INFO: task kworker/u4:2:54 blocked for more than 140 seconds.
      Not tainted 4.19.211-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:2    D25808    54      2 0x80000000
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
Workqueue: netns cleanup_net
Call Trace:
 context_switch kernel/sched/core.c:2828 [inline]
 __schedule+0x887/0x2040 kernel/sched/core.c:3517
 schedule+0x8d/0x1b0 kernel/sched/core.c:3561
 schedule_timeout+0x92d/0xfe0 kernel/time/timer.c:1794
 do_wait_for_common kernel/sched/completion.c:83 [inline]
 __wait_for_common kernel/sched/completion.c:104 [inline]
 wait_for_common+0x29c/0x470 kernel/sched/completion.c:115
 flush_workqueue+0x40b/0x13e0 kernel/workqueue.c:2713
 flush_scheduled_work include/linux/workqueue.h:599 [inline]
 tipc_exit_net+0x38/0x60 net/tipc/core.c:100
 ops_exit_list+0xa5/0x150 net/core/net_namespace.c:153
 cleanup_net+0x3b4/0x8b0 net/core/net_namespace.c:554
 process_one_work+0x864/0x1570 kernel/workqueue.c:2153
 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415

Showing all locks held in the system:
2 locks held by kworker/0:0/5:
 #0: 000000007db85f82 ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
 #1: 0000000001e46c46 ((work_completion)(&m->rq)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
3 locks held by ksoftirqd/1/18:
 #0: 00000000d7757a4f (&rq->lock){-.-.}, at: rq_lock kernel/sched/sched.h:1826 [inline]
 #0: 00000000d7757a4f (&rq->lock){-.-.}, at: __schedule+0x1f9/0x2040 kernel/sched/core.c:3455
 #1: 00000000c90b9a1d (&(&local->rx_path_lock)->rlock){+.-.}, at: spin_lock_bh include/linux/spinlock.h:334 [inline]
 #1: 00000000c90b9a1d (&(&local->rx_path_lock)->rlock){+.-.}, at: ieee80211_rx_handlers+0xc9/0x9730 net/mac80211/rx.c:3663
 #2: 00000000c283d8c9 (&pool->lock/1){..-.}, at: spin_lock include/linux/spinlock.h:329 [inline]
 #2: 00000000c283d8c9 (&pool->lock/1){..-.}, at: __queue_work+0x34a/0x1100 kernel/workqueue.c:1419
3 locks held by kworker/u4:2/54:
 #0: 00000000111ba504 ((wq_completion)"%s""netns"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
 #1: 00000000714ce466 (net_cleanup_work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
XFS (loop5): Superblock has unknown incompatible features (0x8) enabled.
 #2: 00000000748c068d (pernet_ops_rwsem){++++}, at: cleanup_net+0xa8/0x8b0 net/core/net_namespace.c:521
XFS (loop5): Filesystem cannot be safely mounted by this kernel.
1 lock held by khungtaskd/1570:
XFS (loop5): SB validate failed with error -22.
 #0: 00000000a4a0a66e (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441
1 lock held by in:imklog/7821:
 #0: 000000005eb67d3e (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
2 locks held by kworker/0:6/21938:
 #0: 000000007db85f82 ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
 #1: 00000000f6854920 ((work_completion)(&m->rq)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
3 locks held by kworker/1:22/699:
 #0: 000000007db85f82 ((wq_completion)"events"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
 #1: 00000000da2cdae2 ((linkwatch_work).work){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
 #2: 00000000f9a72438 (rtnl_mutex){+.+.}, at: linkwatch_event+0xb/0x60 net/core/link_watch.c:236
2 locks held by kworker/1:35/727:
 #0: 000000002fdff8e6 ((wq_completion)"rcu_gp"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
audit: type=1800 audit(1677795078.784:9054): pid=8243 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="bus" dev="sda1" ino=14455 res=0
 #1: 00000000e29e97ab ((work_completion)(&rew.rew_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
audit: type=1804 audit(1677795078.804:9055): pid=8243 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir3801203377/syzkaller.wS3z1X/592/bus" dev="sda1" ino=14455 res=1
2 locks held by syz-executor.1/8219:
 #0: 00000000f9a72438 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline]
 #0: 00000000f9a72438 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779
audit: type=1804 audit(1677795078.844:9056): pid=8243 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir3801203377/syzkaller.wS3z1X/592/bus" dev="sda1" ino=14455 res=1
 #1: 000000001ab55969 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
 #1: 000000001ab55969 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x4dc/0x6f0 kernel/rcu/tree_exp.h:667
1 lock held by syz-executor.5/8243:

=============================================

audit: type=1804 audit(1677795078.884:9057): pid=8243 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir3801203377/syzkaller.wS3z1X/592/bus" dev="sda1" ino=14455 res=1
NMI backtrace for cpu 1
CPU: 1 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
 watchdog+0x991/0xe60 kernel/hung_task.c:287
 kthread+0x33f/0x460 kernel/kthread.c:259
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 8243 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023
RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 kernel/kcov.c:101
Code: 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b 8b 90 60 13 00 00 <83> fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13 00 00 48 8b 11 48
RSP: 0018:ffff88802ad6f720 EFLAGS: 00000046
RAX: ffff8880519ee440 RBX: 0000000000000000 RCX: ffffffff8167a97c
RDX: 0000000000000002 RSI: ffffffff8167a9ac RDI: 0000000000000005
RBP: fffffbfff13e3050 R08: ffffffff8cd4af68 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: dffffc0000000000
R13: 1ffffffff13e3052 R14: 0000000000000246 R15: 0000000000000200
FS:  00007fc59c6db700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc595299718 CR3: 00000000aa01e000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 trace_hardirqs_on+0x6c/0x210 kernel/trace/trace_preemptirq.c:25
 seqcount_lockdep_reader_access include/linux/seqlock.h:83 [inline]
 read_seqcount_begin include/linux/seqlock.h:164 [inline]
 ktime_get_coarse_real_ts64+0x1c7/0x290 kernel/time/timekeeping.c:2169
 current_kernel_time64 include/linux/timekeeping.h:277 [inline]
 current_time+0x6f/0x1c0 fs/inode.c:2162
 atime_needs_update+0x299/0x5f0 fs/inode.c:1711
 touch_atime+0xce/0x2a0 fs/inode.c:1728
 file_accessed include/linux/fs.h:2123 [inline]
 generic_file_buffered_read mm/filemap.c:2322 [inline]
 generic_file_read_iter+0x19a8/0x2b60 mm/filemap.c:2385
 ext4_file_read_iter+0x17b/0x3a0 fs/ext4/file.c:78
 call_read_iter include/linux/fs.h:1815 [inline]
 generic_file_splice_read+0x44a/0x6d0 fs/splice.c:308
 do_splice_to+0x10e/0x160 fs/splice.c:881
 splice_direct_to_actor+0x2b9/0x8d0 fs/splice.c:959
 do_splice_direct+0x1a7/0x270 fs/splice.c:1068
 do_sendfile+0x550/0xc30 fs/read_write.c:1447
 __do_sys_sendfile64 fs/read_write.c:1508 [inline]
 __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fc59e1690f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc59c6db168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007fc59e288f80 RCX: 00007fc59e1690f9
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007fc59e1c4ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000001000fc4 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc0bef0faf R14: 00007fc59c6db300 R15: 0000000000022000