INFO: task syz-executor.2:19495 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.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
syz-executor.2  D26136 19495   8142 0x00000004
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
 xlog_grant_head_wait+0x13b/0xcd0 fs/xfs/xfs_log.c:263
 xlog_grant_head_check+0x3c8/0x420 fs/xfs/xfs_log.c:325
 xfs_log_reserve+0x347/0xa70 fs/xfs/xfs_log.c:454
 xfs_trans_reserve+0x63a/0x9c0 fs/xfs/xfs_trans.c:197
 xfs_trans_alloc+0x2f7/0x700 fs/xfs/xfs_trans.c:289
 xlog_finish_defer_ops fs/xfs/xfs_log_recover.c:4841 [inline]
 xlog_recover_process_intents+0x274/0x430 fs/xfs/xfs_log_recover.c:4947
 xlog_recover_finish+0x5f/0x230 fs/xfs/xfs_log_recover.c:5839
 xfs_log_mount_finish+0x135/0x450 fs/xfs/xfs_log.c:778
 xfs_mountfs+0x1032/0x1bf0 fs/xfs/xfs_mount.c:974
 xfs_fs_fill_super+0xd0e/0x1540 fs/xfs/xfs_super.c:1720
 mount_bdev+0x2fc/0x3b0 fs/super.c:1158
 mount_fs+0xa3/0x310 fs/super.c:1261
 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961
 vfs_kern_mount fs/namespace.c:951 [inline]
 do_new_mount fs/namespace.c:2492 [inline]
 do_mount+0x115c/0x2f50 fs/namespace.c:2822
 ksys_mount+0xcf/0x130 fs/namespace.c:3038
 __do_sys_mount fs/namespace.c:3052 [inline]
 __se_sys_mount fs/namespace.c:3049 [inline]
 __x64_sys_mount+0xba/0x150 fs/namespace.c:3049
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fa485dc45da
Code: Bad RIP value.
RSP: 002b:00007fa484334f88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 000000000000bb33 RCX: 00007fa485dc45da
RDX: 000000002000bb00 RSI: 0000000020000000 RDI: 00007fa484334fe0
RBP: 00007fa484335020 R08: 00007fa484335020 R09: 0000000000008000
R10: 0000000000008000 R11: 0000000000000202 R12: 000000002000bb00
R13: 0000000020000000 R14: 00007fa484334fe0 R15: 0000000020000040
netlink: 28 bytes leftover after parsing attributes in process `syz-executor.4'.

Showing all locks held in the system:
2 locks held by kworker/1:0/19:
 #0: 000000002d8ee6c1 ((wq_completion)"rcu_gp"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2124
 #1: 000000006ef2da08 ((work_completion)(&rew.rew_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2128
1 lock held by khungtaskd/1571:
 #0: 00000000a9d4152a (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4441
1 lock held by in:imklog/7811:
 #0: 000000009073c70f (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
2 locks held by syz-executor.2/19495:
 #0: 000000009ab2f97a (&type->s_umount_key#73/1){+.+.}, at: alloc_super fs/super.c:226 [inline]
 #0: 000000009ab2f97a (&type->s_umount_key#73/1){+.+.}, at: sget_userns+0x20b/0xcd0 fs/super.c:519
 #1: 00000000848b8f39 (sb_internal#4){.+.+}, at: sb_start_intwrite include/linux/fs.h:1626 [inline]
 #1: 00000000848b8f39 (sb_internal#4){.+.+}, at: xfs_trans_alloc+0x4fc/0x700 fs/xfs/xfs_trans.c:271
1 lock held by syz-executor.3/5768:
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: netdev_run_todo+0x719/0xab0 net/core/dev.c:9005
1 lock held by syz-executor.4/5807:
 #0: 00000000b7103699 (rcu_preempt_state.barrier_mutex){+.+.}, at: _rcu_barrier+0x59/0x3e0 kernel/rcu/tree.c:3430
2 locks held by syz-executor.5/5808:
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline]
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779
 #1: 000000004db16f45 (rcu_preempt_state.exp_mutex){+.+.}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
 #1: 000000004db16f45 (rcu_preempt_state.exp_mutex){+.+.}, at: _synchronize_rcu_expedited+0x4dc/0x6f0 kernel/rcu/tree_exp.h:667
1 lock held by syz-executor.0/5820:
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline]
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779
1 lock held by syz-executor.0/5825:
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline]
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779
1 lock held by syz-executor.1/5829:
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline]
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779
1 lock held by syz-executor.1/5830:
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline]
 #0: 00000000fdf0bbde (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779

validate_nla: 23 callbacks suppressed
netlink: 'syz-executor.0': attribute type 1 has an invalid length.
=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 1571 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
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 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5808 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:150 [inline]
RIP: 0010:unwind_next_frame+0x285/0x1400 arch/x86/kernel/unwind_orc.c:422
Code: 48 89 54 24 30 48 89 74 24 28 44 89 5c 24 20 e8 71 de 6e 00 48 8b 54 24 30 48 8b 74 24 28 44 8b 5c 24 20 8b 0c 95 bc 91 17 8c <8d> 56 01 48 b8 00 00 00 00 00 fc ff df 48 8d 3c 95 bc 91 17 8c 49
RSP: 0018:ffff888219c17250 EFLAGS: 00000046
RAX: 0000000000000003 RBX: 1ffff11043382e53 RCX: 0000000000118974
RDX: 00000000000577d7 RSI: 00000000000577d7 RDI: ffffffff8c2d7118
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000001
R10: ffff888219c173df R11: 0000000000074071 R12: ffff888219c173c8
R13: ffff888219c173b5 R14: ffff888219c17380 R15: ffffffff8677d78a
FS:  00007f7c3ee6a700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2ff28000 CR3: 0000000238e83000 CR4: 00000000003426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44
 save_stack mm/kasan/kasan.c:448 [inline]
 set_track mm/kasan/kasan.c:460 [inline]
 __kasan_slab_free+0x126/0x1f0 mm/kasan/kasan.c:521
 __cache_free mm/slab.c:3503 [inline]
 kfree+0xcc/0x210 mm/slab.c:3822
 kvfree+0x59/0x60 mm/util.c:452
 netif_free_tx_queues net/core/dev.c:8582 [inline]
 free_netdev+0x57/0x410 net/core/dev.c:9241
 netdev_run_todo+0x89b/0xab0 net/core/dev.c:9002
 rtnl_unlock net/core/rtnetlink.c:117 [inline]
 rtnetlink_rcv_msg+0x460/0xb80 net/core/rtnetlink.c:4783
 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463
 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline]
 netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351
 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227
 __sys_sendmsg net/socket.c:2265 [inline]
 __do_sys_sendmsg net/socket.c:2274 [inline]
 __se_sys_sendmsg net/socket.c:2272 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f7c4095b0a9
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:00007f7c3ee6a168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7c40a7b1f0 RCX: 00007f7c4095b0a9
RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000003
RBP: 00007f7c409b6ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd90984adf R14: 00007f7c3ee6a300 R15: 0000000000022000
netlink: 'syz-executor.1': attribute type 1 has an invalid length.