INFO: task syz-executor259:3640 blocked for more than 143 seconds.
Not tainted 6.1.0-rc7-syzkaller-01884-gff36c447e233 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor259 state:D stack:25608 pid:3640 ppid:3629 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5209 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6521
schedule+0xde/0x1b0 kernel/sched/core.c:6597
__lock_sock+0x141/0x260 net/core/sock.c:2896
lock_sock_nested+0xda/0xf0 net/core/sock.c:3466
__mptcp_close_ssk+0x19e/0x780 net/mptcp/protocol.c:2322
mptcp_destroy_common+0x169/0x650 net/mptcp/protocol.c:3152
mptcp_disconnect+0xb7/0x450 net/mptcp/protocol.c:3003
__inet_stream_connect+0xc95/0xed0 net/ipv4/af_inet.c:717
tcp_sendmsg_fastopen+0x3ca/0x710 net/ipv4/tcp.c:1200
mptcp_sendmsg_fastopen net/mptcp/protocol.c:1676 [inline]
mptcp_sendmsg+0x1368/0x1930 net/mptcp/protocol.c:1715
inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:827
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xd3/0x120 net/socket.c:734
__sys_sendto+0x23a/0x340 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xe1/0x1b0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fa2492f5b09
RSP: 002b:00007ffd7d67dc48 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa2492f5b09
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 000000002400c844 R11: 0000000000000246 R12: 00007ffd7d67dc70
R13: 00000000000f4240 R14: 0000000000000000 R15: 0000000000000000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c58f270 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c58ef70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8c58fdc0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
2 locks held by getty/3306:
#0: ffff888017085098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by syz-executor259/3640:
#0: ffff8880749d8130 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline]
#0: ffff8880749d8130 (sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg+0xce/0x1930 net/mptcp/protocol.c:1708
#1: ffff8880766599b0 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline]
#1: ffff8880766599b0 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg_fastopen net/mptcp/protocol.c:1672 [inline]
#1: ffff8880766599b0 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_sendmsg+0x12a5/0x1930 net/mptcp/protocol.c:1715
#2: ffff8880766599b0 (k-sk_lock-AF_INET/1){+.+.}-{0:0}, at: __mptcp_close_ssk+0x19e/0x780 net/mptcp/protocol.c:2322
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc7-syzkaller-01884-gff36c447e233 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x333/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc75/0xfc0 kernel/hung_task.c:377
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 56 Comm: kworker/u4:4 Not tainted 6.1.0-rc7-syzkaller-01884-gff36c447e233 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:insn_field_set arch/x86/include/asm/insn.h:30 [inline]
RIP: 0010:insn_get_displacement arch/x86/lib/insn.c:493 [inline]
RIP: 0010:insn_get_displacement+0x43c/0x6c0 arch/x86/lib/insn.c:455
Code: 03 38 d0 7c 09 84 d2 74 05 e8 10 98 24 f8 48 8d 7b 35 89 6b 30 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <48> 89 fa 83 e2 07 38 d0 7f 09 84 c0 74 05 e8 a1 97 24 f8 c6 43 35
RSP: 0018:ffffc900015779e8 EFLAGS: 00000a07
RAX: 0000000000000000 RBX: ffffc90001577a78 RCX: 0000000000000000
RDX: 1ffff920002aef55 RSI: ffffffff89a944fe RDI: ffffc90001577aad
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: ffffffff8a4654ef
R13: 000000000000000f R14: 1ffff920002aef49 R15: ffffffff8a4654ea
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005610ecd36018 CR3: 000000000c28e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
insn_get_immediate arch/x86/lib/insn.c:632 [inline]
insn_get_length arch/x86/lib/insn.c:707 [inline]
insn_decode+0x35f/0x3b0 arch/x86/lib/insn.c:747
text_poke_loc_init+0xa6/0x450 arch/x86/kernel/alternative.c:1590
arch_jump_label_transform_queue+0x98/0x100 arch/x86/kernel/jump_label.c:138
__jump_label_update+0x12e/0x410 kernel/jump_label.c:475
jump_label_update+0x32f/0x410 kernel/jump_label.c:829
static_key_disable_cpuslocked+0x156/0x1b0 kernel/jump_label.c:235
static_key_disable+0x1a/0x20 kernel/jump_label.c:243
toggle_allocation_gate mm/kfence/core.c:814 [inline]
toggle_allocation_gate+0x187/0x390 mm/kfence/core.c:792
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306