DUID 00:04:f2:4c:aa:b0:96:74:e7:72:58:13:44:6d:8f:a8:ad:79
forked to background, child pid 3836
[ 36.916191][ T3837] 8021q: adding VLAN 0 to HW filter on device bond0
[ 36.927157][ T3837] eql: remember to turn off Van-Jacobson compression on your slave devices
Starting sshd: OK
syzkaller
Warning: Permanently added '10.128.0.67' (ED25519) to the list of known hosts.
executing program
syzkaller login: [ 70.696109][ T4162] loop0: detected capacity change from 0 to 32768
[ 70.785107][ T4162] BTRFS: device fsid a6a605fc-d5f1-4e66-8595-3726e2b761d6 devid 1 transid 8 /dev/loop0 scanned by syz-executor661 (4162)
[ 70.807902][ T4162] BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm
[ 70.817693][ T4162] BTRFS info (device loop0): using free space tree
[ 70.824660][ T4162] BTRFS info (device loop0): has skinny extents
[ 70.852940][ T4162] BTRFS info (device loop0): enabling ssd optimizations
[ 81.544859][ T21] cfg80211: failed to load regulatory.db
[ 286.344004][ T27] INFO: task syz-executor661:4162 blocked for more than 143 seconds.
[ 286.352435][ T27] Not tainted 5.15.173-syzkaller #0
[ 286.358302][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 286.367085][ T27] task:syz-executor661 state:D stack:22784 pid: 4162 ppid: 4161 flags:0x00004006
[ 286.376456][ T27] Call Trace:
[ 286.379737][ T27]
[ 286.382910][ T27] __schedule+0x12c4/0x45b0
[ 286.387691][ T27] ? release_firmware_map_entry+0x190/0x190
[ 286.393655][ T27] ? _raw_spin_unlock_irqrestore+0xd9/0x130
[ 286.399637][ T27] ? do_raw_spin_unlock+0x137/0x8b0
[ 286.404969][ T27] schedule+0x11b/0x1f0
[ 286.409147][ T27] wait_extent_bit+0x3f9/0x530
[ 286.414018][ T27] ? lock_extent_bits+0x1e0/0x1e0
[ 286.419078][ T27] ? init_wait_entry+0xd0/0xd0
[ 286.423987][ T27] lock_extent_bits+0x10d/0x1e0
[ 286.428858][ T27] ? clear_record_extent_bits+0x70/0x70
[ 286.434457][ T27] ? wait_on_page_writeback+0x161/0x1a0
[ 286.440110][ T27] btrfs_page_mkwrite+0x5f2/0xd60
[ 286.445271][ T27] ? btrfs_submit_direct+0x1160/0x1160
[ 286.450765][ T27] ? __lock_acquire+0x1ff0/0x1ff0
[ 286.455870][ T27] ? do_raw_spin_lock+0x14a/0x370
[ 286.460926][ T27] do_page_mkwrite+0x1a9/0x440
[ 286.465840][ T27] wp_page_shared+0x179/0x690
[ 286.470539][ T27] handle_mm_fault+0x2a3d/0x5960
[ 286.475581][ T27] ? numa_migrate_prep+0x1a0/0x1a0
[ 286.480751][ T27] ? vmacache_find+0x23c/0x590
[ 286.485657][ T27] exc_page_fault+0x271/0x700
[ 286.490486][ T27] ? __might_fault+0xb8/0x110
[ 286.495233][ T27] asm_exc_page_fault+0x22/0x30
[ 286.500123][ T27] RIP: 0010:copy_user_generic_unrolled+0x89/0xc0
[ 286.506571][ T27] Code: 38 4c 89 47 20 4c 89 4f 28 4c 89 57 30 4c 89 5f 38 48 8d 76 40 48 8d 7f 40 ff c9 75 b6 89 d1 83 e2 07 c1 e9 03 74 12 4c 8b 06 <4c> 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10 89 d1 8a
[ 286.526259][ T27] RSP: 0018:ffffc900031af668 EFLAGS: 00050202
[ 286.532384][ T27] RAX: ffffffff8413a001 RBX: 00000000200003d8 RCX: 0000000000000007
[ 286.540381][ T27] RDX: 0000000000000000 RSI: ffffc900031af720 RDI: 00000000200003a0
[ 286.548418][ T27] RBP: ffffc900031af7d0 R08: 0000000000000000 R09: fffff52000635eeb
[ 286.556438][ T27] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000038
[ 286.564481][ T27] R13: 00007ffffffff000 R14: ffffc900031af720 R15: 00000000200003a0
[ 286.572527][ T27] ? _copy_to_user+0x11/0x130
[ 286.577294][ T27] _copy_to_user+0xef/0x130
[ 286.581792][ T27] fiemap_fill_next_extent+0x231/0x410
[ 286.587352][ T27] ? free_extent_map+0x133/0x1f0
[ 286.592359][ T27] ? vfs_ioctl+0xc0/0xc0
[ 286.596605][ T27] ? btrfs_release_path+0x243/0x260
[ 286.601846][ T27] extent_fiemap+0x1218/0x1650
[ 286.606690][ T27] ? extent_fiemap+0x1131/0x1650
[ 286.611651][ T27] ? try_release_extent_mapping+0x550/0x550
[ 286.617589][ T27] ? __might_fault+0xb8/0x110
[ 286.622330][ T27] ? fiemap_prep+0x1b0/0x240
[ 286.626924][ T27] btrfs_fiemap+0x121/0x160
[ 286.631431][ T27] ? btrfs_getattr+0x4a0/0x4a0
[ 286.636252][ T27] ? __might_fault+0xb4/0x110
[ 286.640959][ T27] ? btrfs_getattr+0x4a0/0x4a0
[ 286.645787][ T27] do_vfs_ioctl+0x1934/0x2b70
[ 286.650488][ T27] ? __x64_compat_sys_ioctl+0x80/0x80
[ 286.655906][ T27] ? __lock_acquire+0x1ff0/0x1ff0
[ 286.660946][ T27] ? slab_free_freelist_hook+0xdd/0x160
[ 286.666640][ T27] ? tomoyo_path_number_perm+0x648/0x810
[ 286.672380][ T27] ? kfree+0xf1/0x270
[ 286.676381][ T27] ? tomoyo_path_number_perm+0x6ab/0x810
[ 286.682018][ T27] ? tomoyo_check_path_acl+0x1c0/0x1c0
[ 286.687599][ T27] ? lockdep_hardirqs_on_prepare+0x438/0x7a0
[ 286.693650][ T27] ? print_irqtrace_events+0x210/0x210
[ 286.699120][ T27] ? vtime_user_exit+0x2d1/0x400
[ 286.704168][ T27] ? bpf_lsm_file_ioctl+0x5/0x10
[ 286.709167][ T27] ? security_file_ioctl+0x7d/0xa0
[ 286.714385][ T27] __se_sys_ioctl+0x81/0x160
[ 286.719013][ T27] do_syscall_64+0x3b/0xb0
[ 286.723491][ T27] ? clear_bhb_loop+0x15/0x70
[ 286.728185][ T27] entry_SYSCALL_64_after_hwframe+0x66/0xd0
[ 286.734128][ T27] RIP: 0033:0x7fb61a827b19
[ 286.738583][ T27] RSP: 002b:00007ffd4c034818 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[ 286.747180][ T27] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb61a827b19
[ 286.755202][ T27] RDX: 0000000020000380 RSI: 00000000c020660b RDI: 0000000000000004
[ 286.763225][ T27] RBP: 00007fb61a8a05f0 R08: 0000000000000000 R09: 0000000000000000
[ 286.771209][ T27] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd4c034850
[ 286.779510][ T27] R13: 00007ffd4c034a78 R14: 431bde82d7b634db R15: 00007fb61a87003b
[ 286.787640][ T27]
[ 286.790791][ T27]
[ 286.790791][ T27] Showing all locks held in the system:
[ 286.798739][ T27] 1 lock held by khungtaskd/27:
[ 286.803744][ T27] #0: ffffffff8cb1fc60 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
[ 286.813240][ T27] 2 locks held by getty/3932:
[ 286.817924][ T27] #0: ffff88814ca3b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70
[ 286.827806][ T27] #1: ffffc900025c62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0
[ 286.838023][ T27] 3 locks held by syz-executor661/4162:
[ 286.843617][ T27] #0: ffff88807daf0f28 (&mm->mmap_lock){++++}-{3:3}, at: exc_page_fault+0x181/0x700
[ 286.853211][ T27] #1: ffff88802af34558 (sb_pagefaults){.+.+}-{0:0}, at: do_page_mkwrite+0x1a9/0x440
[ 286.862810][ T27] #2: ffff888075be0498 (&ei->i_mmap_lock){.+.+}-{3:3}, at: btrfs_page_mkwrite+0x4a2/0xd60
[ 286.872870][ T27]
[ 286.875224][ T27] =============================================
[ 286.875224][ T27]
[ 286.883685][ T27] NMI backtrace for cpu 1
[ 286.888023][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.173-syzkaller #0
[ 286.895989][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 286.906034][ T27] Call Trace:
[ 286.909300][ T27]
[ 286.912240][ T27] dump_stack_lvl+0x1e3/0x2d0
[ 286.916963][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0
[ 286.922616][ T27] ? panic+0x860/0x860
[ 286.926681][ T27] ? nmi_cpu_backtrace+0x23b/0x4a0
[ 286.931826][ T27] nmi_cpu_backtrace+0x46a/0x4a0
[ 286.936771][ T27] ? __wake_up_klogd+0xd5/0x100
[ 286.941626][ T27] ? nmi_trigger_cpumask_backtrace+0x2a0/0x2a0
[ 286.947778][ T27] ? _printk+0xd1/0x120
[ 286.951937][ T27] ? panic+0x860/0x860
[ 286.956019][ T27] ? __wake_up_klogd+0xcc/0x100
[ 286.960883][ T27] ? panic+0x860/0x860
[ 286.964969][ T27] ? __rcu_read_unlock+0x92/0x100
[ 286.970071][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 286.976158][ T27] nmi_trigger_cpumask_backtrace+0x181/0x2a0
[ 286.982132][ T27] watchdog+0xe72/0xeb0
[ 286.986320][ T27] kthread+0x3f6/0x4f0
[ 286.990396][ T27] ? hungtask_pm_notify+0x50/0x50
[ 286.995421][ T27] ? kthread_blkcg+0xd0/0xd0
[ 287.000001][ T27] ret_from_fork+0x1f/0x30
[ 287.004453][ T27]
[ 287.007574][ T27] Sending NMI from CPU 1 to CPUs 0:
[ 287.012858][ C0] NMI backtrace for cpu 0 skipped: idling at acpi_idle_do_entry+0x10f/0x340
[ 287.013841][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 287.028430][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.173-syzkaller #0
[ 287.036399][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
[ 287.046443][ T27] Call Trace:
[ 287.049712][ T27]
[ 287.052633][ T27] dump_stack_lvl+0x1e3/0x2d0
[ 287.057308][ T27] ? io_uring_drop_tctx_refs+0x1a0/0x1a0
[ 287.062933][ T27] ? panic+0x860/0x860
[ 287.067031][ T27] panic+0x318/0x860
[ 287.070921][ T27] ? nmi_trigger_cpumask_backtrace+0x221/0x2a0
[ 287.077064][ T27] ? fb_is_primary_device+0xd0/0xd0
[ 287.082254][ T27] ? panic+0x860/0x860
[ 287.086325][ T27] ? irq_work_queue+0xcd/0x150
[ 287.091166][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 287.097236][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 287.103302][ T27] ? arch_trigger_cpumask_backtrace+0x10/0x10
[ 287.109359][ T27] ? nmi_trigger_cpumask_backtrace+0x22a/0x2a0
[ 287.115570][ T27] watchdog+0xeb0/0xeb0
[ 287.119750][ T27] kthread+0x3f6/0x4f0
[ 287.123809][ T27] ? hungtask_pm_notify+0x50/0x50
[ 287.128840][ T27] ? kthread_blkcg+0xd0/0xd0
[ 287.133420][ T27] ret_from_fork+0x1f/0x30
[ 287.137832][ T27]
[ 287.141195][ T27] Kernel Offset: disabled
[ 287.145546][ T27] Rebooting in 86400 seconds..