INFO: task syz-executor.5:10083 blocked for more than 143 seconds.
      Not tainted 5.10.0-rc2-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5  state:D stack:26728 pid:10083 ppid:  8632 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:3774 [inline]
 __schedule+0x92c/0xcb0 kernel/sched/core.c:4523
 schedule+0x14b/0x200 kernel/sched/core.c:4601
 schedule_timeout+0x15c/0x250 kernel/time/timer.c:1871
 gfs2_gl_hash_clear+0x128/0x380 fs/gfs2/glock.c:1989
 gfs2_fill_super+0x2aa7/0x3db0 fs/gfs2/ops_fstype.c:1233
 get_tree_bdev+0x3e9/0x5f0 fs/super.c:1344
 gfs2_get_tree+0x4c/0x1f0 fs/gfs2/ops_fstype.c:1256
 vfs_get_tree+0x88/0x270 fs/super.c:1549
 do_new_mount fs/namespace.c:2875 [inline]
 path_mount+0x17b4/0x2a20 fs/namespace.c:3205
 do_mount fs/namespace.c:3218 [inline]
 __do_sys_mount fs/namespace.c:3426 [inline]
 __se_sys_mount+0x28c/0x320 fs/namespace.c:3403
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x46090a
Code: Unable to access opcode bytes at RIP 0x4608e0.
RSP: 002b:00007f6f08a5ca88 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6f08a5cb20 RCX: 000000000046090a
RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007f6f08a5cae0
RBP: 00007f6f08a5cae0 R08: 00007f6f08a5cb20 R09: 0000000020000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000000
R13: 0000000020000100 R14: 0000000020000200 R15: 0000000020047a20

Showing all locks held in the system:
3 locks held by kworker/u4:0/8:
1 lock held by khungtaskd/1639:
 #0: ffffffff8bae6800 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 arch/x86/pci/mmconfig_64.c:151
1 lock held by systemd-journal/4881:
1 lock held by in:imklog/8147:
 #0: ffff88801873e5f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24b/0x2e0 fs/file.c:932
3 locks held by rs:main Q:Reg/8148:
1 lock held by syz-executor.5/10083:
 #0: ffff888018ad60e0 (&type->s_umount_key#50/1){+.+.}-{3:3}, at: alloc_super+0x1a7/0x860 fs/super.c:229

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

NMI backtrace for cpu 1
CPU: 1 PID: 1639 Comm: khungtaskd Not tainted 5.10.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x137/0x1be lib/dump_stack.c:118
 nmi_cpu_backtrace+0x16c/0x190 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x191/0x2f0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:209 [inline]
 watchdog+0xcb0/0xcf0 kernel/hung_task.c:295
 kthread+0x36b/0x390 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 21 Comm: kworker/u4:1 Not tainted 5.10.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: phy7 ieee80211_iface_work
RIP: 0010:preempt_count_add+0xe/0x130 kernel/sched/core.c:4183
Code: 67 00 e9 29 ff ff ff 48 c7 c7 20 81 9a 8b 48 89 de e8 76 45 8f 02 e9 22 ff ff ff 90 41 57 41 56 53 89 fb 65 01 3d 6e 44 b2 7e <48> c7 c0 00 79 2e 8f 48 c1 e8 03 49 bf 00 00 00 00 00 fc ff df 42
RSP: 0018:ffffc90000dbf0b0 EFLAGS: 00000282
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffc90000dbff58
RDX: dffffc0000000000 RSI: ffffffff81004bef RDI: 0000000000000001
RBP: 1ffff920001b7e33 R08: 000000000000000a R09: ffffc90000dbf248
R10: fffff520001b7e3f R11: 0000000000000000 R12: ffffc90000dbf1d0
R13: 1ffff920001b7e3a R14: dffffc0000000000 R15: ffffffff81004bef
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd6131c4000 CR3: 000000002974b000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 unwind_next_frame+0xad/0x1e20 arch/x86/kernel/unwind_orc.c:428
 arch_stack_walk+0xb2/0xe0 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xad/0x150 kernel/stacktrace.c:121
 kasan_save_stack mm/kasan/common.c:48 [inline]
 kasan_set_track mm/kasan/common.c:56 [inline]
 __kasan_kmalloc+0x111/0x140 mm/kasan/common.c:461
 slab_post_alloc_hook+0x3e/0x2b0 mm/slab.h:526
 slab_alloc_node mm/slub.c:2891 [inline]
 slab_alloc mm/slub.c:2899 [inline]
 __kmalloc+0x13d/0x290 mm/slub.c:3966
 kmalloc include/linux/slab.h:557 [inline]
 ieee802_11_parse_elems_crc+0xac/0xec0 net/mac80211/util.c:1472
 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2048 [inline]
 ieee80211_bss_info_update+0x82b/0xc30 net/mac80211/scan.c:212
 ieee80211_rx_bss_info net/mac80211/ibss.c:1126 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1615 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x717/0x29e0 net/mac80211/ibss.c:1642
 ieee80211_iface_work+0x6b0/0xa80 net/mac80211/iface.c:1455
 process_one_work+0x789/0xfc0 kernel/workqueue.c:2272
 worker_thread+0xaa4/0x1460 kernel/workqueue.c:2418
 kthread+0x36b/0x390 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296