INFO: task syz-executor.4:5033 blocked for more than 143 seconds.
Not tainted 6.4.0-rc7-syzkaller-00014-g692b7dc87ca6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:19512 pid:5033 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5343 [inline]
__schedule+0x187b/0x4900 kernel/sched/core.c:6669
schedule+0xc3/0x180 kernel/sched/core.c:6745
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:642
generic_shutdown_super+0x134/0x340 fs/super.c:500
kill_block_super+0x84/0xf0 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: 0033:0x7f2d3388d7f7
RSP: 002b:00007fffdaad53d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2d3388d7f7
RDX: 00007fffdaad54ab RSI: 000000000000000a RDI: 00007fffdaad54a0
RBP: 00007fffdaad54a0 R08: 00000000ffffffff R09: 00007fffdaad5270
R10: 0000555556a6a893 R11: 0000000000000246 R12: 00007f2d338d643b
R13: 00007fffdaad6560 R14: 0000555556a6a810 R15: 00007fffdaad65a0
Showing all locks held in the system:
4 locks held by kworker/u4:1/12:
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8cf276f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8cf27ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
#0: ffffffff8cf27520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by klogd/4436:
2 locks held by getty/4744:
#0: ffff88814a8a2098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 drivers/tty/n_tty.c:2176
1 lock held by syz-executor.4/5033:
#0: ffff88807972e0e0 (&type->s_umount_key#56){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:361
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc7-syzkaller-00014-g692b7dc87ca6 #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+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+0x2b8/0x350 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: 24367 Comm: kworker/u4:3 Not tainted 6.4.0-rc7-syzkaller-00014-g692b7dc87ca6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Workqueue: phy6 ieee80211_iface_work
RIP: 0010:__cmpxchg_double_slab+0x4/0x250 mm/slub.c:526
Code: 48 01 48 60 5b 41 5e 5d c3 89 ee 48 c7 c7 b0 a1 01 8d e8 4f 49 8a 02 eb ce 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 57 41 56 <41> 55 41 54 53 4d 89 cf 4c 89 c3 49 89 cc 49 89 d5 49 89 f6 83 3d
RSP: 0018:ffffc90004f27258 EFLAGS: 00000006
RAX: 0000000000000000 RBX: ffff888012440840 RCX: 0000000000100003
RDX: ffff888022bde000 RSI: ffffea00008af600 RDI: ffff888012441dc0
RBP: ffffea00008af610 R08: ffff888022bde000 R09: 0000000080100003
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888022bde000
R13: ffffea00008af600 R14: ffff888099867800 R15: ffffea0001def410
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055939eb9f680 CR3: 000000000cd30000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
acquire_slab mm/slub.c:2231 [inline]
get_partial_node+0x125/0x460 mm/slub.c:2285
get_partial mm/slub.c:2385 [inline]
___slab_alloc+0x7f3/0x10a0 mm/slub.c:3187
__slab_alloc mm/slub.c:3291 [inline]
__slab_alloc_node mm/slub.c:3344 [inline]
slab_alloc_node mm/slub.c:3441 [inline]
__kmem_cache_alloc_node+0x1b8/0x290 mm/slub.c:3490
__do_kmalloc_node mm/slab_common.c:965 [inline]
__kmalloc+0xa8/0x230 mm/slab_common.c:979
kmalloc include/linux/slab.h:563 [inline]
kzalloc include/linux/slab.h:680 [inline]
ieee802_11_parse_elems_full+0x112/0x2a40 net/mac80211/util.c:1609
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2305 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2312 [inline]
ieee80211_bss_info_update+0x994/0xf00 net/mac80211/scan.c:212
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:1594 [inline]
ieee80211_iface_work+0x7bd/0xd00 net/mac80211/iface.c:1648
process_one_work+0x8a0/0x10e0 kernel/workqueue.c:2405
worker_thread+0xa63/0x1210 kernel/workqueue.c:2552
kthread+0x2b8/0x350 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308