Warning: Permanently added '10.128.0.66' (ED25519) to the list of known hosts. 2025/08/24 21:24:33 parsed 1 programs [ 250.873954][ T24] audit: type=1400 audit(1756070673.849:64): avc: denied { node_bind } for pid=275 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 250.894835][ T24] audit: type=1400 audit(1756070673.849:65): avc: denied { create } for pid=275 comm="syz-execprog" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=rawip_socket permissive=1 [ 250.914612][ T24] audit: type=1400 audit(1756070673.849:66): avc: denied { module_request } for pid=275 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 251.522449][ T24] audit: type=1400 audit(1756070674.499:67): avc: denied { mounton } for pid=283 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2023 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 251.523869][ T283] cgroup: Unknown subsys name 'net' [ 251.545112][ T24] audit: type=1400 audit(1756070674.499:68): avc: denied { mount } for pid=283 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 251.572382][ T24] audit: type=1400 audit(1756070674.529:69): avc: denied { unmount } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 251.572683][ T283] cgroup: Unknown subsys name 'devices' [ 251.771062][ T283] cgroup: Unknown subsys name 'hugetlb' [ 251.776670][ T283] cgroup: Unknown subsys name 'rlimit' [ 252.009642][ T24] audit: type=1400 audit(1756070674.979:70): avc: denied { setattr } for pid=283 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=253 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 252.032812][ T24] audit: type=1400 audit(1756070674.989:71): avc: denied { create } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 252.053150][ T24] audit: type=1400 audit(1756070674.989:72): avc: denied { write } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 252.073469][ T24] audit: type=1400 audit(1756070674.989:73): avc: denied { read } for pid=283 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 252.078864][ T285] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 252.131866][ T283] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 252.537596][ T289] request_module fs-gadgetfs succeeded, but still no fs? [ 252.547732][ T289] cgroup: cgroup: disabling cgroup2 socket matching due to net_prio or net_cls activation [ 252.707457][ T302] bridge0: port 1(bridge_slave_0) entered blocking state [ 252.714556][ T302] bridge0: port 1(bridge_slave_0) entered disabled state [ 252.722243][ T302] device bridge_slave_0 entered promiscuous mode [ 252.728958][ T302] bridge0: port 2(bridge_slave_1) entered blocking state [ 252.735994][ T302] bridge0: port 2(bridge_slave_1) entered disabled state [ 252.743251][ T302] device bridge_slave_1 entered promiscuous mode [ 252.775768][ T302] bridge0: port 2(bridge_slave_1) entered blocking state [ 252.782918][ T302] bridge0: port 2(bridge_slave_1) entered forwarding state [ 252.790189][ T302] bridge0: port 1(bridge_slave_0) entered blocking state [ 252.797202][ T302] bridge0: port 1(bridge_slave_0) entered forwarding state [ 252.817773][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 252.825711][ T7] bridge0: port 1(bridge_slave_0) entered disabled state [ 252.834123][ T7] bridge0: port 2(bridge_slave_1) entered disabled state [ 252.842692][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 252.850857][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 252.857866][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 252.866923][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 252.875263][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 252.882297][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 252.897055][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 252.907100][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 252.919432][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 252.931249][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 252.939213][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 252.946683][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 252.954913][ T302] device veth0_vlan entered promiscuous mode [ 252.967472][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 252.976629][ T302] device veth1_macvtap entered promiscuous mode [ 252.986524][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 252.996335][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2025/08/24 21:24:36 executed programs: 0 [ 253.611324][ T49] device bridge_slave_1 left promiscuous mode [ 253.617522][ T49] bridge0: port 2(bridge_slave_1) entered disabled state [ 253.625828][ T49] device bridge_slave_0 left promiscuous mode [ 253.632031][ T49] bridge0: port 1(bridge_slave_0) entered disabled state [ 253.640332][ T49] device veth1_macvtap left promiscuous mode [ 253.646367][ T49] device veth0_vlan left promiscuous mode [ 253.745396][ T353] bridge0: port 1(bridge_slave_0) entered blocking state [ 253.752466][ T353] bridge0: port 1(bridge_slave_0) entered disabled state [ 253.759858][ T353] device bridge_slave_0 entered promiscuous mode [ 253.766591][ T353] bridge0: port 2(bridge_slave_1) entered blocking state [ 253.773757][ T353] bridge0: port 2(bridge_slave_1) entered disabled state [ 253.781079][ T353] device bridge_slave_1 entered promiscuous mode [ 253.820839][ T353] bridge0: port 2(bridge_slave_1) entered blocking state [ 253.827939][ T353] bridge0: port 2(bridge_slave_1) entered forwarding state [ 253.835320][ T353] bridge0: port 1(bridge_slave_0) entered blocking state [ 253.842352][ T353] bridge0: port 1(bridge_slave_0) entered forwarding state [ 253.865256][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 253.872865][ T308] bridge0: port 1(bridge_slave_0) entered disabled state [ 253.880217][ T308] bridge0: port 2(bridge_slave_1) entered disabled state [ 253.888848][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 253.897031][ T308] bridge0: port 1(bridge_slave_0) entered blocking state [ 253.904069][ T308] bridge0: port 1(bridge_slave_0) entered forwarding state [ 253.912837][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 253.920981][ T308] bridge0: port 2(bridge_slave_1) entered blocking state [ 253.927984][ T308] bridge0: port 2(bridge_slave_1) entered forwarding state [ 253.938832][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 253.948884][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 253.967730][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 253.981218][ T353] device veth0_vlan entered promiscuous mode [ 253.987498][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 253.995556][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 254.002968][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 254.013559][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 254.027138][ T353] device veth1_macvtap entered promiscuous mode [ 254.035810][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 254.045341][ T308] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 387.790245][ T26] INFO: task kworker/u4:2:49 blocked for more than 122 seconds. [ 387.797915][ T26] Not tainted 5.10.240-syzkaller #0 [ 387.989627][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 387.998334][ T26] task:kworker/u4:2 state:D stack: 0 pid: 49 ppid: 2 flags:0x10004000 [ 388.459645][ T26] Workqueue: netns cleanup_net [ 388.464447][ T26] Call Trace: [ 388.467727][ T26] __schedule+0xb47/0x1310 [ 388.789610][ T26] ? release_firmware_map_entry+0x190/0x190 [ 388.795533][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 389.069629][ T26] ? __kasan_check_write+0x14/0x20 [ 389.074785][ T26] ? kthread_data+0x50/0xc0 [ 389.079290][ T26] ? wq_worker_sleeping+0x60/0x200 [ 389.459634][ T26] schedule+0x13c/0x1d0 [ 389.463821][ T26] schedule_preempt_disabled+0x13/0x20 [ 389.469270][ T26] __mutex_lock+0x6c0/0xc50 [ 389.829614][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 389.836490][ T26] ? mutex_unlock+0x1c/0x40 [ 390.149633][ T26] __mutex_lock_slowpath+0xe/0x10 [ 390.154688][ T26] mutex_lock+0xcf/0xe0 [ 390.158832][ T26] ? mutex_trylock+0xa0/0xa0 [ 390.489618][ T26] rcu_barrier+0x46/0x400 [ 390.493980][ T26] l2tp_exit_net+0x135/0x1d0 [ 390.498556][ T26] ? pde_put+0x14e/0x1a0 [ 390.849633][ T26] ? l2tp_init_net+0x110/0x110 [ 390.854431][ T26] cleanup_net+0x586/0xb70 [ 390.858835][ T26] ? __kasan_check_write+0x14/0x20 [ 391.209607][ T26] ? ops_init+0x4a0/0x4a0 [ 391.213966][ T26] ? read_word_at_a_time+0x12/0x20 [ 391.219065][ T26] ? strscpy+0x9b/0x290 [ 391.559611][ T26] process_one_work+0x6e1/0xba0 [ 391.564490][ T26] worker_thread+0xa6a/0x13b0 [ 391.569155][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 391.969618][ T26] kthread+0x346/0x3d0 [ 391.973719][ T26] ? worker_clr_flags+0x190/0x190 [ 391.978731][ T26] ? kthread_blkcg+0xd0/0xd0 [ 392.319607][ T26] ret_from_fork+0x1f/0x30 [ 392.475816][ T26] INFO: task kworker/1:14:365 blocked for more than 127 seconds. [ 392.659600][ T26] Not tainted 5.10.240-syzkaller #0 [ 392.665350][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 393.019617][ T26] task:kworker/1:14 state:D stack: 0 pid: 365 ppid: 2 flags:0x10004000 [ 393.028854][ T26] Workqueue: events fqdir_work_fn [ 393.419600][ T26] Call Trace: [ 393.422933][ T26] __schedule+0xb47/0x1310 [ 393.427339][ T26] ? release_firmware_map_entry+0x190/0x190 [ 393.739615][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 393.744757][ T26] ? __kasan_check_write+0x14/0x20 [ 394.059617][ T26] ? _raw_spin_unlock_irq+0x4e/0x70 [ 394.064861][ T26] ? wq_worker_sleeping+0x196/0x200 [ 394.319607][ T26] schedule+0x13c/0x1d0 [ 394.323785][ T26] schedule_preempt_disabled+0x13/0x20 [ 394.329234][ T26] __mutex_lock+0x6c0/0xc50 [ 394.679636][ T26] ? debug_smp_processor_id+0x17/0x20 [ 394.685034][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 395.019643][ T26] ? slab_free_freelist_hook+0xc5/0x190 [ 395.025222][ T26] ? kvfree+0x35/0x40 [ 395.029192][ T26] __mutex_lock_slowpath+0xe/0x10 [ 395.379626][ T26] mutex_lock+0xcf/0xe0 [ 395.383812][ T26] ? mutex_trylock+0xa0/0xa0 [ 395.388389][ T26] ? inet_frag_pull_head+0x180/0x180 [ 395.779619][ T26] rcu_barrier+0x46/0x400 [ 395.783981][ T26] fqdir_work_fn+0x57/0xe0 [ 395.788385][ T26] process_one_work+0x6e1/0xba0 [ 396.109633][ T26] worker_thread+0xa6a/0x13b0 [ 396.114354][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 396.419811][ T26] ? __kasan_check_read+0x11/0x20 [ 396.424865][ T26] kthread+0x346/0x3d0 [ 396.428919][ T26] ? worker_clr_flags+0x190/0x190 [ 396.749637][ T26] ? kthread_blkcg+0xd0/0xd0 [ 396.754259][ T26] ret_from_fork+0x1f/0x30 [ 396.999613][ T26] NMI backtrace for cpu 0 [ 397.003978][ T26] CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.10.240-syzkaller #0 [ 397.011944][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 [ 397.021985][ T26] Call Trace: [ 397.025268][ T26] __dump_stack+0x21/0x24 [ 397.029582][ T26] dump_stack_lvl+0x169/0x1d8 [ 397.034248][ T26] ? show_regs_print_info+0x18/0x18 [ 397.039428][ T26] ? sched_show_task+0x324/0x4a0 [ 397.044349][ T26] ? __rcu_read_unlock+0xa0/0xa0 [ 397.049269][ T26] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 397.055322][ T26] dump_stack+0x15/0x1c [ 397.059465][ T26] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 397.065429][ T26] arch_trigger_cpumask_backtrace+0x10/0x20 [ 397.071309][ T26] watchdog+0xe2e/0xf70 [ 397.075471][ T26] ? hungtask_pm_notify+0x50/0x50 [ 397.080491][ T26] ? __kasan_check_read+0x11/0x20 [ 397.085602][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 397.090527][ T26] kthread+0x346/0x3d0 [ 397.094586][ T26] ? hungtask_pm_notify+0x50/0x50 [ 397.099593][ T26] ? kthread_blkcg+0xd0/0xd0 [ 397.104169][ T26] ret_from_fork+0x1f/0x30 [ 397.108642][ T26] Sending NMI from CPU 0 to CPUs 1: [ 397.114002][ C1] NMI backtrace for cpu 1 [ 397.114007][ C1] CPU: 1 PID: 367 Comm: syz.2.17 Not tainted 5.10.240-syzkaller #0 [ 397.114012][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 [ 397.114015][ C1] RIP: 0010:do_syscall_64+0x3d/0x40 [ 397.114024][ C1] Code: 48 3d c0 01 00 00 77 1a 48 3d c1 01 00 00 48 19 c9 48 21 c1 48 89 df ff 14 cd c0 35 c0 84 48 89 43 50 48 89 df e8 93 2c 00 00 <5b> 5d c3 55 48 89 e5 53 48 89 fb 65 48 8b 05 b0 14 90 7b 80 48 08 [ 397.114028][ C1] RSP: 0018:ffffc90001997f40 EFLAGS: 00000046 [ 397.114035][ C1] RAX: 0000000000000000 RBX: ffffc90001997f58 RCX: 0000000000000001 [ 397.114039][ C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 [ 397.114043][ C1] RBP: ffffc90001997f48 R08: dffffc0000000000 R09: ffffed10218134f1 [ 397.114048][ C1] R10: ffffed10218134f1 R11: 1ffff110218134f0 R12: 0000000000000000 [ 397.114052][ C1] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 397.114056][ C1] FS: 00005555568aa500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 397.114060][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 397.114064][ C1] CR2: 0000000000000000 CR3: 000000012560d000 CR4: 00000000003506a0 [ 397.114068][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 397.114072][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 397.114074][ C1] Call Trace: [ 397.114078][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 397.114080][ C1] RIP: 0033:0x7fa9f7add9b0 [ 397.114089][ C1] Code: 44 24 20 0f 29 44 24 30 0f 29 44 24 40 48 8b 44 24 08 ff d0 48 83 c4 50 31 c0 5b 5d 41 5c 41 5d 41 5e c3 0f 1f 80 00 00 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 c3 66 66 2e 0f 1f [ 397.114092][ C1] RSP: 002b:00007ffdbc4f7578 EFLAGS: 00000246 [ 397.114098][ C1] RAX: 0000000000000000 RBX: 00007fa9f7e45fa8 RCX: 00007fa9f7c1ebe9 [ 397.114103][ C1] RDX: 00007ffdbc4f7580 RSI: 00007ffdbc4f76b0 RDI: 0000000000000011 [ 397.114107][ C1] RBP: 0000000000000000 R08: 000821d4945e7af7 R09: 00000007bc4f7dff [ 397.114111][ C1] R10: 0000000000000005 R11: 0000000000000246 R12: 00007fa9f7e45fac [ 397.114115][ C1] R13: 00007fa9f7e45fa0 R14: 0000000000000095 R15: 0000000000000003 [ 420.429637][ T26] INFO: task kworker/u4:2:49 blocked for more than 155 seconds. [ 420.437296][ T26] Not tainted 5.10.240-syzkaller #0 [ 420.639603][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 420.648299][ T26] task:kworker/u4:2 state:D stack: 0 pid: 49 ppid: 2 flags:0x10004000 [ 421.119627][ T26] Workqueue: netns cleanup_net [ 421.124420][ T26] Call Trace: [ 421.127699][ T26] __schedule+0xb47/0x1310 [ 421.439615][ T26] ? release_firmware_map_entry+0x190/0x190 [ 421.445533][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 421.749637][ T26] ? __kasan_check_write+0x14/0x20 [ 421.754776][ T26] ? kthread_data+0x50/0xc0 [ 421.759441][ T26] ? wq_worker_sleeping+0x60/0x200 [ 422.129612][ T26] schedule+0x13c/0x1d0 [ 422.133798][ T26] schedule_preempt_disabled+0x13/0x20 [ 422.139242][ T26] __mutex_lock+0x6c0/0xc50 [ 422.469614][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 422.476405][ T26] ? mutex_unlock+0x1c/0x40 [ 422.779644][ T26] __mutex_lock_slowpath+0xe/0x10 [ 422.784696][ T26] mutex_lock+0xcf/0xe0 [ 422.788839][ T26] ? mutex_trylock+0xa0/0xa0 [ 423.179640][ T26] rcu_barrier+0x46/0x400 [ 423.184008][ T26] l2tp_exit_net+0x135/0x1d0 [ 423.188588][ T26] ? pde_put+0x14e/0x1a0 [ 423.499616][ T26] ? l2tp_init_net+0x110/0x110 [ 423.504412][ T26] cleanup_net+0x586/0xb70 [ 423.508830][ T26] ? __kasan_check_write+0x14/0x20 [ 423.879617][ T26] ? ops_init+0x4a0/0x4a0 [ 423.883979][ T26] ? read_word_at_a_time+0x12/0x20 [ 423.889080][ T26] ? strscpy+0x9b/0x290 [ 424.249646][ T26] process_one_work+0x6e1/0xba0 [ 424.254527][ T26] worker_thread+0xa6a/0x13b0 [ 424.259192][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 424.639624][ T26] kthread+0x346/0x3d0 [ 424.643728][ T26] ? worker_clr_flags+0x190/0x190 [ 424.648741][ T26] ? kthread_blkcg+0xd0/0xd0 [ 424.979648][ T26] ret_from_fork+0x1f/0x30 [ 425.119634][ T26] INFO: task kworker/1:14:365 blocked for more than 160 seconds. [ 425.127374][ T26] Not tainted 5.10.240-syzkaller #0 [ 425.459623][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 425.468329][ T26] task:kworker/1:14 state:D stack: 0 pid: 365 ppid: 2 flags:0x10004000 [ 425.939611][ T26] Workqueue: events fqdir_work_fn [ 425.944665][ T26] Call Trace: [ 425.947965][ T26] __schedule+0xb47/0x1310 [ 426.249618][ T26] ? release_firmware_map_entry+0x190/0x190 [ 426.255552][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 426.569663][ T26] ? __kasan_check_write+0x14/0x20 [ 426.574805][ T26] ? _raw_spin_unlock_irq+0x4e/0x70 [ 426.869630][ T26] ? wq_worker_sleeping+0x196/0x200 [ 426.874853][ T26] schedule+0x13c/0x1d0 [ 426.879001][ T26] schedule_preempt_disabled+0x13/0x20 [ 427.199647][ T26] __mutex_lock+0x6c0/0xc50 [ 427.204184][ T26] ? debug_smp_processor_id+0x17/0x20 [ 427.499620][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 427.506426][ T26] ? slab_free_freelist_hook+0xc5/0x190 [ 427.809611][ T26] ? kvfree+0x35/0x40 [ 427.813614][ T26] __mutex_lock_slowpath+0xe/0x10 [ 427.818631][ T26] mutex_lock+0xcf/0xe0 [ 428.139818][ T26] ? mutex_trylock+0xa0/0xa0 [ 428.144440][ T26] ? inet_frag_pull_head+0x180/0x180 [ 428.429643][ T26] rcu_barrier+0x46/0x400 [ 428.434011][ T26] fqdir_work_fn+0x57/0xe0 [ 428.438420][ T26] process_one_work+0x6e1/0xba0 [ 428.769645][ T26] worker_thread+0xa6a/0x13b0 [ 428.774367][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 429.069686][ T26] ? __kasan_check_read+0x11/0x20 [ 429.074740][ T26] kthread+0x346/0x3d0 [ 429.078798][ T26] ? worker_clr_flags+0x190/0x190 [ 429.399614][ T26] ? kthread_blkcg+0xd0/0xd0 [ 429.404239][ T26] ret_from_fork+0x1f/0x30 [ 429.649603][ T26] NMI backtrace for cpu 0 [ 429.653959][ T26] CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.10.240-syzkaller #0 [ 429.661916][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 [ 429.671956][ T26] Call Trace: [ 429.675240][ T26] __dump_stack+0x21/0x24 [ 429.679557][ T26] dump_stack_lvl+0x169/0x1d8 [ 429.684215][ T26] ? show_regs_print_info+0x18/0x18 [ 429.689398][ T26] ? sched_show_task+0x324/0x4a0 [ 429.694322][ T26] ? __rcu_read_unlock+0xa0/0xa0 [ 429.699254][ T26] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 429.705309][ T26] dump_stack+0x15/0x1c [ 429.709459][ T26] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 429.715428][ T26] arch_trigger_cpumask_backtrace+0x10/0x20 [ 429.721304][ T26] watchdog+0xe2e/0xf70 [ 429.725450][ T26] ? hungtask_pm_notify+0x50/0x50 [ 429.730460][ T26] ? __kasan_check_read+0x11/0x20 [ 429.735471][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 429.740398][ T26] kthread+0x346/0x3d0 [ 429.744451][ T26] ? hungtask_pm_notify+0x50/0x50 [ 429.749468][ T26] ? kthread_blkcg+0xd0/0xd0 [ 429.754044][ T26] ret_from_fork+0x1f/0x30 [ 429.758501][ T26] Sending NMI from CPU 0 to CPUs 1: [ 429.763973][ C1] NMI backtrace for cpu 1 [ 429.763978][ C1] CPU: 1 PID: 367 Comm: syz.2.17 Not tainted 5.10.240-syzkaller #0 [ 429.763983][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 [ 429.763986][ C1] RIP: 0010:get_signal+0x1182/0x12e0 [ 429.763996][ C1] Code: 7d d0 e9 65 fe ff ff e8 0c f7 25 00 e9 a3 00 00 00 e8 02 f7 25 00 45 31 ed e9 8d 00 00 00 ba 20 00 00 00 48 8b bd 78 ff ff ff <4c> 89 fe e8 36 e9 5f 00 49 8d 5f 08 48 89 d8 48 c1 e8 03 48 b9 00 [ 429.763999][ C1] RSP: 0018:ffffc90001997c08 EFLAGS: 00000016 [ 429.764007][ C1] RAX: 0000000000000002 RBX: 00007fa9f7add9b0 RCX: 0000000000000007 [ 429.764011][ C1] RDX: 0000000000000020 RSI: ffffffff862e55d0 RDI: ffffc90001997e20 [ 429.764015][ C1] RBP: ffffc90001997cf0 R08: ffff88810c09a780 R09: 0000000000000002 [ 429.764019][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: 1ffff11021b18044 [ 429.764023][ C1] R13: 0000000000000011 R14: 0000000000000010 R15: ffff88810d8c0220 [ 429.764028][ C1] FS: 00005555568aa500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 429.764032][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 429.764036][ C1] CR2: 0000000000000000 CR3: 000000012560d000 CR4: 00000000003506a0 [ 429.764040][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 429.764044][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 429.764046][ C1] Call Trace: [ 429.764050][ C1] arch_do_signal_or_restart+0xbf/0x10f0 [ 429.764053][ C1] ? bpf_do_trace_printk+0x240/0x240 [ 429.764056][ C1] ? KSTK_ESP+0x60/0x60 [ 429.764059][ C1] ? __ia32_sys_rt_sigreturn+0x6c0/0x6c0 [ 429.764062][ C1] ? __bpf_trace_sys_enter+0x62/0x70 [ 429.764065][ C1] exit_to_user_mode_loop+0xa2/0xe0 [ 429.764068][ C1] syscall_exit_to_user_mode+0x68/0x90 [ 429.764071][ C1] do_syscall_64+0x3d/0x40 [ 429.764074][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 429.764076][ C1] RIP: 0033:0x7fa9f7c1ebe9 [ 429.764085][ C1] Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 [ 429.764089][ C1] RSP: 002b:00007ffdbc4f7b08 EFLAGS: 00000246 [ 429.764095][ C1] RAX: 0000000000000000 RBX: 00007fa9f7e45fa8 RCX: 00007fa9f7c1ebe9 [ 429.764099][ C1] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fa9f7e45fac [ 429.764103][ C1] RBP: 0000000000000000 R08: 000821d4945e7af7 R09: 00000007bc4f7dff [ 429.764107][ C1] R10: 0000000000000005 R11: 0000000000000246 R12: 00007fa9f7e45fac [ 429.764111][ C1] R13: 00007fa9f7e45fa0 R14: 0000000000000095 R15: 0000000000000003 [ 453.069679][ T26] INFO: task kworker/u4:2:49 blocked for more than 188 seconds. [ 453.077337][ T26] Not tainted 5.10.240-syzkaller #0 [ 453.299602][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 453.308303][ T26] task:kworker/u4:2 state:D stack: 0 pid: 49 ppid: 2 flags:0x10004000 [ 453.769612][ T26] Workqueue: netns cleanup_net [ 453.774402][ T26] Call Trace: [ 453.777685][ T26] __schedule+0xb47/0x1310 [ 454.109649][ T26] ? release_firmware_map_entry+0x190/0x190 [ 454.115569][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 454.389616][ T26] ? __kasan_check_write+0x14/0x20 [ 454.394769][ T26] ? kthread_data+0x50/0xc0 [ 454.399357][ T26] ? wq_worker_sleeping+0x60/0x200 [ 454.749652][ T26] schedule+0x13c/0x1d0 [ 454.753840][ T26] schedule_preempt_disabled+0x13/0x20 [ 454.759288][ T26] __mutex_lock+0x6c0/0xc50 [ 455.119638][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 455.126439][ T26] ? mutex_unlock+0x1c/0x40 [ 455.449685][ T26] __mutex_lock_slowpath+0xe/0x10 [ 455.454742][ T26] mutex_lock+0xcf/0xe0 [ 455.458895][ T26] ? mutex_trylock+0xa0/0xa0 [ 455.819646][ T26] rcu_barrier+0x46/0x400 [ 455.824008][ T26] l2tp_exit_net+0x135/0x1d0 [ 455.828581][ T26] ? pde_put+0x14e/0x1a0 [ 456.149625][ T26] ? l2tp_init_net+0x110/0x110 [ 456.154428][ T26] cleanup_net+0x586/0xb70 [ 456.158835][ T26] ? __kasan_check_write+0x14/0x20 [ 456.529615][ T26] ? ops_init+0x4a0/0x4a0 [ 456.533971][ T26] ? read_word_at_a_time+0x12/0x20 [ 456.539075][ T26] ? strscpy+0x9b/0x290 [ 456.889609][ T26] process_one_work+0x6e1/0xba0 [ 456.894488][ T26] worker_thread+0xa6a/0x13b0 [ 456.899154][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 457.279640][ T26] kthread+0x346/0x3d0 [ 457.283742][ T26] ? worker_clr_flags+0x190/0x190 [ 457.288759][ T26] ? kthread_blkcg+0xd0/0xd0 [ 457.639638][ T26] ret_from_fork+0x1f/0x30 [ 457.759633][ T26] INFO: task jbd2/sda1-8:58 blocked for more than 151 seconds. [ 457.767199][ T26] Not tainted 5.10.240-syzkaller #0 [ 458.109599][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 458.118296][ T26] task:jbd2/sda1-8 state:D stack: 0 pid: 58 ppid: 2 flags:0x10004000 [ 458.589600][ T26] Call Trace: [ 458.592927][ T26] __schedule+0xb47/0x1310 [ 458.597346][ T26] ? release_firmware_map_entry+0x190/0x190 [ 458.949637][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 458.955134][ T26] ? _raw_spin_lock+0xe0/0xe0 [ 459.219619][ T26] ? guard_bio_eod+0x11e/0x190 [ 459.224416][ T26] schedule+0x13c/0x1d0 [ 459.228561][ T26] io_schedule+0x84/0xe0 [ 459.559633][ T26] bit_wait_io+0x13/0xd0 [ 459.563903][ T26] out_of_line_wait_on_bit+0x15a/0x200 [ 459.569392][ T26] ? bit_wait+0xd0/0xd0 [ 459.909639][ T26] ? __wait_on_bit+0x180/0x180 [ 459.914433][ T26] ? bit_waitqueue+0x30/0x30 [ 459.919015][ T26] ? _raw_write_trylock+0x140/0x140 [ 460.319639][ T26] __wait_on_buffer+0x77/0x80 [ 460.324348][ T26] jbd2_journal_commit_transaction+0x36f2/0x5830 [ 460.619639][ T26] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0 [ 460.626427][ T26] ? compat_start_thread+0x80/0x80 [ 460.929640][ T26] ? psi_task_change+0x1fe/0x330 [ 460.934609][ T26] ? __kasan_check_write+0x14/0x20 [ 461.179617][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 461.185132][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 461.479653][ T26] ? _raw_spin_lock+0xe0/0xe0 [ 461.484467][ T26] ? detach_if_pending+0xf4/0x300 [ 461.489477][ T26] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 461.879614][ T26] ? del_timer_sync+0x144/0x1a0 [ 461.884497][ T26] kjournald2+0x44c/0x860 [ 461.888822][ T26] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 462.249646][ T26] ? io_schedule+0xe0/0xe0 [ 462.254092][ T26] ? __kasan_check_read+0x11/0x20 [ 462.259548][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 462.659635][ T26] kthread+0x346/0x3d0 [ 462.663734][ T26] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 462.669019][ T26] ? kthread_blkcg+0xd0/0xd0 [ 462.999611][ T26] ret_from_fork+0x1f/0x30 [ 463.156507][ T26] INFO: task kworker/1:14:365 blocked for more than 198 seconds. [ 463.359629][ T26] Not tainted 5.10.240-syzkaller #0 [ 463.365362][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 463.709606][ T26] task:kworker/1:14 state:D stack: 0 pid: 365 ppid: 2 flags:0x10004000 [ 463.718835][ T26] Workqueue: events fqdir_work_fn [ 464.099631][ T26] Call Trace: [ 464.102956][ T26] __schedule+0xb47/0x1310 [ 464.107359][ T26] ? release_firmware_map_entry+0x190/0x190 [ 464.449611][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 464.454753][ T26] ? __kasan_check_write+0x14/0x20 [ 464.739614][ T26] ? _raw_spin_unlock_irq+0x4e/0x70 [ 464.744838][ T26] ? wq_worker_sleeping+0x196/0x200 [ 465.019613][ T26] schedule+0x13c/0x1d0 [ 465.023799][ T26] schedule_preempt_disabled+0x13/0x20 [ 465.029240][ T26] __mutex_lock+0x6c0/0xc50 [ 465.349634][ T26] ? debug_smp_processor_id+0x17/0x20 [ 465.355054][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 465.689626][ T26] ? slab_free_freelist_hook+0xc5/0x190 [ 465.695205][ T26] ? kvfree+0x35/0x40 [ 465.699173][ T26] __mutex_lock_slowpath+0xe/0x10 [ 466.049620][ T26] mutex_lock+0xcf/0xe0 [ 466.053809][ T26] ? mutex_trylock+0xa0/0xa0 [ 466.058384][ T26] ? inet_frag_pull_head+0x180/0x180 [ 466.459613][ T26] rcu_barrier+0x46/0x400 [ 466.463978][ T26] fqdir_work_fn+0x57/0xe0 [ 466.468404][ T26] process_one_work+0x6e1/0xba0 [ 466.809641][ T26] worker_thread+0xa6a/0x13b0 [ 466.814350][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 467.079631][ T26] ? __kasan_check_read+0x11/0x20 [ 467.084697][ T26] kthread+0x346/0x3d0 [ 467.088758][ T26] ? worker_clr_flags+0x190/0x190 [ 467.429616][ T26] ? kthread_blkcg+0xd0/0xd0 [ 467.434237][ T26] ret_from_fork+0x1f/0x30 [ 467.689605][ T26] NMI backtrace for cpu 0 [ 467.693971][ T26] CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.10.240-syzkaller #0 [ 467.701930][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 [ 467.711969][ T26] Call Trace: [ 467.715250][ T26] __dump_stack+0x21/0x24 [ 467.719563][ T26] dump_stack_lvl+0x169/0x1d8 [ 467.724222][ T26] ? show_regs_print_info+0x18/0x18 [ 467.729401][ T26] ? sched_show_task+0x324/0x4a0 [ 467.734326][ T26] ? __rcu_read_unlock+0xa0/0xa0 [ 467.739265][ T26] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 467.745331][ T26] dump_stack+0x15/0x1c [ 467.749477][ T26] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 467.755446][ T26] arch_trigger_cpumask_backtrace+0x10/0x20 [ 467.761324][ T26] watchdog+0xe2e/0xf70 [ 467.765466][ T26] ? hungtask_pm_notify+0x50/0x50 [ 467.770476][ T26] ? __kasan_check_read+0x11/0x20 [ 467.775483][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 467.780407][ T26] kthread+0x346/0x3d0 [ 467.784470][ T26] ? hungtask_pm_notify+0x50/0x50 [ 467.789477][ T26] ? kthread_blkcg+0xd0/0xd0 [ 467.794141][ T26] ret_from_fork+0x1f/0x30 [ 467.798606][ T26] Sending NMI from CPU 0 to CPUs 1: [ 467.804021][ C1] NMI backtrace for cpu 1 [ 467.804026][ C1] CPU: 1 PID: 367 Comm: syz.2.17 Not tainted 5.10.240-syzkaller #0 [ 467.804031][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 [ 467.804035][ C1] RIP: 0010:fpregs_mark_activate+0x0/0x160 [ 467.804044][ C1] Code: 5d c3 89 da 80 e2 07 80 c2 03 38 ca 7c d5 48 89 df 41 89 c6 e8 91 23 75 00 44 89 f0 eb c5 e8 27 34 3b 00 eb a3 0f 1f 44 00 00 <55> 48 89 e5 41 57 41 56 41 54 53 49 bc 00 00 00 00 00 fc ff df e8 [ 467.804048][ C1] RSP: 0018:ffffc90001997cb0 EFLAGS: 00000293 [ 467.804056][ C1] RAX: ffffffff81286756 RBX: 0000000000000000 RCX: ffff88810c09a780 [ 467.804060][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 467.804064][ C1] RBP: ffffc90001997cd8 R08: 0000000000000000 R09: fffffbfff0d8c9c6 [ 467.804068][ C1] R10: fffffbfff0d8c9c6 R11: 1ffffffff0d8c9c0 R12: 0000000000000001 [ 467.804072][ C1] R13: dffffc0000000000 R14: 0000000000000001 R15: dffffc0000000000 [ 467.804077][ C1] FS: 00005555568aa500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 467.804081][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 467.804085][ C1] CR2: 0000000000000000 CR3: 000000012560d000 CR4: 00000000003506a0 [ 467.804089][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 467.804093][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 467.804095][ C1] Call Trace: [ 467.804098][ C1] ? fpu__clear+0x227/0x2d0 [ 467.804101][ C1] fpu__clear_user_states+0x1a/0x20 [ 467.804104][ C1] arch_do_signal_or_restart+0xcda/0x10f0 [ 467.804107][ C1] ? __ia32_sys_rt_sigreturn+0x6c0/0x6c0 [ 467.804110][ C1] ? __bpf_trace_sys_enter+0x62/0x70 [ 467.804113][ C1] exit_to_user_mode_loop+0xa2/0xe0 [ 467.804117][ C1] syscall_exit_to_user_mode+0x68/0x90 [ 467.804119][ C1] do_syscall_64+0x3d/0x40 [ 467.804123][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 467.804125][ C1] RIP: 0033:0x7fa9f7add9b0 [ 467.804134][ C1] Code: 44 24 20 0f 29 44 24 30 0f 29 44 24 40 48 8b 44 24 08 ff d0 48 83 c4 50 31 c0 5b 5d 41 5c 41 5d 41 5e c3 0f 1f 80 00 00 00 00 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 c3 66 66 2e 0f 1f [ 467.804137][ C1] RSP: 002b:00007ffdbc4f7578 EFLAGS: 00000246 [ 467.804143][ C1] RAX: 0000000000000000 RBX: 00007fa9f7e45fa8 RCX: 00007fa9f7c1ebe9 [ 467.804147][ C1] RDX: 00007ffdbc4f7580 RSI: 00007ffdbc4f76b0 RDI: 0000000000000011 [ 467.804151][ C1] RBP: 0000000000000000 R08: 000821d4945e7af7 R09: 00000007bc4f7dff [ 467.804156][ C1] R10: 0000000000000005 R11: 0000000000000246 R12: 00007fa9f7e45fac [ 467.804160][ C1] R13: 00007fa9f7e45fa0 R14: 0000000000000095 R15: 0000000000000003 [ 491.469948][ T26] INFO: task kworker/u4:2:49 blocked for more than 226 seconds. [ 491.477640][ T26] Not tainted 5.10.240-syzkaller #0 [ 491.669609][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 491.678307][ T26] task:kworker/u4:2 state:D stack: 0 pid: 49 ppid: 2 flags:0x10004000 [ 492.129668][ T26] Workqueue: netns cleanup_net [ 492.134462][ T26] Call Trace: [ 492.137822][ T26] __schedule+0xb47/0x1310 [ 492.459623][ T26] ? release_firmware_map_entry+0x190/0x190 [ 492.465658][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 492.769693][ T26] ? __kasan_check_write+0x14/0x20 [ 492.774874][ T26] ? kthread_data+0x50/0xc0 [ 492.779403][ T26] ? wq_worker_sleeping+0x60/0x200 [ 493.139629][ T26] schedule+0x13c/0x1d0 [ 493.143818][ T26] schedule_preempt_disabled+0x13/0x20 [ 493.149262][ T26] __mutex_lock+0x6c0/0xc50 [ 493.529647][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 493.536444][ T26] ? mutex_unlock+0x1c/0x40 [ 493.839620][ T26] __mutex_lock_slowpath+0xe/0x10 [ 493.844667][ T26] mutex_lock+0xcf/0xe0 [ 493.848805][ T26] ? mutex_trylock+0xa0/0xa0 [ 494.189733][ T26] rcu_barrier+0x46/0x400 [ 494.194158][ T26] l2tp_exit_net+0x135/0x1d0 [ 494.198751][ T26] ? pde_put+0x14e/0x1a0 [ 494.539617][ T26] ? l2tp_init_net+0x110/0x110 [ 494.544410][ T26] cleanup_net+0x586/0xb70 [ 494.548812][ T26] ? __kasan_check_write+0x14/0x20 [ 494.939616][ T26] ? ops_init+0x4a0/0x4a0 [ 494.943996][ T26] ? read_word_at_a_time+0x12/0x20 [ 494.949093][ T26] ? strscpy+0x9b/0x290 [ 495.279656][ T26] process_one_work+0x6e1/0xba0 [ 495.284533][ T26] worker_thread+0xa6a/0x13b0 [ 495.289196][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 495.659623][ T26] kthread+0x346/0x3d0 [ 495.663722][ T26] ? worker_clr_flags+0x190/0x190 [ 495.668731][ T26] ? kthread_blkcg+0xd0/0xd0 [ 496.049624][ T26] ret_from_fork+0x1f/0x30 [ 496.139610][ T26] INFO: task jbd2/sda1-8:58 blocked for more than 190 seconds. [ 496.147174][ T26] Not tainted 5.10.240-syzkaller #0 [ 496.499637][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 496.508337][ T26] task:jbd2/sda1-8 state:D stack: 0 pid: 58 ppid: 2 flags:0x10004000 [ 496.969606][ T26] Call Trace: [ 496.972926][ T26] __schedule+0xb47/0x1310 [ 496.977334][ T26] ? release_firmware_map_entry+0x190/0x190 [ 497.319642][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 497.325127][ T26] ? _raw_spin_lock+0xe0/0xe0 [ 497.599885][ T26] ? guard_bio_eod+0x11e/0x190 [ 497.604671][ T26] schedule+0x13c/0x1d0 [ 497.608810][ T26] io_schedule+0x84/0xe0 [ 497.949636][ T26] bit_wait_io+0x13/0xd0 [ 497.953896][ T26] out_of_line_wait_on_bit+0x15a/0x200 [ 497.959337][ T26] ? bit_wait+0xd0/0xd0 [ 498.289640][ T26] ? __wait_on_bit+0x180/0x180 [ 498.294513][ T26] ? bit_waitqueue+0x30/0x30 [ 498.299276][ T26] ? _raw_write_trylock+0x140/0x140 [ 498.699749][ T26] __wait_on_buffer+0x77/0x80 [ 498.704516][ T26] jbd2_journal_commit_transaction+0x36f2/0x5830 [ 498.999652][ T26] ? jbd2_journal_finish_inode_data_buffers+0xb0/0xb0 [ 499.006504][ T26] ? compat_start_thread+0x80/0x80 [ 499.329622][ T26] ? psi_task_change+0x1fe/0x330 [ 499.334595][ T26] ? __kasan_check_write+0x14/0x20 [ 499.549642][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 499.555125][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 499.859617][ T26] ? _raw_spin_lock+0xe0/0xe0 [ 499.864390][ T26] ? detach_if_pending+0xf4/0x300 [ 499.869422][ T26] ? _raw_spin_unlock_irqrestore+0x5b/0x80 [ 500.269653][ T26] ? del_timer_sync+0x144/0x1a0 [ 500.274536][ T26] kjournald2+0x44c/0x860 [ 500.278858][ T26] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 500.639635][ T26] ? io_schedule+0xe0/0xe0 [ 500.644074][ T26] ? __kasan_check_read+0x11/0x20 [ 500.649095][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 501.029616][ T26] kthread+0x346/0x3d0 [ 501.033707][ T26] ? jbd2_seq_info_show+0x5c0/0x5c0 [ 501.038890][ T26] ? kthread_blkcg+0xd0/0xd0 [ 501.399639][ T26] ret_from_fork+0x1f/0x30 [ 501.529632][ T26] INFO: task kworker/1:14:365 blocked for more than 236 seconds. [ 501.537365][ T26] Not tainted 5.10.240-syzkaller #0 [ 501.889604][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 501.898301][ T26] task:kworker/1:14 state:D stack: 0 pid: 365 ppid: 2 flags:0x10004000 [ 502.349663][ T26] Workqueue: events fqdir_work_fn [ 502.354711][ T26] Call Trace: [ 502.358001][ T26] __schedule+0xb47/0x1310 [ 502.659650][ T26] ? release_firmware_map_entry+0x190/0x190 [ 502.665582][ T26] ? __mutex_add_waiter+0xc7/0x270 [ 502.979621][ T26] ? __kasan_check_write+0x14/0x20 [ 502.984758][ T26] ? _raw_spin_unlock_irq+0x4e/0x70 [ 503.249639][ T26] ? wq_worker_sleeping+0x196/0x200 [ 503.254862][ T26] schedule+0x13c/0x1d0 [ 503.259013][ T26] schedule_preempt_disabled+0x13/0x20 [ 503.599644][ T26] __mutex_lock+0x6c0/0xc50 [ 503.604196][ T26] ? debug_smp_processor_id+0x17/0x20 [ 503.609558][ T26] ? __ww_mutex_lock_interruptible_slowpath+0x20/0x20 [ 504.059612][ T26] ? slab_free_freelist_hook+0xc5/0x190 [ 504.065254][ T26] ? kvfree+0x35/0x40 [ 504.069233][ T26] __mutex_lock_slowpath+0xe/0x10 [ 504.429642][ T26] mutex_lock+0xcf/0xe0 [ 504.433836][ T26] ? mutex_trylock+0xa0/0xa0 [ 504.438507][ T26] ? inet_frag_pull_head+0x180/0x180 [ 504.829619][ T26] rcu_barrier+0x46/0x400 [ 504.833983][ T26] fqdir_work_fn+0x57/0xe0 [ 504.838393][ T26] process_one_work+0x6e1/0xba0 [ 505.159632][ T26] worker_thread+0xa6a/0x13b0 [ 505.164342][ T26] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 505.459617][ T26] ? __kasan_check_read+0x11/0x20 [ 505.464675][ T26] kthread+0x346/0x3d0 [ 505.468736][ T26] ? worker_clr_flags+0x190/0x190 [ 505.809636][ T26] ? kthread_blkcg+0xd0/0xd0 [ 505.814280][ T26] ret_from_fork+0x1f/0x30 [ 506.079606][ T26] NMI backtrace for cpu 0 [ 506.084050][ T26] CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.10.240-syzkaller #0 [ 506.092008][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 [ 506.102058][ T26] Call Trace: [ 506.105626][ T26] __dump_stack+0x21/0x24 [ 506.109949][ T26] dump_stack_lvl+0x169/0x1d8 [ 506.114614][ T26] ? show_regs_print_info+0x18/0x18 [ 506.119853][ T26] ? sched_show_task+0x324/0x4a0 [ 506.124781][ T26] ? __rcu_read_unlock+0xa0/0xa0 [ 506.129740][ T26] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 506.135796][ T26] dump_stack+0x15/0x1c [ 506.139939][ T26] nmi_trigger_cpumask_backtrace+0x27f/0x2c0 [ 506.145903][ T26] arch_trigger_cpumask_backtrace+0x10/0x20 [ 506.151848][ T26] watchdog+0xe2e/0xf70 [ 506.155992][ T26] ? hungtask_pm_notify+0x50/0x50 [ 506.161000][ T26] ? __kasan_check_read+0x11/0x20 [ 506.166004][ T26] ? __kthread_parkme+0xb9/0x1c0 [ 506.170925][ T26] kthread+0x346/0x3d0 [ 506.174979][ T26] ? hungtask_pm_notify+0x50/0x50 [ 506.179986][ T26] ? kthread_blkcg+0xd0/0xd0 [ 506.184561][ T26] ret_from_fork+0x1f/0x30 [ 506.189030][ T26] Sending NMI from CPU 0 to CPUs 1: [ 506.194820][ C1] NMI backtrace for cpu 1 [ 506.194826][ C1] CPU: 1 PID: 367 Comm: syz.2.17 Not tainted 5.10.240-syzkaller #0 [ 506.194831][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/14/2025 [ 506.194834][ C1] RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x10/0x90 [ 506.194844][ C1] Code: 18 4a 89 44 01 20 48 ff c2 48 89 11 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 55 48 89 e5 48 8b 45 08 65 48 8b 15 50 c9 9e 7e <65> 8b 0d 55 c9 9e 7e f7 c1 00 01 ff 00 74 11 f7 c1 00 01 00 00 74 [ 506.194847][ C1] RSP: 0018:ffffc90000170c10 EFLAGS: 00000046 [ 506.194855][ C1] RAX: ffffffff813d7d64 RBX: 0000000000000011 RCX: ffff88810c09a780 [ 506.194859][ C1] RDX: ffff88810c09a780 RSI: 0000000000000011 RDI: 0000000000000012 [ 506.194863][ C1] RBP: ffffc90000170c10 R08: dffffc0000000000 R09: ffffed1021b18001 [ 506.194867][ C1] R10: ffffed1021b18001 R11: 1ffff11021b18000 R12: ffff88810c09a780 [ 506.194871][ C1] R13: dffffc0000000000 R14: 0000000000000010 R15: ffff88810d866374 [ 506.194876][ C1] FS: 00005555568aa500(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 506.194880][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 506.194884][ C1] CR2: 0000000000000000 CR3: 000000012560d000 CR4: 00000000003506a0 [ 506.194888][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 506.194892][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 506.194894][ C1] Call Trace: [ 506.194896][ C1] [ 506.194899][ C1] prepare_signal+0x204/0x970 [ 506.194902][ C1] __send_signal+0xa8/0xb80 [ 506.194905][ C1] ? _raw_spin_lock_irqsave+0xb0/0x110 [ 506.194908][ C1] send_signal+0x479/0x5b0 [ 506.194910][ C1] do_send_sig_info+0xd6/0x210 [ 506.194913][ C1] group_send_sig_info+0x111/0x2a0 [ 506.194916][ C1] ? __lock_task_sighand+0x100/0x100 [ 506.194919][ C1] do_bpf_send_signal+0x82/0x150 [ 506.194922][ C1] irq_work_run_list+0x179/0x260 [ 506.194925][ C1] ? irq_work_run+0xf0/0xf0 [ 506.194927][ C1] irq_work_run+0x6a/0xf0 [ 506.194930][ C1] __sysvec_irq_work+0x66/0x1b0 [ 506.194933][ C1] asm_call_irq_on_stack+0xf/0x20 [ 506.194935][ C1] [ 506.194938][ C1] sysvec_irq_work+0x85/0xd0 [ 506.194941][ C1] asm_sysvec_irq_work+0x12/0x20 [ 506.194949][ C1] RIP: 0010:native_apic_msr_write+0x39/0x50 [ 506.194958][ C1] Code: 74 05 83 ff 30 75 12 5d c3 81 ff d0 00 00 00 74 f6 81 ff e0 00 00 00 74 ee c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <0f> 1f 44 00 00 eb d6 89 f6 31 d2 e8 87 93 27 01 5d c3 0f 1f 44 00 [ 506.194962][ C1] RSP: 0018:ffffc90001997c20 EFLAGS: 00000246 [ 506.194968][ C1] RAX: 00000000000000f6 RBX: 00000000000000f6 RCX: 000000000000083f [ 506.194972][ C1] RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f [ 506.194976][ C1] RBP: ffffc90001997c20 R08: dffffc0000000000 R09: ffffed103ee2a5f7 [ 506.194980][ C1] R10: ffffed103ee2a5f7 R11: 1ffff1103ee2a5f6 R12: 0000000000000000 [ 506.194984][ C1] R13: dffffc0000000001 R14: ffffffff859c2998 R15: dffffc0000000000 [ 506.194987][ C1] x2apic_send_IPI_self+0x5e/0x70 [ 506.194990][ C1] arch_irq_work_raise+0x86/0xd0 [ 506.194993][ C1] __irq_work_queue_local+0x115/0x190 [ 506.194996][ C1] irq_work_queue+0x9e/0x150 [ 506.194999][ C1] bpf_send_signal_common+0x2b2/0x420 [ 506.195002][ C1] ? bpf_do_trace_printk+0x240/0x240 [ 506.195005][ C1] bpf_send_signal+0x19/0x20 [ 506.195008][ C1] bpf_prog_7ba5217f62dcd359+0x38/0xee8 [ 506.195010][ C1] bpf_trace_run2+0xb3/0x200 [ 506.195013][ C1] ? bpf_trace_run1+0x200/0x200 [ 506.195016][ C1] __bpf_trace_sys_enter+0x62/0x70 [ 506.195019][ C1] trace_sys_enter+0x40/0x50 [ 506.195022][ C1] syscall_trace_enter+0x108/0x170 [ 506.195025][ C1] syscall_enter_from_user_mode+0x20/0x30 [ 506.195028][ C1] do_syscall_64+0x13/0x40 [ 506.195031][ C1] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 506.195034][ C1] RIP: 0033:0x7fa9f7bbade9 [ 506.195043][ C1] Code: 64 c7 00 16 00 00 00 b8 ff ff ff ff c3 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 04 25 [ 506.195046][ C1] RSP: 002b:00007ffdbc4f7580 EFLAGS: 00000246 ORIG_RAX: 000000000000000f [ 506.195054][ C1] RAX: ffffffffffffffda RBX: 00007fa9f7e45fa8 RCX: 00007fa9f7bbade9 [ 506.195058][ C1] RDX: 00007ffdbc4f7580 RSI: 00007ffdbc4f76b0 RDI: 0000000000000011 [ 506.195062][ C1] RBP: 0000000000000000 R08: 000821d4945e7af7 R09: 00000007bc4f7dff [ 506.195066][ C1] R10: 0000000000000005 R11: 0000000000000246 R12: 00007fa9f7e45fac [ 506.195071][ C1] R13: 00007fa9f7e45fa0 R14: 0000000000000095 R15: 0000000000000003