Warning: Permanently added '10.128.0.44' (ED25519) to the list of known hosts. [ 115.279026][ T4044] cgroup: Unknown subsys name 'net' [ 115.534935][ T4044] cgroup: Unknown subsys name 'rlimit' executing program executing program [ 115.936083][ T4059] loop2: detected capacity change from 0 to 128 executing program [ 115.937728][ T4058] loop0: detected capacity change from 0 to 128 executing program [ 115.959573][ T4063] loop4: detected capacity change from 0 to 128 [ 115.961958][ T4061] loop1: detected capacity change from 0 to 128 executing program [ 115.976049][ T4059] attempt to access beyond end of device [ 115.976049][ T4059] loop2: rw=0, want=6491538, limit=128 [ 115.981709][ T4058] attempt to access beyond end of device [ 115.981709][ T4058] loop0: rw=0, want=6491538, limit=128 [ 115.982246][ T4059] Buffer I/O error on dev loop2, logical block 3245768, async page read [ 115.984816][ T4058] Buffer I/O error on dev loop0, logical block 3245768, async page read [ 115.987186][ T4059] attempt to access beyond end of device [ 115.987186][ T4059] loop2: rw=0, want=17666808, limit=128 [ 115.989784][ T4065] loop3: detected capacity change from 0 to 128 [ 115.994652][ T4058] attempt to access beyond end of device [ 115.994652][ T4058] loop0: rw=0, want=17666808, limit=128 [ 115.995595][ T4061] attempt to access beyond end of device [ 115.995595][ T4061] loop1: rw=0, want=6491538, limit=128 [ 115.997658][ T4058] Buffer I/O error on dev loop0, logical block 8833403, async page read [ 116.003648][ T4058] attempt to access beyond end of device [ 116.003648][ T4058] loop0: rw=0, want=26539620, limit=128 [ 116.007110][ T4063] attempt to access beyond end of device [ 116.007110][ T4063] loop4: rw=0, want=6491538, limit=128 [ 116.007628][ T4061] Buffer I/O error on dev loop1, logical block 3245768, async page read [ 116.010319][ T4063] Buffer I/O error on dev loop4, logical block 3245768, async page read [ 116.015283][ T4058] Buffer I/O error on dev loop0, logical block 13269809, async page read [ 116.017684][ T4058] attempt to access beyond end of device [ 116.017684][ T4058] loop0: rw=0, want=16147214, limit=128 [ 116.019311][ T4061] attempt to access beyond end of device [ 116.019311][ T4061] loop1: rw=0, want=17666808, limit=128 [ 116.021021][ T4059] Buffer I/O error on dev loop2, logical block 8833403, async page read [ 116.026760][ T4058] Buffer I/O error on dev loop0, logical block 8073606, async page read [ 116.030542][ T4061] Buffer I/O error on dev loop1, logical block 8833403, async page read [ 116.030746][ T4058] attempt to access beyond end of device [ 116.030746][ T4058] loop0: rw=0, want=6491544, limit=128 [ 116.032832][ T4061] Buffer I/O error on dev loop1, logical block 13269809, async page read [ 284.659095][ T27] INFO: task syz-executor357:4066 blocked for more than 143 seconds. [ 284.661423][ T27] Not tainted 5.15.182-syzkaller #0 [ 284.662940][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.665324][ T27] task:syz-executor357 state:D stack: 0 pid: 4066 ppid: 4053 flags:0x00000005 [ 284.667779][ T27] Call trace: [ 284.668652][ T27] __switch_to+0x2f4/0x558 [ 284.688946][ T27] __schedule+0xe00/0x1c0c [ 284.690276][ T27] schedule+0x11c/0x1c8 [ 284.691434][ T27] schedule_preempt_disabled+0x18/0x2c [ 284.692963][ T27] rwsem_down_read_slowpath+0x46c/0x8bc [ 284.694436][ T27] down_read+0x100/0x390 [ 284.695645][ T27] path_openat+0x5e4/0x26e4 [ 284.696959][ T27] do_filp_open+0x164/0x330 [ 284.698122][ T27] do_sys_openat2+0x128/0x3d8 [ 284.718934][ T27] __arm64_sys_openat+0x120/0x154 [ 284.720395][ T27] invoke_syscall+0x98/0x2b8 [ 284.721633][ T27] el0_svc_common+0x138/0x258 [ 284.722936][ T27] do_el0_svc+0x58/0x14c [ 284.724071][ T27] el0_svc+0x78/0x1e0 [ 284.725146][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 284.726484][ T27] el0t_64_sync+0x1a0/0x1a4 [ 284.727668][ T27] INFO: task syz-executor357:4067 blocked for more than 143 seconds. [ 284.758937][ T27] Not tainted 5.15.182-syzkaller #0 [ 284.760511][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.762910][ T27] task:syz-executor357 state:D stack: 0 pid: 4067 ppid: 4050 flags:0x0000000d [ 284.765429][ T27] Call trace: [ 284.766301][ T27] __switch_to+0x2f4/0x558 [ 284.767520][ T27] __schedule+0xe00/0x1c0c [ 284.768744][ T27] schedule+0x11c/0x1c8 [ 284.788934][ T27] schedule_preempt_disabled+0x18/0x2c [ 284.790664][ T27] rwsem_down_read_slowpath+0x46c/0x8bc [ 284.792277][ T27] down_read+0x100/0x390 [ 284.793439][ T27] path_openat+0x5e4/0x26e4 [ 284.794604][ T27] do_filp_open+0x164/0x330 [ 284.795818][ T27] do_sys_openat2+0x128/0x3d8 [ 284.797097][ T27] __arm64_sys_openat+0x120/0x154 [ 284.798543][ T27] invoke_syscall+0x98/0x2b8 [ 284.819064][ T27] el0_svc_common+0x138/0x258 [ 284.820406][ T27] do_el0_svc+0x58/0x14c [ 284.821555][ T27] el0_svc+0x78/0x1e0 [ 284.822628][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 284.823946][ T27] el0t_64_sync+0x1a0/0x1a4 [ 284.825135][ T27] INFO: task syz-executor357:4068 blocked for more than 143 seconds. [ 284.827295][ T27] Not tainted 5.15.182-syzkaller #0 [ 284.828798][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.858953][ T27] task:syz-executor357 state:D stack: 0 pid: 4068 ppid: 4054 flags:0x00000005 [ 284.861579][ T27] Call trace: [ 284.862491][ T27] __switch_to+0x2f4/0x558 [ 284.863747][ T27] __schedule+0xe00/0x1c0c [ 284.864944][ T27] schedule+0x11c/0x1c8 [ 284.866047][ T27] schedule_preempt_disabled+0x18/0x2c [ 284.867613][ T27] rwsem_down_read_slowpath+0x46c/0x8bc [ 284.885606][ T27] down_read+0x100/0x390 [ 284.886926][ T27] path_openat+0x5e4/0x26e4 [ 284.888199][ T27] do_filp_open+0x164/0x330 [ 284.889495][ T27] do_sys_openat2+0x128/0x3d8 [ 284.890815][ T27] __arm64_sys_openat+0x120/0x154 [ 284.892231][ T27] invoke_syscall+0x98/0x2b8 [ 284.893494][ T27] el0_svc_common+0x138/0x258 [ 284.894732][ T27] do_el0_svc+0x58/0x14c [ 284.895841][ T27] el0_svc+0x78/0x1e0 [ 284.896891][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 284.898203][ T27] el0t_64_sync+0x1a0/0x1a4 [ 284.928956][ T27] INFO: task syz-executor357:4069 blocked for more than 143 seconds. [ 284.931190][ T27] Not tainted 5.15.182-syzkaller #0 [ 284.932715][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.934999][ T27] task:syz-executor357 state:D stack: 0 pid: 4069 ppid: 4052 flags:0x00000005 [ 284.937463][ T27] Call trace: [ 284.938326][ T27] __switch_to+0x2f4/0x558 [ 284.968932][ T27] __schedule+0xe00/0x1c0c [ 284.970312][ T27] schedule+0x11c/0x1c8 [ 284.971467][ T27] schedule_preempt_disabled+0x18/0x2c [ 284.972953][ T27] rwsem_down_read_slowpath+0x46c/0x8bc [ 284.974431][ T27] down_read+0x100/0x390 [ 284.975613][ T27] path_openat+0x5e4/0x26e4 [ 284.976833][ T27] do_filp_open+0x164/0x330 [ 284.978125][ T27] do_sys_openat2+0x128/0x3d8 [ 284.995403][ T27] __arm64_sys_openat+0x120/0x154 [ 284.996832][ T27] invoke_syscall+0x98/0x2b8 [ 284.998063][ T27] el0_svc_common+0x138/0x258 [ 284.999435][ T27] do_el0_svc+0x58/0x14c [ 285.000582][ T27] el0_svc+0x78/0x1e0 [ 285.001668][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 285.003037][ T27] el0t_64_sync+0x1a0/0x1a4 [ 285.004230][ T27] INFO: task syz-executor357:4070 blocked for more than 143 seconds. [ 285.006434][ T27] Not tainted 5.15.182-syzkaller #0 [ 285.007953][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 285.038970][ T27] task:syz-executor357 state:D stack: 0 pid: 4070 ppid: 4051 flags:0x00000005 [ 285.041467][ T27] Call trace: [ 285.042346][ T27] __switch_to+0x2f4/0x558 [ 285.043546][ T27] __schedule+0xe00/0x1c0c [ 285.044848][ T27] schedule+0x11c/0x1c8 [ 285.045984][ T27] schedule_preempt_disabled+0x18/0x2c [ 285.047453][ T27] rwsem_down_read_slowpath+0x46c/0x8bc [ 285.068936][ T27] down_read+0x100/0x390 [ 285.070233][ T27] path_openat+0x5e4/0x26e4 [ 285.071481][ T27] do_filp_open+0x164/0x330 [ 285.072720][ T27] do_sys_openat2+0x128/0x3d8 [ 285.073957][ T27] __arm64_sys_openat+0x120/0x154 [ 285.075354][ T27] invoke_syscall+0x98/0x2b8 [ 285.076583][ T27] el0_svc_common+0x138/0x258 [ 285.077823][ T27] do_el0_svc+0x58/0x14c [ 285.098952][ T27] el0_svc+0x78/0x1e0 [ 285.100063][ T27] el0t_64_sync_handler+0xcc/0xe4 [ 285.101512][ T27] el0t_64_sync+0x1a0/0x1a4 [ 285.102720][ T27] [ 285.102720][ T27] Showing all locks held in the system: [ 285.104847][ T27] 1 lock held by khungtaskd/27: [ 285.106174][ T27] #0: ffff8000143211e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 285.108787][ T27] 2 locks held by getty/3796: [ 285.133647][ T27] #0: ffff0000d3a0b098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x40/0x50 [ 285.136427][ T27] #1: ffff80001b7802e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2f0/0xf6c [ 285.148956][ T27] 3 locks held by syz-executor357/4059: [ 285.150516][ T27] 1 lock held by syz-executor357/4066: [ 285.151926][ T27] #0: ffff0000de3d0188 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 [ 285.154694][ T27] 3 locks held by syz-executor357/4058: [ 285.156253][ T27] 1 lock held by syz-executor357/4067: [ 285.157699][ T27] #0: ffff0000de3a4188 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 [ 285.188935][ T27] 2 locks held by syz-executor357/4061: [ 285.190593][ T27] 1 lock held by syz-executor357/4068: [ 285.192066][ T27] #0: ffff0000de3d06d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 [ 285.194884][ T27] 2 locks held by syz-executor357/4063: [ 285.196432][ T27] 1 lock held by syz-executor357/4069: [ 285.197965][ T27] #0: ffff0000de3d0c18 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 [ 285.218957][ T27] 2 locks held by syz-executor357/4065: [ 285.220549][ T27] 1 lock held by syz-executor357/4070: [ 285.222076][ T27] #0: ffff0000de3a46d0 (&type->i_mutex_dir_key#8){++++}-{3:3}, at: path_openat+0x5e4/0x26e4 [ 285.224874][ T27] [ 285.225559][ T27] ============================================= [ 285.225559][ T27] [ 285.227959][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 285.229806][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.182-syzkaller #0 [ 285.231961][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 [ 285.234696][ T27] Call trace: [ 285.235589][ T27] dump_backtrace+0x0/0x43c [ 285.236856][ T27] show_stack+0x2c/0x3c [ 285.237994][ T27] __dump_stack+0x30/0x40 [ 285.239182][ T27] dump_stack_lvl+0xf8/0x160 [ 285.240401][ T27] dump_stack+0x1c/0x5c [ 285.241486][ T27] panic+0x2e4/0x854 [ 285.242496][ T27] hung_task_panic+0x0/0x2c [ 285.243764][ T27] kthread+0x374/0x454 [ 285.244885][ T27] ret_from_fork+0x10/0x20 [ 285.246088][ T27] SMP: stopping secondary CPUs [ 285.247382][ T27] Kernel Offset: disabled [ 285.248548][ T27] CPU features: 0x8,000081c1,21302e40 [ 285.250058][ T27] Memory Limit: none [ 285.513047][ T27] Rebooting in 86400 seconds..