syzkaller login: [ 97.240843][ T53] cfg80211: failed to load regulatory.db
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000)
Warning: Permanently added '[localhost]:9220' (ED25519) to the list of known hosts.
2026/04/09 07:41:13 parsed 1 programs
[ 382.860811][ T5371] cgroup: Unknown subsys name 'net'
[ 382.916861][ T5371] cgroup: Unknown subsys name 'cpuset'
[ 382.926728][ T5371] cgroup: Unknown subsys name 'rlimit'
[ 389.075319][ T1315] ieee802154 phy0 wpan0: encryption failed: -22
[ 389.078082][ T1315] ieee802154 phy1 wpan1: encryption failed: -22
[ 438.373622][ T1010] ata1.00: exception Emask 0x0 SAct 0x800 SErr 0x0 action 0x6 frozen
[ 438.378008][ T1010] ata1.00: failed command: WRITE FPDMA QUEUED
[ 438.380716][ T1010] ata1.00: cmd 61/00:58:76:56:05/20:00:00:00:00/40 tag 11 ncq dma 4194304 ou
[ 438.380716][ T1010] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 438.389520][ T1010] ata1.00: status: { DRDY }
[ 438.393943][ T1010] ata1: hard resetting link
[ 438.714985][ T1010] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 438.719276][ T1010] ata1.00: configured for UDMA/100
[ 438.722817][ T1010] ata1: EH complete
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000)
[ 450.515599][ T1315] ieee802154 phy0 wpan0: encryption failed: -22
[ 450.519202][ T1315] ieee802154 phy1 wpan1: encryption failed: -22
[ 499.173364][ T1010] ata1.00: exception Emask 0x0 SAct 0x200000 SErr 0x0 action 0x6 frozen
[ 499.176819][ T1010] ata1.00: failed command: WRITE FPDMA QUEUED
[ 499.179553][ T1010] ata1.00: cmd 61/00:a8:36:c1:05/20:00:00:00:00/40 tag 21 ncq dma 4194304 ou
[ 499.179553][ T1010] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
[ 499.188060][ T1010] ata1.00: status: { DRDY }
[ 499.190194][ T1010] ata1: hard resetting link
[ 499.516356][ T1010] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 499.520470][ T1010] ata1.00: configured for UDMA/100
[ 499.523307][ T1010] ata1: EH complete
qemu-system-x86_64: ahci: PRDT length for NCQ command (0x0) is smaller than the requested size (0x400000)
[ 511.956823][ T1315] ieee802154 phy0 wpan0: encryption failed: -22
[ 511.959808][ T1315] ieee802154 phy1 wpan1: encryption failed: -22
[ 546.514491][ T25] INFO: task jbd2/sda1-8:4682 blocked for more than 143 seconds.
[ 546.517438][ T25] Not tainted syzkaller #0
[ 546.519294][ T25] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 546.538519][ T25] task:jbd2/sda1-8 state:D stack:24144 pid:4682 tgid:4682 ppid:2 task_flags:0x240040 flags:0x00080000
[ 546.545134][ T25] Call Trace:
[ 546.547142][ T25]
[ 546.549667][ T25] __schedule+0x15dd/0x52d0
[ 546.551891][ T25] ? __lock_acquire+0x6b5/0x2cf0
[ 546.555079][ T25] ? __pfx___schedule+0x10/0x10
[ 546.557537][ T25] ? schedule+0x90/0x360
[ 546.559473][ T25] schedule+0x164/0x360
[ 546.561613][ T25] io_schedule+0x7f/0xd0
[ 546.564255][ T25] bit_wait_io+0x11/0xd0
[ 546.566080][ T25] __wait_on_bit+0xb9/0x310
[ 546.568176][ T25] ? __pfx_bit_wait_io+0x10/0x10
[ 546.570395][ T25] out_of_line_wait_on_bit+0x13b/0x190
[ 546.573486][ T25] ? __pfx_bit_wait_io+0x10/0x10
[ 546.575723][ T25] ? __pfx_out_of_line_wait_on_bit+0x10/0x10
[ 546.578430][ T25] ? __pfx_wake_bit_function+0x10/0x10
[ 546.580849][ T25] ? __wait_on_buffer+0xe/0x80
[ 546.583622][ T25] jbd2_journal_commit_transaction+0x3599/0x5bf0
[ 546.586326][ T25] ? __pfx_jbd2_journal_commit_transaction+0x10/0x10
[ 546.589248][ T25] ? __lock_acquire+0x6b5/0x2cf0
[ 546.591374][ T25] ? do_raw_spin_lock+0x12b/0x2f0
[ 546.594173][ T25] ? do_raw_spin_lock+0x12b/0x2f0
[ 546.596372][ T25] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 546.598874][ T25] ? lockdep_hardirqs_on+0x7a/0x110
[ 546.601267][ T25] ? _raw_spin_unlock_irqrestore+0x4c/0x80
[ 546.604389][ T25] ? __timer_delete_sync+0x4a4/0x520
[ 546.606703][ T25] kjournald2+0x3e0/0x760
[ 546.608661][ T25] ? __pfx_kjournald2+0x10/0x10
[ 546.610786][ T25] ? __pfx_autoremove_wake_function+0x10/0x10
[ 546.614010][ T25] ? __kthread_parkme+0x7a/0x1f0
[ 546.616046][ T25] kthread+0x388/0x470
[ 546.617742][ T25] ? __pfx_kjournald2+0x10/0x10
[ 546.620116][ T25] ? __pfx_kthread+0x10/0x10
[ 546.622807][ T25] ret_from_fork+0x51e/0xb90
[ 546.625613][ T25] ? __pfx_ret_from_fork+0x10/0x10
[ 546.628012][ T25] ? __switch_to+0xc7d/0x1450
[ 546.630040][ T25] ? __pfx_kthread+0x10/0x10
[ 546.632569][ T25] ret_from_fork_asm+0x1a/0x30
[ 546.636529][ T25]
[ 546.638258][ T25]
[ 546.638258][ T25] Showing all locks held in the system:
[ 546.641634][ T25] 4 locks held by kworker/0:1/10:
[ 546.644983][ T25] #0: ffff88801aca6948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0xa52/0x18c0
[ 546.650116][ T25] #1: ffffc9000023fc40 ((work_completion)(&(&ap->scsi_rescan_task)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa8d/0x18c0
[ 546.657342][ T25] #2: ffff8880330fc8e8 (&ap->scsi_scan_mutex){+.+.}-{4:4}, at: ata_scsi_dev_rescan+0x3e/0x3f0
[ 546.662712][ T25] #3: ffff8880338643c8 (&dev->mutex){....}-{4:4}, at: scsi_rescan_device+0x31/0x2a0
[ 546.667117][ T25] 1 lock held by khungtaskd/25:
[ 546.669372][ T25] #0: ffffffff8e75e5a0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 546.674665][ T25] 2 locks held by getty/5110:
[ 546.677113][ T25] #0: ffff8880322620a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 546.681701][ T25] #1: ffffc90000d582f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
[ 546.686559][ T25] 1 lock held by sh/5377:
[ 546.688421][ T25] #0: ffff88803f7c4e60 (&sig->cred_guard_mutex){+.+.}-{4:4}, at: bprm_execve+0xb7/0x1460
[ 546.693911][ T25]
[ 546.695434][ T25] =============================================
[ 546.695434][ T25]
[ 546.699557][ T25] NMI backtrace for cpu 0
[ 546.699599][ T25] CPU: 0 UID: 0 PID: 25 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 546.699612][ T25] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 546.699619][ T25] Call Trace:
[ 546.699628][ T25]
[ 546.699635][ T25] dump_stack_lvl+0xe8/0x150
[ 546.699657][ T25] nmi_cpu_backtrace+0x274/0x2d0
[ 546.699670][ T25] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 546.699688][ T25] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 546.699708][ T25] sys_info+0x135/0x170
[ 546.699724][ T25] watchdog+0xfd9/0x1030
[ 546.699739][ T25] ? watchdog+0x21a/0x1030
[ 546.699761][ T25] kthread+0x388/0x470
[ 546.699774][ T25] ? __pfx_watchdog+0x10/0x10
[ 546.699784][ T25] ? __pfx_kthread+0x10/0x10
[ 546.699797][ T25] ret_from_fork+0x51e/0xb90
[ 546.699816][ T25] ? __pfx_ret_from_fork+0x10/0x10
[ 546.699829][ T25] ? __switch_to+0xc7d/0x1450
[ 546.699845][ T25] ? __pfx_kthread+0x10/0x10
[ 546.699857][ T25] ret_from_fork_asm+0x1a/0x30
[ 546.699883][ T25]
[ 546.753441][ T25] Kernel panic - not syncing: hung_task: blocked tasks
[ 546.756470][ T25] CPU: 0 UID: 0 PID: 25 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full)
[ 546.761215][ T25] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[ 546.766650][ T25] Call Trace:
[ 546.768099][ T25]
[ 546.769203][ T25] vpanic+0x56c/0xa60
[ 546.770749][ T25] ? __pfx___schedule+0x10/0x10
[ 546.772847][ T25] ? __pfx_vpanic+0x10/0x10
[ 546.774786][ T25] ? __pfx_console_unlock+0x10/0x10
[ 546.777159][ T25] panic+0xc5/0xd0
[ 546.778906][ T25] ? __pfx_panic+0x10/0x10
[ 546.780978][ T25] ? preempt_schedule_thunk+0x16/0x30
[ 546.783682][ T25] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[ 546.786826][ T25] watchdog+0x1023/0x1030
[ 546.789011][ T25] ? watchdog+0x21a/0x1030
[ 546.790967][ T25] kthread+0x388/0x470
[ 546.792833][ T25] ? __pfx_watchdog+0x10/0x10
[ 546.794990][ T25] ? __pfx_kthread+0x10/0x10
[ 546.797376][ T25] ret_from_fork+0x51e/0xb90
[ 546.800031][ T25] ? __pfx_ret_from_fork+0x10/0x10
[ 546.802766][ T25] ? __switch_to+0xc7d/0x1450
[ 546.804887][ T25] ? __pfx_kthread+0x10/0x10
[ 546.806887][ T25] ret_from_fork_asm+0x1a/0x30
[ 546.808988][ T25]
[ 546.810644][ T25] Kernel Offset: disabled
[ 546.812890][ T25] Rebooting in 86400 seconds..