[ 96.938641][ T785] cfg80211: failed to load regulatory.db Warning: Permanently added '[localhost]:14104' (ED25519) to the list of known hosts. executing program [ 203.115956][ T5125] loop0: detected capacity change from 0 to 32768 [ 429.732245][ T25] INFO: task kworker/u4:7:1029 blocked for more than 143 seconds. [ 429.736685][ T25] Not tainted 6.12.0-rc1-syzkaller-00381-g2a130b7e1fcd #0 [ 429.761508][ T25] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.765245][ T25] task:kworker/u4:7 state:D stack:19192 pid:1029 tgid:1029 ppid:2 flags:0x00004000 [ 429.769474][ T25] Workqueue: writeback wb_workfn (flush-7:0) [ 429.790573][ T25] Call Trace: [ 429.792120][ T25] [ 429.793337][ T25] __schedule+0x1895/0x4b30 [ 429.795232][ T25] ? __pfx___schedule+0x10/0x10 [ 429.796910][ T25] ? __blk_flush_plug+0x449/0x500 [ 429.798836][ T25] ? __pfx_lock_release+0x10/0x10 [ 429.820326][ T25] ? __mutex_trylock_common+0x92/0x2e0 [ 429.823227][ T25] ? kthread_data+0x52/0xd0 [ 429.826151][ T25] ? schedule+0x90/0x320 [ 429.828300][ T25] ? wq_worker_sleeping+0x66/0x240 [ 429.851370][ T25] ? schedule+0x90/0x320 [ 429.861102][ T25] schedule+0x14b/0x320 [ 429.863230][ T25] schedule_preempt_disabled+0x13/0x30 [ 429.865400][ T25] __mutex_lock+0x6a7/0xd70 [ 429.867285][ T25] ? __mutex_lock+0x52a/0xd70 [ 429.869200][ T25] ? jfs_commit_inode+0x24a/0x590 [ 429.890293][ T25] ? __pfx___mutex_lock+0x10/0x10 [ 429.892732][ T25] jfs_commit_inode+0x24a/0x590 [ 429.895206][ T25] ? __pfx_jfs_commit_inode+0x10/0x10 [ 429.897802][ T25] ? do_raw_spin_unlock+0x58/0x8b0 [ 429.899915][ T25] jfs_write_inode+0x143/0x220 [ 429.930259][ T25] __writeback_single_inode+0x711/0x10d0 [ 429.932571][ T25] writeback_sb_inodes+0x80c/0x1370 [ 429.934613][ T25] ? mark_lock+0x2ae/0x360 [ 429.936370][ T25] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 429.938595][ T25] ? __pfx___up_read+0x10/0x10 [ 429.970952][ T25] ? do_raw_spin_lock+0x14f/0x370 [ 429.972842][ T25] __writeback_inodes_wb+0x11b/0x260 [ 429.974991][ T25] wb_writeback+0x42f/0xbd0 [ 429.976885][ T25] ? queue_io+0x331/0x5a0 [ 429.978626][ T25] ? __pfx_wb_writeback+0x10/0x10 [ 429.990896][ T25] wb_workfn+0xc58/0x1090 [ 429.992663][ T25] ? __pfx_wb_workfn+0x10/0x10 [ 429.994403][ T25] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 429.996516][ T25] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 429.998923][ T25] ? process_scheduled_works+0x976/0x1850 [ 430.031066][ T25] process_scheduled_works+0xa63/0x1850 [ 430.033341][ T25] ? __pfx_process_scheduled_works+0x10/0x10 [ 430.035760][ T25] ? assign_work+0x364/0x3d0 [ 430.037642][ T25] worker_thread+0x870/0xd30 [ 430.039543][ T25] ? __kthread_parkme+0x169/0x1d0 [ 430.062201][ T25] ? __pfx_worker_thread+0x10/0x10 [ 430.070200][ T25] kthread+0x2f0/0x390 [ 430.071845][ T25] ? __pfx_worker_thread+0x10/0x10 [ 430.073830][ T25] ? __pfx_kthread+0x10/0x10 [ 430.075685][ T25] ret_from_fork+0x4b/0x80 [ 430.077507][ T25] ? __pfx_kthread+0x10/0x10 [ 430.079379][ T25] ret_from_fork_asm+0x1a/0x30 [ 430.101449][ T25] [ 430.110583][ T25] [ 430.110583][ T25] Showing all locks held in the system: [ 430.113964][ T25] 1 lock held by khungtaskd/25: [ 430.116186][ T25] #0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 430.140208][ T25] 1 lock held by kswapd0/73: [ 430.142130][ T25] 4 locks held by kworker/u4:7/1029: [ 430.144147][ T25] #0: ffff888030fce148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 [ 430.149109][ T25] #1: ffffc900024f7d00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 [ 430.180233][ T25] #2: ffff8880359620e0 (&type->s_umount_key#44){.+.+}-{3:3}, at: super_trylock_shared+0x22/0xf0 [ 430.186823][ T25] #3: ffff888012c0afe0 (&jfs_ip->commit_mutex){+.+.}-{3:3}, at: jfs_commit_inode+0x24a/0x590 [ 430.220549][ T25] 2 locks held by getty/4900: [ 430.222639][ T25] #0: ffff88801e2310a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 430.226764][ T25] #1: ffffc9000039b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 [ 430.250250][ T25] 4 locks held by syz-executor197/5125: [ 430.252658][ T25] [ 430.253781][ T25] ============================================= [ 430.253781][ T25] [ 430.257372][ T25] NMI backtrace for cpu 0 [ 430.259272][ T25] CPU: 0 UID: 0 PID: 25 Comm: khungtaskd Not tainted 6.12.0-rc1-syzkaller-00381-g2a130b7e1fcd #0 [ 430.263410][ T25] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 430.267669][ T25] Call Trace: [ 430.269020][ T25] [ 430.270182][ T25] dump_stack_lvl+0x241/0x360 [ 430.272301][ T25] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.274855][ T25] ? __pfx__printk+0x10/0x10 [ 430.277171][ T25] nmi_cpu_backtrace+0x49c/0x4d0 [ 430.279191][ T25] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 430.281281][ T25] ? _printk+0xd5/0x120 [ 430.282798][ T25] ? __pfx__printk+0x10/0x10 [ 430.284718][ T25] ? __wake_up_klogd+0xcc/0x110 [ 430.286917][ T25] ? __pfx__printk+0x10/0x10 [ 430.288991][ T25] ? __rcu_read_unlock+0xa1/0x110 [ 430.291269][ T25] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 430.293790][ T25] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 430.296220][ T25] watchdog+0xff4/0x1040 [ 430.298050][ T25] ? watchdog+0x1ea/0x1040 [ 430.300048][ T25] ? __pfx_watchdog+0x10/0x10 [ 430.302252][ T25] kthread+0x2f0/0x390 [ 430.304255][ T25] ? __pfx_watchdog+0x10/0x10 [ 430.306424][ T25] ? __pfx_kthread+0x10/0x10 [ 430.308264][ T25] ret_from_fork+0x4b/0x80 [ 430.310012][ T25] ? __pfx_kthread+0x10/0x10 [ 430.311798][ T25] ret_from_fork_asm+0x1a/0x30 [ 430.313773][ T25] [ 430.460234][ T25] Kernel panic - not syncing: hung_task: blocked tasks [ 430.463525][ T25] CPU: 0 UID: 0 PID: 25 Comm: khungtaskd Not tainted 6.12.0-rc1-syzkaller-00381-g2a130b7e1fcd #0 [ 430.467580][ T25] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 430.471811][ T25] Call Trace: [ 430.473210][ T25] [ 430.474397][ T25] dump_stack_lvl+0x241/0x360 [ 430.476332][ T25] ? __pfx_dump_stack_lvl+0x10/0x10 [ 430.478448][ T25] ? __pfx__printk+0x10/0x10 [ 430.480323][ T25] ? nmi_cpu_backtrace+0x42e/0x4d0 [ 430.482690][ T25] ? vscnprintf+0x5d/0x90 [ 430.484513][ T25] panic+0x349/0x880 [ 430.486039][ T25] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 430.488264][ T25] ? __pfx_panic+0x10/0x10 [ 430.489869][ T25] ? tick_nohz_tick_stopped+0x82/0xb0 [ 430.491756][ T25] ? __irq_work_queue_local+0x137/0x410 [ 430.494058][ T25] ? preempt_schedule_thunk+0x1a/0x30 [ 430.496669][ T25] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 430.500167][ T25] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 430.502972][ T25] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 430.505397][ T25] watchdog+0x1033/0x1040 [ 430.507073][ T25] ? watchdog+0x1ea/0x1040 [ 430.508912][ T25] ? __pfx_watchdog+0x10/0x10 [ 430.510880][ T25] kthread+0x2f0/0x390 [ 430.512459][ T25] ? __pfx_watchdog+0x10/0x10 [ 430.514453][ T25] ? __pfx_kthread+0x10/0x10 [ 430.516761][ T25] ret_from_fork+0x4b/0x80 [ 430.519174][ T25] ? __pfx_kthread+0x10/0x10 [ 430.521564][ T25] ret_from_fork_asm+0x1a/0x30 [ 430.523748][ T25] [ 430.525513][ T25] Kernel Offset: disabled [ 430.527476][ T25] Rebooting in 86400 seconds.. VM DIAGNOSIS: 03:59:51 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000067 RBX=ffffffff9a711e40 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=0000000000000000 RSP=ffffc900004bf770 R8 =ffffffff85498efb R9 =1ffff11003d93046 R10=dffffc0000000000 R11=ffffffff85498eb0 R12=dffffc0000000000 R13=ffffffff9a40cf25 R14=0000000000000067 R15=00000000000003f8 RIP=ffffffff85498f2e 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=000056093d9e93a1 CR3=000000003da0e000 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=0000000006000800 Opmask01=0000000001100000 Opmask02=000000000fffffff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 9aecf4603cd24514 b899e661865060bd ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 8bbfd7fc05d8b53a d2cf5f63c914d2fa ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 1b288149be061643 e9969a108eb7ea52 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 f709f04b7ff8a4d5 80801ef4c204d5d7 ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000280 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000040 ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 33ca2efb2e33df20 413bdae008ed7877 ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 7b8f2f1d8f5f2b2c 39eefd385a2c7f7d ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 af329e154c47dcae 1d6da2317325e32a ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 b06c18b7dcdca0b4 3c7ef590ddcb2e6c ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 f8dbba8c4b79748c c745516227b8a7dd ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 e65d6a657771055e 79c5baea161e5c26 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 a54ff53a3c6ef372 bb67ae856a09e667 ZMM15=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 5be0cd191f83d9ab 9b05688c510e527f ZMM16=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM17=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2525252525252525 2525252525252525 2525252525252525 2525252525252525 ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 7564203a00000000 0000000000000000 0000000000000000 0000000000000000 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 5041051f56000051 404e464a53055140 4e46445000424b4c 41574452574a430a ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000911 0000000000000000 306572673670692f 74656e2f6c617574 ZMM21=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000041 0000000000000000 00306e6170772f74 656e2f307968702f ZMM22=0000000000000000 0000000000000000 0000000000000000 0000000000000000 1512097f5111050b 54070b410a010d53 405e4d361609070f 1710794113073916 ZMM23=0000000000000000 0000000000000000 0000000000000000 0000000000000000 5f1f5f7f5f5f175f 7d170f7f1f436f57 577f5f775f7d5f5f 3f7f7f4d1f1f3f7f ZMM24=0000000000000000 0000000000000000 0000000000000000 0000000000000000 6169726176206120 7365726975716572 2073252065707974 00746e656d6e6769 ZMM25=0000000000000000 0000000000000000 0000000000000000 0000000000000000 20696d2072646461 3664612064652032 370036656c5f6665 640a726900657270 ZMM26=0000000000000000 0000000000000000 0000000000000000 0000000000000000 2061682036646461 2064612064652020 3300203620343720 360a0a6100655f0a 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