INFO: task syz-executor.0:17847 blocked for more than 143 seconds.
      Tainted: G        W         5.14.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0  state:D stack:29232 pid:17847 ppid: 24653 flags:0x00004004
Call Trace:
 context_switch kernel/sched/core.c:4683 [inline]
 __schedule+0x93a/0x26f0 kernel/sched/core.c:5940
 schedule+0xd3/0x270 kernel/sched/core.c:6019
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6078
 __mutex_lock_common kernel/locking/mutex.c:1036 [inline]
 __mutex_lock+0x7b6/0x10a0 kernel/locking/mutex.c:1104
 __unix_dgram_recvmsg+0x226/0xb60 net/unix/af_unix.c:2119
 unix_dgram_bpf_recvmsg+0x630/0xd10 net/unix/unix_bpf.c:71
 unix_dgram_recvmsg net/unix/af_unix.c:2215 [inline]
 unix_seqpacket_recvmsg+0xed/0x150 net/unix/af_unix.c:2088
 sock_recvmsg_nosec net/socket.c:943 [inline]
 sock_recvmsg net/socket.c:961 [inline]
 sock_recvmsg net/socket.c:957 [inline]
 ____sys_recvmsg+0x2c4/0x600 net/socket.c:2611
 ___sys_recvmsg+0x127/0x200 net/socket.c:2653
 __sys_recvmsg+0xe2/0x1a0 net/socket.c:2683
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x4665e9
RSP: 002b:00007eff876d3188 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000005
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffed9e7c47f R14: 00007eff876d3300 R15: 0000000000022000
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 PID: 1645 Comm: khungtaskd Tainted: G        W         5.14.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105
 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105
 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
 watchdog+0xd0a/0xfc0 kernel/hung_task.c:295
 kthread+0x3e5/0x4d0 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 13511 Comm: kworker/u4:5 Tainted: G        W         5.14.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:native_load_tls arch/x86/include/asm/desc.h:298 [inline]
RIP: 0010:__switch_to+0x15d/0x1060 arch/x86/kernel/process_64.c:582
Code: fc ff df 48 8d 7b 60 48 89 f8 48 c1 e8 03 0f b6 14 08 48 8d 43 67 48 89 c6 48 c1 ee 03 0f b6 0c 0e 48 89 fe 83 e6 07 40 38 f2 <40> 0f 9e c6 84 d2 0f 95 c2 40 84 d6 0f 85 54 0d 00 00 83 e0 07 38
RSP: 0018:ffffc90000e7fd10 EFLAGS: 00000046
RAX: ffff8880b9c0f067 RBX: ffff8880b9c0f000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880b9c0f060
RBP: ffff8880155c8000 R08: ffff88806752ebe4 R09: ffff88806752d4c7
R10: ffffed100cea5a98 R11: 0000000000000000 R12: ffff88806752d4c0
R13: 0000000000000000 R14: ffff88806752ebc0 R15: ffff88806752ebe6
FS:  0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0d72dff000 CR3: 000000000b68e000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace: