INFO: task dhcpcd:5240 blocked for more than 149 seconds. Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:27992 pid:5240 ppid:4634 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 exp_funnel_lock kernel/rcu/tree_exp.h:315 [inline] synchronize_rcu_expedited+0x785/0x890 kernel/rcu/tree_exp.h:946 synchronize_rcu+0x113/0x3f0 kernel/rcu/tree.c:3543 __unregister_prot_hook+0x3f2/0x540 net/packet/af_packet.c:382 packet_do_bind+0x42f/0xce0 net/packet/af_packet.c:3227 __sys_bind+0x233/0x2e0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f89ffc9cce7 RSP: 002b:00007fff69921028 EFLAGS: 00000217 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 000055d9a3c79b60 RCX: 00007f89ffc9cce7 RDX: 0000000000000014 RSI: 00007fff69921038 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000055d9a55b1850 R09: 00007f89ffd5da60 R10: 0000000000200000 R11: 0000000000000217 R12: 000055d9a55af740 R13: 000055d9a55b15e8 R14: 00007fff6994190c R15: 00007fff69941934 INFO: task dhcpcd:5241 blocked for more than 151 seconds. Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:24808 pid:5241 ppid:4634 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 synchronize_rcu_expedited+0x6d1/0x890 kernel/rcu/tree_exp.h:961 synchronize_rcu+0x113/0x3f0 kernel/rcu/tree.c:3543 __unregister_prot_hook+0x3f2/0x540 net/packet/af_packet.c:382 packet_do_bind+0x42f/0xce0 net/packet/af_packet.c:3227 __sys_bind+0x233/0x2e0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f89ffc9cce7 RSP: 002b:00007fff69921028 EFLAGS: 00000217 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 000055d9a3c79b60 RCX: 00007f89ffc9cce7 RDX: 0000000000000014 RSI: 00007fff69921038 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000055d9a55b1850 R09: 00007f89ffd5da60 R10: 0000000000200000 R11: 0000000000000217 R12: 000055d9a55af740 R13: 000055d9a55ab8b8 R14: 00007fff6994190c R15: 00007fff69941934 INFO: task dhcpcd:5242 blocked for more than 152 seconds. Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:28344 pid:5242 ppid:4634 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6690 __mutex_lock_common+0xecf/0x26c0 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:799 exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline] synchronize_rcu_expedited+0x46f/0x890 kernel/rcu/tree_exp.h:946 synchronize_rcu+0x113/0x3f0 kernel/rcu/tree.c:3543 __unregister_prot_hook+0x3f2/0x540 net/packet/af_packet.c:382 packet_do_bind+0x42f/0xce0 net/packet/af_packet.c:3227 __sys_bind+0x233/0x2e0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f89ffc9cce7 RSP: 002b:00007fff69921028 EFLAGS: 00000217 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 000055d9a3c79b60 RCX: 00007f89ffc9cce7 RDX: 0000000000000014 RSI: 00007fff69921038 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000055d9a55b1850 R09: 00007f89ffd5da60 R10: 0000000000200000 R11: 0000000000000217 R12: 000055d9a55af740 R13: 000055d9a55aba38 R14: 00007fff6994190c R15: 00007fff69941934 INFO: task dhcpcd:5243 blocked for more than 154 seconds. Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:28424 pid:5243 ppid:4634 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 exp_funnel_lock kernel/rcu/tree_exp.h:315 [inline] synchronize_rcu_expedited+0x785/0x890 kernel/rcu/tree_exp.h:946 synchronize_rcu+0x113/0x3f0 kernel/rcu/tree.c:3543 __unregister_prot_hook+0x3f2/0x540 net/packet/af_packet.c:382 packet_do_bind+0x42f/0xce0 net/packet/af_packet.c:3227 __sys_bind+0x233/0x2e0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f89ffc9cce7 RSP: 002b:00007fff69921028 EFLAGS: 00000217 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 000055d9a3c79b60 RCX: 00007f89ffc9cce7 RDX: 0000000000000014 RSI: 00007fff69921038 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000055d9a55b19d0 R09: 00007f89ffd5da60 R10: 0000000000200000 R11: 0000000000000217 R12: 000055d9a55af740 R13: 000055d9a55b18b8 R14: 00007fff6994190c R15: 00007fff69941934 INFO: task dhcpcd:5244 blocked for more than 155 seconds. Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:27992 pid:5244 ppid:4634 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 exp_funnel_lock kernel/rcu/tree_exp.h:315 [inline] synchronize_rcu_expedited+0x785/0x890 kernel/rcu/tree_exp.h:946 synchronize_rcu+0x113/0x3f0 kernel/rcu/tree.c:3543 __unregister_prot_hook+0x3f2/0x540 net/packet/af_packet.c:382 packet_do_bind+0x42f/0xce0 net/packet/af_packet.c:3227 __sys_bind+0x233/0x2e0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f89ffc9cce7 RSP: 002b:00007fff69921028 EFLAGS: 00000217 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 000055d9a3c79b60 RCX: 00007f89ffc9cce7 RDX: 0000000000000014 RSI: 00007fff69921038 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000055d9a55b1b50 R09: 00007f89ffd5da60 R10: 0000000000200000 R11: 0000000000000217 R12: 000055d9a55af740 R13: 000055d9a55b1a38 R14: 00007fff6994190c R15: 00007fff69941934 INFO: task dhcpcd:5245 blocked for more than 155 seconds. Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:27512 pid:5245 ppid:4634 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x9d1/0xe40 kernel/sched/core.c:6555 schedule+0xcb/0x190 kernel/sched/core.c:6631 exp_funnel_lock kernel/rcu/tree_exp.h:315 [inline] synchronize_rcu_expedited+0x785/0x890 kernel/rcu/tree_exp.h:946 synchronize_rcu+0x113/0x3f0 kernel/rcu/tree.c:3543 __unregister_prot_hook+0x3f2/0x540 net/packet/af_packet.c:382 packet_do_bind+0x42f/0xce0 net/packet/af_packet.c:3227 __sys_bind+0x233/0x2e0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f89ffc9cce7 RSP: 002b:00007fff69921028 EFLAGS: 00000217 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 000055d9a3c79b60 RCX: 00007f89ffc9cce7 RDX: 0000000000000014 RSI: 00007fff69921038 RDI: 0000000000000005 RBP: 0000000000000000 R08: 000055d9a55b1cd0 R09: 00007f89ffd5da60 R10: 0000000000200000 R11: 0000000000000217 R12: 000055d9a55af740 R13: 000055d9a55b1bb8 R14: 00007fff6994190c R15: 00007fff69941934 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8d5239d0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/13: #0: ffffffff8d5241d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/28: #0: ffffffff8d523800 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 2 locks held by getty/4742: #0: ffff88814a3e9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6e8/0x1e50 drivers/tty/n_tty.c:2177 1 lock held by syz-executor296/5123: #0: ffff888077420fa8 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #0: ffff888077420fa8 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x51f/0x1060 mm/filemap.c:3161 1 lock held by syz-executor296/5124: #0: ffff888077420fa8 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #0: ffff888077420fa8 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x51f/0x1060 mm/filemap.c:3161 1 lock held by syz-executor296/5125: #0: ffff888077420fa8 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #0: ffff888077420fa8 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x51f/0x1060 mm/filemap.c:3161 1 lock held by syz-executor296/5126: #0: ffff888077420fa8 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #0: ffff888077420fa8 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x51f/0x1060 mm/filemap.c:3161 1 lock held by syz-executor296/5127: #0: ffff888077420fa8 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_invalidate_lock_shared include/linux/fs.h:811 [inline] #0: ffff888077420fa8 (mapping.invalidate_lock){++++}-{3:3}, at: filemap_fault+0x51f/0x1060 mm/filemap.c:3161 6 locks held by kworker/1:6/5168: 1 lock held by dhcpcd/5240: #0: ffff88807845c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline] #0: ffff88807845c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194 2 locks held by dhcpcd/5241: #0: ffff88802c0d0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline] #0: ffff88802c0d0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194 #1: ffffffff8d528e38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline] #1: ffffffff8d528e38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x3a6/0x890 kernel/rcu/tree_exp.h:946 2 locks held by dhcpcd/5242: #0: ffff888018e96130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline] #0: ffff888018e96130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194 #1: ffffffff8d528e38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline] #1: ffffffff8d528e38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x46f/0x890 kernel/rcu/tree_exp.h:946 1 lock held by dhcpcd/5243: #0: ffff8880935c8130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline] #0: ffff8880935c8130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/5244: #0: ffff88802b8b0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline] #0: ffff88802b8b0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/5245: #0: ffff88802b8b2130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1725 [inline] #0: ffff88802b8b2130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2a/0xce0 net/packet/af_packet.c:3194 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #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+0x1e3/0x2d0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x4e3/0x560 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x19b/0x3e0 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+0xcd5/0xd20 kernel/hung_task.c:377 kthread+0x266/0x300 kernel/kthread.c:376 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: 5168 Comm: kworker/1:6 Not tainted 6.2.0-rc3-syzkaller-00008-g1fe4fd6f5cad #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: events drain_vmap_area_work RIP: 0010:rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:121 [inline] RIP: 0010:rcu_is_watching+0xc/0xb0 kernel/rcu/tree.c:713 Code: 80 a1 52 8d 4c 89 e6 e8 f2 7c 0f 03 e9 2a ff ff ff e8 e8 eb 4f 09 0f 1f 84 00 00 00 00 00 41 57 41 56 53 65 ff 05 5c 6e 8d 7e af 02 50 09 89 c3 83 f8 08 73 75 49 bf 00 00 00 00 00 fc ff df RSP: 0000:ffffc9000419f760 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 1ffff92000833ef0 RCX: ffff888026b68000 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8eb025a8 RBP: ffffc9000419f808 R08: dffffc0000000000 R09: fffffbfff1d604b6 R10: fffffbfff1d604b6 R11: 1ffffffff1d604b5 R12: dffffc0000000000 R13: 1ffff92000833f14 R14: dffffc0000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1e54035040 CR3: 000000002c0ce000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_read_lock_held_common kernel/rcu/update.c:108 [inline] rcu_read_lock_sched_held+0x6b/0x130 kernel/rcu/update.c:123 trace_lock_acquire+0x98/0x260 include/trace/events/lock.h:24 lock_acquire+0xa5/0x400 kernel/locking/lockdep.c:5639 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:350 [inline] kasan_depopulate_vmalloc_pte+0x16/0x80 mm/kasan/shadow.c:368 apply_to_pte_range mm/memory.c:2600 [inline] apply_to_pmd_range mm/memory.c:2644 [inline] apply_to_pud_range mm/memory.c:2680 [inline] apply_to_p4d_range mm/memory.c:2716 [inline] __apply_to_page_range+0x964/0xc70 mm/memory.c:2750 kasan_release_vmalloc+0x96/0xb0 mm/kasan/shadow.c:486 __purge_vmap_area_lazy+0xcfc/0x18f0 mm/vmalloc.c:1776 drain_vmap_area_work+0x3c/0xd0 mm/vmalloc.c:1809 process_one_work+0x81c/0xd10 kernel/workqueue.c:2289 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308