INFO: task udevd:14284 blocked for more than 143 seconds.
Not tainted 5.19.0-rc3-syzkaller-00336-g0840a7914caa #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:24896 pid:14284 ppid: 2975 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6458
schedule+0xeb/0x1b0 kernel/sched/core.c:6530
io_schedule+0x83/0x100 kernel/sched/core.c:8645
folio_wait_bit_common+0x97a/0x1490 mm/filemap.c:1324
folio_wait_bit mm/filemap.c:1473 [inline]
folio_wait_locked include/linux/pagemap.h:1028 [inline]
do_read_cache_folio+0x634/0xd10 mm/filemap.c:3530
do_read_cache_page mm/filemap.c:3602 [inline]
read_cache_page+0x57/0x250 mm/filemap.c:3611
read_mapping_page include/linux/pagemap.h:759 [inline]
read_part_sector+0xd5/0x450 block/partitions/core.c:715
adfspart_check_ICS+0xd4/0x750 block/partitions/acorn.c:360
check_partition block/partitions/core.c:147 [inline]
blk_add_partitions block/partitions/core.c:600 [inline]
bdev_disk_changed+0x75d/0x13e0 block/partitions/core.c:686
blkdev_get_whole+0x329/0x3b0 block/bdev.c:686
blkdev_get_by_dev+0x30b/0xa40 block/bdev.c:823
blkdev_open+0x128/0x2e0 block/fops.c:481
do_dentry_open+0x789/0x1040 fs/open.c:848
do_open fs/namei.c:3520 [inline]
path_openat+0x26c0/0x2ec0 fs/namei.c:3653
do_filp_open+0x277/0x4f0 fs/namei.c:3680
do_sys_openat2+0x13b/0x500 fs/open.c:1278
do_sys_open fs/open.c:1294 [inline]
__do_sys_openat fs/open.c:1310 [inline]
__se_sys_openat fs/open.c:1305 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1305
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7feb5fd25697
RSP: 002b:00007ffe85827640 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055c259316190 RCX: 00007feb5fd25697
RDX: 00000000000a0800 RSI: 000055c2592f18c0 RDI: 00000000ffffff9c
RBP: 000055c2592f18c0 R08: 0000000000000001 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055c259314280 R14: 0000000000000001 R15: 000055c2592f0910
INFO: task syz-executor.3:17462 blocked for more than 143 seconds.
Not tainted 5.19.0-rc3-syzkaller-00336-g0840a7914caa #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27840 pid:17462 ppid: 3643 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5146 [inline]
__schedule+0x957/0xe20 kernel/sched/core.c:6458
schedule+0xeb/0x1b0 kernel/sched/core.c:6530
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6589
__mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679
__mutex_lock kernel/locking/mutex.c:747 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799
blkdev_put+0x100/0x730 block/bdev.c:912
blkdev_close+0x55/0x80 block/fops.c:495
__fput+0x3b9/0x820 fs/file_table.c:317
task_work_run+0x146/0x1c0 kernel/task_work.c:177
get_signal+0x15d9/0x1780 kernel/signal.c:2634
arch_do_signal_or_restart+0x8d/0x750 arch/x86/kernel/signal.c:869
exit_to_user_mode_loop+0x74/0x160 kernel/entry/common.c:166
exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f6aebe89109
RSP: 002b:00007f6aecf11168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f6aebf9c030 RCX: 00007f6aebe89109
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
RBP: 00007f6aebee305d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffeabe917bf R14: 00007f6aecf11300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8cb1e820 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3290:
#0: ffff88814a989098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc90002d162e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2124
3 locks held by kworker/u4:10/3976:
1 lock held by udevd/14284:
#0: ffff88801e5a5118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xfd/0xa40 block/bdev.c:814
1 lock held by syz-executor.3/17462:
#0: ffff88801e5a5118 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0x100/0x730 block/bdev.c:912
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.19.0-rc3-syzkaller-00336-g0840a7914caa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x473/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x168/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xcf9/0xd40 kernel/hung_task.c:369
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 12429 Comm: kworker/1:12 Not tainted 5.19.0-rc3-syzkaller-00336-g0840a7914caa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_power_efficient wg_ratelimiter_gc_entries
RIP: 0010:check_preemption_disabled+0x4/0x120 lib/smp_processor_id.c:13
Code: c7 c7 40 20 97 8a e8 3b 01 00 00 65 ff 0d 30 40 d8 75 5b c3 cc cc 48 c7 c7 a0 91 e9 8a 48 c7 c6 e0 91 e9 8a eb 00 41 57 41 56 <41> 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 65
RSP: 0018:ffffc900095dfa48 EFLAGS: 00000046
RAX: 1ffff11003129400 RBX: ffffc900095dfac0 RCX: 0000000080000002
RDX: 0000000000000000 RSI: ffffffff8a8d2fa0 RDI: ffffffff8ae99200
RBP: ffffc900095dfbc0 R08: dffffc0000000000 R09: fffffbfff1c070d6
R10: fffffbfff1c070d6 R11: 1ffffffff1c070d5 R12: dffffc0000000000
R13: 1ffff920012bbf54 R14: ffffffff8d41a6f8 R15: 0000000000000246
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd526893c8 CR3: 000000000c88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lockdep_recursion_inc kernel/locking/lockdep.c:461 [inline]
lock_acquire+0x16d/0x400 kernel/locking/lockdep.c:5664
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:349 [inline]
wg_ratelimiter_gc_entries+0x5c/0x4a0 drivers/net/wireguard/ratelimiter.c:63
process_one_work+0x81c/0xd10 kernel/workqueue.c:2289
worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
kthread+0x266/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: c7 c7 40 20 97 8a mov $0x8a972040,%edi
6: e8 3b 01 00 00 callq 0x146
b: 65 ff 0d 30 40 d8 75 decl %gs:0x75d84030(%rip) # 0x75d84042
12: 5b pop %rbx
13: c3 retq
14: cc int3
15: cc int3
16: 48 c7 c7 a0 91 e9 8a mov $0xffffffff8ae991a0,%rdi
1d: 48 c7 c6 e0 91 e9 8a mov $0xffffffff8ae991e0,%rsi
24: eb 00 jmp 0x26
26: 41 57 push %r15
28: 41 56 push %r14
* 2a: 41 54 push %r12 <-- trapping instruction
2c: 53 push %rbx
2d: 48 83 ec 10 sub $0x10,%rsp
31: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax
38: 00 00
3a: 48 89 44 24 08 mov %rax,0x8(%rsp)
3f: 65 gs