INFO: task syz.2.1061:7622 blocked for more than 143 seconds.
Not tainted 6.1.104-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.1061 state:D stack:24544 pid:7622 ppid:6368 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5241 [inline]
__schedule+0x143f/0x4570 kernel/sched/core.c:6558
schedule+0xbf/0x180 kernel/sched/core.c:6634
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6693
rwsem_down_read_slowpath kernel/locking/rwsem.c:1094 [inline]
__down_read_common kernel/locking/rwsem.c:1261 [inline]
__down_read kernel/locking/rwsem.c:1274 [inline]
down_read+0x6ff/0xa30 kernel/locking/rwsem.c:1522
user_get_super+0x11a/0x250 fs/super.c:889
quotactl_block fs/quota/quota.c:890 [inline]
__do_sys_quotactl fs/quota/quota.c:954 [inline]
__se_sys_quotactl+0x490/0x770 fs/quota/quota.c:916
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f0aadf799f9
RSP: 002b:00007f0aaee1a038 EFLAGS: 00000246 ORIG_RAX: 00000000000000b3
RAX: ffffffffffffffda RBX: 00007f0aae115f80 RCX: 00007f0aadf799f9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: ffffffff80000801
RBP: 00007f0aadfe78ee R08: 0000000000000000 R09: 0000000000000000
R10: 0000000020000240 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0aae115f80 R15: 00007ffd58084968
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8d32b190 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8d32b990 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xe30 kernel/rcu/tasks.h:516
1 lock held by khungtaskd/28:
#0: ffffffff8d32afc0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
#0: ffffffff8d32afc0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline]
#0: ffffffff8d32afc0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6494
2 locks held by getty/3392:
#0: ffff88802963c098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a7/0x1db0 drivers/tty/n_tty.c:2198
4 locks held by kworker/u4:12/3989:
2 locks held by syz-executor/5376:
#0: ffff8880251300e0 (&type->s_umount_key#77){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
#1: ffffffff8d712668 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
1 lock held by syz.3.771/6617:
#0: ffff8880251300e0 (&type->s_umount_key#77){++++}-{3:3}, at: iterate_supers+0xac/0x1e0 fs/super.c:755
2 locks held by kworker/u4:15/6657:
1 lock held by syz.2.1061/7622:
#0: ffff8880251300e0 (&type->s_umount_key#77){++++}-{3:3}, at: user_get_super+0x11a/0x250 fs/super.c:889
2 locks held by syz-executor/7691:
#0: ffff88807bc580e0 (&type->s_umount_key#77){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
#1: ffffffff8d712668 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
2 locks held by syz-executor/7703:
#0: ffff888075dd40e0 (&type->s_umount_key#77){++++}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:362
#1: ffffffff8d712668 (jfs_log_mutex){+.+.}-{3:3}, at: lmLogClose+0xae/0x530 fs/jfs/jfs_logmgr.c:1444
1 lock held by syz-executor/9013:
#0: ffffffff8d3305b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#0: ffffffff8d3305b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4f0/0x930 kernel/rcu/tree_exp.h:962
6 locks held by syz.2.1654/9648:
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.1.104-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
nmi_cpu_backtrace+0x4e1/0x560 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1b0/0x3f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xf88/0xfd0 kernel/hung_task.c:377
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 9 Comm: kworker/u4:0 Not tainted 6.1.104-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: phy50 ieee80211_iface_work
RIP: 0010:__lock_acquire+0xeb/0x1f80 kernel/locking/lockdep.c:4948
Code: 1b 48 85 db 75 24 4c 89 f7 89 ee 31 d2 e8 8d dc ff ff 31 f6 48 ba 00 00 00 00 00 fc ff df 48 89 c3 48 85 c0 0f 84 18 14 00 00 <49> 8d ad d8 0a 00 00 48 89 e8 48 c1 e8 03 48 89 44 24 28 0f b6 04
RSP: 0018:ffffc900000e7680 EFLAGS: 00000082
RAX: 1ffffffff1a655f9 RBX: ffffffff90432220 RCX: 0000000000000002
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffffff8d32afc0
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000002
R13: ffff88813fed0000 R14: ffffffff8d32afc0 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b34117ff8 CR3: 000000000d08e000 CR4: 00000000003506f0
Call Trace:
lock_acquire+0x1f8/0x5a0 kernel/locking/lockdep.c:5662
rcu_lock_acquire include/linux/rcupdate.h:350 [inline]
rcu_read_lock include/linux/rcupdate.h:791 [inline]
sta_info_get+0x68/0x2a0 net/mac80211/sta_info.c:206
ieee80211_update_sta_info net/mac80211/ibss.c:1000 [inline]
ieee80211_rx_bss_info net/mac80211/ibss.c:1118 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x10f0/0x2dd0 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1632 [inline]
ieee80211_iface_work+0x7aa/0xce0 net/mac80211/iface.c:1686
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
vkms_vblank_simulate: vblank timer overrun