[ 86.672050][ T57] cfg80211: failed to load regulatory.db Warning: Permanently added '[localhost]:1944' (ED25519) to the list of known hosts. executing program [ 209.023115][ T5325] loop0: detected capacity change from 0 to 32768 [ 429.705603][ T26] INFO: task kworker/u4:10:1096 blocked for more than 143 seconds. [ 429.709493][ T26] Not tainted 6.14.0-rc5-syzkaller-00214-g21e4543a2e2f #0 [ 429.713452][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.724086][ T26] task:kworker/u4:10 state:D stack:18320 pid:1096 tgid:1096 ppid:2 task_flags:0x4208060 flags:0x00004000 [ 429.728868][ T26] Workqueue: writeback wb_workfn (flush-7:0) [ 429.731214][ T26] Call Trace: [ 429.732501][ T26] [ 429.733760][ T26] __schedule+0x190e/0x4c90 [ 429.754118][ T26] ? __pfx___schedule+0x10/0x10 [ 429.756229][ T26] ? __blk_flush_plug+0x449/0x500 [ 429.758204][ T26] ? __pfx_lock_release+0x10/0x10 [ 429.760270][ T26] ? kthread_data+0x52/0xd0 [ 429.762194][ T26] ? schedule+0x90/0x320 [ 429.763934][ T26] ? wq_worker_sleeping+0x66/0x240 [ 429.774111][ T26] ? schedule+0x90/0x320 [ 429.775859][ T26] schedule+0x14b/0x320 [ 429.777649][ T26] schedule_preempt_disabled+0x13/0x30 [ 429.779929][ T26] __mutex_lock+0x817/0x1010 [ 429.781876][ T26] ? __mutex_lock+0x602/0x1010 [ 429.783867][ T26] ? jfs_commit_inode+0x24a/0x590 [ 429.794573][ T26] ? __pfx___mutex_lock+0x10/0x10 [ 429.796687][ T26] jfs_commit_inode+0x24a/0x590 [ 429.798848][ T26] ? __pfx_jfs_commit_inode+0x10/0x10 [ 429.801094][ T26] ? do_raw_spin_unlock+0x58/0x8b0 [ 429.803227][ T26] jfs_write_inode+0x143/0x220 [ 429.824766][ T26] __writeback_single_inode+0x708/0x10d0 [ 429.827133][ T26] writeback_sb_inodes+0x820/0x1360 [ 429.829293][ T26] ? mark_lock+0x2ae/0x360 [ 429.831049][ T26] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 429.833301][ T26] ? __pfx___up_read+0x10/0x10 [ 429.844147][ T26] ? do_raw_spin_lock+0x14f/0x370 [ 429.846051][ T26] __writeback_inodes_wb+0x11b/0x260 [ 429.847995][ T26] wb_writeback+0x427/0xb80 [ 429.849608][ T26] ? queue_io+0x351/0x5a0 [ 429.850999][ T26] ? __pfx_wb_writeback+0x10/0x10 [ 429.852688][ T26] wb_workfn+0xb94/0x1080 [ 429.864178][ T26] ? __pfx_wb_workfn+0x10/0x10 [ 429.866210][ T26] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 429.868644][ T26] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 429.871104][ T26] ? process_scheduled_works+0x9c6/0x18e0 [ 429.873328][ T26] process_scheduled_works+0xabe/0x18e0 [ 429.894127][ T26] ? __pfx_process_scheduled_works+0x10/0x10 [ 429.896724][ T26] ? assign_work+0x364/0x3d0 [ 429.898795][ T26] worker_thread+0x870/0xd30 [ 429.900775][ T26] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 429.903193][ T26] ? __kthread_parkme+0x169/0x1d0 [ 429.914116][ T26] ? __pfx_worker_thread+0x10/0x10 [ 429.916131][ T26] kthread+0x7a9/0x920 [ 429.917732][ T26] ? __pfx_kthread+0x10/0x10 [ 429.919499][ T26] ? __pfx_worker_thread+0x10/0x10 [ 429.921496][ T26] ? __pfx_kthread+0x10/0x10 [ 429.923218][ T26] ? __pfx_kthread+0x10/0x10 [ 429.934893][ T26] ? __pfx_kthread+0x10/0x10 [ 429.937094][ T26] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.939158][ T26] ? lockdep_hardirqs_on+0x99/0x150 [ 429.941342][ T26] ? __pfx_kthread+0x10/0x10 [ 429.943186][ T26] ret_from_fork+0x4b/0x80 [ 429.954552][ T26] ? __pfx_kthread+0x10/0x10 [ 429.956500][ T26] ret_from_fork_asm+0x1a/0x30 [ 429.958454][ T26] [ 429.964643][ T26] [ 429.964643][ T26] Showing all locks held in the system: [ 429.967735][ T26] 1 lock held by khungtaskd/26: [ 429.969693][ T26] #0: ffffffff8eb39320 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 [ 429.973738][ T26] 4 locks held by kworker/u4:10/1096: [ 429.994116][ T26] #0: ffff88801c772148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x98b/0x18e0 [ 429.998516][ T26] #1: ffffc9000278fc60 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9c6/0x18e0 [ 430.003197][ T26] #2: ffff888000bec0e0 (&type->s_umount_key#42){.+.+}-{4:4}, at: super_trylock_shared+0x22/0xf0 [ 430.014537][ T26] #3: ffff8880456eafe0 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x24a/0x590 [ 430.018899][ T26] 2 locks held by getty/5106: [ 430.020862][ T26] #0: ffff8880007c90a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 430.044270][ T26] #1: ffffc9000019b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x616/0x1770 [ 430.048364][ T26] 4 locks held by syz-executor358/5325: [ 430.050596][ T26] [ 430.051582][ T26] ============================================= [ 430.051582][ T26] [ 430.064103][ T26] NMI backtrace for cpu 0 [ 430.064118][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.14.0-rc5-syzkaller-00214-g21e4543a2e2f #0 [ 430.064131][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 430.064137][ T26] Call Trace: [ 430.064144][ T26] [ 430.064150][ T26] dump_stack_lvl+0x241/0x360 [ 430.064168][ T26] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.064180][ T26] ? __pfx__printk+0x10/0x10 [ 430.064195][ T26] nmi_cpu_backtrace+0x49c/0x4d0 [ 430.064212][ T26] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 430.064222][ T26] ? _printk+0xd5/0x120 [ 430.064230][ T26] ? __pfx__printk+0x10/0x10 [ 430.064240][ T26] ? __wake_up_klogd+0xcc/0x110 [ 430.064254][ T26] ? __pfx__printk+0x10/0x10 [ 430.064264][ T26] ? __rcu_read_unlock+0xa1/0x110 [ 430.064279][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.064292][ T26] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 430.064305][ T26] watchdog+0x1058/0x10a0 [ 430.064322][ T26] ? watchdog+0x1ea/0x10a0 [ 430.064337][ T26] ? __pfx_watchdog+0x10/0x10 [ 430.064351][ T26] kthread+0x7a9/0x920 [ 430.064366][ T26] ? __pfx_kthread+0x10/0x10 [ 430.064381][ T26] ? __pfx_watchdog+0x10/0x10 [ 430.064395][ T26] ? __pfx_kthread+0x10/0x10 [ 430.064408][ T26] ? __pfx_kthread+0x10/0x10 [ 430.064420][ T26] ? __pfx_kthread+0x10/0x10 [ 430.064428][ T26] ? _raw_spin_unlock_irq+0x23/0x50 [ 430.064436][ T26] ? lockdep_hardirqs_on+0x99/0x150 [ 430.064444][ T26] ? __pfx_kthread+0x10/0x10 [ 430.064453][ T26] ret_from_fork+0x4b/0x80 [ 430.064462][ T26] ? __pfx_kthread+0x10/0x10 [ 430.064474][ T26] ret_from_fork_asm+0x1a/0x30 [ 430.064492][ T26] [ 430.064499][ T26] Kernel panic - not syncing: hung_task: blocked tasks [ 430.132964][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.14.0-rc5-syzkaller-00214-g21e4543a2e2f #0 [ 430.136762][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 430.141260][ T26] Call Trace: [ 430.142680][ T26] [ 430.143930][ T26] dump_stack_lvl+0x241/0x360 [ 430.145792][ T26] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.147852][ T26] ? __pfx__printk+0x10/0x10 [ 430.149675][ T26] ? vscnprintf+0x5d/0x90 [ 430.151498][ T26] panic+0x349/0x880 [ 430.153047][ T26] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 430.155248][ T26] ? __pfx_panic+0x10/0x10 [ 430.156960][ T26] ? __wake_up_klogd+0xcc/0x110 [ 430.158755][ T26] ? irq_work_queue+0xd1/0x150 [ 430.160483][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.162666][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.165090][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.167377][ T26] ? nmi_trigger_cpumask_backtrace+0x251/0x320 [ 430.169924][ T26] watchdog+0x1097/0x10a0 [ 430.171658][ T26] ? watchdog+0x1ea/0x10a0 [ 430.173322][ T26] ? __pfx_watchdog+0x10/0x10 [ 430.175335][ T26] kthread+0x7a9/0x920 [ 430.177053][ T26] ? __pfx_kthread+0x10/0x10 [ 430.178998][ T26] ? __pfx_watchdog+0x10/0x10 [ 430.181003][ T26] ? __pfx_kthread+0x10/0x10 [ 430.183085][ T26] ? __pfx_kthread+0x10/0x10 [ 430.185146][ T26] ? __pfx_kthread+0x10/0x10 [ 430.187055][ T26] ? _raw_spin_unlock_irq+0x23/0x50 [ 430.189033][ T26] ? lockdep_hardirqs_on+0x99/0x150 [ 430.191029][ T26] ? __pfx_kthread+0x10/0x10 [ 430.192751][ T26] ret_from_fork+0x4b/0x80 [ 430.194549][ T26] ? __pfx_kthread+0x10/0x10 [ 430.196373][ T26] ret_from_fork_asm+0x1a/0x30 [ 430.198289][ T26] [ 430.199858][ T26] Kernel Offset: disabled [ 430.201622][ T26] Rebooting in 86400 seconds.. VM DIAGNOSIS: 08:06:31 Registers: info registers vcpu 0 CPU#0 RAX=1ffffffff3532e60 RBX=ffffffff9a997100 RCX=0000000000000000 RDX=00000000000003fd RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc900004d7678 R8 =ffffffff85841d16 R9 =1ffff11006823046 R10=dffffc0000000000 R11=ffffffff85841cd0 R12=0000000000000000 R13=1ffffffff3532e72 R14=00000000000003fd R15=dffffc0000000000 RIP=ffffffff85841d46 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=000055a9dfa027c0 CR3=0000000043464000 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=0000000000002000 Opmask01=0000000000000480 Opmask02=0000000000008900 Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000001 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007ffd72888ff0 0000003000000010 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 6565656565656565 6565656565656565 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ff00ff0000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffffffffffffffff ffffffffffff0000 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ff00ff0000000000 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 4f6e3a6d5e007325 2e73250064252e73 2500656c6f736e6f 632f7665642f000a ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 4f4b1f485e005600 0b56000041000b56 000040494a564b4a 460a5340410a000a ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 3a646f6d20616f43 2051202e46202c6d 2061706144000a2e 000a20542f624d20 ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM27=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM28=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM29=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM30=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM31=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000