INFO: task syz-executor.5:24028 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:20528 pid:24028 tgid:24028 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6835
rwsem_down_write_slowpath+0xeea/0x13b0 kernel/locking/rwsem.c:1178
__down_write_common+0x1aa/0x200 kernel/locking/rwsem.c:1306
__super_lock fs/super.c:56 [inline]
__super_lock_excl fs/super.c:71 [inline]
deactivate_super+0xad/0xf0 fs/super.c:516
cleanup_mnt+0x426/0x4c0 fs/namespace.c:1256
task_work_run+0x24a/0x300 kernel/task_work.c:180
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171
exit_to_user_mode_prepare+0xb1/0x150 kernel/entry/common.c:204
__syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline]
syscall_exit_to_user_mode+0x69/0x2a0 kernel/entry/common.c:296
do_syscall_64+0x52/0x110 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f420d47e017
RSP: 002b:00007ffd8384c888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f420d47e017
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffd8384c940
RBP: 00007ffd8384c940 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd8384da00
R13: 00007f420d4c83b9 R14: 0000000000299444 R15: 0000000000000018
INFO: task syz-executor.3:26864 blocked for more than 143 seconds.
Not tainted 6.7.0-rc8-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24272 pid:26864 tgid:26863 ppid:6183 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5376 [inline]
__schedule+0x1961/0x4ab0 kernel/sched/core.c:6688
__schedule_loop kernel/sched/core.c:6763 [inline]
schedule+0x149/0x260 kernel/sched/core.c:6778
jfs_flush_journal+0x72b/0xec0 fs/jfs/jfs_logmgr.c:1564
jfs_sync_fs+0x80/0xa0 fs/jfs/super.c:684
iterate_supers+0xc2/0x180 fs/super.c:971
ksys_sync+0xdb/0x1c0 fs/sync.c:104
__do_sys_sync+0xe/0x20 fs/sync.c:113
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x45/0x110 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f2e4367cce9
RSP: 002b:00007f2e443090c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2
RAX: ffffffffffffffda RBX: 00007f2e4379bf80 RCX: 00007f2e4367cce9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007f2e436c947a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f2e4379bf80 R15: 00007ffee56e8488
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#0: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
2 locks held by getty/4823:
#0: ffff88814c5680a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
5 locks held by kworker/1:4/23598:
#0: ffff8880b993c358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:558
#1: ffff8880b9928808 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x441/0x770 kernel/sched/psi.c:988
#2: ffffffff8d92db40 (rcu_read_lock_bh){....}-{1:2}, at: local_bh_disable include/linux/bottom_half.h:20 [inline]
#2: ffffffff8d92db40 (rcu_read_lock_bh){....}-{1:2}, at: rcu_read_lock_bh include/linux/rcupdate.h:799 [inline]
#2: ffffffff8d92db40 (rcu_read_lock_bh){....}-{1:2}, at: keep_key_fresh drivers/net/wireguard/send.c:129 [inline]
#2: ffffffff8d92db40 (rcu_read_lock_bh){....}-{1:2}, at: wg_packet_create_data_done drivers/net/wireguard/send.c:259 [inline]
#2: ffffffff8d92db40 (rcu_read_lock_bh){....}-{1:2}, at: wg_packet_tx_worker+0x25f/0x810 drivers/net/wireguard/send.c:276
#3: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:301 [inline]
#3: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:747 [inline]
#3: ffffffff8d92dae0 (rcu_read_lock){....}-{1:2}, at: ip_local_deliver_finish+0x1bc/0x500 net/ipv4/ip_input.c:232
#4: ffffffff8d92db40 (rcu_read_lock_bh){....}-{1:2}, at: local_bh_disable include/linux/bottom_half.h:20 [inline]
#4: ffffffff8d92db40 (rcu_read_lock_bh){....}-{1:2}, at: rcu_read_lock_bh include/linux/rcupdate.h:799 [inline]
#4: ffffffff8d92db40 (rcu_read_lock_bh){....}-{1:2}, at: wg_packet_consume_data drivers/net/wireguard/receive.c:515 [inline]
#4: ffffffff8d92db40 (rcu_read_lock_bh){....}-{1:2}, at: wg_packet_receive+0x11bf/0x2480 drivers/net/wireguard/receive.c:576
1 lock held by syz-executor.5/24028:
#0: ffff88803ed4e0e0 (&type->s_umount_key#82){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
#0: ffff88803ed4e0e0 (&type->s_umount_key#82){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
#0: ffff88803ed4e0e0 (&type->s_umount_key#82){++++}-{3:3}, at: deactivate_super+0xad/0xf0 fs/super.c:516
1 lock held by syz-executor.3/26864:
#0: ffff88803ed4e0e0 (&type->s_umount_key#82){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88803ed4e0e0 (&type->s_umount_key#82){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117
1 lock held by syz-executor.2/26940:
#0: ffff88803ed4e0e0 (&type->s_umount_key#82){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88803ed4e0e0 (&type->s_umount_key#82){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117
1 lock held by syz-executor.3/27018:
#0: ffff88803ed4e0e0 (&type->s_umount_key#82){++++}-{3:3}, at: __super_lock fs/super.c:58 [inline]
#0: ffff88803ed4e0e0 (&type->s_umount_key#82){++++}-{3:3}, at: super_lock+0x176/0x3a0 fs/super.c:117
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
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+0x198/0x310 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 2927 Comm: kworker/u4:13 Not tainted 6.7.0-rc8-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events_unbound cfg80211_wiphy_work
RIP: 0010:jhash2 include/linux/jhash.h:135 [inline]
RIP: 0010:hash_stack lib/stackdepot.c:322 [inline]
RIP: 0010:__stack_depot_save+0xb5/0x650 lib/stackdepot.c:382
Code: 10 31 f8 01 d9 89 c5 c1 c5 13 29 c3 31 dd 01 c8 29 e9 41 89 ee 41 c1 c6 04 41 31 ce 01 c5 83 c6 fd 48 83 c2 0c 83 fe 03 77 a0 <83> fe 01 75 10 eb 1f 4c 89 fa 44 89 f0 44 89 f5 83 fe 01 74 11 83
RSP: 0018:ffffc9000a32f738 EFLAGS: 00000297
RAX: 00000000623de693 RBX: 000000006613c292 RCX: 00000000219f21d8
RDX: ffffc9000a32f7f0 RSI: 0000000000000002 RDI: 000000003a87bcc7
RBP: 000000005c67d7c7 R08: 000000000000000d R09: ffffffff813dc4e7
R10: 0000000000000002 R11: ffff88802754d940 R12: 0000000000000000
R13: 0000000000000001 R14: 0000000083003297 R15: ffffc9000a32f790
FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562179c18a58 CR3: 000000000d731000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x61/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:164 [inline]
slab_free_hook mm/slub.c:1800 [inline]
slab_free_freelist_hook mm/slub.c:1826 [inline]
slab_free mm/slub.c:3809 [inline]
kmem_cache_free+0x299/0x470 mm/slub.c:3831
skb_kfree_head net/core/skbuff.c:948 [inline]
skb_free_head net/core/skbuff.c:962 [inline]
skb_release_data+0x637/0x850 net/core/skbuff.c:992
skb_release_all net/core/skbuff.c:1058 [inline]
__kfree_skb net/core/skbuff.c:1072 [inline]
kfree_skb_reason+0x195/0x390 net/core/skbuff.c:1108
kfree_skb include/linux/skbuff.h:1234 [inline]
ieee80211_iface_work+0x26c/0xd90 net/mac80211/iface.c:1645
cfg80211_wiphy_work+0x21e/0x250 net/wireless/core.c:437
process_one_work kernel/workqueue.c:2627 [inline]
process_scheduled_works+0x90f/0x1420 kernel/workqueue.c:2700
worker_thread+0xa5f/0x1000 kernel/workqueue.c:2781
kthread+0x2d3/0x370 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242