INFO: task syz.7.445:9086 blocked for more than 145 seconds.
Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.445 state:D stack:27328 pid:9086 tgid:9041 ppid:7380 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5371 [inline]
__schedule+0x189f/0x4c80 kernel/sched/core.c:6758
__schedule_loop kernel/sched/core.c:6835 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6850
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6907
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:863 [inline]
open_last_lookups fs/namei.c:3745 [inline]
path_openat+0x89a/0x3580 fs/namei.c:3984
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1427
do_sys_open fs/open.c:1442 [inline]
__do_sys_openat fs/open.c:1458 [inline]
__se_sys_openat fs/open.c:1453 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1453
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8c88385d29
RSP: 002b:00007f8c89104038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f8c88576080 RCX: 00007f8c88385d29
RDX: 0000000000105042 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f8c88401b08 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000000001db R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8c88576080 R15: 00007fff3cfac588
INFO: task syz.7.445:9090 blocked for more than 146 seconds.
Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.445 state:D stack:27328 pid:9090 tgid:9041 ppid:7380 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5371 [inline]
__schedule+0x189f/0x4c80 kernel/sched/core.c:6758
__schedule_loop kernel/sched/core.c:6835 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6850
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6907
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:863 [inline]
open_last_lookups fs/namei.c:3745 [inline]
path_openat+0x89a/0x3580 fs/namei.c:3984
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1427
do_sys_open fs/open.c:1442 [inline]
__do_sys_open fs/open.c:1450 [inline]
__se_sys_open fs/open.c:1446 [inline]
__x64_sys_open+0x225/0x270 fs/open.c:1446
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8c88385d29
RSP: 002b:00007f8c890e3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f8c88576160 RCX: 00007f8c88385d29
RDX: 0000000000000086 RSI: 0000000000064842 RDI: 0000000020000080
RBP: 00007f8c88401b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8c88576160 R15: 00007fff3cfac588
INFO: task syz.7.445:9099 blocked for more than 147 seconds.
Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.445 state:D stack:25944 pid:9099 tgid:9041 ppid:7380 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5371 [inline]
__schedule+0x189f/0x4c80 kernel/sched/core.c:6758
__schedule_loop kernel/sched/core.c:6835 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6850
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6907
rwsem_down_write_slowpath+0xeee/0x13b0 kernel/locking/rwsem.c:1176
__down_write_common kernel/locking/rwsem.c:1304 [inline]
__down_write kernel/locking/rwsem.c:1313 [inline]
down_write+0x1d7/0x220 kernel/locking/rwsem.c:1578
inode_lock include/linux/fs.h:863 [inline]
open_last_lookups fs/namei.c:3745 [inline]
path_openat+0x89a/0x3580 fs/namei.c:3984
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1427
do_sys_open fs/open.c:1442 [inline]
__do_sys_creat fs/open.c:1520 [inline]
__se_sys_creat fs/open.c:1514 [inline]
__x64_sys_creat+0x123/0x170 fs/open.c:1514
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8c88385d29
RSP: 002b:00007f8c85df4038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f8c88576240 RCX: 00007f8c88385d29
RDX: 0000000000000000 RSI: 0000000000000028 RDI: 0000000020000080
RBP: 00007f8c88401b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8c88576240 R15: 00007fff3cfac588
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8e937da0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937da0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937da0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
2 locks held by kworker/u8:7/1119:
2 locks held by getty/5588:
#0: ffff88814d2090a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
2 locks held by kworker/1:6/8385:
2 locks held by syz.7.445/9042:
2 locks held by syz.7.445/9086:
#0: ffff8880790d0420 (sb_writers#40){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:548
#1: ffff88805c3146c0 (&type->i_mutex_dir_key#27){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:863 [inline]
#1: ffff88805c3146c0 (&type->i_mutex_dir_key#27){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
#1: ffff88805c3146c0 (&type->i_mutex_dir_key#27){+.+.}-{4:4}, at: path_openat+0x89a/0x3580 fs/namei.c:3984
2 locks held by syz.7.445/9090:
#0: ffff8880790d0420 (sb_writers#40){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:548
#1: ffff88805c3146c0 (&type->i_mutex_dir_key#27){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:863 [inline]
#1: ffff88805c3146c0 (&type->i_mutex_dir_key#27){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
#1: ffff88805c3146c0 (&type->i_mutex_dir_key#27){+.+.}-{4:4}, at: path_openat+0x89a/0x3580 fs/namei.c:3984
2 locks held by syz.7.445/9099:
#0: ffff8880790d0420 (sb_writers#40){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:548
#1: ffff88805c3146c0 (&type->i_mutex_dir_key#27){+.+.}-{4:4}, at: inode_lock include/linux/fs.h:863 [inline]
#1: ffff88805c3146c0 (&type->i_mutex_dir_key#27){+.+.}-{4:4}, at: open_last_lookups fs/namei.c:3745 [inline]
#1: ffff88805c3146c0 (&type->i_mutex_dir_key#27){+.+.}-{4:4}, at: path_openat+0x89a/0x3580 fs/namei.c:3984
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:234 [inline]
watchdog+0xff6/0x1040 kernel/hung_task.c:397
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 1119 Comm: kworker/u8:7 Not tainted 6.13.0-rc3-next-20241220-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:list_add_tail include/linux/list.h:183 [inline]
RIP: 0010:usb_anchor_urb+0x9b/0x240 drivers/usb/core/urb.c:133
Code: 09 eb 0f 88 98 01 00 00 e8 82 38 57 fa eb 05 e8 7b 38 57 fa 48 b8 00 00 00 00 00 fc ff df 4c 89 fb 4d 8d 6f 28 4d 8d 7c 24 08 <4c> 89 fd 48 c1 ed 03 80 7c 05 00 00 74 08 4c 89 ff e8 cf b3 bd fa
RSP: 0018:ffffc90000a18880 EFLAGS: 00000083
RAX: dffffc0000000000 RBX: ffff88807da79d00 RCX: 0000000000040000
RDX: ffffc900023b2000 RSI: 0000000000000003 RDI: 0000000000000004
RBP: 0000000000000001 R08: ffffffff8767eb91 R09: 1ffff1100fb4f3a0
R10: dffffc0000000000 R11: ffffed100fb4f3a1 R12: ffff88806152c298
R13: ffff88807da79d28 R14: ffff88806152c2f8 R15: ffff88806152c2a0
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c2f704e CR3: 00000000300e4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ath9k_hif_usb_reg_in_cb+0x4c1/0x6e0 drivers/net/wireless/ath/ath9k/hif_usb.c:789
__usb_hcd_giveback_urb+0x42c/0x6e0 drivers/usb/core/hcd.c:1650
dummy_timer+0x856/0x4620 drivers/usb/gadget/udc/dummy_hcd.c:1993
__run_hrtimer kernel/time/hrtimer.c:1739 [inline]
__hrtimer_run_queues+0x59b/0xd30 kernel/time/hrtimer.c:1803
hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
do_softirq+0x11b/0x1e0 kernel/softirq.c:462
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:389
spin_unlock_bh include/linux/spinlock.h:396 [inline]
batadv_nc_purge_paths+0x312/0x3b0 net/batman-adv/network-coding.c:471
batadv_nc_worker+0x365/0x610 net/batman-adv/network-coding.c:722
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244