INFO: task udevd:5388 blocked for more than 143 seconds.
Not tainted 5.16.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:24248 pid: 5388 ppid: 2972 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
io_schedule+0x83/0x100 kernel/sched/core.c:8371
folio_wait_bit_common+0x8aa/0xe00 mm/filemap.c:1371
folio_wait_bit mm/filemap.c:1431 [inline]
folio_wait_locked include/linux/pagemap.h:851 [inline]
wait_on_page_locked include/linux/pagemap.h:863 [inline]
wait_on_page_read+0x103/0x3d0 mm/filemap.c:3430
do_read_cache_page+0x8b5/0xdc0 mm/filemap.c:3473
read_mapping_page include/linux/pagemap.h:651 [inline]
read_part_sector+0xd4/0x4d0 block/partitions/core.c:728
adfspart_check_ICS+0xc0/0xa70 block/partitions/acorn.c:360
check_partition block/partitions/core.c:149 [inline]
blk_add_partitions block/partitions/core.c:613 [inline]
bdev_disk_changed+0x789/0x16a0 block/partitions/core.c:699
blkdev_get_whole+0x32f/0x3d0 block/bdev.c:684
blkdev_get_by_dev+0x2ff/0xba0 block/bdev.c:826
blkdev_open+0x137/0x2f0 block/fops.c:502
do_dentry_open+0x78b/0x1020 fs/open.c:822
do_open fs/namei.c:3426 [inline]
path_openat+0x2896/0x3660 fs/namei.c:3559
do_filp_open+0x277/0x4f0 fs/namei.c:3586
do_sys_openat2+0x13b/0x500 fs/open.c:1212
do_sys_open fs/open.c:1228 [inline]
__do_sys_openat fs/open.c:1244 [inline]
__se_sys_openat fs/open.c:1239 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1239
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2946b2d697
RSP: 002b:00007ffca9f94d40 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00005589f6bc1fd0 RCX: 00007f2946b2d697
RDX: 00000000000a0800 RSI: 00005589f6babcb0 RDI: 00000000ffffff9c
RBP: 00005589f6babcb0 R08: 0000000000000001 R09: 0000000000000010
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 00005589f6baaa90 R14: 0000000000000001 R15: 00005589f6ba1910
INFO: task syz-executor.0:5533 blocked for more than 143 seconds.
Not tainted 5.16.0-rc4-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:26736 pid: 5533 ppid: 3639 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
blkdev_put+0xf8/0x7a0 block/bdev.c:915
blkdev_close+0x58/0x80 block/fops.c:516
__fput+0x3fc/0x870 fs/file_table.c:280
task_work_run+0x146/0x1c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x209/0x220 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300
do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f504c553b49
RSP: 002b:00007f504b0c9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f504c666f60 RCX: 00007f504c553b49
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
RBP: 00007f504c5ae012 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffcfac2ff9f R14: 00007f504b0c9300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8cb1dd00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by kworker/u4:3/516:
#0: ffff8880b9b395d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:478
#1: ffff8880b9b27888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x4c1/0x780 kernel/sched/psi.c:880
2 locks held by getty/3285:
#0: ffff8880244a5098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc90002b962e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6c5/0x1c60 drivers/tty/n_tty.c:2113
1 lock held by udevd/5388:
#0: ffff88801b142918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev+0xf7/0xba0 block/bdev.c:817
1 lock held by syz-executor.0/5533:
#0: ffff88801b142918 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xf8/0x7a0 block/bdev.c:915
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.16.0-rc4-syzkaller #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+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x16a/0x280 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc82/0xcd0 kernel/hung_task.c:295
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4644 Comm: kworker/u4:8 Not tainted 5.16.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy5 ieee80211_iface_work
RIP: 0010:ieee80211_bss_info_update+0x30f/0xbe0 net/mac80211/scan.c:170
Code: 20 49 c1 ee 03 49 bc 00 00 00 00 00 fc ff df 43 8a 04 26 84 c0 0f 85 c1 06 00 00 c7 84 24 88 00 00 00 00 00 00 00 49 8d 5d 1f <4c> 89 6c 24 38 49 83 c5 20 48 89 d8 48 c1 e8 03 42 8a 04 20 84 c0
RSP: 0018:ffffc900046c78a0 EFLAGS: 00000246
RAX: ffffc900046c7900 RBX: ffff88801f07e7c7 RCX: ffff88801bb98000
RDX: 0000000000000000 RSI: 0000000000000010 RDI: ffffc900046c792c
RBP: ffffc900046c79d0 R08: ffffffff899bf3b3 R09: ffffed100f65b1c0
R10: ffffed100f65b1c0 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff88801f07e7a8 R14: 1ffff920008d8f25 R15: ffff88807b2d8df8
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056288e752600 CR3: 000000000c88e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_rx_bss_info net/mac80211/ibss.c:1119 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1610 [inline]
ieee80211_ibss_rx_queued_mgmt+0x1690/0x2b30 net/mac80211/ibss.c:1639
ieee80211_iface_process_skb net/mac80211/iface.c:1468 [inline]
ieee80211_iface_work+0x709/0xc90 net/mac80211/iface.c:1522
process_one_work+0x853/0x1140 kernel/workqueue.c:2298
worker_thread+0xac1/0x1320 kernel/workqueue.c:2445
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 49 c1 ee 03 shr $0x3,%r14
4: 49 bc 00 00 00 00 00 movabs $0xdffffc0000000000,%r12
b: fc ff df
e: 43 8a 04 26 mov (%r14,%r12,1),%al
12: 84 c0 test %al,%al
14: 0f 85 c1 06 00 00 jne 0x6db
1a: c7 84 24 88 00 00 00 movl $0x0,0x88(%rsp)
21: 00 00 00 00
25: 49 8d 5d 1f lea 0x1f(%r13),%rbx
* 29: 4c 89 6c 24 38 mov %r13,0x38(%rsp) <-- trapping instruction
2e: 49 83 c5 20 add $0x20,%r13
32: 48 89 d8 mov %rbx,%rax
35: 48 c1 e8 03 shr $0x3,%rax
39: 42 8a 04 20 mov (%rax,%r12,1),%al
3d: 84 c0 test %al,%al