INFO: task syz-executor:6391 blocked for more than 143 seconds.
Not tainted 6.12.0-syzkaller-09837-g798bb342e041 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor state:D
stack:21040 pid:6391 tgid:6391 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0xb0/0x290 kernel/time/sleep_timeout.c:75
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
__flush_work+0xa37/0xc50 kernel/workqueue.c:4231
flush_work kernel/workqueue.c:4252 [inline]
flush_delayed_work+0x169/0x1c0 kernel/workqueue.c:4274
invalidate_dquots fs/quota/dquot.c:576 [inline]
dquot_disable+0x7a7/0x1cd0 fs/quota/dquot.c:2294
ocfs2_disable_quotas+0xf3/0x210 fs/ocfs2/super.c:963
ocfs2_dismount_volume+0x1ad/0x8f0 fs/ocfs2/super.c:1870
generic_shutdown_super+0x139/0x2d0 fs/super.c:642
kill_block_super+0x44/0x90 fs/super.c:1710
deactivate_locked_super+0xc4/0x130 fs/super.c:473
cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
task_work_run+0x24f/0x310 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xa2f/0x28e0 kernel/exit.c:938
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
__do_sys_exit_group kernel/exit.c:1098 [inline]
__se_sys_exit_group kernel/exit.c:1096 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1096
x64_sys_call+0x26a8/0x26b0 arch/x86/include/generated/asm/syscalls_64.h:232
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: 0033:0x7fce0c980809
RSP: 002b:00007ffe4e70fed8 EFLAGS: 00000246
ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fce0c9f3801 RCX: 00007fce0c980809
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 000000000000000d R08: 00007ffe4e70dc76 R09: 00007ffe4e711190
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe4e711190
R13: 00007fce0c9f37dc R14: 000000000001e1e0 R15: 00007ffe4e712250
Showing all locks held in the system:
3 locks held by kworker/0:0/8:
#0: ffff88801ac80948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac80948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1:
ffffc900000d7d00
(
deferred_process_work
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3205 [inline]
, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2:
ffffffff8fcd76c8
(
rtnl_mutex
){+.+.}-{4:4}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
5 locks held by kworker/u8:1/12:
#0: ffff88801baeb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801baeb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90000117d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fccab90 (pernet_ops_rwsem){++++}-{4:4}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:586
#3: ffffffff8fcd76c8 (rtnl_mutex){+.+.}-{4:4}, at: cleanup_net+0x6af/0xcc0 net/core/net_namespace.c:622
#4: ffffffff8e941ab8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#4: ffffffff8e941ab8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976
1 lock held by khungtaskd/30:
#0: ffffffff8e93c520 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e93c520 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e93c520 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6744
9 locks held by kworker/u8:3/51:
5 locks held by kworker/u8:5/191:
2 locks held by getty/5593:
#0: ffff88814e5f80a0 (&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
1 lock held by syz-executor/5835:
#0: ffff88807cbd00e0 (&type->s_umount_key#76){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88807cbd00e0 (&type->s_umount_key#76){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88807cbd00e0 (&type->s_umount_key#76){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz-executor/6266:
#0: ffff888020ad80e0 (&type->s_umount_key#76){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff888020ad80e0 (&type->s_umount_key#76){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff888020ad80e0 (&type->s_umount_key#76){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
3 locks held by kworker/u8:9/6303:
#0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1:
ffffc90003137d00
((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcd76c8 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
1 lock held by syz-executor/6391:
#0: ffff88805a8be0e0 (&type->s_umount_key#76){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88805a8be0e0 (&type->s_umount_key#76){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88805a8be0e0 (&type->s_umount_key#76){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz-executor/7359:
#0: ffffffff8e941ab8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: exp_funnel_lock kernel/rcu/tree_exp.h:329 [inline]
#0: ffffffff8e941ab8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x451/0x830 kernel/rcu/tree_exp.h:976
1 lock held by syz-executor/7507:
#0: ffff8880311900e0 (&type->s_umount_key#30){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff8880311900e0 (&type->s_umount_key#30){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff8880311900e0 (&type->s_umount_key#30){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz-executor/7588:
#0: ffff88807faba0e0 (&type->s_umount_key#30){++++}-{4:4}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88807faba0e0 (&type->s_umount_key#30){++++}-{4:4}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88807faba0e0 (&type->s_umount_key#30){++++}-{4:4}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz-executor/8138:
#0: ffffffff8fcd76c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd76c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:326 [inline]
#0: ffffffff8fcd76c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xd04/0x24f0 net/core/rtnetlink.c:4000
2 locks held by syz-executor/8143:
#0: ffffffff8f46b6e0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8f46b6e0 (&ops->srcu#2){.+.+}-{0:0}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8f46b6e0 (&ops->srcu#2){.+.+}-{0:0}, at: rtnl_link_ops_get+0x22/0x250 net/core/rtnetlink.c:555
#1: ffffffff8fcd76c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#1: ffffffff8fcd76c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:326 [inline]
#1: ffffffff8fcd76c8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0xd04/0x24f0 net/core/rtnetlink.c:4000
2 locks held by rm/8386:
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-syzkaller-09837-g798bb342e041 #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+0xffb/0x1040 kernel/hung_task.c:397
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
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: 51 Comm: kworker/u8:3 Not tainted 6.12.0-syzkaller-09837-g798bb342e041 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_unbound quota_release_workfn
RIP: 0010:__read_once_word_nocheck+0x3/0x10 include/asm-generic/rwonce.h:67
Code: bb 00 48 ba 00 00 00 00 00 fc ff df e9 9f fc ff ff 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 48 8b 07 cc cc cc cc 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90000a17748 EFLAGS: 00000287
RAX: ffffffff8b338e0f RBX: ffffc90000a17830 RCX: 1ffff92000142f04
RDX: ffffffff913d6ddc RSI: 0000000000000002 RDI: ffffc90000a17ef8
RBP: ffffc90000a11000 R08: 0000000000000005 R09: ffffc90000a17910
R10: ffffc90000a17870 R11: ffffffff81819f40 R12: ffffc90000a19000
R13: ffffc90000a17ef8 R14: ffffc90000a17820 R15: 1ffff92000142f06
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd619340440 CR3: 000000000e738000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
deref_stack_reg arch/x86/kernel/unwind_orc.c:406 [inline]
unwind_next_frame+0xc9b/0x22d0 arch/x86/kernel/unwind_orc.c:585
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
poison_kmalloc_redzone mm/kasan/common.c:377 [inline]
__kasan_kmalloc+0x98/0xb0 mm/kasan/common.c:394
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4283 [inline]
__kmalloc_noprof+0x285/0x4c0 mm/slub.c:4295
kmalloc_noprof include/linux/slab.h:905 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
ieee802_11_parse_elems_full+0xdb/0x2880 net/mac80211/parse.c:958
ieee802_11_parse_elems_crc net/mac80211/ieee80211_i.h:2386 [inline]
ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2393 [inline]
ieee80211_inform_bss+0x15f/0x1080 net/mac80211/scan.c:79
rdev_inform_bss net/wireless/rdev-ops.h:418 [inline]
cfg80211_inform_single_bss_data+0xec1/0x2090 net/wireless/scan.c:2334
cfg80211_inform_bss_data+0x3ce/0x5e80 net/wireless/scan.c:3189
cfg80211_inform_bss_frame_data+0x3b8/0x720 net/wireless/scan.c:3284
ieee80211_bss_info_update+0x8a7/0xbc0 net/mac80211/scan.c:226
ieee80211_scan_rx+0x526/0x9c0 net/mac80211/scan.c:340
__ieee80211_rx_handle_packet net/mac80211/rx.c:5232 [inline]
ieee80211_rx_list+0x2c44/0x3810 net/mac80211/rx.c:5469
ieee80211_rx_napi+0x18a/0x3c0 net/mac80211/rx.c:5492
ieee80211_rx include/net/mac80211.h:5163 [inline]
ieee80211_handle_queued_frames+0xe7/0x1e0 net/mac80211/main.c:441
tasklet_action_common+0x426/0x620 kernel/softirq.c:804
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655
irq_exit_rcu+0x9/0x30 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2061 [inline]
RIP: 0010:vprintk_emit+0x700/0xa10 kernel/printk/printk.c:2431
Code: 00 e8 b4 f4 20 00 4c 8d bc 24 a0 00 00 00 4d 85 e4 75 07 e8 a2 f4 20 00 eb 06 e8 9b f4 20 00 fb 49 bc 00 00 00 00 00 fc ff df <48> c7 c7 a0 7a 81 8e 31 f6 ba 01 00 00 00 31 c9 41 b8 01 00 00 00
RSP: 0018:ffffc90000bb7520 EFLAGS: 00000293
RAX: ffffffff8174e835 RBX: 0000000000000000 RCX: ffff88801daebc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000bb7630 R08: ffffffff8174e80e R09: 1ffffffff285db3e
R10: dffffc0000000000 R11: fffffbfff285db3f R12: dffffc0000000000
R13: 1ffff92000176ea8 R14: ffffffff8174e670 R15: ffffc90000bb75c0
_printk+0xd5/0x120 kernel/printk/printk.c:2457
__mlog_printk+0x281/0x2b0 fs/ocfs2/cluster/masklog.c:77
ocfs2_start_trans+0x59e/0x700 fs/ocfs2/journal.c:357
ocfs2_release_dquot+0x474/0xc40 fs/ocfs2/quota_global.c:761
quota_release_workfn+0x39f/0x650 fs/quota/dquot.c:838
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244