syzbot

INFO: task syz-executor192:3645 blocked for more than 143 seconds.
      Not tainted 5.18.0-rc4-syzkaller-00064-g8f4dd16603ce #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor192 state:D stack:23680 pid: 3645 ppid:  3625 flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5073 [inline]
 __schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
 schedule+0xd2/0x1f0 kernel/sched/core.c:6460
 schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1860
 do_wait_for_common kernel/sched/completion.c:85 [inline]
 __wait_for_common+0x373/0x530 kernel/sched/completion.c:106
 __flush_work+0x56c/0xb10 kernel/workqueue.c:3075
 __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3162
 tls_sk_proto_close+0x4a7/0xaf0 net/tls/tls_main.c:307
 inet_release+0x12e/0x280 net/ipv4/af_inet.c:428
 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:481
 __sock_release+0xcd/0x280 net/socket.c:650
 sock_close+0x18/0x20 net/socket.c:1318
 __fput+0x277/0x9d0 fs/file_table.c:317
 task_work_run+0xdd/0x1a0 kernel/task_work.c:164
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
 exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x19/0x60 kernel/entry/common.c:294
 do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f26b364e753
RSP: 002b:00007ffed5ac85b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f26b364e753
RDX: fffffffffffffe60 RSI: 00000000200005c0 RDI: 0000000000000005
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffffffffffe60
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffed5ac85d0
R13: 00000000000f4240 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:1/14:
 #0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
 #0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
 #0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
 #0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
 #0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
 #0: ffff888010c67d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
 #1: ffffc9000034fda8 ((work_completion)(&(&sw_ctx_tx->tx_work.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
 #2: ffff8880787afcd8 (&ctx->tx_lock){+.+.}-{3:3}, at: tx_work_handler+0x127/0x190 net/tls/tls_sw.c:2300
1 lock held by khungtaskd/28:
 #0: ffffffff8bd7f5e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6467
3 locks held by kworker/1:2/141:
2 locks held by getty/3274:
 #0: ffff88814c431098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc90001bf92e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcea/0x1230 drivers/tty/n_tty.c:2075
1 lock held by syz-executor192/3645:
 #0: ffff8880712d5510 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:748 [inline]
 #0: ffff8880712d5510 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:649

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

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.18.0-rc4-syzkaller-00064-g8f4dd16603ce #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
 watchdog+0xc1d/0xf50 kernel/hung_task.c:369
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 60 Comm: kworker/u4:3 Not tainted 5.18.0-rc4-syzkaller-00064-g8f4dd16603ce #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:debug_smp_processor_id+0x13/0x20 lib/smp_processor_id.c:60
Code: 28 48 c7 c7 60 a3 26 8a e8 6a e8 bb ff e8 e2 28 cc ff eb a2 0f 1f 00 0f 1f 44 00 00 48 c7 c6 a0 a3 26 8a 48 c7 c7 e0 a3 26 8a <e9> 78 fe ff ff 0f 1f 84 00 00 00 00 00 55 48 89 fd 0f 1f 44 00 00
RSP: 0018:ffffc90001c0f938 EFLAGS: 00000086
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8135c5f1
RDX: dffffc0000000000 RSI: ffffffff8a26a3a0 RDI: ffffffff8a26a3e0
RBP: ffff8881401a4040 R08: 0000000000000000 R09: ffffffff8db81e17
R10: fffffbfff1b703c2 R11: 000000000000003f R12: 0000000000000001
R13: 0000000000000000 R14: 0000000000000000 R15: 000000000001744c
FS:  0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005631ac21ca88 CR3: 0000000011e2a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:341 [inline]
 rcu_is_watching+0xe/0xb0 kernel/rcu/tree.c:1138
 rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
 rcu_read_lock_sched_held+0x1c/0x70 kernel/rcu/update.c:123
 trace_tlb_flush include/trace/events/tlb.h:38 [inline]
 trace_tlb_flush+0x126/0x1b0 include/trace/events/tlb.h:38
 switch_mm_irqs_off+0x4a4/0xa10 arch/x86/mm/tlb.c:630
 use_temporary_mm arch/x86/kernel/alternative.c:962 [inline]
 __text_poke+0x44a/0x8c0 arch/x86/kernel/alternative.c:1059
 text_poke arch/x86/kernel/alternative.c:1121 [inline]
 text_poke_bp_batch+0x375/0x6b0 arch/x86/kernel/alternative.c:1385
 text_poke_flush arch/x86/kernel/alternative.c:1542 [inline]
 text_poke_flush arch/x86/kernel/alternative.c:1539 [inline]
 text_poke_finish+0x16/0x30 arch/x86/kernel/alternative.c:1549
 arch_jump_label_transform_apply+0x13/0x20 arch/x86/kernel/jump_label.c:146
 jump_label_update+0x32f/0x410 kernel/jump_label.c:830
 static_key_enable_cpuslocked+0x1b1/0x260 kernel/jump_label.c:177
 static_key_enable+0x16/0x20 kernel/jump_label.c:190
 toggle_allocation_gate mm/kfence/core.c:764 [inline]
 toggle_allocation_gate+0x100/0x390 mm/kfence/core.c:756
 process_one_work+0x996/0x1610 kernel/workqueue.c:2289
 worker_thread+0x665/0x1080 kernel/workqueue.c:2436
 kthread+0x2e9/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.181 msecs
----------------
Code disassembly (best guess), 1 bytes skipped:
   0:	48 c7 c7 60 a3 26 8a 	mov    $0xffffffff8a26a360,%rdi
   7:	e8 6a e8 bb ff       	callq  0xffbbe876
   c:	e8 e2 28 cc ff       	callq  0xffcc28f3
  11:	eb a2                	jmp    0xffffffb5
  13:	0f 1f 00             	nopl   (%rax)
  16:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  1b:	48 c7 c6 a0 a3 26 8a 	mov    $0xffffffff8a26a3a0,%rsi
  22:	48 c7 c7 e0 a3 26 8a 	mov    $0xffffffff8a26a3e0,%rdi
* 29:	e9 78 fe ff ff       	jmpq   0xfffffea6 <-- trapping instruction
  2e:	0f 1f 84 00 00 00 00 	nopl   0x0(%rax,%rax,1)
  35:	00
  36:	55                   	push   %rbp
  37:	48 89 fd             	mov    %rdi,%rbp
  3a:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)