INFO: task udevd:5052 blocked for more than 143 seconds.
Not tainted 6.4.0-rc7-syzkaller-00072-gdad9774deaf1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25880 pid:5052 ppid:4447 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
blkdev_get_by_dev.part.0+0x95/0xb80 block/bdev.c:747
blkdev_get_by_dev+0x6f/0x90 block/bdev.c:790
blkdev_open+0x140/0x2d0 block/fops.c:493
do_dentry_open+0x6cc/0x13f0 fs/open.c:920
do_open fs/namei.c:3636 [inline]
path_openat+0x1baa/0x2750 fs/namei.c:3791
do_filp_open+0x1ba/0x410 fs/namei.c:3818
do_sys_openat2+0x16d/0x4c0 fs/open.c:1356
do_sys_open fs/open.c:1372 [inline]
__do_sys_openat fs/open.c:1388 [inline]
__se_sys_openat fs/open.c:1383 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1383
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: 0033:0x7f96d09169a4
RSP: 002b:00007ffda57d47d0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055bb2c6e5830 RCX: 00007f96d09169a4
RDX: 00000000000a0800 RSI: 000055bb2c6e0070 RDI: 00000000ffffff9c
RBP: 000055bb2c6e0070 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000a0800
R13: 000055bb2c723460 R14: 0000000000000001 R15: 000055bb2c6b02c0
INFO: task syz-executor.4:14933 blocked for more than 143 seconds.
Not tainted 6.4.0-rc7-syzkaller-00072-gdad9774deaf1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:27704 pid:14933 ppid:5029 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
blkdev_put+0xba/0x780 block/bdev.c:845
blkdev_close+0x68/0x80 block/fops.c:507
__fput+0x27c/0xa90 fs/file_table.c:321
task_work_run+0x16f/0x270 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa4a6c3e12b
RSP: 002b:00007fff294548b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007fa4a6c3e12b
RDX: 0000001b2db20000 RSI: 00000000000130ec RDI: 0000000000000006
RBP: 00007fa4a6dad980 R08: 0000000000000000 R09: 00000000813b0824
R10: 00007fff294c4090 R11: 0000000000000293 R12: 00000000000a051d
R13: 00007fff294549b0 R14: 00007fff294549d0 R15: 0000000000000032
INFO: task syz-executor.4:14934 blocked for more than 143 seconds.
Not tainted 6.4.0-rc7-syzkaller-00072-gdad9774deaf1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:29168 pid:14934 ppid:5029 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6804
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa3b/0x1350 kernel/locking/mutex.c:747
blkdev_put+0xba/0x780 block/bdev.c:845
blkdev_close+0x68/0x80 block/fops.c:507
__fput+0x27c/0xa90 fs/file_table.c:321
task_work_run+0x16f/0x270 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x210/0x240 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x1d/0x50 kernel/entry/common.c:297
do_syscall_64+0x46/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa4a6c8c389
RSP: 002b:00007fa4a79a4168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: 0000000000000000 RBX: 00007fa4a6dabf80 RCX: 00007fa4a6c8c389
RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003
RBP: 00007fa4a6cd7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff2945484f R14: 00007fa4a79a4300 R15: 0000000000022000
INFO: task syz-executor.4:14942 blocked for more than 144 seconds.
Not tainted 6.4.0-rc7-syzkaller-00072-gdad9774deaf1 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:27088 pid:14942 ppid:5029 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0xc9a/0x5880 kernel/sched/core.c:6669
schedule+0xde/0x1a0 kernel/sched/core.c:6745
io_schedule+0xbe/0x130 kernel/sched/core.c:8979
folio_wait_bit_common+0x394/0x9b0 mm/filemap.c:1301
folio_put_wait_locked mm/filemap.c:1470 [inline]
do_read_cache_folio+0x2d3/0x510 mm/filemap.c:3668
read_mapping_folio include/linux/pagemap.h:778 [inline]
read_part_sector+0xfa/0x440 block/partitions/core.c:709
adfspart_check_POWERTEC+0x97/0x680 block/partitions/acorn.c:454
check_partition block/partitions/core.c:138 [inline]
blk_add_partitions block/partitions/core.c:594 [inline]
bdev_disk_changed block/partitions/core.c:680 [inline]
bdev_disk_changed+0x680/0x1300 block/partitions/core.c:647
blkdev_get_whole+0x184/0x2c0 block/bdev.c:619
blkdev_get_by_dev.part.0+0x5e2/0xb80 block/bdev.c:756
blkdev_get_by_dev+0x6f/0x90 block/bdev.c:790
blkdev_open+0x140/0x2d0 block/fops.c:493
do_dentry_open+0x6cc/0x13f0 fs/open.c:920
do_open fs/namei.c:3636 [inline]
path_openat+0x1baa/0x2750 fs/namei.c:3791
do_filp_open+0x1ba/0x410 fs/namei.c:3818
do_sys_openat2+0x16d/0x4c0 fs/open.c:1356
do_sys_open fs/open.c:1372 [inline]
__do_sys_openat fs/open.c:1388 [inline]
__se_sys_openat fs/open.c:1383 [inline]
__x64_sys_openat+0x143/0x1f0 fs/open.c:1383
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: 0033:0x7fa4a6c3e404
RSP: 002b:00007fa4a7982ca0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 6666666666666667 RCX: 00007fa4a6c3e404
RDX: 0000000000101600 RSI: 00007fa4a7982d40 RDI: 00000000ffffff9c
RBP: 00007fa4a7982d40 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000101600
R13: 00007fff2945484f R14: 00007fa4a7983300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c795530 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c795230 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/27:
#0: ffffffff8c796140 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6559
2 locks held by getty/4744:
#0: ffff88802b016098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900020482f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
1 lock held by udevd/5052:
#0: ffff88801fb104c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x95/0xb80 block/bdev.c:747
1 lock held by syz-executor.4/14933:
#0: ffff88801fb104c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xba/0x780 block/bdev.c:845
1 lock held by syz-executor.4/14934:
#0: ffff88801fb104c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_put+0xba/0x780 block/bdev.c:845
1 lock held by syz-executor.4/14942:
#0: ffff88801fb104c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x95/0xb80 block/bdev.c:747
1 lock held by syz-executor.4/15049:
#0: ffff88801fb104c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x95/0xb80 block/bdev.c:747
1 lock held by syz-executor.4/15050:
#0: ffff88801fb104c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x95/0xb80 block/bdev.c:747
1 lock held by syz-executor.4/15051:
#0: ffff88801fb104c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x95/0xb80 block/bdev.c:747
1 lock held by syz-executor.4/15118:
#0: ffff88801fb104c8 (&disk->open_mutex){+.+.}-{3:3}, at: blkdev_get_by_dev.part.0+0x95/0xb80 block/bdev.c:747
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.4.0-rc7-syzkaller-00072-gdad9774deaf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
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+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x344/0x440 kernel/kthread.c:379
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: 5864 Comm: kworker/u4:9 Not tainted 6.4.0-rc7-syzkaller-00072-gdad9774deaf1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: bat_events batadv_nc_worker
RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:60 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:178 [inline]
RIP: 0010:kasan_check_range+0x56/0x190 mm/kasan/generic.c:187
Code: 39 c7 0f 86 05 01 00 00 49 83 e9 01 48 89 fd 48 b8 00 00 00 00 00 fc ff df 4d 89 ca 48 c1 ed 03 49 c1 ea 03 48 01 c5 49 01 c2 <48> 89 e8 49 8d 5a 01 48 89 da 48 29 ea 48 83 fa 10 7e 63 41 89 eb
RSP: 0018:ffffc9000552fa08 EFLAGS: 00000086
RAX: dffffc0000000000 RBX: 1ffff92000aa5f76 RCX: ffffffff8164a265
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff9151fd00
RBP: fffffbfff22a3fa0 R08: 0000000000000000 R09: ffffffff9151fd07
R10: fffffbfff22a3fa0 R11: 0000000000000000 R12: ffffffff8c796140
R13: 0000000000000020 R14: ffff888079572c70 R15: ffff888079572c98
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055a35b67ffc8 CR3: 000000007e1dc000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
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]
check_wait_context kernel/locking/lockdep.c:4751 [inline]
__lock_acquire+0x405/0x5f30 kernel/locking/lockdep.c:5038
lock_acquire kernel/locking/lockdep.c:5705 [inline]
lock_acquire+0x1b1/0x520 kernel/locking/lockdep.c:5670
rcu_lock_acquire include/linux/rcupdate.h:327 [inline]
rcu_read_lock include/linux/rcupdate.h:773 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x131/0xfe0 net/batman-adv/network-coding.c:719
process_one_work+0x99a/0x15e0 kernel/workqueue.c:2405
worker_thread+0x67d/0x10c0 kernel/workqueue.c:2552
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308