syzkaller login: [ 92.155309][ T10] cfg80211: failed to load regulatory.db Warning: Permanently added '[localhost]:16161' (ED25519) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 214.249521][ T5346] loop0: detected capacity change from 0 to 32768 [ 214.425892][ T5342] non-latin1 character 0x2e66 found in JFS file name [ 214.429110][ T5342] mount with iocharset=utf8 to access executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 435.179817][ T26] INFO: task jfsCommit:103 blocked for more than 143 seconds. [ 435.183659][ T26] Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0 [ 435.235058][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 435.239319][ T26] task:jfsCommit state:D stack:26776 pid:103 tgid:103 ppid:2 task_flags:0x200040 flags:0x00004000 executing program [ 435.297263][ T26] Call Trace: [ 435.299113][ T26] [ 435.300608][ T26] __schedule+0x16f5/0x4d00 [ 435.302906][ T26] ? __lock_acquire+0xab9/0xd20 [ 435.345029][ T26] ? schedule+0x165/0x360 [ 435.347528][ T26] ? __pfx___schedule+0x10/0x10 [ 435.381137][ T26] ? schedule+0x91/0x360 [ 435.383131][ T26] schedule+0x165/0x360 [ 435.404999][ T26] io_schedule+0x80/0xd0 [ 435.406990][ T26] lock_metapage+0x1f3/0x400 [ 435.409128][ T26] ? lock_metapage+0x10b/0x400 [ 435.411337][ T26] ? __pfx_lock_metapage+0x10/0x10 [ 435.465115][ T26] ? __pfx_default_wake_function+0x10/0x10 [ 435.468170][ T26] ? do_read_cache_folio+0x4c6/0x590 [ 435.470766][ T26] ? __pfx_metapage_read_folio+0x10/0x10 [ 435.473164][ T26] __get_metapage+0x497/0xde0 [ 435.525712][ T26] diIAGRead+0xce/0x140 [ 435.545044][ T26] diFree+0x983/0x2c40 [ 435.557258][ T26] ? __pfx_diFree+0x10/0x10 [ 435.559623][ T26] ? __dquot_initialize+0x218/0xcb0 [ 435.562027][ T26] ? jfs_free_zero_link+0x33a/0x4a0 [ 435.564481][ T26] ? __pfx_jfs_free_zero_link+0x10/0x10 executing program [ 435.615180][ T26] jfs_evict_inode+0x331/0x440 [ 435.617758][ T26] ? evict+0x4f8/0x9c0 [ 435.644989][ T26] ? __pfx_jfs_evict_inode+0x10/0x10 [ 435.647881][ T26] evict+0x501/0x9c0 [ 435.650060][ T26] ? __pfx_evict+0x10/0x10 [ 435.695168][ T26] ? do_raw_spin_unlock+0x4d/0x240 [ 435.697609][ T26] ? _raw_spin_unlock+0x28/0x50 [ 435.699802][ T26] ? iput+0x6d8/0x9d0 [ 435.701639][ T26] jfs_lazycommit+0x43f/0xa90 [ 435.755037][ T26] ? __pfx_jfs_lazycommit+0x10/0x10 [ 435.757834][ T26] ? __pfx_default_wake_function+0x10/0x10 [ 435.760344][ T26] ? __kthread_parkme+0x7b/0x200 [ 435.762491][ T26] ? __kthread_parkme+0x1a1/0x200 [ 435.764722][ T26] kthread+0x70e/0x8a0 executing program [ 435.821396][ T26] ? __pfx_jfs_lazycommit+0x10/0x10 [ 435.824216][ T26] ? __pfx_kthread+0x10/0x10 [ 435.860230][ T26] ? _raw_spin_unlock_irq+0x23/0x50 [ 435.879302][ T26] ? lockdep_hardirqs_on+0x9c/0x150 [ 435.881751][ T26] ? __pfx_kthread+0x10/0x10 [ 435.909994][ T26] ret_from_fork+0x3fc/0x770 [ 435.912374][ T26] ? __pfx_ret_from_fork+0x10/0x10 [ 435.945038][ T26] ? __pfx_kthread+0x10/0x10 [ 435.955648][ T26] ret_from_fork_asm+0x1a/0x30 [ 435.981237][ T26] [ 435.991089][ T26] [ 435.991089][ T26] Showing all locks held in the system: [ 436.031265][ T26] 1 lock held by khungtaskd/26: [ 436.034219][ T26] #0: ffffffff8e13eda0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 executing program [ 436.092711][ T26] 2 locks held by jfsCommit/103: [ 436.105187][ T26] #0: ffff88803d418920 (&(imap->im_aglock[index])){+.+.}-{4:4}, at: diFree+0x29f/0x2c40 [ 436.109698][ T26] #1: ffff8880436fa618 (&jfs_ip->rdwrlock/1){.+.+}-{4:4}, at: diFree+0x2bd/0x2c40 [ 436.158050][ T26] 2 locks held by getty/5112: [ 436.160453][ T26] #0: ffff8880387290a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 436.164861][ T26] #1: ffffc900024be2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400 [ 436.235133][ T26] 2 locks held by syz-executor432/6281: [ 436.238187][ T26] 3 locks held by syz-executor432/6282: [ 436.240618][ T26] 3 locks held by syz-executor432/6283: [ 436.294449][ T26] [ 436.304642][ T26] ============================================= [ 436.304642][ T26] [ 436.325530][ T26] NMI backtrace for cpu 0 [ 436.325546][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0 PREEMPT(full) [ 436.325560][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 436.325567][ T26] Call Trace: [ 436.325574][ T26] [ 436.325579][ T26] dump_stack_lvl+0x189/0x250 [ 436.325602][ T26] ? __wake_up_klogd+0xd9/0x110 [ 436.325617][ T26] ? __pfx_dump_stack_lvl+0x10/0x10 [ 436.325627][ T26] ? __pfx__printk+0x10/0x10 [ 436.325640][ T26] nmi_cpu_backtrace+0x39e/0x3d0 [ 436.325651][ T26] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 436.325659][ T26] ? _printk+0xcf/0x120 [ 436.325667][ T26] ? __pfx__printk+0x10/0x10 [ 436.325681][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 436.325692][ T26] nmi_trigger_cpumask_backtrace+0x17a/0x300 [ 436.325705][ T26] watchdog+0xfee/0x1030 [ 436.325750][ T26] ? watchdog+0x1de/0x1030 [ 436.325768][ T26] kthread+0x70e/0x8a0 [ 436.325783][ T26] ? __pfx_watchdog+0x10/0x10 [ 436.325796][ T26] ? __pfx_kthread+0x10/0x10 [ 436.325809][ T26] ? _raw_spin_unlock_irq+0x23/0x50 [ 436.325824][ T26] ? lockdep_hardirqs_on+0x9c/0x150 [ 436.325840][ T26] ? __pfx_kthread+0x10/0x10 [ 436.325853][ T26] ret_from_fork+0x3fc/0x770 [ 436.325871][ T26] ? __pfx_ret_from_fork+0x10/0x10 [ 436.325891][ T26] ? __pfx_kthread+0x10/0x10 [ 436.325903][ T26] ret_from_fork_asm+0x1a/0x30 [ 436.325921][ T26] [ 436.325928][ T26] Kernel panic - not syncing: hung_task: blocked tasks [ 436.399251][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0 PREEMPT(full) [ 436.405103][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 [ 436.410082][ T26] Call Trace: [ 436.411699][ T26] [ 436.413027][ T26] dump_stack_lvl+0x99/0x250 [ 436.414868][ T26] ? __asan_memcpy+0x40/0x70 [ 436.417202][ T26] ? __pfx_dump_stack_lvl+0x10/0x10 [ 436.419733][ T26] ? __pfx__printk+0x10/0x10 [ 436.422097][ T26] panic+0x2db/0x790 [ 436.423908][ T26] ? __pfx_panic+0x10/0x10 [ 436.425743][ T26] ? nmi_backtrace_stall_check+0x433/0x440 [ 436.428371][ T26] ? irq_work_queue+0xc3/0x140 [ 436.430859][ T26] watchdog+0x102d/0x1030 [ 436.433129][ T26] ? watchdog+0x1de/0x1030 [ 436.435478][ T26] kthread+0x70e/0x8a0 [ 436.437762][ T26] ? __pfx_watchdog+0x10/0x10 [ 436.440259][ T26] ? __pfx_kthread+0x10/0x10 [ 436.442576][ T26] ? _raw_spin_unlock_irq+0x23/0x50 [ 436.445193][ T26] ? lockdep_hardirqs_on+0x9c/0x150 [ 436.448013][ T26] ? __pfx_kthread+0x10/0x10 [ 436.450611][ T26] ret_from_fork+0x3fc/0x770 [ 436.452815][ T26] ? __pfx_ret_from_fork+0x10/0x10 [ 436.455168][ T26] ? __pfx_kthread+0x10/0x10 [ 436.457230][ T26] ret_from_fork_asm+0x1a/0x30 [ 436.459477][ T26] [ 436.461268][ T26] Kernel Offset: disabled [ 436.463287][ T26] Rebooting in 86400 seconds.. VM DIAGNOSIS: 08:44:22 Registers: info registers vcpu 0 CPU#0 RAX=0000000000000072 RBX=0000000000000072 RCX=0000000000000000 RDX=00000000000003f8 RSI=0000000000000000 RDI=0000000000000020 RBP=00000000000003f8 RSP=ffffc900004d76d0 R8 =ffff888033be8237 R9 =1ffff1100677d046 R10=dffffc0000000000 R11=ffffffff85470f70 R12=dffffc0000000000 R13=ffffffff99ac38f1 R14=ffffffff99dc8780 R15=0000000000000000 RIP=ffffffff85470fec 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 ffff88808d252000 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=00007f2417659000 CR3=0000000042ba9000 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=0000000002000801 Opmask01=0000000000000001 Opmask02=00000000fff7ffff Opmask03=0000000000000000 Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000 ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 00007fff2aefbc70 0000003000000018 ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ffffffffffffffff ffffffff0f0e0d0c ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 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 7475636578650073 667265646e69622f 7665642f00736672 65646e69622f2e00 ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 515046405d400056 435740414b4c470a 5340410a00564357 40414b4c470a0b00 ZMM20=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 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