INFO: task syz.1.81:4678 blocked for more than 143 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.81 state:D stack:25592 pid: 4678 ppid: 4166 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
io_schedule+0x88/0x100 kernel/sched/core.c:8481
bit_wait_io+0xe/0xc0 kernel/sched/wait_bit.c:209
__wait_on_bit+0xb9/0x180 kernel/sched/wait_bit.c:49
out_of_line_wait_on_bit+0x1d0/0x250 kernel/sched/wait_bit.c:64
wait_on_bit_io include/linux/wait_bit.h:101 [inline]
__wait_on_buffer fs/buffer.c:122 [inline]
wait_on_buffer include/linux/buffer_head.h:390 [inline]
__bread_slow fs/buffer.c:1181 [inline]
__bread_gfp+0x2d6/0x390 fs/buffer.c:1384
sb_bread include/linux/buffer_head.h:337 [inline]
qnx6_check_first_superblock+0xa2/0x320 fs/qnx6/inode.c:265
qnx6_fill_super+0x349/0x19c0 fs/qnx6/inode.c:335
mount_bdev+0x2c9/0x3f0 fs/super.c:1400
legacy_get_tree+0xeb/0x180 fs/fs_context.c:611
vfs_get_tree+0x88/0x270 fs/super.c:1530
do_new_mount+0x2ba/0xb40 fs/namespace.c:3012
do_mount fs/namespace.c:3355 [inline]
__do_sys_mount fs/namespace.c:3563 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3540
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f079043ad29
RSP: 002b:00007f078e2ab038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f079062afa0 RCX: 00007f079043ad29
RDX: 0000000020000580 RSI: 0000000020000480 RDI: 0000000020000440
RBP: 00007f07904b6b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000010000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f079062afa0 R15: 00007ffdc4e2a548
INFO: task syz.1.81:4682 blocked for more than 143 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.81 state:D stack:28512 pid: 4682 ppid: 4166 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
rwsem_down_read_slowpath+0x605/0xb40 kernel/locking/rwsem.c:1055
__down_read_common kernel/locking/rwsem.c:1239 [inline]
__down_read kernel/locking/rwsem.c:1252 [inline]
down_read+0x9a/0x2e0 kernel/locking/rwsem.c:1500
user_get_super+0x11a/0x250 fs/super.c:850
quotactl_block fs/quota/quota.c:889 [inline]
__do_sys_quotactl fs/quota/quota.c:953 [inline]
__se_sys_quotactl+0x490/0x770 fs/quota/quota.c:915
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f079043ad29
RSP: 002b:00007f078e28a038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f079062b080 RCX: 00007f079043ad29
RDX: 0000000000000000 RSI: 0000000020000140 RDI: ffffffff80000402
RBP: 00007f07904b6b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f079062b080 R15: 00007ffdc4e2a548
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8cb1fd20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by acpid/3531:
#0: ffffffff8cb242e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#0: ffffffff8cb242e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x280/0x740 kernel/rcu/tree_exp.h:845
2 locks held by getty/3925:
#0: ffff88802c226098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900025c62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
3 locks held by kworker/1:4/4216:
#0: ffff888017470938 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc9000317fd20 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffff88805278e400 (&nsim_dev->port_list_lock){+.+.}-{3:3}, at: nsim_dev_trap_report_work+0x56/0xab0 drivers/net/netdevsim/dev.c:757
2 locks held by udevd/4298:
#0: ffff88807e769110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_open_device drivers/input/evdev.c:393 [inline]
#0: ffff88807e769110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_open+0x2ec/0x600 drivers/input/evdev.c:487
#1: ffff8880457c22c0 (&dev->mutex#2){+.+.}-{3:3}, at: input_open_device+0x4e/0x2d0 drivers/input/input.c:620
1 lock held by udevd/4299:
2 locks held by kworker/u4:12/4516:
1 lock held by syz.1.81/4678:
#0: ffff88802bab40e0 (&type->s_umount_key#76/1){+.+.}-{3:3}, at: alloc_super+0x210/0x940 fs/super.c:229
1 lock held by syz.1.81/4682:
#0: ffff88802bab40e0 (&type->s_umount_key#77){.+.+}-{3:3}, at: user_get_super+0x11a/0x250 fs/super.c:850
1 lock held by syz.0.233/5689:
#0: ffff88802bab40e0 (&type->s_umount_key#77){.+.+}-{3:3}, at: iterate_supers+0xac/0x1e0 fs/super.c:716
2 locks held by kworker/1:21/6154:
#0: ffff888017472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc900039efd20 ((work_completion)(&rew.rew_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
3 locks held by syz.6.610/8095:
7 locks held by syz.6.614/8113:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
#2: ffffffff8dc670a8 (devlink_mutex){+.+.}-{3:3}, at: devlink_nl_pre_doit+0x31/0xa90 net/core/devlink.c:502
#3: ffff88805278d658 (&nsim_bus_dev->nsim_bus_reload_lock){+.+.}-{3:3}, at: nsim_dev_reload_down+0x58/0x160 drivers/net/netdevsim/dev.c:870
#4: ffff88805278e400 (&nsim_dev->port_list_lock){+.+.}-{3:3}, at: nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1359 [inline]
#4: ffff88805278e400 (&nsim_dev->port_list_lock){+.+.}-{3:3}, at: nsim_dev_reload_destroy+0x118/0x240 drivers/net/netdevsim/dev.c:1561
#5: ffffffff8dc419c8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x3a/0x140 drivers/net/netdevsim/netdev.c:381
#6: ffffffff8cb242e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
#6: ffffffff8cb242e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x350/0x740 kernel/rcu/tree_exp.h:845
2 locks held by syz.5.615/8188:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
2 locks held by syz.5.615/8189:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
1 lock held by syz.9.621/8194:
#0: ffff88807e769110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_open_device drivers/input/evdev.c:393 [inline]
#0: ffff88807e769110 (&evdev->mutex){+.+.}-{3:3}, at: evdev_open+0x2ec/0x600 drivers/input/evdev.c:487
2 locks held by syz.9.621/8202:
2 locks held by syz.4.624/8218:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 4290 Comm: kworker/u4:7 Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: phy4 ieee80211_iface_work
RIP: 0010:__mutex_trylock_common+0x136/0x2e0 kernel/locking/mutex.c:119
Code: 49 83 cf 02 eb 4a 48 b8 00 00 00 00 00 fc ff df 48 8b 4c 24 30 0f b6 04 01 84 c0 0f 85 ea 00 00 00 83 3d 7c 01 47 15 00 75 09 <83> e3 06 0f 85 8d 00 00 00 4c 8b 74 24 18 eb 16 4c 3b 74 24 18 0f
RSP: 0018:ffffc9000321f840 EFLAGS: 00000246
RAX: 0000000000000004 RBX: 0000000000000000 RCX: ffffffff96a8ff03
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88807ac44cd8
RBP: ffffc9000321f910 R08: dffffc0000000000 R09: ffffed100f58899c
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807ac44cd8
R13: 1ffff92000643f14 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc32c69ff8 CR3: 0000000041a23000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__mutex_trylock kernel/locking/mutex.c:146 [inline]
__mutex_lock_common+0x1e8/0x25a0 kernel/locking/mutex.c:598
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
sdata_lock net/mac80211/ieee80211_i.h:1036 [inline]
ieee80211_ibss_work+0xa0/0x1480 net/mac80211/ibss.c:1685
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
xpad 10-1:179.65: xpad_irq_out - usb_submit_urb failed with result -19