INFO: task udevd:13479 blocked for more than 143 seconds.
Not tainted 6.7.0-syzkaller-13004-g4fbbed787267 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:22128 pid:13479 tgid:13479 ppid:4499 flags:0x00004002
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x4960 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
io_schedule+0x8c/0x100 kernel/sched/core.c:9023
folio_wait_bit_common+0x881/0x12b0 mm/filemap.c:1274
folio_put_wait_locked mm/filemap.c:1438 [inline]
do_read_cache_folio+0xb9/0x810 mm/filemap.c:3685
read_mapping_folio include/linux/pagemap.h:894 [inline]
read_part_sector+0xcf/0x340 block/partitions/core.c:721
adfspart_check_ICS+0xd9/0x9a0 block/partitions/acorn.c:360
check_partition block/partitions/core.c:138 [inline]
blk_add_partitions block/partitions/core.c:588 [inline]
bdev_disk_changed+0x7d0/0x1460 block/partitions/core.c:692
blkdev_get_whole+0x2ed/0x370 block/bdev.c:661
bdev_open_by_dev+0x376/0x890 block/bdev.c:871
blkdev_open+0x16e/0x3c0 block/fops.c:615
do_dentry_open+0x8ff/0x1590 fs/open.c:953
do_open fs/namei.c:3641 [inline]
path_openat+0x2823/0x31e0 fs/namei.c:3798
do_filp_open+0x234/0x490 fs/namei.c:3825
do_sys_openat2+0x13e/0x1d0 fs/open.c:1404
do_sys_open fs/open.c:1419 [inline]
__do_sys_openat fs/open.c:1435 [inline]
__se_sys_openat fs/open.c:1430 [inline]
__x64_sys_openat+0x247/0x290 fs/open.c:1430
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf5/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7fc15d1169a4
RSP: 002b:00007fffa14cd0c0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055d820a17d00 RCX: 00007fc15d1169a4
RDX: 00000000000a0800 RSI: 000055d820a1e9d0 RDI: 00000000ffffff9c
RBP: 000055d820a1e9d0 R08: 0000000000000001 R09: 00007fffa14dc0b0
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055d8209ffb00 R14: 0000000000000001 R15: 000055d8209f6910
</TASK>
INFO: task syz-executor.3:7488 blocked for more than 144 seconds.
Not tainted 6.7.0-syzkaller-13004-g4fbbed787267 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:25520 pid:7488 tgid:7486 ppid:5092 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x4960 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6874
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:752
bdev_release+0x114/0x910 block/bdev.c:969
blkdev_release+0x3b/0x40 block/fops.c:631
__fput+0x428/0x890 fs/file_table.c:376
task_work_run+0x24a/0x300 kernel/task_work.c:180
get_signal+0x166e/0x1840 kernel/signal.c:2669
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
syscall_exit_to_user_mode+0xc8/0x370 kernel/entry/common.c:212
do_syscall_64+0x102/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f14cba7cda9
RSP: 002b:00007f14cc7d70c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007f14cbbabf80 RCX: 00007f14cba7cda9
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000004
RBP: 00007f14cbac947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f14cbbabf80 R15: 00007ffdef0aa578
</TASK>
INFO: task syz-executor.3:7489 blocked for more than 144 seconds.
Not tainted 6.7.0-syzkaller-13004-g4fbbed787267 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:22704 pid:7489 tgid:7486 ppid:5092 flags:0x00004006
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0x177f/0x4960 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6802 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6817
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6874
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd60 kernel/locking/mutex.c:752
bdev_release+0x114/0x910 block/bdev.c:969
blkdev_release+0x3b/0x40 block/fops.c:631
__fput+0x428/0x890 fs/file_table.c:376
task_work_run+0x24a/0x300 kernel/task_work.c:180
get_signal+0x166e/0x1840 kernel/signal.c:2669
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:310
exit_to_user_mode_loop kernel/entry/common.c:105 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline]
syscall_exit_to_user_mode+0xc8/0x370 kernel/entry/common.c:212
do_syscall_64+0x102/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f14cba7cda9
RSP: 002b:00007f14cc7b60c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000013
RAX: fffffffffffffffc RBX: 00007f14cbbac050 RCX: 00007f14cba7cda9
RDX: 0000000000000001 RSI: 0000000020000900 RDI: 0000000000000003
RBP: 00007f14cbac947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f14cbbac050 R15: 00007ffdef0aa578
</TASK>
Showing all locks held in the system:
3 locks held by kworker/0:0/8:
1 lock held by khungtaskd/29:
#0: ffffffff8d92ef20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8d92ef20 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8d92ef20 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4802:
#0: ffff88802e3020a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
1 lock held by udevd/13479:
#0: ffff88801e98c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open_by_dev+0x1c7/0x890 block/bdev.c:859
3 locks held by kworker/0:1/16156:
5 locks held by kworker/u4:2/26603:
1 lock held by udevd/4370:
2 locks held by udevd/4371:
1 lock held by syz-executor.3/7488:
#0: ffff88801e98c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x114/0x910 block/bdev.c:969
1 lock held by syz-executor.3/7489:
#0: ffff88801e98c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x114/0x910 block/bdev.c:969
1 lock held by syz-executor.3/8001:
#0:
ffff88801e98c4c8
(
&disk->open_mutex){+.+.}-{3:3}, at: bdev_open_by_dev+0x1c7/0x890 block/bdev.c:859
1 lock held by syz-executor.3/8002:
#0: ffff88801e98c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open_by_dev+0x1c7/0x890 block/bdev.c:859
1 lock held by syz-executor.3/8003:
#0: ffff88801e98c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open_by_dev+0x1c7/0x890 block/bdev.c:859
1 lock held by syz-executor.3/8282:
#0: ffff88801e98c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open_by_dev+0x1c7/0x890 block/bdev.c:859
1 lock held by syz-executor.3/8283:
#0: ffff88801e98c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open_by_dev+0x1c7/0x890 block/bdev.c:859
1 lock held by syz-executor.3/8284:
#0: ffff88801e98c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open_by_dev+0x1c7/0x890 block/bdev.c:859
1 lock held by syz-executor.3/8680:
#0: ffff88801e98c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open_by_dev+0x1c7/0x890 block/bdev.c:859
1 lock held by syz-executor.3/8684:
#0: ffff88801e98c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open_by_dev+0x1c7/0x890 block/bdev.c:859
2 locks held by kworker/u4:3/8857:
2 locks held by syz-executor.3/9034:
#0: ffffffff8eb48848 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8eb48848 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1030 net/core/rtnetlink.c:6612
#1: ffffffff8d9348b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
#1: ffffffff8d9348b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a3/0x890 kernel/rcu/tree_exp.h:996
2 locks held by syz-executor.2/9058:
#0: ffffffff8eb3c2d0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4c7/0x7a0 net/core/net_namespace.c:491
#1: ffffffff8eb48848 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x213/0x710 net/ipv4/ip_tunnel.c:1090
1 lock held by syz-executor.5/9064:
#0: ffff88801ef99998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x13c/0xf40 drivers/block/nbd.c:1537
1 lock held by syz-executor.5/9065:
#0: ffff88801ef99998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x13c/0xf40 drivers/block/nbd.c:1537
1 lock held by syz-executor.5/9067:
#0: ffff88801ef99998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x13c/0xf40 drivers/block/nbd.c:1537
1 lock held by syz-executor.0/9071:
#0: ffff88801eefa998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x13c/0xf40 drivers/block/nbd.c:1537
1 lock held by syz-executor.0/9073:
#0: ffff88801eefa998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x13c/0xf40 drivers/block/nbd.c:1537
1 lock held by syz-executor.0/9077:
#0: ffff88801eefa998 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x13c/0xf40 drivers/block/nbd.c:1537
1 lock held by syz-executor.4/9074:
#0: ffff88801f43e198 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x13c/0xf40 drivers/block/nbd.c:1537
1 lock held by syz-executor.4/9075:
#0: ffff88801f43e198 (&nbd->config_lock){+.+.}-{3:3}, at: nbd_ioctl+0x13c/0xf40 drivers/block/nbd.c:1537
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-syzkaller-13004-g4fbbed787267 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x498/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5729 Comm: kworker/u4:10 Not tainted 6.7.0-syzkaller-13004-g4fbbed787267 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:bytes_is_nonzero mm/kasan/generic.c:87 [inline]
RIP: 0010:memory_is_nonzero mm/kasan/generic.c:104 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:129 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:161 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline]
RIP: 0010:kasan_check_range+0x82/0x290 mm/kasan/generic.c:189
Code: 01 00 00 00 00 fc ff df 4f 8d 3c 31 4c 89 fd 4c 29 dd 48 83 fd 10 7f 29 48 85 ed 0f 84 3e 01 00 00 4c 89 cd 48 f7 d5 48 01 dd <41> 80 3b 00 0f 85 c5 01 00 00 49 ff c3 48 ff c5 75 ee e9 1e 01 00
RSP: 0018:ffffc9000dbc7900 EFLAGS: 00000086
RAX: 0000000000000001 RBX: 1ffffffff21bee97 RCX: ffffffff816da038
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff90df74b8
RBP: ffffffffffffffff R08: ffffffff90df74bf R09: 1ffffffff21bee97
R10: dffffc0000000000 R11: fffffbfff21bee97 R12: ffff888023c38000
R13: ffff888023c38000 R14: dffffc0000000001 R15: fffffbfff21bee98
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2efa807c00 CR3: 000000008017a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<TASK>
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
hlock_class kernel/locking/lockdep.c:228 [inline]
__lock_acquire+0xf18/0x1fd0 kernel/locking/lockdep.c:5133
lock_acquire+0x1e3/0x530 kernel/locking/lockdep.c:5754
rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
rcu_read_lock include/linux/rcupdate.h:750 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xec/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:2633 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2706
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2787
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
</TASK>