no interfaces have a carrier Starting crond: OK Starting sshd: OK syzkaller syzkaller login: [ 34.400388][ T898] cgroup: Unknown subsys name 'net' [ 34.491187][ T898] cgroup: Unknown subsys name 'rlimit' [ 34.722356][ T898] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k Warning: Permanently added '10.128.1.139' (ED25519) to the list of known hosts. 2025/10/26 00:19:58 parsed 1 programs [ 58.300352][ T1926] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k 2025/10/26 00:20:01 executed programs: 0 2025/10/26 00:20:20 executed programs: 3 2025/10/26 00:20:37 executed programs: 4 2025/10/26 00:20:54 executed programs: 5 2025/10/26 00:21:11 executed programs: 6 2025/10/26 00:21:28 executed programs: 7 2025/10/26 00:21:45 executed programs: 8 2025/10/26 00:22:01 executed programs: 9 2025/10/26 00:22:18 executed programs: 10 2025/10/26 00:22:35 executed programs: 11 [ 218.259933][ T28] INFO: task syz.3.17:2923 blocked for more than 143 seconds. [ 218.267442][ T28] Not tainted syzkaller #0 [ 218.272411][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 218.281091][ T28] task:syz.3.17 state:D stack:13360 pid:2923 ppid:2469 flags:0x00004004 [ 218.290347][ T28] Call Trace: [ 218.293624][ T28] [ 218.296579][ T28] __schedule+0x696/0x950 [ 218.300931][ T28] schedule+0x54/0xc0 [ 218.304928][ T28] schedule_timeout+0x2d/0x190 [ 218.309706][ T28] ? wait_for_common+0xf0/0x1b0 [ 218.314603][ T28] ? do_raw_spin_unlock+0x59/0x100 [ 218.319749][ T28] wait_for_common+0xf8/0x1b0 [ 218.324534][ T28] wait_for_completion_state+0x15/0x30 [ 218.330087][ T28] do_coredump+0x387/0xe80 [ 218.334563][ T28] ? debug_check_no_obj_freed+0x22d/0x250 [ 218.340299][ T28] ? do_raw_spin_unlock+0x59/0x100 [ 218.345412][ T28] get_signal+0x63e/0x7a0 [ 218.349725][ T28] arch_do_signal_or_restart+0x89/0x260 [ 218.355347][ T28] exit_to_user_mode_loop+0x6b/0xd0 [ 218.360583][ T28] exit_to_user_mode_prepare+0x9c/0xe0 [ 218.366066][ T28] irqentry_exit_to_user_mode+0x9/0x30 [ 218.371554][ T28] asm_exc_page_fault+0x26/0x30 [ 218.376409][ T28] RIP: 0033:0x7f0a81eef927 [ 218.380863][ T28] RSP: 002b:00007fffa3be22a0 EFLAGS: 00010206 [ 218.387036][ T28] RAX: 0000000000000000 RBX: 000000000000000b RCX: 000000000000f230 [ 218.395041][ T28] RDX: 00007fffa3be22c0 RSI: 00007fffa3be23f0 RDI: 000000000000000b [ 218.403136][ T28] RBP: 00007f0a82277da0 R08: 000000000000003e R09: 0000000000745d1e [ 218.411278][ T28] R10: 00000020b89eebec R11: 00000000000011be R12: 000000000000f855 [ 218.419306][ T28] R13: 00007f0a82276090 R14: ffffffffffffffff R15: 00007fffa3ce0520 [ 218.427839][ T28] [ 218.430892][ T28] INFO: task syz.3.17:2925 blocked for more than 143 seconds. [ 218.438450][ T28] Not tainted syzkaller #0 [ 218.443509][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 218.452347][ T28] task:syz.3.17 state:D stack:13344 pid:2925 ppid:2469 flags:0x00004004 [ 218.461788][ T28] Call Trace: [ 218.465114][ T28] [ 218.468077][ T28] __schedule+0x696/0x950 [ 218.472455][ T28] schedule+0x54/0xc0 [ 218.476528][ T28] do_exit+0x10b/0xa00 [ 218.480612][ T28] do_group_exit+0x87/0xa0 [ 218.485023][ T28] get_signal+0x6f1/0x7a0 [ 218.489340][ T28] arch_do_signal_or_restart+0x89/0x260 [ 218.495035][ T28] exit_to_user_mode_loop+0x6b/0xd0 [ 218.500252][ T28] exit_to_user_mode_prepare+0x9c/0xe0 [ 218.505705][ T28] syscall_exit_to_user_mode+0x1a/0x40 [ 218.511176][ T28] do_syscall_64+0x61/0xb0 [ 218.515594][ T28] ? clear_bhb_loop+0x40/0x90 [ 218.520289][ T28] ? clear_bhb_loop+0x40/0x90 [ 218.524965][ T28] entry_SYSCALL_64_after_hwframe+0x68/0xd2 [ 218.530958][ T28] RIP: 0033:0x7f0a8202eba9 [ 218.535379][ T28] RSP: 002b:00007f0a81e7e0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 218.543897][ T28] RAX: fffffffffffffe00 RBX: 00007f0a82276098 RCX: 00007f0a8202eba9 [ 218.551969][ T28] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f0a82276098 [ 218.559964][ T28] RBP: 00007f0a82276090 R08: 0000000000000000 R09: 0000000000000000 [ 218.568385][ T28] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 218.576402][ T28] R13: 00007f0a82276128 R14: 00007fffa3ce01c0 R15: 00007fffa3ce02a8 [ 218.584748][ T28] [ 218.587796][ T28] [ 218.587796][ T28] Showing all locks held in the system: [ 218.595798][ T28] 1 lock held by khungtaskd/28: [ 218.600729][ T28] #0: ffffffff82572448 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x2e/0x100 [ 218.610646][ T28] 2 locks held by getty/848: [ 218.615221][ T28] #0: ffff8881012798a0 (&tty->ldisc_sem){....}-{0:0}, at: tty_ldisc_ref_wait+0x20/0x40 [ 218.624977][ T28] #1: ffffc900001fb2f0 (&ldata->atomic_read_lock){....}-{3:3}, at: n_tty_read+0x1a8/0x6d0 [ 218.634970][ T28] [ 218.637281][ T28] ============================================= [ 218.637281][ T28] [ 218.645700][ T28] NMI backtrace for cpu 0 [ 218.650031][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted syzkaller #0 [ 218.657207][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 218.667341][ T28] Call Trace: [ 218.670617][ T28] [ 218.673542][ T28] dump_stack_lvl+0x78/0xc0 [ 218.678027][ T28] nmi_cpu_backtrace+0x106/0x160 [ 218.682948][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 218.689211][ T28] nmi_trigger_cpumask_backtrace+0x8e/0x130 [ 218.695088][ T28] watchdog+0x5dc/0x600 [ 218.699230][ T28] ? watchdog+0xd0/0x600 [ 218.703457][ T28] ? hungtask_pm_notify+0x30/0x30 [ 218.708474][ T28] kthread+0xe3/0x100 [ 218.712454][ T28] ? kthread_blkcg+0x30/0x30 [ 218.717038][ T28] ret_from_fork+0x2f/0x40 [ 218.721445][ T28] ? kthread_blkcg+0x30/0x30 [ 218.726034][ T28] ret_from_fork_asm+0x11/0x20 [ 218.730788][ T28] [ 218.733851][ T28] Sending NMI from CPU 0 to CPUs 1: [ 218.739082][ C1] NMI backtrace for cpu 1 [ 218.739086][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 [ 218.739091][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 [ 218.739094][ C1] RIP: 0010:pv_native_safe_halt+0x13/0x20 [ 218.739103][ C1] Code: cc cc cc cc cc cc cc f3 0f 1e fa 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 66 90 0f 00 2d 51 bd 26 00 f3 0f 1e fa fb f4 cc cc cc cc cc cc cc cc cc cc cc cc 66 0f 1f 00 50 8b 37 83 e6 [ 218.739107][ C1] RSP: 0018:ffffc9000009bee0 EFLAGS: 000002c6 [ 218.739111][ C1] RAX: 37ca8414014f1800 RBX: 0000000000000001 RCX: 37ca8414014f1800 [ 218.739115][ C1] RDX: 3eb26d79c4509b53 RSI: ffffffff820f7c8e RDI: ffffffff821a34b9 [ 218.739117][ C1] RBP: ffffc9000009bef8 R08: 0000000000000000 R09: 0000000000000020 [ 218.739120][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 218.739122][ C1] R13: ffff888102271b40 R14: 0000000000000000 R15: 0000000000000000 [ 218.739125][ C1] FS: 0000000000000000(0000) GS:ffff888237d00000(0000) knlGS:0000000000000000 [ 218.739127][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 218.739129][ C1] CR2: 000055556c49f4a8 CR3: 0000000108af8000 CR4: 00000000003506e0 [ 218.739135][ C1] Call Trace: [ 218.739138][ C1] [ 218.739139][ C1] default_idle+0x13/0x20 [ 218.739144][ C1] default_idle_call+0x35/0x50 [ 218.739147][ C1] do_idle+0xda/0x250 [ 218.739151][ C1] cpu_startup_entry+0x24/0x30 [ 218.739154][ C1] start_secondary+0x82/0x90 [ 218.739159][ C1] secondary_startup_64_no_verify+0x167/0x16b [ 218.739165][ C1] [ 218.740064][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 218.743866][ T28] Kernel Offset: disabled [ 218.904919][ T28] Rebooting in 86400 seconds..