[ 86.642493][ T57] cfg80211: failed to load regulatory.db Warning: Permanently added '[localhost]:6684' (ED25519) to the list of known hosts. executing program [ 209.594535][ T5322] loop0: detected capacity change from 0 to 32768 [ 429.669400][ T26] INFO: task kworker/u4:7:1038 blocked for more than 143 seconds. [ 429.672623][ T26] Not tainted 6.14.0-rc7-syzkaller-00179-gb3ee1e460951 #0 [ 429.676992][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.699061][ T26] task:kworker/u4:7 state:D stack:23792 pid:1038 tgid:1038 ppid:2 task_flags:0x4208060 flags:0x00004000 [ 429.703674][ T26] Workqueue: writeback wb_workfn (flush-7:0) [ 429.706859][ T26] Call Trace: [ 429.708269][ T26] [ 429.718827][ T26] __schedule+0x190e/0x4c90 [ 429.720744][ T26] ? __pfx___schedule+0x10/0x10 [ 429.722769][ T26] ? __blk_flush_plug+0x449/0x500 [ 429.724898][ T26] ? __pfx_lock_release+0x10/0x10 [ 429.726984][ T26] ? kthread_data+0x52/0xd0 [ 429.739138][ T26] ? schedule+0x90/0x320 [ 429.740794][ T26] ? wq_worker_sleeping+0x66/0x240 [ 429.742776][ T26] ? schedule+0x90/0x320 [ 429.744560][ T26] schedule+0x14b/0x320 [ 429.746288][ T26] schedule_preempt_disabled+0x13/0x30 [ 429.748517][ T26] __mutex_lock+0x817/0x1010 [ 429.760530][ T26] ? __mutex_lock+0x602/0x1010 [ 429.762573][ T26] ? jfs_commit_inode+0x24a/0x590 [ 429.764622][ T26] ? __pfx___mutex_lock+0x10/0x10 [ 429.766625][ T26] jfs_commit_inode+0x24a/0x590 [ 429.779449][ T26] ? __pfx_jfs_commit_inode+0x10/0x10 [ 429.782737][ T26] ? do_raw_spin_unlock+0x58/0x8b0 [ 429.784800][ T26] jfs_write_inode+0x143/0x220 [ 429.786827][ T26] __writeback_single_inode+0x708/0x10d0 [ 429.798646][ T26] writeback_sb_inodes+0x820/0x1360 [ 429.800925][ T26] ? mark_lock+0x2ae/0x360 [ 429.802833][ T26] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 429.805252][ T26] ? __pfx___up_read+0x10/0x10 [ 429.807298][ T26] ? do_raw_spin_lock+0x14f/0x370 [ 429.828652][ T26] __writeback_inodes_wb+0x11b/0x260 [ 429.830797][ T26] wb_writeback+0x427/0xb80 [ 429.832644][ T26] ? queue_io+0x3a1/0x5a0 [ 429.834576][ T26] ? __pfx_wb_writeback+0x10/0x10 [ 429.836734][ T26] wb_workfn+0xb94/0x1080 [ 429.848645][ T26] ? __pfx_wb_workfn+0x10/0x10 [ 429.850819][ T26] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 429.853394][ T26] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 429.856091][ T26] ? process_scheduled_works+0x9c6/0x18e0 [ 429.858383][ T26] process_scheduled_works+0xabe/0x18e0 [ 429.869145][ T26] ? __pfx_process_scheduled_works+0x10/0x10 [ 429.871771][ T26] ? assign_work+0x364/0x3d0 [ 429.873856][ T26] worker_thread+0x870/0xd30 [ 429.888631][ T26] ? __kthread_parkme+0x169/0x1d0 [ 429.890842][ T26] ? __pfx_worker_thread+0x10/0x10 [ 429.893083][ T26] kthread+0x7a9/0x920 [ 429.894894][ T26] ? __pfx_kthread+0x10/0x10 [ 429.896890][ T26] ? __pfx_worker_thread+0x10/0x10 [ 429.908715][ T26] ? __pfx_kthread+0x10/0x10 [ 429.910659][ T26] ? __pfx_kthread+0x10/0x10 [ 429.912583][ T26] ? __pfx_kthread+0x10/0x10 [ 429.914422][ T26] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.916379][ T26] ? lockdep_hardirqs_on+0x99/0x150 [ 429.918359][ T26] ? __pfx_kthread+0x10/0x10 [ 429.929170][ T26] ret_from_fork+0x4b/0x80 [ 429.931127][ T26] ? __pfx_kthread+0x10/0x10 [ 429.933135][ T26] ret_from_fork_asm+0x1a/0x30 [ 429.935245][ T26] [ 429.949089][ T26] [ 429.949089][ T26] Showing all locks held in the system: [ 429.952161][ T26] 1 lock held by khungtaskd/26: [ 429.954163][ T26] #0: ffffffff8eb393e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 [ 429.957954][ T26] 4 locks held by kworker/u4:7/1038: [ 429.968625][ T26] #0: ffff88801cb06148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 [ 429.973286][ T26] #1: ffffc900025d7c60 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 [ 429.977708][ T26] #2: ffff8880128040e0 (&type->s_umount_key#42){.+.+}-{4:4}, at: super_trylock_shared+0x22/0xf0 [ 429.998634][ T26] #3: ffff888045a4afe0 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x24a/0x590 [ 430.002783][ T26] 2 locks held by getty/5103: [ 430.004703][ T26] #0: ffff88801ecd90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 430.014256][ T26] #1: ffffc9000019b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x616/0x1770 [ 430.018286][ T26] 4 locks held by syz-executor174/5322: [ 430.028672][ T26] [ 430.029727][ T26] ============================================= [ 430.029727][ T26] [ 430.033088][ T26] NMI backtrace for cpu 0 [ 430.033098][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.14.0-rc7-syzkaller-00179-gb3ee1e460951 #0 [ 430.033110][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 430.033116][ T26] Call Trace: [ 430.033122][ T26] [ 430.033128][ T26] dump_stack_lvl+0x241/0x360 [ 430.033147][ T26] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.033157][ T26] ? __pfx__printk+0x10/0x10 [ 430.033174][ T26] nmi_cpu_backtrace+0x49c/0x4d0 [ 430.033198][ T26] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 430.033209][ T26] ? _printk+0xd5/0x120 [ 430.033217][ T26] ? __pfx__printk+0x10/0x10 [ 430.033227][ T26] ? __wake_up_klogd+0xcc/0x110 [ 430.033241][ T26] ? __pfx__printk+0x10/0x10 [ 430.033251][ T26] ? __rcu_read_unlock+0xa1/0x110 [ 430.033265][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.033279][ T26] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 430.033292][ T26] watchdog+0x1058/0x10a0 [ 430.033302][ T26] ? watchdog+0x1ea/0x10a0 [ 430.033313][ T26] ? __pfx_watchdog+0x10/0x10 [ 430.033326][ T26] kthread+0x7a9/0x920 [ 430.033340][ T26] ? __pfx_kthread+0x10/0x10 [ 430.033355][ T26] ? __pfx_watchdog+0x10/0x10 [ 430.033368][ T26] ? __pfx_kthread+0x10/0x10 [ 430.033380][ T26] ? __pfx_kthread+0x10/0x10 [ 430.033396][ T26] ? __pfx_kthread+0x10/0x10 [ 430.033409][ T26] ? _raw_spin_unlock_irq+0x23/0x50 [ 430.033421][ T26] ? lockdep_hardirqs_on+0x99/0x150 [ 430.033434][ T26] ? __pfx_kthread+0x10/0x10 [ 430.033448][ T26] ret_from_fork+0x4b/0x80 [ 430.033460][ T26] ? __pfx_kthread+0x10/0x10 [ 430.033474][ T26] ret_from_fork_asm+0x1a/0x30 [ 430.033492][ T26] [ 430.033499][ T26] Kernel panic - not syncing: hung_task: blocked tasks [ 430.100601][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.14.0-rc7-syzkaller-00179-gb3ee1e460951 #0 [ 430.104632][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 430.108829][ T26] Call Trace: [ 430.110238][ T26] [ 430.111433][ T26] dump_stack_lvl+0x241/0x360 [ 430.113440][ T26] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.115537][ T26] ? __pfx__printk+0x10/0x10 [ 430.117239][ T26] ? vscnprintf+0x5d/0x90 [ 430.118923][ T26] panic+0x349/0x880 [ 430.120530][ T26] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 430.123086][ T26] ? __pfx_panic+0x10/0x10 [ 430.124978][ T26] ? __wake_up_klogd+0xcc/0x110 [ 430.126924][ T26] ? irq_work_queue+0xd1/0x150 [ 430.128821][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.131201][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.133703][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.136161][ T26] ? nmi_trigger_cpumask_backtrace+0x251/0x320 [ 430.138622][ T26] watchdog+0x1097/0x10a0 [ 430.140458][ T26] ? watchdog+0x1ea/0x10a0 [ 430.142377][ T26] ? __pfx_watchdog+0x10/0x10 [ 430.144421][ T26] kthread+0x7a9/0x920 [ 430.146173][ T26] ? __pfx_kthread+0x10/0x10 [ 430.148066][ T26] ? __pfx_watchdog+0x10/0x10 [ 430.149959][ T26] ? __pfx_kthread+0x10/0x10 [ 430.151886][ T26] ? __pfx_kthread+0x10/0x10 [ 430.153950][ T26] ? __pfx_kthread+0x10/0x10 [ 430.155819][ T26] ? _raw_spin_unlock_irq+0x23/0x50 [ 430.157803][ T26] ? lockdep_hardirqs_on+0x99/0x150 [ 430.159868][ T26] ? __pfx_kthread+0x10/0x10 [ 430.161780][ T26] ret_from_fork+0x4b/0x80 [ 430.163597][ T26] ? __pfx_kthread+0x10/0x10 [ 430.165377][ T26] ret_from_fork_asm+0x1a/0x30 [ 430.167258][ T26] [ 430.168752][ T26] Kernel Offset: disabled [ 430.170414][ T26] Rebooting in 86400 seconds.. VM DIAGNOSIS: 16:18:33 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000030 RBX=ffffffff9a99a100 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc900004d76d0 R8 =ffffffff8584586b R9 =1ffff11003e5d046 R10=dffffc0000000000 R11=ffffffff85845820 R12=dffffc0000000000 R13=0000000000000030 R14=0000000000000030 R15=00000000000003f8 RIP=ffffffff8584589e RFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88801fc00000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 fffffe0000003000 00004087 00008b00 DPL=0 TSS64-busy GDT= fffffe0000001000 0000007f IDT= fffffe0000000000 00000fff CR0=80050033 CR2=000056226b458758 CR3=00000000341f8000 CR4=00352ef0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 Opmask00=0000000000062003 Opmask01=0000000000100000 Opmask02=000000000fffffff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000080000010015 0000000c00000028 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000e00000001 0000000000000006 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0043004400010015 0000000000000040 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000ff0000 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffff00000000ff00 0000000000000000 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM12=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM13=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM14=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2525252525252525 2525252525252525 2525252525252525 2525252525252525 ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 50422064656e7761 7073203a73250050 5241006e65706f5f 667062203a732500 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 50420541404b5244 5556051f56000050 5241004b40554a5f 435547051f560000 ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000562709633258 0000000000000041 0000000000000000 ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 00000000000000b1 000056226b458700 00316e6170772f74 656e2f317968702f ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000021 0000000000000000 000056220e222233 73656d5f70636864 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 725f0f2e6f818661 72610f757beff37f 656777737f777fff 7f7f7d7f75777965 ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000021 0000000000000000 0000000000000031 0000726565666965 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000021 0000000000000000 0000000000000031 00006d5f65636864 ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 bfbfbfbfbfbfbfbf bfbfbfbfbfbfbfbf bfbfbfbfbfbfbfbf bfbf2b313423342c ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 262821df2e2e33df 3228df3232202b22 df312e232d2435bf 2324353124322431 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4141414141414141 4141414141414141 4141414141414141 4141414141414141 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a 1a1a1a1a1a1a1a1a ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2020202020202020 2020202020202020 2020202020202020 2020202020202020