Warning: Permanently added '10.128.0.194' (ED25519) to the list of known hosts. executing program [ 81.466670][ T13] cfg80211: failed to load regulatory.db [ 104.504318][ T150] block nbd0: Possible stuck request ffff888021988000: control (read@8192,512B). Runtime 30 seconds [ 134.584314][ T150] block nbd0: Possible stuck request ffff888021988000: control (read@8192,512B). Runtime 60 seconds [ 164.664340][ T150] block nbd0: Possible stuck request ffff888021988000: control (read@8192,512B). Runtime 90 seconds [ 194.744245][ T150] block nbd0: Possible stuck request ffff888021988000: control (read@8192,512B). Runtime 120 seconds [ 224.824220][ T150] block nbd0: Possible stuck request ffff888021988000: control (read@8192,512B). Runtime 150 seconds [ 254.904334][ T150] block nbd0: Possible stuck request ffff888021988000: control (read@8192,512B). Runtime 180 seconds [ 284.984204][ T150] block nbd0: Possible stuck request ffff888021988000: control (read@8192,512B). Runtime 210 seconds [ 286.265489][ T27] INFO: task syz-executor304:4163 blocked for more than 143 seconds. [ 286.273718][ T27] Not tainted 5.15.175-syzkaller #0 [ 286.279520][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.288323][ T27] task:syz-executor304 state:D stack:26136 pid: 4163 ppid: 4162 flags:0x00004006 [ 286.297682][ T27] Call Trace: [ 286.300976][ T27] [ 286.303930][ T27] __schedule+0x12c4/0x45b0 [ 286.308508][ T27] ? preempt_schedule+0xd9/0xe0 [ 286.313379][ T27] ? preempt_schedule_common+0xa6/0xd0 [ 286.318908][ T27] ? preempt_schedule+0xd9/0xe0 [ 286.323808][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0 [ 286.329842][ T27] ? release_firmware_map_entry+0x190/0x190 [ 286.335790][ T27] schedule+0x11b/0x1f0 [ 286.339955][ T27] io_schedule+0x88/0x100 [ 286.344317][ T27] bit_wait_io+0xe/0xc0 [ 286.348513][ T27] __wait_on_bit+0xb9/0x180 [ 286.353062][ T27] ? bit_wait+0xc0/0xc0 [ 286.357277][ T27] out_of_line_wait_on_bit+0x1d0/0x250 [ 286.362757][ T27] ? bit_wait+0xc0/0xc0 [ 286.366960][ T27] ? __wait_on_bit+0x180/0x180 [ 286.371739][ T27] ? submit_bio+0x2dd/0x560 [ 286.376287][ T27] ? bit_waitqueue+0x30/0x30 [ 286.380927][ T27] __bread_gfp+0x2d6/0x390 [ 286.385388][ T27] qnx6_check_first_superblock+0xa2/0x320 [ 286.391138][ T27] qnx6_fill_super+0x349/0x19c0 [ 286.396030][ T27] ? ptr_to_hashval+0x60/0x60 [ 286.400735][ T27] ? snprintf+0xd6/0x120 [ 286.405629][ T27] ? qnx6_mount+0x40/0x40 [ 286.409985][ T27] ? set_blocksize+0x1ec/0x370 [ 286.414796][ T27] mount_bdev+0x2c9/0x3f0 [ 286.419149][ T27] ? qnx6_mount+0x40/0x40 [ 286.423494][ T27] legacy_get_tree+0xeb/0x180 [ 286.428206][ T27] ? qnx6_get_block+0x720/0x720 [ 286.433084][ T27] vfs_get_tree+0x88/0x270 [ 286.437552][ T27] do_new_mount+0x2ba/0xb40 [ 286.442082][ T27] ? do_move_mount_old+0x160/0x160 [ 286.447243][ T27] ? user_path_at_empty+0x12b/0x180 [ 286.452506][ T27] __se_sys_mount+0x2d5/0x3c0 [ 286.457232][ T27] ? __x64_sys_mount+0xc0/0xc0 [ 286.462018][ T27] ? syscall_enter_from_user_mode+0x2e/0x240 [ 286.468054][ T27] ? lockdep_hardirqs_on+0x94/0x130 [ 286.473311][ T27] ? __x64_sys_mount+0x1c/0xc0 [ 286.478123][ T27] do_syscall_64+0x3b/0xb0 [ 286.482557][ T27] ? clear_bhb_loop+0x15/0x70 [ 286.487280][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 286.493201][ T27] RIP: 0033:0x7f9b8e795939 [ 286.497763][ T27] RSP: 002b:00007ffd41b6c4d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 [ 286.506236][ T27] RAX: ffffffffffffffda RBX: 00007f9b8e7de078 RCX: 00007f9b8e795939 [ 286.514373][ T27] RDX: 0000000020000580 RSI: 0000000020000480 RDI: 0000000020000440 [ 286.522373][ T27] RBP: 00007f9b8e8085f0 R08: 0000000000000000 R09: 0000000000000006 [ 286.530478][ T27] R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000001 [ 286.538553][ T27] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 286.546597][ T27] [ 286.549660][ T27] [ 286.549660][ T27] Showing all locks held in the system: [ 286.557449][ T27] 1 lock held by khungtaskd/27: [ 286.562324][ T27] #0: ffffffff8cb1fd20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 286.571774][ T27] 2 locks held by getty/3930: [ 286.576497][ T27] #0: ffff88802c97f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 286.586422][ T27] #1: ffffc90002cd62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 [ 286.596600][ T27] 1 lock held by syz-executor304/4163: [ 286.602071][ T27] #0: ffff8880787700e0 (&type->s_umount_key#42/1){+.+.}-{3:3}, at: alloc_super+0x210/0x940 [ 286.612273][ T27] [ 286.614639][ T27] ============================================= [ 286.614639][ T27] [ 286.623066][ T27] NMI backtrace for cpu 0 [ 286.627404][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.175-syzkaller #0 [ 286.635434][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 286.645490][ T27] Call Trace: [ 286.648766][ T27] [ 286.651690][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 286.656371][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 286.662001][ T27] ? panic+0x860/0x860 [ 286.666067][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0 [ 286.671187][ T27] nmi_cpu_backtrace+0x46a/0x4a0 [ 286.676293][ T27] ? __wake_up_klogd+0xd5/0x100 [ 286.681148][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0 [ 286.687297][ T27] ? _printk+0xd1/0x120 [ 286.691473][ T27] ? panic+0x860/0x860 [ 286.695540][ T27] ? __wake_up_klogd+0xcc/0x100 [ 286.700388][ T27] ? panic+0x860/0x860 [ 286.704474][ T27] ? wq_watchdog_touch+0xeb/0x170 [ 286.709500][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 286.715564][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0 [ 286.721550][ T27] watchdog+0xe72/0xeb0 [ 286.725739][ T27] kthread+0x3f6/0x4f0 [ 286.729804][ T27] ? hungtask_pm_notify+0x50/0x50 [ 286.734850][ T27] ? kthread_blkcg+0xd0/0xd0 [ 286.739450][ T27] ret_from_fork+0x1f/0x30 [ 286.743887][ T27] [ 286.747039][ T27] Sending NMI from CPU 0 to CPUs 1: [ 286.752304][ C1] NMI backtrace for cpu 1 skipped: idling at acpi_idle_do_entry+0x10f/0x340 [ 286.754385][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 286.768958][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.175-syzkaller #0 [ 286.777108][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 286.787157][ T27] Call Trace: [ 286.790431][ T27] [ 286.793360][ T27] dump_stack_lvl+0x1e3/0x2d0 [ 286.798038][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0 [ 286.803665][ T27] ? panic+0x860/0x860 [ 286.807744][ T27] panic+0x318/0x860 [ 286.811654][ T27] ? schedule_preempt_disabled+0x20/0x20 [ 286.817284][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 286.823440][ T27] ? fb_is_primary_device+0xd0/0xd0 [ 286.828649][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 286.834741][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0 [ 286.840926][ T27] ? nmi_trigger_cpumask_backtrace+0x281/0x2a0 [ 286.847078][ T27] ? nmi_trigger_cpumask_backtrace+0x286/0x2a0 [ 286.853227][ T27] watchdog+0xeb0/0xeb0 [ 286.857388][ T27] kthread+0x3f6/0x4f0 [ 286.861452][ T27] ? hungtask_pm_notify+0x50/0x50 [ 286.866473][ T27] ? kthread_blkcg+0xd0/0xd0 [ 286.871060][ T27] ret_from_fork+0x1f/0x30 [ 286.875482][ T27] [ 286.878856][ T27] Kernel Offset: disabled [ 286.883234][ T27] Rebooting in 86400 seconds..