9e0 [ 238.509392][ T27] ? try_to_writeback_inodes_sb+0xc0/0xc0 [ 238.515832][ T27] ? get_nr_dirty_inodes+0x11e/0x1b0 [ 238.522811][ T27] ? dput+0x80a/0xdb0 [ 238.526914][ T27] sync_filesystem.part.0+0xe6/0x1d0 [ 238.532644][ T27] sync_filesystem+0x8f/0xc0 [ 238.537548][ T27] generic_shutdown_super+0x74/0x410 [ 238.544809][ T27] kill_block_super+0x9b/0xf0 [ 238.549604][ T27] deactivate_locked_super+0x98/0x160 [ 238.555685][ T27] deactivate_super+0xb1/0xd0 [ 238.560585][ T27] cleanup_mnt+0x2ae/0x3d0 [ 238.566949][ T27] task_work_run+0x16f/0x270 [ 238.571901][ T27] ? task_work_cancel+0x30/0x30 [ 238.576802][ T27] exit_to_user_mode_prepare+0x23c/0x250 [ 238.584253][ T27] syscall_exit_to_user_mode+0x1d/0x50 [ 238.589859][ T27] do_syscall_64+0x46/0xb0 [ 238.594991][ T27] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 238.601013][ T27] RIP: 0033:0x466eb7 [ 238.606666][ T27] RSP: 002b:00007ffee0bb6dd8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 [ 238.615425][ T27] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000466eb7 [ 238.625066][ T27] RDX: 00007ffee0bb6ea9 RSI: 0000000000000002 RDI: 00007ffee0bb6ea0 [ 238.633621][ T27] RBP: 00007ffee0bb6ea0 R08: 00000000ffffffff R09: 00007ffee0bb6c70 [ 238.641981][ T27] R10: 0000000002a3d893 R11: 0000000000000246 R12: 00000000004af4e4 [ 238.650687][ T27] R13: 00007ffee0bb7f50 R14: 0000000002a3d810 R15: 00007ffee0bb7f90 [ 238.659107][ T27] [ 238.662473][ T27] [ 238.662473][ T27] Showing all locks held in the system: [ 238.670327][ T27] 2 locks held by kworker/u4:0/8: [ 238.675944][ T27] #0: ffff888017690938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 [ 238.687098][ T27] #1: ffffc900002efda8 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 [ 238.699461][ T27] 1 lock held by rcu_tasks_kthre/11: [ 238.706386][ T27] #0: ffffffff8c78df70 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 [ 238.717315][ T27] 1 lock held by rcu_tasks_trace/12: [ 238.724280][ T27] #0: ffffffff8c78dc70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 [ 238.735827][ T27] 1 lock held by khungtaskd/27: [ 238.742053][ T27] #0: ffffffff8c78eac0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 [ 238.752778][ T27] 2 locks held by getty/4738: [ 238.757497][ T27] #0: ffff88801c4dd098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 [ 238.768075][ T27] #1: ffffc900020182f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 [ 238.778689][ T27] 2 locks held by syz-executor.0/5517: [ 238.784474][ T27] #0: ffff88802b8700e0 (&type->s_umount_key#64){+.+.}-{3:3}, at: deactivate_super+0xa9/0xd0 [ 238.795065][ T27] #1: ffff88801e77e7d0 (&bdi->wb_switch_rwsem){+.+.}-{3:3}, at: sync_inodes_sb+0x190/0x9e0 [ 238.805573][ T27] 1 lock held by segctord/5539: [ 238.810468][ T27] [ 238.813185][ T27] ============================================= [ 238.813185][ T27] [ 238.823329][ T27] NMI backtrace for cpu 0 [ 238.827691][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.2.0-rc2-syzkaller-00024-g512dee0c00ad #0 [ 238.837564][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 238.847651][ T27] Call Trace: [ 238.850990][ T27] [ 238.853951][ T27] dump_stack_lvl+0xd1/0x138 [ 238.858590][ T27] nmi_cpu_backtrace.cold+0x24/0x18a [ 238.864017][ T27] nmi_trigger_cpumask_backtrace+0x333/0x3c0 [ 238.870322][ T27] ? lapic_can_unplug_cpu+0x80/0x80 [ 238.875553][ T27] watchdog+0xc75/0xfc0 [ 238.879812][ T27] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 238.885832][ T27] kthread+0x2e8/0x3a0 [ 238.889929][ T27] ? kthread_complete_and_exit+0x40/0x40 [ 238.895591][ T27] ret_from_fork+0x1f/0x30 [ 238.900047][ T27] [ 238.903276][ T27] Sending NMI from CPU 0 to CPUs 1: [ 238.908516][ C1] NMI backtrace for cpu 1 [ 238.908528][ C1] CPU: 1 PID: 8 Comm: kworker/u4:0 Not tainted 6.2.0-rc2-syzkaller-00024-g512dee0c00ad #0 [ 238.908547][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 238.908558][ C1] Workqueue: writeback wb_workfn (flush-7:0) [ 238.908588][ C1] RIP: 0010:__this_cpu_preempt_check+0x11/0x20 [ 238.908615][ C1] Code: 00 00 48 c7 c6 c0 9b a6 8a 48 c7 c7 00 9c a6 8a e9 74 fe ff ff 0f 1f 40 00 f3 0f 1e fa 55 48 89 fd 0f 1f 44 00 00 48 89 ee 5d <48> c7 c7 40 9c a6 8a e9 53 fe ff ff 0f 1f 00 f3 0f 1e fa eb 1a 0f [ 238.908630][ C1] RSP: 0018:ffffc900002ef3e0 EFLAGS: 00000046 [ 238.908643][ C1] RAX: 0000000000000007 RBX: 1ffff9200005de80 RCX: 0000000000000000 [ 238.908654][ C1] RDX: 0000000000000000 RSI: ffffffff8a4c4040 RDI: ffffffff8a4c4040 [ 238.908666][ C1] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8e721817 [ 238.908676][ C1] R10: fffffbfff1ce4302 R11: 0000000000000000 R12: 0000000000000000 [ 238.908686][ C1] R13: 0000000000000000 R14: ffff8880b99368e0 R15: 0000000000000000 [ 238.908698][ C1] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 238.908713][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 238.908724][ C1] CR2: 00007f0c54dcd020 CR3: 000000000c48e000 CR4: 00000000003506e0 [ 238.908736][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 238.908746][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 238.908756][ C1] Call Trace: [ 238.908761][ C1] [ 238.908766][ C1] lock_acquire+0x1a8/0x630 [ 238.908795][ C1] ? lock_release+0x810/0x810 [ 238.908821][ C1] ? lru_add_drain+0x1e0/0x440 [ 238.908892][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 238.908924][ C1] ? lru_add_drain_cpu+0x478/0x850 [ 238.908941][ C1] mlock_page_drain_local+0x89/0x4e0 [ 238.908990][ C1] ? mlock_page_drain_local+0x59/0x4e0 [ 238.909013][ C1] __pagevec_release+0x89/0xe0 [ 238.909030][ C1] write_cache_pages+0x16cf/0x19c0 [ 238.909080][ C1] ? dirty_background_bytes_handler+0x80/0x80 [ 238.909105][ C1] ? balance_dirty_pages_ratelimited+0x20/0x20 [ 238.909132][ C1] ? drop_slab+0x2a0/0x2a0 [ 238.909184][ C1] ? asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 238.909234][ C1] ? prepare_to_wait_exclusive+0x2c0/0x2c0 [ 238.909263][ C1] ? do_writepages+0x207/0x690 [ 238.909288][ C1] do_writepages+0x2b8/0x690 [ 238.909313][ C1] ? writeback_set_ratelimit+0x150/0x150 [ 238.909340][ C1] ? find_held_lock+0x2d/0x110 [ 238.909365][ C1] ? wbc_attach_and_unlock_inode+0x4d0/0x8d0 [ 238.909386][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 238.909414][ C1] __writeback_single_inode+0x159/0x1440 [ 238.909435][ C1] ? wbc_attach_and_unlock_inode+0x4d0/0x8d0 [ 238.909456][ C1] writeback_sb_inodes+0x54d/0xf90 [ 238.909477][ C1] ? sync_inode_metadata+0xe0/0xe0 [ 238.909499][ C1] ? rcu_read_lock_sched_held+0x3e/0x70 [ 238.909525][ C1] ? queue_io+0x427/0x600 [ 238.909544][ C1] wb_writeback+0x2c5/0xd70 [ 238.909564][ C1] ? __writeback_inodes_wb+0x280/0x280 [ 238.909586][ C1] wb_workfn+0x2e0/0x12f0 [ 238.909607][ C1] ? inode_wait_for_writeback+0x40/0x40 [ 238.909629][ C1] ? lock_release+0x810/0x810 [ 238.909654][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 238.909682][ C1] process_one_work+0x9bf/0x1710 [ 238.909704][ C1] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 238.909723][ C1] ? rwlock_bug.part.0+0x90/0x90 [ 238.909739][ C1] ? _raw_spin_lock_irq+0x45/0x50 [ 238.909763][ C1] worker_thread+0x669/0x1090 [ 238.909783][ C1] ? process_one_work+0x1710/0x1710 [ 238.909802][ C1] kthread+0x2e8/0x3a0 [ 238.909817][ C1] ? kthread_complete_and_exit+0x40/0x40 [ 238.909834][ C1] ret_from_fork+0x1f/0x30 [ 238.909859][ C1] [ 238.918853][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 238.918868][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.2.0-rc2-syzkaller-00024-g512dee0c00ad #0 [ 238.918892][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 238.918903][ T27] Call Trace: [ 238.918909][ T27] [ 238.918916][ T27] dump_stack_lvl+0xd1/0x138 [ 238.918952][ T27] panic+0x2cc/0x626 [ 238.919004][ T27] ? panic_print_sys_info.part.0+0x110/0x110 [ 238.919037][ T27] ? preempt_schedule_thunk+0x1a/0x20 [ 238.919069][ T27] ? watchdog.cold+0x130/0x158 [ 238.919102][ T27] watchdog.cold+0x141/0x158 [ 238.919127][ T27] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 238.919159][ T27] kthread+0x2e8/0x3a0 [ 238.919178][ T27] ? kthread_complete_and_exit+0x40/0x40 [ 238.919198][ T27] ret_from_fork+0x1f/0x30 [ 238.919227][ T27] [ 238.925331][ T27] Kernel Offset: disabled [ 239.362129][ T27] Rebooting in 86400 seconds..