syzkaller login: [ 92.134139][ T9] cfg80211: failed to load regulatory.db
Warning: Permanently added '[localhost]:10888' (ED25519) to the list of known hosts.
executing program
[ 212.945320][ T5347] loop0: detected capacity change from 0 to 32768
[ 435.164221][ T26] INFO: task kworker/u4:4:68 blocked for more than 143 seconds.
[ 435.167924][ T26] Not tainted 6.15.0-syzkaller-13473-gc0c9379f235d #0
[ 435.172139][ T26] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 435.185892][ T26] task:kworker/u4:4 state:D stack:20808 pid:68 tgid:68 ppid:2 task_flags:0x4208060 flags:0x00004000
[ 435.204197][ T26] Workqueue: writeback wb_workfn (flush-7:0)
[ 435.206970][ T26] Call Trace:
[ 435.208290][ T26]
[ 435.209624][ T26] __schedule+0x16f5/0x4d00
[ 435.211784][ T26] ? blk_mq_flush_plug_list+0x48b/0x550
[ 435.223850][ T26] ? __pfx_blk_mq_flush_plug_list+0x10/0x10
[ 435.226556][ T26] ? schedule+0x165/0x360
[ 435.228397][ T26] ? __pfx___schedule+0x10/0x10
[ 435.230600][ T26] ? schedule+0x91/0x360
[ 435.232495][ T26] schedule+0x165/0x360
[ 435.244419][ T26] schedule_preempt_disabled+0x13/0x30
[ 435.246742][ T26] __mutex_lock+0x724/0xe80
[ 435.248665][ T26] ? __mutex_lock+0x51b/0xe80
[ 435.250866][ T26] ? jfs_commit_inode+0x1ca/0x530
[ 435.253532][ T26] ? __pfx___mutex_lock+0x10/0x10
[ 435.273872][ T26] ? metapage_writepages+0xae/0x100
[ 435.276287][ T26] ? __lock_acquire+0xab9/0xd20
[ 435.278545][ T26] jfs_commit_inode+0x1ca/0x530
[ 435.280858][ T26] ? __pfx_jfs_commit_inode+0x10/0x10
[ 435.283441][ T26] jfs_write_inode+0x145/0x220
[ 435.295121][ T26] __writeback_single_inode+0x6f1/0xff0
[ 435.298709][ T26] writeback_sb_inodes+0x6b5/0x1000
[ 435.301808][ T26] ? __pfx_writeback_sb_inodes+0x10/0x10
[ 435.316169][ T26] ? __pfx___up_read+0x10/0x10
[ 435.318262][ T26] __writeback_inodes_wb+0x111/0x240
[ 435.320609][ T26] wb_writeback+0x44f/0xaf0
[ 435.322651][ T26] ? queue_io+0x391/0x590
[ 435.334300][ T26] ? __pfx_wb_writeback+0x10/0x10
[ 435.337172][ T26] wb_workfn+0xaef/0xef0
[ 435.339860][ T26] ? __pfx_wb_workfn+0x10/0x10
[ 435.343016][ T26] ? __lock_acquire+0xab9/0xd20
[ 435.363914][ T26] ? process_scheduled_works+0x9ef/0x17b0
[ 435.366685][ T26] ? _raw_spin_unlock_irq+0x23/0x50
[ 435.369093][ T26] ? process_scheduled_works+0x9ef/0x17b0
[ 435.371637][ T26] ? process_scheduled_works+0x9ef/0x17b0
[ 435.383897][ T26] process_scheduled_works+0xae1/0x17b0
[ 435.386606][ T26] ? __pfx_process_scheduled_works+0x10/0x10
[ 435.389853][ T26] worker_thread+0x8a0/0xda0
[ 435.392559][ T26] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 435.404685][ T26] ? __kthread_parkme+0x7b/0x200
[ 435.407334][ T26] kthread+0x70e/0x8a0
[ 435.409460][ T26] ? __pfx_worker_thread+0x10/0x10
[ 435.411778][ T26] ? __pfx_kthread+0x10/0x10
[ 435.413649][ T26] ? _raw_spin_unlock_irq+0x23/0x50
[ 435.433837][ T26] ? lockdep_hardirqs_on+0x9c/0x150
[ 435.436157][ T26] ? __pfx_kthread+0x10/0x10
[ 435.438243][ T26] ret_from_fork+0x3f9/0x770
[ 435.440349][ T26] ? __pfx_ret_from_fork+0x10/0x10
[ 435.442899][ T26] ? __pfx_kthread+0x10/0x10
[ 435.454241][ T26] ret_from_fork_asm+0x1a/0x30
[ 435.456252][ T26]
[ 435.458872][ T26]
[ 435.458872][ T26] Showing all locks held in the system:
[ 435.462840][ T26] 1 lock held by khungtaskd/26:
[ 435.474345][ T26] #0: ffffffff8e13f060 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 435.478515][ T26] 4 locks held by kworker/u4:4/68:
[ 435.480967][ T26] #0: ffff888030f5e148 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
[ 435.503850][ T26] #1: ffffc9000122fbc0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x9ef/0x17b0
[ 435.508925][ T26] #2: ffff8880369240e0 (&type->s_umount_key#42){.+.+}-{4:4}, at: super_trylock_shared+0x20/0xf0
[ 435.524365][ T26] #3: ffff888043abafe0 (&jfs_ip->commit_mutex){+.+.}-{4:4}, at: jfs_commit_inode+0x1ca/0x530
[ 435.528614][ T26] 2 locks held by getty/5116:
[ 435.530600][ T26] #0: ffff888000d410a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 435.544184][ T26] #1: ffffc900024be2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
[ 435.548840][ T26] 4 locks held by syz-executor770/5347:
[ 435.552044][ T26]
[ 435.553311][ T26] =============================================
[ 435.553311][ T26]
[ 435.573850][ T26] NMI backtrace for cpu 0
[ 435.573927][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.15.0-syzkaller-13473-gc0c9379f235d #0 PREEMPT(full)
[ 435.573943][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 435.573950][ T26] Call Trace:
[ 435.573960][ T26]
[ 435.573967][ T26] dump_stack_lvl+0x189/0x250
[ 435.573990][ T26] ? __wake_up_klogd+0xd9/0x110
[ 435.574008][ T26] ? __pfx_dump_stack_lvl+0x10/0x10
[ 435.574026][ T26] ? __pfx__printk+0x10/0x10
[ 435.574049][ T26] nmi_cpu_backtrace+0x39e/0x3d0
[ 435.574102][ T26] ? __pfx_nmi_cpu_backtrace+0x10/0x10
[ 435.574118][ T26] ? _printk+0xcf/0x120
[ 435.574136][ T26] ? __pfx__printk+0x10/0x10
[ 435.574151][ T26] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 435.574169][ T26] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 435.574186][ T26] watchdog+0xfee/0x1030
[ 435.574207][ T26] ? watchdog+0x1de/0x1030
[ 435.574229][ T26] kthread+0x70e/0x8a0
[ 435.574248][ T26] ? __pfx_watchdog+0x10/0x10
[ 435.574264][ T26] ? __pfx_kthread+0x10/0x10
[ 435.574279][ T26] ? _raw_spin_unlock_irq+0x23/0x50
[ 435.574299][ T26] ? lockdep_hardirqs_on+0x9c/0x150
[ 435.574317][ T26] ? __pfx_kthread+0x10/0x10
[ 435.574332][ T26] ret_from_fork+0x3f9/0x770
[ 435.574355][ T26] ? __pfx_ret_from_fork+0x10/0x10
[ 435.574377][ T26] ? __pfx_kthread+0x10/0x10
[ 435.574393][ T26] ret_from_fork_asm+0x1a/0x30
[ 435.574418][ T26]
[ 435.574426][ T26] Kernel panic - not syncing: hung_task: blocked tasks
[ 435.640056][ T26] CPU: 0 UID: 0 PID: 26 Comm: khungtaskd Not tainted 6.15.0-syzkaller-13473-gc0c9379f235d #0 PREEMPT(full)
[ 435.645023][ T26] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 435.650834][ T26] Call Trace:
[ 435.652556][ T26]
[ 435.653831][ T26] dump_stack_lvl+0x99/0x250
[ 435.655900][ T26] ? __asan_memcpy+0x40/0x70
[ 435.657875][ T26] ? __pfx_dump_stack_lvl+0x10/0x10
[ 435.660202][ T26] ? __pfx__printk+0x10/0x10
[ 435.662387][ T26] panic+0x2db/0x790
[ 435.664170][ T26] ? __pfx_panic+0x10/0x10
[ 435.666418][ T26] ? nmi_backtrace_stall_check+0x433/0x440
[ 435.669498][ T26] ? irq_work_queue+0xc3/0x140
[ 435.671870][ T26] watchdog+0x102d/0x1030
[ 435.673837][ T26] ? watchdog+0x1de/0x1030
[ 435.675911][ T26] kthread+0x70e/0x8a0
[ 435.677775][ T26] ? __pfx_watchdog+0x10/0x10
[ 435.680255][ T26] ? __pfx_kthread+0x10/0x10
[ 435.682938][ T26] ? _raw_spin_unlock_irq+0x23/0x50
[ 435.685712][ T26] ? lockdep_hardirqs_on+0x9c/0x150
[ 435.688306][ T26] ? __pfx_kthread+0x10/0x10
[ 435.690282][ T26] ret_from_fork+0x3f9/0x770
[ 435.692445][ T26] ? __pfx_ret_from_fork+0x10/0x10
[ 435.694711][ T26] ? __pfx_kthread+0x10/0x10
[ 435.696797][ T26] ret_from_fork_asm+0x1a/0x30
[ 435.698903][ T26]
[ 435.700685][ T26] Kernel Offset: disabled
[ 435.702940][ T26] Rebooting in 86400 seconds..
VM DIAGNOSIS:
03:37:39 Registers:
info registers vcpu 0
CPU#0
RAX=1ffffffff33b9060 RBX=00000000000003fd RCX=0000000000000000 RDX=00000000000003fd
RSI=0000000000000000 RDI=0000000000000020 RBP=ffffffff99dc8a10 RSP=ffffc900004d7670
R8 =ffff888033c18237 R9 =1ffff11006783046 R10=dffffc0000000000 R11=ffffffff8546f6a0
R12=dffffc0000000000 R13=0000000000000000 R14=ffffffff99dc8780 R15=0000000000000000
RIP=ffffffff8546f717 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=000055f7da7ba168 CR3=0000000043f8b000 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=0000000010444000 Opmask01=0000000000000001 Opmask02=00000000fffffbff Opmask03=0000000000000000
Opmask04=0000000000000000 Opmask05=0000000000000000 Opmask06=0000000000000000 Opmask07=0000000000000000
ZMM00=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 f1fb0fb6770b4f79 da80008ab04c4a4b
ZMM01=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 e5d5c2b2bdd0b89d e36252f5f27688e3
ZMM02=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0c8b5ac3aafb3d0b 4806c0c19a9b49fe
ZMM03=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 1451f54b3a52fba1 fb790d5c648f0edb
ZMM04=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000100
ZMM05=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000040
ZMM06=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 86ef0beb31ee7757 3cae48443be76e9c
ZMM07=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 c80db59b765fec9a 5b59a02c09279530
ZMM08=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 09a40cbd655bc73f 2b332983aacb1837
ZMM09=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 059d56b7346869f7 1c7ea6719064147e
ZMM10=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 58db0f14798dc757 2a937500959983cb
ZMM11=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 768f06c4d413fbfd dd7eb0ca0301cee7
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 0000000000000000 0000000000000000 0000000000000000 0000000000002e2e
ZMM18=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
ZMM19=0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000 0000000000000000
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