INFO: task syz-executor.3:10435 blocked for more than 143 seconds. Not tainted 6.1.0-rc3-syzkaller-00158-gee6050c8af96 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:27328 pid:10435 ppid:3648 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:5191 [inline] __schedule+0xae9/0x53f0 kernel/sched/core.c:6503 schedule+0xda/0x1b0 kernel/sched/core.c:6579 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6638 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747 devl_lock net/core/devlink.c:275 [inline] devlink_nl_cmd_health_reporter_get_dumpit+0x3bf/0x850 net/core/devlink.c:7931 netlink_dump+0x541/0xc20 net/netlink/af_netlink.c:2275 __netlink_dump_start+0x647/0x900 net/netlink/af_netlink.c:2380 genl_family_rcv_msg_dumpit+0x1c9/0x310 net/netlink/genetlink.c:714 genl_family_rcv_msg net/netlink/genetlink.c:830 [inline] genl_rcv_msg+0x55d/0x780 net/netlink/genetlink.c:850 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2540 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536 __sys_sendmsg+0xf3/0x1c0 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f62ae08b5a9 RSP: 002b:00007f62aedcf168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f62ae1ac050 RCX: 00007f62ae08b5a9 RDX: 0000000000000000 RSI: 0000000020000300 RDI: 0000000000000004 RBP: 00007f62ae0e67b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdee2c419f R14: 00007f62aedcf300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/11: #0: ffffffff8bf84ff0 (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/12: #0: ffffffff8bf84cf0 (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/27: #0: ffffffff8bf85b40 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6494 2 locks held by getty/3284: #0: ffff88814b49b098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244 #1: ffffc900020482f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177 2 locks held by kworker/1:14/10524: 3 locks held by kworker/u4:33/18968: 2 locks held by kworker/0:14/5674: #0: ffff888011872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888011872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline] #0: ffff888011872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline] #0: ffff888011872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline] #0: ffff888011872538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260 #1: ffffc90004537da8 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264 3 locks held by syz-executor.3/10426: #0: ffffffff8d849cb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860 #1: ffff8880202a12f8 (&devlink->lock_key#2){+.+.}-{3:3}, at: devl_lock net/core/devlink.c:275 [inline] #1: ffff8880202a12f8 (&devlink->lock_key#2){+.+.}-{3:3}, at: devlink_nl_pre_doit+0x9f/0xb50 net/core/devlink.c:783 #2: ffffffff8bf906c0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x44/0x6c0 kernel/rcu/tree.c:3953 3 locks held by syz-executor.3/10435: #0: ffffffff8d849cb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:860 #1: ffff88807b347688 (nlk_cb_mutex-GENERIC){+.+.}-{3:3}, at: netlink_dump+0xae/0xc20 net/netlink/af_netlink.c:2223 #2: ffff8880202a12f8 (&devlink->lock_key#2){+.+.}-{3:3}, at: devl_lock net/core/devlink.c:275 [inline] #2: ffff8880202a12f8 (&devlink->lock_key#2){+.+.}-{3:3}, at: devlink_nl_cmd_health_reporter_get_dumpit+0x3bf/0x850 net/core/devlink.c:7931 5 locks held by syz-executor.3/10540: #0: ffff888028704460 (sb_writers#9){.+.+}-{0:0}, at: ksys_write+0x127/0x250 fs/read_write.c:637 #1: ffff888037bc9088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x28c/0x610 fs/kernfs/file.c:321 #2: ffff888021263048 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b0/0x610 fs/kernfs/file.c:322 #3: ffffffff8ce90308 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xc5/0x470 drivers/net/netdevsim/bus.c:209 #4: ffff8880270bf0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:835 [inline] #4: ffff8880270bf0e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1073 [inline] #4: ffff8880270bf0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xa0/0x700 drivers/base/dd.c:1272 3 locks held by syz-executor.3/12725: 2 locks held by dhcpcd/13063: #0: ffff88808ca18130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808ca18130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 #1: ffffffff8bf907f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline] #1: ffffffff8bf907f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x5db/0x770 kernel/rcu/tree_exp.h:946 2 locks held by dhcpcd/13064: #0: ffff88803daca130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88803daca130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 #1: ffffffff8bf907f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:324 [inline] #1: ffffffff8bf907f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x24b/0x770 kernel/rcu/tree_exp.h:946 1 lock held by dhcpcd/13065: #0: ffff888086e66130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888086e66130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13066: #0: ffff888089998130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888089998130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13067: #0: ffff8880300ba130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff8880300ba130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13068: #0: ffff888036b10130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888036b10130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13069: #0: ffff888086ce0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888086ce0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13070: #0: ffff88808df88130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808df88130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13071: #0: ffff88808df8a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808df8a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13072: #0: ffff8880753ec130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff8880753ec130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13073: #0: ffff88808df80130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808df80130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13074: #0: ffff88808e1c4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808e1c4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13075: #0: ffff8880221e2130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff8880221e2130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13076: #0: ffff88808dd42130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808dd42130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13077: #0: ffff88808d2e8130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808d2e8130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13078: #0: ffff88808d2ee130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808d2ee130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13079: #0: ffff8880403c0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff8880403c0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13080: #0: ffff88808d92e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808d92e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13081: #0: ffff88808d93e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808d93e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13082: #0: ffff888048b9e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888048b9e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13083: #0: ffff88808cb38130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808cb38130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13084: #0: ffff88802fd30130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88802fd30130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13085: #0: ffff88803f32c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88803f32c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13086: #0: ffff888025df8130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888025df8130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13087: #0: ffff88808ceec130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808ceec130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13088: #0: ffff88808a334130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808a334130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13089: #0: ffff88802b01c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88802b01c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13090: #0: ffff888036acc130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888036acc130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13091: #0: ffff88801e312130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88801e312130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13092: #0: ffff88802ce2e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88802ce2e130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13093: #0: ffff888032cc4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888032cc4130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13094: #0: ffff88803e4ca130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88803e4ca130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13095: #0: ffff88803e96a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88803e96a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13096: #0: ffff88808db68130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808db68130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13097: #0: ffff888088168130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888088168130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13098: #0: ffff888016b8c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888016b8c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13099: #0: ffff888030dde130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888030dde130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13100: #0: ffff88802f466130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88802f466130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13101: #0: ffff88803ab8c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88803ab8c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13102: #0: ffff88803002c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88803002c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13103: #0: ffff88803588c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88803588c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13104: #0: ffff888030a48130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888030a48130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13105: #0: ffff888086e0a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888086e0a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13106: #0: ffff888074f20130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888074f20130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13107: #0: ffff88808d108130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808d108130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13108: #0: ffff88808ceee130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808ceee130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13109: #0: ffff88804113c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88804113c130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13110: #0: ffff88802fe7a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88802fe7a130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd/13111: #0: ffff88808dda0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff88808dda0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x2f/0xdc0 net/packet/af_packet.c:3194 1 lock held by dhcpcd-run-hook/13212: ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.1.0-rc3-syzkaller-00158-gee6050c8af96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x32f/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+0xc71/0xfc0 kernel/hung_task.c:377 kthread+0x2e4/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 12725 Comm: syz-executor.3 Not tainted 6.1.0-rc3-syzkaller-00158-gee6050c8af96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 RIP: 0010:__lock_acquire+0x1b1/0x56d0 kernel/locking/lockdep.c:4964 Code: 0f 76 08 85 c9 0f 84 f6 10 00 00 48 ba ab aa aa aa aa aa aa aa 48 2d 60 9d 92 90 49 8d 9d 50 0a 00 00 48 c1 f8 06 48 0f af c2 <48> 89 5c 24 28 48 89 44 24 18 8b 44 24 10 48 89 c6 48 8d 04 80 85 RSP: 0018:ffffc900046cf898 EFLAGS: 00000803 RAX: 000000000000002a RBX: ffff88803e982c90 RCX: 0000000000000000 RDX: aaaaaaaaaaaaaaab RSI: 0000000000000002 RDI: ffffffff8bf85b48 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: fffffbfff1bc2e22 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88803e982240 R14: ffffffff8bf85b40 R15: 0000000000000002 FS: 00005555568cb400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8609970351 CR3: 000000008eb35000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1df/0x630 kernel/locking/lockdep.c:5633 rcu_lock_acquire include/linux/rcupdate.h:304 [inline] rcu_read_lock include/linux/rcupdate.h:738 [inline] xa_find+0xed/0x330 lib/xarray.c:2019 devlinks_xa_find_get.constprop.0+0x93/0x260 net/core/devlink.c:300 devlinks_xa_find_get_first net/core/devlink.c:328 [inline] devlink_pernet_pre_exit+0x86/0x1c0 net/core/devlink.c:12507 ops_pre_exit_list net/core/net_namespace.c:159 [inline] setup_net+0x749/0xc50 net/core/net_namespace.c:349 copy_net_ns+0x318/0x760 net/core/net_namespace.c:478 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0xc1/0x1f0 kernel/nsproxy.c:226 ksys_unshare+0x445/0x920 kernel/fork.c:3188 __do_sys_unshare kernel/fork.c:3259 [inline] __se_sys_unshare kernel/fork.c:3257 [inline] __x64_sys_unshare+0x2d/0x40 kernel/fork.c:3257 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fa8e0a8cb67 Code: 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 10 01 00 00 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:00007fff50e11fa8 EFLAGS: 00000206 ORIG_RAX: 0000000000000110 RAX: ffffffffffffffda RBX: 00007fff50e125e8 RCX: 00007fa8e0a8cb67 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000000 RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000003 R13: 00007fff50e12080 R14: 00007fa8e0bac9d8 R15: 000000000000000c