INFO: task udevd:24161 blocked for more than 143 seconds.
Not tainted 6.3.0-rc1-syzkaller-00274-g134231664868 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:26024 pid:24161 ppid:4441 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5304 [inline]
__schedule+0xc91/0x57d0 kernel/sched/core.c:6622
schedule+0xde/0x1a0 kernel/sched/core.c:6698
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6757
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
blkdev_get_by_dev.part.0+0x9b/0xb80 block/bdev.c:735
blkdev_get_by_dev+0x6f/0x90 block/bdev.c:778
blkdev_open+0x140/0x2c0 block/fops.c:493
do_dentry_open+0x6cc/0x13f0 fs/open.c:920
do_open fs/namei.c:3560 [inline]
path_openat+0x1baa/0x2750 fs/namei.c:3715
do_filp_open+0x1ba/0x410 fs/namei.c:3742
do_sys_openat2+0x16d/0x4c0 fs/open.c:1348
do_sys_open fs/open.c:1364 [inline]
__do_sys_openat fs/open.c:1380 [inline]
__se_sys_openat fs/open.c:1375 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1375
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7ff46d525697
RSP: 002b:00007fff75b581d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005620cce69230 RCX: 00007ff46d525697
RDX: 00000000000a0800 RSI: 00005620cce44620 RDI: 00000000ffffff9c
RBP: 00005620cce44620 R08: 0000000000000001 R09: 00007fff75bdb080
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 00005620cce5d7c0 R14: 0000000000000001 R15: 00005620cce43910
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c7954b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c7951b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8c796000 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6495
2 locks held by getty/4753:
#0: ffff88802ba2c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
2 locks held by kworker/u4:10/5504:
#0: ffff8880b993c298 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:539
#1: ffff8880b9928808 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x216/0x950 kernel/sched/psi.c:964
1 lock held by udevd/24159:
#0: ffff88801e4334c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb80 block/bdev.c:735
1 lock held by udevd/24161:
#0: ffff88801e5234c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb80 block/bdev.c:735
1 lock held by syz-executor.1/26775:
#0: ffff88801e5234c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xc0/0x770 block/bdev.c:833
1 lock held by syz-executor.1/26790:
#0: ffff88801e5234c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb80 block/bdev.c:735
1 lock held by syz-executor.1/26882:
#0: ffff88801e5234c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb80 block/bdev.c:735
1 lock held by syz-executor.1/26883:
#0: ffff88801e5234c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb80 block/bdev.c:735
1 lock held by syz-executor.0/26890:
#0: ffff88801e4334c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb80 block/bdev.c:735
1 lock held by syz-executor.0/26896:
#0: ffff88801e4334c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xc0/0x770 block/bdev.c:833
1 lock held by syz-executor.0/26909:
#0: ffff88801e4334c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb80 block/bdev.c:735
1 lock held by syz-executor.1/26940:
#0: ffff88801e5234c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb80 block/bdev.c:735
1 lock held by syz-executor.1/26941:
#0: ffff88801e5234c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x9b/0xb80 block/bdev.c:735
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc1-syzkaller-00274-g134231664868 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2a4/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe16/0x1150 kernel/hung_task.c:379
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5504 Comm: kworker/u4:10 Not tainted 6.3.0-rc1-syzkaller-00274-g134231664868 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Workqueue: phy5 ieee80211_iface_work
RIP: 0010:__sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:339
Code: 41 bd 03 00 00 00 4c 8b 75 00 31 db 4d 85 f6 74 1e 48 8b 74 dd 10 4c 89 e2 4c 89 ef 48 83 c3 01 48 8b 4c 24 28 e8 1c fe ff ff <49> 39 de 75 e2 5b 5d 41 5c 41 5d 41 5e c3 48 83 f8 40 41 bd 07 00
RSP: 0018:ffffc90005eaf548 EFLAGS: 00000293
RAX: 0000000000000000 RBX: 000000000000001e RCX: ffffffff899622f9
RDX: ffff8880784b57c0 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffffffff8b7e5880 R08: 0000000000000001 R09: 00000000000000d9
R10: 0000000000000000 R11: 0000000000094001 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000000000020 R15: 0000000000000006
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c02792b460 CR3: 0000000026574000 CR4: 0000000000350ee0
Call Trace:
_ieee802_11_parse_elems_full+0x289/0x3130 net/mac80211/util.c:1015
ieee802_11_parse_elems_full+0x785/0x1340 net/mac80211/util.c:1625
ieee802_11_parse_elems_crc.constprop.0+0x99/0xd0 net/mac80211/ieee80211_i.h:2262
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2269 [inline]
ieee80211_bss_info_update+0x410/0xb50 net/mac80211/scan.c:212
ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x19c9/0x3200 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1583 [inline]
ieee80211_iface_work+0xa4d/0xd70 net/mac80211/iface.c:1637
process_one_work+0x991/0x1710 kernel/workqueue.c:2390
worker_thread+0x669/0x1090 kernel/workqueue.c:2537
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308