Warning: Permanently added '10.128.0.57' (ED25519) to the list of known hosts. [ 121.715045][ T4310] cgroup: Unknown subsys name 'net' [ 121.939583][ T4310] cgroup: Unknown subsys name 'rlimit' executing program executing program [ 122.294675][ T4324] loop2: detected capacity change from 0 to 128 executing program [ 122.301002][ T4325] loop4: detected capacity change from 0 to 128 [ 122.306295][ T4324] VFS: Found a Xenix FS (block size = 1024) on device loop2 executing program [ 122.313485][ T4328] loop1: detected capacity change from 0 to 128 [ 122.315578][ T4324] syz-executor231: attempt to access beyond end of device [ 122.315578][ T4324] loop2: rw=0, sector=6491536, nr_sectors = 2 limit=128 [ 122.319038][ T4324] Buffer I/O error on dev loop2, logical block 3245768, async page read [ 122.321151][ T4324] syz-executor231: attempt to access beyond end of device [ 122.321151][ T4324] loop2: rw=0, sector=17666806, nr_sectors = 2 limit=128 executing program [ 122.328762][ T4329] loop3: detected capacity change from 0 to 128 [ 122.330110][ T4331] loop0: detected capacity change from 0 to 128 [ 122.332711][ T4325] VFS: Found a Xenix FS (block size = 1024) on device loop4 [ 122.336960][ T4325] syz-executor231: attempt to access beyond end of device [ 122.336960][ T4325] loop4: rw=0, sector=6491536, nr_sectors = 2 limit=128 [ 122.340619][ T4325] Buffer I/O error on dev loop4, logical block 3245768, async page read [ 122.342747][ T4325] syz-executor231: attempt to access beyond end of device [ 122.342747][ T4325] loop4: rw=0, sector=17666806, nr_sectors = 2 limit=128 [ 122.344434][ T4329] VFS: Found a Xenix FS (block size = 1024) on device loop3 [ 122.347615][ T4328] VFS: Found a Xenix FS (block size = 1024) on device loop1 [ 122.349491][ T4329] syz-executor231: attempt to access beyond end of device [ 122.349491][ T4329] loop3: rw=0, sector=6491536, nr_sectors = 2 limit=128 [ 122.351387][ T4328] syz-executor231: attempt to access beyond end of device [ 122.351387][ T4328] loop1: rw=0, sector=6491536, nr_sectors = 2 limit=128 [ 122.353370][ T4329] Buffer I/O error on dev loop3, logical block 3245768, async page read [ 122.357952][ T4331] VFS: Found a Xenix FS (block size = 1024) on device loop0 [ 122.359446][ T4324] Buffer I/O error on dev loop2, logical block 8833403, async page read [ 122.362090][ T4331] syz-executor231: attempt to access beyond end of device [ 122.362090][ T4331] loop0: rw=0, sector=6491536, nr_sectors = 2 limit=128 [ 122.366882][ T4328] Buffer I/O error on dev loop1, logical block 3245768, async page read [ 122.369191][ T4325] Buffer I/O error on dev loop4, logical block 8833403, async page read [ 122.371237][ T4325] syz-executor231: attempt to access beyond end of device [ 122.371237][ T4325] loop4: rw=0, sector=26539618, nr_sectors = 2 limit=128 [ 122.374102][ T4324] syz-executor231: attempt to access beyond end of device [ 122.374102][ T4324] loop2: rw=0, sector=26539618, nr_sectors = 2 limit=128 [ 122.374679][ T4328] syz-executor231: attempt to access beyond end of device [ 122.374679][ T4328] loop1: rw=0, sector=17666806, nr_sectors = 2 limit=128 [ 122.378478][ T4324] Buffer I/O error on dev loop2, logical block 13269809, async page read [ 122.382153][ T4331] Buffer I/O error on dev loop0, logical block 3245768, async page read [ 122.386053][ T4331] Buffer I/O error on dev loop0, logical block 8833403, async page read [ 122.388184][ T4331] Buffer I/O error on dev loop0, logical block 13269809, async page read [ 284.643819][ T28] INFO: task syz-executor231:4333 blocked for more than 143 seconds. [ 284.646016][ T28] Not tainted 6.1.136-syzkaller #0 [ 284.647421][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.649635][ T28] task:syz-executor231 state:D stack:0 pid:4333 ppid:4318 flags:0x00000005 [ 284.651959][ T28] Call trace: [ 284.652818][ T28] __switch_to+0x2f4/0x568 [ 284.663663][ T28] __schedule+0xdd4/0x1b2c [ 284.664955][ T28] schedule+0xc4/0x170 [ 284.666000][ T28] rwsem_down_write_slowpath+0xb74/0x125c [ 284.667428][ T28] down_write+0x84/0x88 [ 284.668520][ T28] path_openat+0x5e4/0x2680 [ 284.669687][ T28] do_filp_open+0x174/0x344 [ 284.670853][ T28] do_sys_openat2+0x128/0x3d8 [ 284.672094][ T28] __arm64_sys_openat+0x120/0x154 [ 284.673411][ T28] invoke_syscall+0x98/0x2bc [ 284.693670][ T28] el0_svc_common+0x138/0x258 [ 284.694933][ T28] do_el0_svc+0x58/0x13c [ 284.696015][ T28] el0_svc+0x58/0x138 [ 284.697096][ T28] el0t_64_sync_handler+0x84/0xf0 [ 284.698348][ T28] el0t_64_sync+0x18c/0x190 [ 284.699469][ T28] INFO: task syz-executor231:4332 blocked for more than 143 seconds. [ 284.701486][ T28] Not tainted 6.1.136-syzkaller #0 [ 284.702921][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.733677][ T28] task:syz-executor231 state:D stack:0 pid:4332 ppid:4319 flags:0x00000005 [ 284.736067][ T28] Call trace: [ 284.736908][ T28] __switch_to+0x2f4/0x568 [ 284.738032][ T28] __schedule+0xdd4/0x1b2c [ 284.739171][ T28] schedule+0xc4/0x170 [ 284.740192][ T28] rwsem_down_write_slowpath+0xb74/0x125c [ 284.741698][ T28] down_write+0x84/0x88 [ 284.742736][ T28] path_openat+0x5e4/0x2680 [ 284.763768][ T28] do_filp_open+0x174/0x344 [ 284.765011][ T28] do_sys_openat2+0x128/0x3d8 [ 284.766206][ T28] __arm64_sys_openat+0x120/0x154 [ 284.767448][ T28] invoke_syscall+0x98/0x2bc [ 284.768609][ T28] el0_svc_common+0x138/0x258 [ 284.769765][ T28] do_el0_svc+0x58/0x13c [ 284.770876][ T28] el0_svc+0x58/0x138 [ 284.772079][ T28] el0t_64_sync_handler+0x84/0xf0 [ 284.773365][ T28] el0t_64_sync+0x18c/0x190 [ 284.803680][ T28] INFO: task syz-executor231:4334 blocked for more than 143 seconds. [ 284.805802][ T28] Not tainted 6.1.136-syzkaller #0 [ 284.807239][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.809401][ T28] task:syz-executor231 state:D stack:0 pid:4334 ppid:4320 flags:0x00000005 [ 284.811746][ T28] Call trace: [ 284.812595][ T28] __switch_to+0x2f4/0x568 [ 284.833679][ T28] __schedule+0xdd4/0x1b2c [ 284.834813][ T28] schedule+0xc4/0x170 [ 284.836107][ T28] rwsem_down_write_slowpath+0xb74/0x125c [ 284.837558][ T28] down_write+0x84/0x88 [ 284.838616][ T28] path_openat+0x5e4/0x2680 [ 284.839758][ T28] do_filp_open+0x174/0x344 [ 284.840874][ T28] do_sys_openat2+0x128/0x3d8 [ 284.842060][ T28] __arm64_sys_openat+0x120/0x154 [ 284.843330][ T28] invoke_syscall+0x98/0x2bc [ 284.863660][ T28] el0_svc_common+0x138/0x258 [ 284.864905][ T28] do_el0_svc+0x58/0x13c [ 284.866024][ T28] el0_svc+0x58/0x138 [ 284.867023][ T28] el0t_64_sync_handler+0x84/0xf0 [ 284.868238][ T28] el0t_64_sync+0x18c/0x190 [ 284.869398][ T28] INFO: task syz-executor231:4335 blocked for more than 143 seconds. [ 284.871368][ T28] Not tainted 6.1.136-syzkaller #0 [ 284.872745][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.893673][ T28] task:syz-executor231 state:D stack:0 pid:4335 ppid:4317 flags:0x00000005 [ 284.896009][ T28] Call trace: [ 284.896836][ T28] __switch_to+0x2f4/0x568 [ 284.897908][ T28] __schedule+0xdd4/0x1b2c [ 284.899089][ T28] schedule+0xc4/0x170 [ 284.900031][ T28] rwsem_down_write_slowpath+0xb74/0x125c [ 284.901456][ T28] down_write+0x84/0x88 [ 284.902447][ T28] path_openat+0x5e4/0x2680 [ 284.903557][ T28] do_filp_open+0x174/0x344 [ 284.933675][ T28] do_sys_openat2+0x128/0x3d8 [ 284.934903][ T28] __arm64_sys_openat+0x120/0x154 [ 284.936151][ T28] invoke_syscall+0x98/0x2bc [ 284.937299][ T28] el0_svc_common+0x138/0x258 [ 284.938404][ T28] do_el0_svc+0x58/0x13c [ 284.939473][ T28] el0_svc+0x58/0x138 [ 284.940524][ T28] el0t_64_sync_handler+0x84/0xf0 [ 284.941808][ T28] el0t_64_sync+0x18c/0x190 [ 284.963661][ T28] INFO: task syz-executor231:4336 blocked for more than 143 seconds. [ 284.965732][ T28] Not tainted 6.1.136-syzkaller #0 [ 284.967113][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 284.969209][ T28] task:syz-executor231 state:D stack:0 pid:4336 ppid:4316 flags:0x00000005 [ 284.971505][ T28] Call trace: [ 284.972349][ T28] __switch_to+0x2f4/0x568 [ 284.973386][ T28] __schedule+0xdd4/0x1b2c [ 284.983662][ T28] schedule+0xc4/0x170 [ 284.984652][ T28] rwsem_down_write_slowpath+0xb74/0x125c [ 284.986074][ T28] down_write+0x84/0x88 [ 284.987152][ T28] path_openat+0x5e4/0x2680 [ 284.988307][ T28] do_filp_open+0x174/0x344 [ 284.989418][ T28] do_sys_openat2+0x128/0x3d8 [ 284.990540][ T28] __arm64_sys_openat+0x120/0x154 [ 284.991782][ T28] invoke_syscall+0x98/0x2bc [ 284.992886][ T28] el0_svc_common+0x138/0x258 [ 285.023657][ T28] do_el0_svc+0x58/0x13c [ 285.024727][ T28] el0_svc+0x58/0x138 [ 285.025734][ T28] el0t_64_sync_handler+0x84/0xf0 [ 285.026959][ T28] el0t_64_sync+0x18c/0x190 [ 285.028122][ T28] [ 285.028122][ T28] Showing all locks held in the system: [ 285.030125][ T28] 1 lock held by rcu_tasks_kthre/12: [ 285.031466][ T28] #0: ffff8000152476b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xbb4 [ 285.062087][ T28] 1 lock held by rcu_tasks_trace/13: [ 285.063510][ T28] #0: ffff800015247ed0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x40/0xbb4 [ 285.066684][ T28] 1 lock held by khungtaskd/28: [ 285.067881][ T28] #0: ffff800015246d40 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 285.070278][ T28] 2 locks held by getty/4053: [ 285.071462][ T28] #0: ffff0000d6927098 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 285.093686][ T28] #1: ffff80001ce502f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x2ec/0xf9c [ 285.096249][ T28] 2 locks held by syz-executor231/4325: [ 285.097579][ T28] 2 locks held by syz-executor231/4333: [ 285.099003][ T28] #0: ffff0000db178460 (sb_writers#10){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 285.101381][ T28] #1: ffff0000e1b20188 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: path_openat+0x5e4/0x2680 [ 285.123835][ T28] 2 locks held by syz-executor231/4324: [ 285.125256][ T28] 2 locks held by syz-executor231/4332: [ 285.126625][ T28] #0: ffff0000db03c460 (sb_writers#10){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 285.128942][ T28] #1: ffff0000e1ae0188 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: path_openat+0x5e4/0x2680 [ 285.131611][ T28] 2 locks held by syz-executor231/4328: [ 285.132898][ T28] 2 locks held by syz-executor231/4334: [ 285.153673][ T28] #0: ffff0000d39e4460 (sb_writers#10){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 285.156397][ T28] #1: ffff0000e1b206d0 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: path_openat+0x5e4/0x2680 [ 285.158951][ T28] 2 locks held by syz-executor231/4329: [ 285.160362][ T28] 2 locks held by syz-executor231/4335: [ 285.161730][ T28] #0: ffff0000dc23c460 (sb_writers#10){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 285.183722][ T28] #1: ffff0000e1ae06d0 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: path_openat+0x5e4/0x2680 [ 285.186385][ T28] 3 locks held by syz-executor231/4331: [ 285.187786][ T28] 2 locks held by syz-executor231/4336: [ 285.189203][ T28] #0: ffff0000d3680460 (sb_writers#10){.+.+}-{0:0}, at: mnt_want_write+0x44/0x9c [ 285.191510][ T28] #1: ffff0000e1b20c18 (&type->i_mutex_dir_key#8){+.+.}-{3:3}, at: path_openat+0x5e4/0x2680 [ 285.213693][ T28] [ 285.214354][ T28] ============================================= [ 285.214354][ T28] [ 285.216478][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 285.218146][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.136-syzkaller #0 [ 285.220290][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 [ 285.222776][ T28] Call trace: [ 285.223528][ T28] dump_backtrace+0x1c8/0x1f4 [ 285.224799][ T28] show_stack+0x2c/0x3c [ 285.225839][ T28] __dump_stack+0x30/0x40 [ 285.227021][ T28] dump_stack_lvl+0xf8/0x160 [ 285.228190][ T28] dump_stack+0x1c/0x5c [ 285.229270][ T28] panic+0x2e0/0x79c [ 285.230223][ T28] hung_task_panic+0x0/0x2c [ 285.231389][ T28] kthread+0x250/0x2d8 [ 285.232424][ T28] ret_from_fork+0x10/0x20 [ 285.233586][ T28] SMP: stopping secondary CPUs [ 285.234780][ T28] Kernel Offset: disabled [ 285.235895][ T28] CPU features: 0x080000,02070084,26017203 [ 285.237338][ T28] Memory Limit: none [ 285.549282][ T28] Rebooting in 86400 seconds..