INFO: task syz-executor.4:5095 blocked for more than 143 seconds.
Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:21168 pid:5095 ppid:1 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5307 [inline]
__schedule+0x173b/0x4630 kernel/sched/core.c:6625
schedule+0xc3/0x180 kernel/sched/core.c:6701
schedule_timeout+0x1bd/0x310 kernel/time/timer.c:2167
gfs2_gl_hash_clear+0x1a3/0x310 fs/gfs2/glock.c:2198
gfs2_put_super+0x827/0x890 fs/gfs2/super.c:633
generic_shutdown_super+0x134/0x340 fs/super.c:500
kill_block_super+0x7e/0xe0 fs/super.c:1407
deactivate_locked_super+0xa4/0x110 fs/super.c:331
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1177
task_work_run+0x24a/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xd9/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f2757a8d5d7
RSP: 002b:00007ffe25bb6e28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2757a8d5d7
RDX: 00007ffe25bb6efb RSI: 000000000000000a RDI: 00007ffe25bb6ef0
RBP: 00007ffe25bb6ef0 R08: 00000000ffffffff R09: 00007ffe25bb6cc0
R10: 0000555556b718b3 R11: 0000000000000246 R12: 00007f2757ae6cdc
R13: 00007ffe25bb7fb0 R14: 0000555556b71810 R15: 00007ffe25bb7ff0
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8cf25570 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8cf25d70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:510
1 lock held by khungtaskd/28:
#0: ffffffff8cf253a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/4743:
#0: ffff88802bf24098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:244
#1: ffffc900015d02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor.4/5095:
#0: ffff8880760dc0e0 (&type->s_umount_key#88){+.+.}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:361
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
__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+0x187/0x300 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+0xec2/0xf00 kernel/hung_task.c:379
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1061 Comm: kworker/u4:6 Not tainted 6.3.0-rc7-syzkaller-00181-g8e41e0a57566 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Workqueue: phy8 ieee80211_iface_work
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:preempt_count_add+0x36/0x180 kernel/sched/core.c:5770
Code: c7 c0 e0 40 ad 91 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42 0f b6 04 38 84 c0 0f 85 e2 00 00 00 83 3d 5c ef 4e 10 00 75 07 <65> 8b 05 fb 62 a5 7e 65 01 1d f4 62 a5 7e 48 c7 c0 e0 40 ad 91 48
RSP: 0018:ffffc90004faecf0 EFLAGS: 00000246
RAX: 0000000000000004 RBX: 0000000000000001 RCX: ffffffff91ad4003
RDX: dffffc0000000000 RSI: ffffffff8a189fc1 RDI: 0000000000000001
RBP: 1ffff920009f5dbc R08: 0000000000000006 R09: ffffc90004faeed0
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880202bba80
R13: ffffc90004faee28 R14: dffffc0000000000 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c018b054e0 CR3: 000000000cd30000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unwind_next_frame+0xb7/0x2180 arch/x86/kernel/unwind_orc.c:452
arch_stack_walk+0x111/0x140 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x117/0x1c0 kernel/stacktrace.c:122
kasan_save_stack+0x3f/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:491
kvfree_call_rcu+0x109/0x8d0 kernel/rcu/tree.c:3327
cfg80211_update_known_bss+0x166/0x9e0
cfg80211_bss_update+0x171/0x20d0 net/wireless/scan.c:1728
cfg80211_inform_single_bss_frame_data net/wireless/scan.c:2492 [inline]
cfg80211_inform_bss_frame_data+0xcb7/0x2320 net/wireless/scan.c:2525
ieee80211_bss_info_update+0x801/0xf00 net/mac80211/scan.c:190
ieee80211_rx_bss_info net/mac80211/ibss.c:1120 [inline]
ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1609 [inline]
ieee80211_ibss_rx_queued_mgmt+0x192f/0x2cf0 net/mac80211/ibss.c:1638
ieee80211_iface_process_skb net/mac80211/iface.c:1583 [inline]
ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1637
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2390
worker_thread+0xa63/0x1210 kernel/workqueue.c:2537
kthread+0x270/0x300 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308