[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.105' (ECDSA) to the list of known hosts. 2021/08/20 06:30:05 parsed 1 programs 2021/08/20 06:30:05 executed programs: 0 syzkaller login: [ 1578.041035][ T37] audit: type=1400 audit(1629441005.639:8): avc: denied { execmem } for pid=8526 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 1579.450554][ T8527] chnl_net:caif_netlink_parms(): no params data found [ 1579.517574][ T8527] bridge0: port 1(bridge_slave_0) entered blocking state [ 1579.525611][ T8527] bridge0: port 1(bridge_slave_0) entered disabled state [ 1579.533419][ T8527] device bridge_slave_0 entered promiscuous mode [ 1579.545281][ T8527] bridge0: port 2(bridge_slave_1) entered blocking state [ 1579.552416][ T8527] bridge0: port 2(bridge_slave_1) entered disabled state [ 1579.561159][ T8527] device bridge_slave_1 entered promiscuous mode [ 1579.582836][ T8527] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 1579.596075][ T8527] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 1579.620838][ T8527] team0: Port device team_slave_0 added [ 1579.628430][ T8527] team0: Port device team_slave_1 added [ 1579.648173][ T8527] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 1579.655313][ T8527] 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. [ 1579.683460][ T8527] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 1579.698012][ T8527] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 1579.705382][ T8527] 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. [ 1579.733275][ T8527] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 1579.761106][ T8527] device hsr_slave_0 entered promiscuous mode [ 1579.767999][ T8527] device hsr_slave_1 entered promiscuous mode [ 1579.884724][ T8527] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 1579.896845][ T8527] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 1579.907109][ T8527] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 1579.917135][ T8527] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 1579.944241][ T8527] bridge0: port 2(bridge_slave_1) entered blocking state [ 1579.951378][ T8527] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1579.959296][ T8527] bridge0: port 1(bridge_slave_0) entered blocking state [ 1579.966454][ T8527] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1580.011930][ T8527] 8021q: adding VLAN 0 to HW filter on device bond0 [ 1580.025848][ T4566] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 1580.038213][ T4566] bridge0: port 1(bridge_slave_0) entered disabled state [ 1580.047896][ T4566] bridge0: port 2(bridge_slave_1) entered disabled state [ 1580.057454][ T4566] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 1580.073576][ T8527] 8021q: adding VLAN 0 to HW filter on device team0 [ 1580.086283][ T4566] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 1580.094987][ T4566] bridge0: port 1(bridge_slave_0) entered blocking state [ 1580.102052][ T4566] bridge0: port 1(bridge_slave_0) entered forwarding state [ 1580.115591][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 1580.124937][ T8668] bridge0: port 2(bridge_slave_1) entered blocking state [ 1580.131999][ T8668] bridge0: port 2(bridge_slave_1) entered forwarding state [ 1580.153756][ T8749] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 1580.162611][ T8749] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 1580.177760][ T8752] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 1580.188712][ T4566] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 1580.202331][ T8527] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 1580.214932][ T8527] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 1580.222764][ T8752] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 1580.244268][ T4566] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 1580.251680][ T4566] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 1580.265886][ T8527] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 1580.285967][ T4566] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 1580.307644][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 1580.316723][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 1580.325745][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 1580.337439][ T8527] device veth0_vlan entered promiscuous mode [ 1580.349297][ T8527] device veth1_vlan entered promiscuous mode [ 1580.372059][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 1580.380392][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 1580.389233][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 1580.401557][ T8527] device veth0_macvtap entered promiscuous mode [ 1580.412640][ T8527] device veth1_macvtap entered promiscuous mode [ 1580.421134][ T8668] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 1580.440274][ T8527] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 1580.448603][ T8752] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 1580.457540][ T8752] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 1580.469414][ T8527] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 1580.478023][ T4566] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 1580.487945][ T4566] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 1580.500109][ T8527] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 1580.516387][ T8527] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 1580.525519][ T8527] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 1580.536108][ T8527] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 1580.637025][ T8542] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1580.666021][ T8542] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1580.677445][ T8749] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 1580.706635][ T29] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 1580.715918][ T29] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 1580.731066][ T8752] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 1581.224955][ T8752] Bluetooth: hci0: command 0x0409 tx timeout [ 1583.303668][ T8752] Bluetooth: hci0: command 0x041b tx timeout 2021/08/20 06:30:11 executed programs: 3 [ 1585.384719][ T8439] Bluetooth: hci0: command 0x040f tx timeout [ 1587.464227][ T8439] Bluetooth: hci0: command 0x0419 tx timeout 2021/08/20 06:30:16 executed programs: 9 2021/08/20 06:30:22 executed programs: 15 2021/08/20 06:30:27 executed programs: 21 2021/08/20 06:30:32 executed programs: 27 [ 1606.902919][ T3253] ieee802154 phy0 wpan0: encryption failed: -22 [ 1606.909421][ T3253] ieee802154 phy1 wpan1: encryption failed: -22 2021/08/20 06:30:38 executed programs: 33 2021/08/20 06:30:43 executed programs: 39 2021/08/20 06:30:49 executed programs: 45 2021/08/20 06:30:54 executed programs: 51 2021/08/20 06:31:00 executed programs: 57 2021/08/20 06:31:05 executed programs: 63 2021/08/20 06:31:11 executed programs: 69 2021/08/20 06:31:16 executed programs: 75 2021/08/20 06:31:22 executed programs: 81 2021/08/20 06:31:27 executed programs: 87 2021/08/20 06:31:32 executed programs: 93 [ 1668.338017][ T3253] ieee802154 phy0 wpan0: encryption failed: -22 [ 1668.344359][ T3253] ieee802154 phy1 wpan1: encryption failed: -22 2021/08/20 06:31:38 executed programs: 99 [ 1706.254007][ T8668] Bluetooth: hci0: command 0x0406 tx timeout [ 1729.783134][ T3253] ieee802154 phy0 wpan0: encryption failed: -22 [ 1729.789443][ T3253] ieee802154 phy1 wpan1: encryption failed: -22 [ 1791.208464][ T3253] ieee802154 phy0 wpan0: encryption failed: -22 [ 1791.214735][ T3253] ieee802154 phy1 wpan1: encryption failed: -22 [ 1823.215059][ T1643] INFO: task syz-executor.0:9486 blocked for more than 143 seconds. [ 1823.223157][ T1643] Not tainted 5.14.0-rc6-syzkaller #0 [ 1823.230438][ T1643] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1823.240037][ T1643] task:syz-executor.0 state:D stack:28520 pid: 9486 ppid: 8527 flags:0x00004004 [ 1823.249710][ T1643] Call Trace: [ 1823.252989][ T1643] __schedule+0x93a/0x26f0 [ 1823.257640][ T1643] ? io_schedule_timeout+0x140/0x140 [ 1823.262963][ T1643] schedule+0xd3/0x270 [ 1823.267085][ T1643] schedule_timeout+0x1db/0x2a0 [ 1823.271941][ T1643] ? usleep_range+0x170/0x170 [ 1823.276780][ T1643] ? wait_for_completion+0x16e/0x280 [ 1823.282080][ T1643] ? lock_downgrade+0x6e0/0x6e0 [ 1823.287219][ T1643] ? do_raw_spin_lock+0x120/0x2b0 [ 1823.292252][ T1643] ? rwlock_bug.part.0+0x90/0x90 [ 1823.297300][ T1643] ? _raw_spin_unlock_irq+0x1f/0x40 [ 1823.302688][ T1643] wait_for_completion+0x176/0x280 [ 1823.307877][ T1643] ? __flush_work+0x4e0/0xad0 [ 1823.312655][ T1643] ? bit_wait_io_timeout+0x160/0x160 [ 1823.318096][ T1643] ? _raw_spin_unlock_irq+0x1f/0x40 [ 1823.323309][ T1643] __flush_work+0x50e/0xad0 [ 1823.327889][ T1643] ? queue_delayed_work_on+0x120/0x120 [ 1823.333364][ T1643] ? __flush_work+0x815/0xad0 [ 1823.338188][ T1643] ? flush_workqueue_prep_pwqs+0x510/0x510 [ 1823.344006][ T1643] ? try_to_grab_pending+0xbd/0xd0 [ 1823.349981][ T1643] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 1823.357511][ T1643] __cancel_work_timer+0x3f9/0x570 [ 1823.362647][ T1643] ? try_to_grab_pending+0xd0/0xd0 [ 1823.369050][ T1643] ? p9_fd_close+0x280/0x520 [ 1823.373697][ T1643] ? lock_downgrade+0x6e0/0x6e0 [ 1823.380022][ T1643] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 1823.386440][ T1643] p9_fd_close+0x305/0x520 [ 1823.390853][ T1643] ? p9_client_create+0xa46/0x1110 [ 1823.397468][ T1643] p9_client_create+0x95a/0x1110 [ 1823.402516][ T1643] ? p9_client_flush+0x430/0x430 [ 1823.408277][ T1643] ? lockdep_init_map_type+0x2c3/0x7b0 [ 1823.413733][ T1643] ? trace_kmalloc+0x32/0xf0 [ 1823.420741][ T1643] ? __kmalloc_track_caller+0x229/0x4d0 [ 1823.426604][ T1643] ? __raw_spin_lock_init+0x36/0x110 [ 1823.431965][ T1643] v9fs_session_init+0x1dd/0x17b0 [ 1823.438164][ T1643] ? find_held_lock+0x2d/0x110 [ 1823.443175][ T1643] ? v9fs_show_options+0x780/0x780 [ 1823.448565][ T1643] ? rcu_read_lock_sched_held+0x3a/0x70 [ 1823.456713][ T1643] ? trace_kmalloc+0x32/0xf0 [ 1823.461357][ T1643] ? kmem_cache_alloc_trace+0x1fd/0x480 [ 1823.467013][ T1643] ? rcu_read_lock_sched_held+0x3a/0x70 [ 1823.472735][ T1643] v9fs_mount+0x79/0x9c0 [ 1823.477167][ T1643] ? v9fs_write_inode+0x60/0x60 [ 1823.482032][ T1643] legacy_get_tree+0x105/0x220 [ 1823.486955][ T1643] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1823.493250][ T1643] vfs_get_tree+0x89/0x2f0 [ 1823.498074][ T1643] path_mount+0x132a/0x1fa0 [ 1823.502677][ T1643] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1823.509136][ T1643] ? strncpy_from_user+0x2a0/0x3e0 [ 1823.514310][ T1643] ? finish_automount+0xaf0/0xaf0 [ 1823.519494][ T1643] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 1823.525848][ T1643] ? getname_flags.part.0+0x1dd/0x4f0 [ 1823.531235][ T1643] ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70 [ 1823.537603][ T1643] __x64_sys_mount+0x27f/0x300 [ 1823.542686][ T1643] ? copy_mnt_ns+0xae0/0xae0 [ 1823.547346][ T1643] ? syscall_enter_from_user_mode+0x21/0x70 [ 1823.553272][ T1643] do_syscall_64+0x35/0xb0 [ 1823.557872][ T1643] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1823.563782][ T1643] RIP: 0033:0x4665e9 [ 1823.568578][ T1643] RSP: 002b:00007f6f29e43188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 1823.577156][ T1643] RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004665e9 [ 1823.585244][ T1643] RDX: 0000000020000240 RSI: 0000000020000200 RDI: 0000000000000000 [ 1823.593246][ T1643] RBP: 00000000004bfcc4 R08: 0000000020000580 R09: 0000000000000000 [ 1823.601379][ T1643] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c1a8 [ 1823.609809][ T1643] R13: 00007ffc67be459f R14: 00007f6f29e43300 R15: 0000000000022000 [ 1823.618051][ T1643] [ 1823.618051][ T1643] Showing all locks held in the system: [ 1823.625919][ T1643] 1 lock held by khungtaskd/1643: [ 1823.630960][ T1643] #0: ffffffff8b979840 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 1823.641009][ T1643] 1 lock held by in:imklog/8145: [ 1823.646019][ T1643] 2 locks held by kworker/0:0/8439: [ 1823.651213][ T1643] #0: ffff888010867d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x871/0x1630 [ 1823.661666][ T1643] #1: ffffc90001a47db0 ((work_completion)(&m->wq)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1630 [ 1823.672504][ T1643] [ 1823.674826][ T1643] ============================================= [ 1823.674826][ T1643] [ 1823.684225][ T1643] NMI backtrace for cpu 0 [ 1823.688682][ T1643] CPU: 0 PID: 1643 Comm: khungtaskd Not tainted 5.14.0-rc6-syzkaller #0 [ 1823.697121][ T1643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1823.707171][ T1643] Call Trace: [ 1823.710439][ T1643] dump_stack_lvl+0xcd/0x134 [ 1823.715072][ T1643] nmi_cpu_backtrace.cold+0x44/0xd7 [ 1823.720255][ T1643] ? lapic_can_unplug_cpu+0x80/0x80 [ 1823.725479][ T1643] nmi_trigger_cpumask_backtrace+0x1b3/0x230 [ 1823.731735][ T1643] watchdog+0xd0a/0xfc0 [ 1823.735890][ T1643] ? reset_hung_task_detector+0x30/0x30 [ 1823.741444][ T1643] kthread+0x3e5/0x4d0 [ 1823.745541][ T1643] ? set_kthread_struct+0x130/0x130 [ 1823.750724][ T1643] ret_from_fork+0x1f/0x30 [ 1823.755422][ T1643] Sending NMI from CPU 0 to CPUs 1: [ 1823.761357][ C1] NMI backtrace for cpu 1 [ 1823.761366][ C1] CPU: 1 PID: 4847 Comm: systemd-journal Not tainted 5.14.0-rc6-syzkaller #0 [ 1823.761377][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1823.761387][ C1] RIP: 0010:unwind_next_frame+0x34f/0x1ce0 [ 1823.761398][ C1] Code: e8 96 f5 ff ff 49 89 c0 4d 85 c0 0f 84 39 02 00 00 4d 8d 78 04 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 0f b6 04 02 <4c> 89 fa 83 e2 07 38 d0 7f 08 84 c0 0f 85 1e 09 00 00 41 0f b6 40 [ 1823.761414][ C1] RSP: 0018:ffffc900017b7930 EFLAGS: 00000a07 [ 1823.761446][ C1] RAX: 0000000000000000 RBX: 1ffff920002f6f2e RCX: ffffffff812bfb0b [ 1823.761455][ C1] RDX: 1ffffffff1bc9f17 RSI: ffffffff8de4f8ba RDI: ffffffff8d781f1c [ 1823.761464][ C1] RBP: 0000000000000001 R08: ffffffff8de4f8ba R09: ffffffff8de4f8ba [ 1823.761474][ C1] R10: fffff520002f6f56 R11: 0000000000086088 R12: ffffc900017b7aa0 [ 1823.761483][ C1] R13: ffffc900017b7a8d R14: ffffc900017b7a58 R15: ffffffff8de4f8be [ 1823.761492][ C1] FS: 00007f0cabcb68c0(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 1823.761502][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1823.761510][ C1] CR2: 00007f0ca90ad000 CR3: 0000000016d21000 CR4: 00000000001506e0 [ 1823.761519][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1823.761528][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1823.761536][ C1] Call Trace: [ 1823.761540][ C1] ? arch_stack_walk+0x5c/0xe0 [ 1823.761546][ C1] ? deref_stack_reg+0x150/0x150 [ 1823.761553][ C1] ? kvm_sched_clock_read+0x14/0x40 [ 1823.761559][ C1] ? sched_clock_cpu+0x15/0x1f0 [ 1823.761565][ C1] ? get_stack_info_noinstr+0x14/0x120 [ 1823.761572][ C1] __unwind_start+0x51b/0x800 [ 1823.761578][ C1] ? create_prof_cpu_mask+0x20/0x20 [ 1823.761584][ C1] arch_stack_walk+0x5c/0xe0 [ 1823.761590][ C1] ? arch_stack_walk+0x5c/0xe0 [ 1823.761596][ C1] stack_trace_save+0x8c/0xc0 [ 1823.761602][ C1] ? stack_trace_consume_entry+0x160/0x160 [ 1823.761608][ C1] kasan_save_stack+0x1b/0x40 [ 1823.761615][ C1] ? lockdep_hardirqs_on_prepare+0x400/0x400 [ 1823.761622][ C1] ? __zone_watermark_ok+0x450/0x450 [ 1823.761628][ C1] ? find_held_lock+0x2d/0x110 [ 1823.761634][ C1] ? cache_alloc_refill+0x30d/0x380 [ 1823.761639][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 1823.761644][ C1] ? find_held_lock+0x2d/0x110 [ 1823.761649][ C1] ? do_raw_spin_unlock+0x171/0x230 [ 1823.761654][ C1] ? kasan_unpoison+0x3c/0x60 [ 1823.761659][ C1] __kasan_slab_alloc+0x81/0xa0 [ 1823.761664][ C1] kmem_cache_alloc+0x25f/0x540 [ 1823.761669][ C1] ? map_id_range_down+0x1c4/0x340 [ 1823.761674][ C1] getname_flags.part.0+0x50/0x4f0 [ 1823.761679][ C1] user_path_at_empty+0xa1/0x100 [ 1823.761684][ C1] do_faccessat+0x127/0x850 [ 1823.761689][ C1] ? stream_open+0x60/0x60 [ 1823.761694][ C1] ? __secure_computing+0x104/0x360 [ 1823.761699][ C1] do_syscall_64+0x35/0xb0 [ 1823.761704][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xae [ 1823.761709][ C1] RIP: 0033:0x7f0caaf719c7 [ 1823.761719][ C1] Code: 83 c4 08 48 3d 01 f0 ff ff 73 01 c3 48 8b 0d c8 d4 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 15 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d a1 d4 2b 00 f7 d8 64 89 01 48 [ 1823.761733][ C1] RSP: 002b:00007ffd479d1868 EFLAGS: 00000246 ORIG_RAX: 0000000000000015 [ 1823.761745][ C1] RAX: ffffffffffffffda RBX: 00007ffd479d4890 RCX: 00007f0caaf719c7 [ 1823.761752][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000055ae9251c9a3 [ 1823.761760][ C1] RBP: 00007ffd479d19b0 R08: 000055ae925123e5 R09: 0000000000000018 [ 1823.761768][ C1] R10: 0000000000000069 R11: 0000000000000246 R12: 0000000000000000 [ 1823.761776][ C1] R13: 0000000000000000 R14: 000055ae93efd8c0 R15: 00007ffd479d1ea0 [ 1823.761914][ T1643] Kernel panic - not syncing: hung_task: blocked tasks [ 1824.126716][ T1643] CPU: 0 PID: 1643 Comm: khungtaskd Not tainted 5.14.0-rc6-syzkaller #0 [ 1824.135134][ T1643] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1824.145180][ T1643] Call Trace: [ 1824.148454][ T1643] dump_stack_lvl+0xcd/0x134 [ 1824.153065][ T1643] panic+0x306/0x73d [ 1824.156958][ T1643] ? __warn_printk+0xf3/0xf3 [ 1824.161546][ T1643] ? lapic_can_unplug_cpu+0x80/0x80 [ 1824.166744][ T1643] ? preempt_schedule_thunk+0x16/0x18 [ 1824.172201][ T1643] ? nmi_trigger_cpumask_backtrace+0x196/0x230 [ 1824.178438][ T1643] ? watchdog.cold+0x5/0x158 [ 1824.183055][ T1643] watchdog.cold+0x16/0x158 [ 1824.187558][ T1643] ? reset_hung_task_detector+0x30/0x30 [ 1824.193098][ T1643] kthread+0x3e5/0x4d0 [ 1824.197172][ T1643] ? set_kthread_struct+0x130/0x130 [ 1824.202372][ T1643] ret_from_fork+0x1f/0x30 [ 1824.208318][ T1643] Kernel Offset: disabled [ 1824.212645][ T1643] Rebooting in 86400 seconds..