INFO: task syz-executor.4:25554 blocked for more than 143 seconds.
Not tainted 6.3.0-syzkaller-10620-g33afd4b76393 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:26080 pid:25554 ppid:5023 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5309 [inline]
__schedule+0xc91/0x5770 kernel/sched/core.c:6627
schedule+0xde/0x1a0 kernel/sched/core.c:6703
__lock_sock+0x141/0x260 net/core/sock.c:2893
lock_sock_nested+0xda/0xf0 net/core/sock.c:3474
lock_sock include/net/sock.h:1697 [inline]
sk_stream_wait_memory+0x9a4/0xf30 net/core/stream.c:145
tcp_sendmsg_locked+0x944/0x2960 net/ipv4/tcp.c:1447
tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1485
inet_sendmsg+0x9d/0xe0 net/ipv4/af_inet.c:825
sock_sendmsg_nosec net/socket.c:724 [inline]
sock_sendmsg+0xde/0x190 net/socket.c:747
__sys_sendto+0x23a/0x340 net/socket.c:2144
__do_sys_sendto net/socket.c:2156 [inline]
__se_sys_sendto net/socket.c:2152 [inline]
__x64_sys_sendto+0xe1/0x1b0 net/socket.c:2152
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: 0033:0x7f2e89c8c169
RSP: 002b:00007f2e8aa5d168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f2e89dabf80 RCX: 00007f2e89c8c169
RDX: ffffffffffffff58 RSI: 0000000020000140 RDI: 0000000000000007
RBP: 00007f2e89ce7ca1 R08: 0000000020000100 R09: 0000000000000010
R10: 0000000020008005 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc80b785cf R14: 00007f2e8aa5d300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c793070 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c792d70 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
2 locks held by ksoftirqd/1/20:
1 lock held by khungtaskd/27:
#0: ffffffff8c793c80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6545
2 locks held by getty/4744:
#0: ffff88814b0ee098
(&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900020282f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
3 locks held by kworker/u4:11/6294:
#0: ffff888016d5d938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888016d5d938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888016d5d938 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff888016d5d938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline]
#0: ffff888016d5d938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline]
#0: ffff888016d5d938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x87a/0x15c0 kernel/workqueue.c:2361
#1: ffffc900048f7da8 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8ae/0x15c0 kernel/workqueue.c:2365
#2: ffffffff8c79efc0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6a0 kernel/rcu/tree.c:3961
3 locks held by kworker/1:4/21767:
#0: ffff888012469d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012469d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012469d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1324 [inline]
#0: ffff888012469d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:639 [inline]
#0: ffff888012469d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:666 [inline]
#0: ffff888012469d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x15c0 kernel/workqueue.c:2361
#1: ffffc90003427da8 (fqdir_free_work){+.+.}-{0:0}, at: process_one_work+0x8ae/0x15c0 kernel/workqueue.c:2365
#2: ffffffff8c79efc0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6a0 kernel/rcu/tree.c:3961
1 lock held by syz-executor.4/25554:
#0: ffff8880755873f0 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1697 [inline]
#0: ffff8880755873f0 (sk_lock-AF_INET){+.+.}-{0:0}, at: sk_stream_wait_memory+0x9a4/0xf30 net/core/stream.c:145
1 lock held by syz-executor.4/25555:
2 locks held by syz-executor.0/26243:
#0: ffffffff8e0edfd0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4cb/0x8e0 net/core/net_namespace.c:487
#1: ffffffff8c79efc0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6a0 kernel/rcu/tree.c:3961
2 locks held by syz-executor.1/26285:
#0: ffffffff8e0edfd0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4cb/0x8e0 net/core/net_namespace.c:487
#1: ffffffff8c79efc0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6a0 kernel/rcu/tree.c:3961
2 locks held by syz-executor.3/26279:
#0: ffffffff8e0edfd0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4cb/0x8e0 net/core/net_namespace.c:487
#1: ffffffff8c79efc0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6a0 kernel/rcu/tree.c:3961
2 locks held by syz-executor.2/26282:
#0: ffffffff8e0edfd0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4cb/0x8e0 net/core/net_namespace.c:487
#1: ffffffff8c79efc0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6a0 kernel/rcu/tree.c:3961
2 locks held by syz-executor.5/26295:
#0: ffffffff8e0edfd0 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x4cb/0x8e0 net/core/net_namespace.c:487
#1: ffffffff8c79efc0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6a0 kernel/rcu/tree.c:3961
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.3.0-syzkaller-10620-g33afd4b76393 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106
nmi_cpu_backtrace+0x29c/0x350 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x2a4/0x300 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xe16/0x1090 kernel/hung_task.c:379
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 17780 Comm: kworker/u4:22 Not tainted 6.3.0-syzkaller-10620-g33afd4b76393 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
Workqueue: events_unbound toggle_allocation_gate
RIP: 0010:mark_lock.part.0+0x2/0x1970 kernel/locking/lockdep.c:4610
Code: e8 03 a5 70 00 e9 27 fe ff ff 48 c7 c7 4c 2b 79 8e e8 f2 a4 70 00 e9 b3 fe ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 41 57 <41> 56 41 55 41 89 d5 48 ba 00 00 00 00 00 fc ff df 41 54 49 89 f4
RSP: 0018:ffffc90004c6f970 EFLAGS: 00000002
RAX: 0000000000000004 RBX: 0000000000000004 RCX: 1ffffffff22a18d6
RDX: 0000000000000002 RSI: ffff888023450c68 RDI: ffff888023450100
RBP: 0000000000000002 R08: 0000000000000000 R09: ffffffff9150bd07
R10: 0000000000000001 R11: 0000000000000000 R12: ffff888023450100
R13: dffffc0000000000 R14: ffff888023450bc8 R15: ffffffff8c8eefe0
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00e0d5000 CR3: 000000000c571000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
mark_lock kernel/locking/lockdep.c:4615 [inline]
mark_held_locks+0x9f/0xe0 kernel/locking/lockdep.c:4247
__trace_hardirqs_on_caller kernel/locking/lockdep.c:4265 [inline]
lockdep_hardirqs_on_prepare kernel/locking/lockdep.c:4332 [inline]
lockdep_hardirqs_on_prepare+0x139/0x410 kernel/locking/lockdep.c:4284
trace_hardirqs_on+0x36/0x40 kernel/trace/trace_preemptirq.c:61
__text_poke+0x64e/0x8e0 arch/x86/kernel/alternative.c:1644
text_poke arch/x86/kernel/alternative.c:1669 [inline]
text_poke_bp_batch+0x4d3/0x770 arch/x86/kernel/alternative.c:2048
text_poke_flush arch/x86/kernel/alternative.c:2161 [inline]
text_poke_flush arch/x86/kernel/alternative.c:2158 [inline]
text_poke_finish+0x1a/0x30 arch/x86/kernel/alternative.c:2168
arch_jump_label_transform_apply+0x17/0x30 arch/x86/kernel/jump_label.c:146
jump_label_update+0x32f/0x410 kernel/jump_label.c:829
static_key_enable_cpuslocked+0x1b5/0x270 kernel/jump_label.c:205
static_key_enable+0x1a/0x20 kernel/jump_label.c:218
toggle_allocation_gate mm/kfence/core.c:831 [inline]
toggle_allocation_gate+0xf8/0x230 mm/kfence/core.c:823
process_one_work+0x991/0x15c0 kernel/workqueue.c:2390
worker_thread+0x669/0x1090 kernel/workqueue.c:2537
kthread+0x344/0x440 kernel/kthread.c:379
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308