syzbot

INFO: task dhcpcd:5133 blocked for more than 150 seconds.
      Not tainted 6.4.0-rc7-syzkaller-01944-g3674fbf0451d #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd          state:D stack:29016 pid:5133  ppid:4676   flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5343 [inline]
 __schedule+0xc9a/0x5880 kernel/sched/core.c:6669
 schedule+0xde/0x1a0 kernel/sched/core.c:6745
 synchronize_rcu_expedited+0x5d4/0x770 kernel/rcu/tree_exp.h:1007
 synchronize_rcu+0x2f1/0x3a0 kernel/rcu/tree.c:3499
 synchronize_net+0x4e/0x60 net/core/dev.c:10759
 __unregister_prot_hook+0x4b3/0x5c0 net/packet/af_packet.c:380
 packet_do_bind+0x994/0xe90 net/packet/af_packet.c:3238
 packet_bind+0x105/0x150 net/packet/af_packet.c:3322
 __sys_bind+0x1ed/0x260 net/socket.c:1791
 __do_sys_bind net/socket.c:1802 [inline]
 __se_sys_bind net/socket.c:1800 [inline]
 __x64_sys_bind+0x73/0xb0 net/socket.c:1800
 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: 0033:0x7f2419686677
RSP: 002b:00007ffde955d438 EFLAGS: 00000217 ORIG_RAX: 0000000000000031
RAX: ffffffffffffffda RBX: 000055d51aa09ca3 RCX: 00007f2419686677
RDX: 0000000000000014 RSI: 00007ffde955d448 RDI: 0000000000000005
RBP: 0000000000000000 R08: 000055d51bb38f30 R09: 0000000000200000
R10: 000000000000006d R11: 0000000000000217 R12: 000055d51bb351e0
R13: 000055d51bb3a138 R14: 00007ffde957dd2c R15: 000055d51bb3a104
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:1/9:
1 lock held by rcu_tasks_kthre/13:
 #0: ffffffff8c7984f0 (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/14:
 #0: ffffffff8c7981f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 kernel/rcu/tasks.h:518
1 lock held by khungtaskd/28:
 #0: ffffffff8c799100 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6559
3 locks held by kworker/u4:4/75:
2 locks held by getty/4764:
 #0: ffff88814a9cc098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2176
2 locks held by dhcpcd/5133:
 #0: ffff88806eb3a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1708 [inline]
 #0: ffff88806eb3a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xe90 net/packet/af_packet.c:3202
 #1: ffffffff8c7a4578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:293 [inline]
 #1: ffffffff8c7a4578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x64a/0x770 kernel/rcu/tree_exp.h:992
2 locks held by dhcpcd/5146:
 #0: ffff88807dfd6130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1708 [inline]
 #0: ffff88807dfd6130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xe90 net/packet/af_packet.c:3202
 #1: ffffffff8c7a4578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:325 [inline]
 #1: ffffffff8c7a4578 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3e8/0x770 kernel/rcu/tree_exp.h:992
1 lock held by dhcpcd/5147:
 #0: ffff88807b7ee130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1708 [inline]
 #0: ffff88807b7ee130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xe90 net/packet/af_packet.c:3202
1 lock held by dhcpcd/5406:
 #0: ffff88807d064130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1708 [inline]
 #0: ffff88807d064130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xe90 net/packet/af_packet.c:3202
1 lock held by dhcpcd/5407:
 #0: ffff88807d066130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1708 [inline]
 #0: ffff88807d066130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xe90 net/packet/af_packet.c:3202
1 lock held by dhcpcd/5408:
 #0: ffff88802b9d0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1708 [inline]
 #0: ffff88802b9d0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xe90 net/packet/af_packet.c:3202

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

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.4.0-rc7-syzkaller-01944-g3674fbf0451d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
Call Trace:
 <TASK>
 __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
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5461 Comm: syz-executor138 Not tainted 6.4.0-rc7-syzkaller-01944-g3674fbf0451d #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:__might_sleep+0x0/0x160 kernel/sched/core.c:10069
Code: 9b fd ff ff 48 c7 c7 00 f2 40 8c e8 3a 29 7f 00 e9 c5 fb ff ff e8 30 29 7f 00 e9 10 fc ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 <f3> 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 41 54 41 89 f4 55 48 89
RSP: 0018:ffffc9000352f4f8 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffffc9000352f5b8 RCX: ffffc9000352f488
RDX: 1ffff110040bb8c7 RSI: 0000000000000132 RDI: ffffffff8a5925c0
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffffff8e7b1f17
R10: fffffbfff1cf63e2 R11: 0000000000094001 R12: 0000000000000000
R13: 0000000000000cc0 R14: ffffc9000352f5c0 R15: 0000000000000000
FS:  00007f83b5502700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f83b55a9528 CR3: 0000000059262000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 might_alloc include/linux/sched/mm.h:306 [inline]
 prepare_alloc_pages+0x3da/0x570 mm/page_alloc.c:4539
 __alloc_pages+0x149/0x4a0 mm/page_alloc.c:4757
 alloc_pages+0x1aa/0x270 mm/mempolicy.c:2279
 __get_free_pages+0xc/0x40 mm/page_alloc.c:4818
 kasan_populate_vmalloc_pte mm/kasan/shadow.c:323 [inline]
 kasan_populate_vmalloc_pte+0x2e/0x180 mm/kasan/shadow.c:314
 apply_to_pte_range mm/memory.c:2585 [inline]
 apply_to_pmd_range mm/memory.c:2629 [inline]
 apply_to_pud_range mm/memory.c:2665 [inline]
 apply_to_p4d_range mm/memory.c:2701 [inline]
 __apply_to_page_range+0x68c/0x1030 mm/memory.c:2735
 alloc_vmap_area+0x500/0x1e00 mm/vmalloc.c:1642
 __get_vm_area_node+0x145/0x3f0 mm/vmalloc.c:2551
 __vmalloc_node_range+0x252/0x14c0 mm/vmalloc.c:3226
 kvmalloc_node+0x156/0x1a0 mm/util.c:629
 kvmalloc include/linux/slab.h:697 [inline]
 xt_alloc_table_info+0x40/0xa0 net/netfilter/x_tables.c:1192
 do_replace net/ipv4/netfilter/ip_tables.c:1122 [inline]
 do_ipt_set_ctl+0x514/0xb10 net/ipv4/netfilter/ip_tables.c:1627
 nf_setsockopt+0x87/0xe0 net/netfilter/nf_sockopt.c:101
 ip_setsockopt+0xf2/0x110 net/ipv4/ip_sockglue.c:1467
 raw_setsockopt+0x23e/0x2d0 net/ipv4/raw.c:835
 __sys_setsockopt+0x2c6/0x5b0 net/socket.c:2262
 __do_sys_setsockopt net/socket.c:2273 [inline]
 __se_sys_setsockopt net/socket.c:2270 [inline]
 __x64_sys_setsockopt+0xbe/0x160 net/socket.c:2270
 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: 0033:0x7f83b555bd79
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 18 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f83b5502318 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f83b55dd488 RCX: 00007f83b555bd79
RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f83b55dd480 R08: 0000000000000258 R09: 0000000000000000
R10: 0000000020000500 R11: 0000000000000246 R12: 0000000020000560
R13: 00007ffd1bdb827f R14: 00007f83b5502400 R15: 0000000000022000
 </TASK>