======================================================== WARNING: possible irq lock inversion dependency detected 5.15.0-rc5-syzkaller #0 Not tainted -------------------------------------------------------- syz-executor.1/17246 just changed the state of lock: ffffffff8d17ad38 (nl_table_lock){.+.?}-{2:2}, at: __netlink_diag_dump+0x2ce/0x790 net/netlink/diag.c:155 but this lock was taken by another, SOFTIRQ-safe lock in the past: (&local->queue_stop_reason_lock){..-.}-{2:2} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(nl_table_lock); local_irq_disable(); lock(&local->queue_stop_reason_lock); lock(nl_table_lock); lock(&local->queue_stop_reason_lock); *** DEADLOCK *** 3 locks held by syz-executor.1/17246: #0: ffffffff8d0f4308 (sock_diag_mutex){+.+.}-{3:3}, at: sock_diag_rcv+0x17/0x40 net/core/sock_diag.c:275 #1: ffffffff8d0f4488 (sock_diag_table_mutex){+.+.}-{3:3}, at: __sock_diag_cmd net/core/sock_diag.c:229 [inline] #1: ffffffff8d0f4488 (sock_diag_table_mutex){+.+.}-{3:3}, at: sock_diag_rcv_msg+0x19b/0x440 net/core/sock_diag.c:265 #2: ffff88802e070678 (nlk_cb_mutex-SOCK_DIAG){+.+.}-{3:3}, at: netlink_dump+0xb0/0xb60 net/netlink/af_netlink.c:2220 the shortest dependencies between 2nd lock and 1st lock: -> (&local->queue_stop_reason_lock){..-.}-{2:2} { IN-SOFTIRQ-W at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162 ieee80211_tx_frags+0x160/0x970 net/mac80211/tx.c:1668 __ieee80211_tx+0x1ad/0x640 net/mac80211/tx.c:1769 ieee80211_tx+0x32f/0x430 net/mac80211/tx.c:1953 ieee80211_xmit+0x339/0x420 net/mac80211/tx.c:2046 __ieee80211_subif_start_xmit+0x7ba/0xcc0 net/mac80211/tx.c:4255 ieee80211_subif_start_xmit+0xee/0xf00 net/mac80211/tx.c:4391 __netdev_start_xmit include/linux/netdevice.h:4987 [inline] netdev_start_xmit include/linux/netdevice.h:5001 [inline] xmit_one net/core/dev.c:3584 [inline] dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3600 sch_direct_xmit+0x19f/0xbc0 net/sched/sch_generic.c:342 __dev_xmit_skb net/core/dev.c:3811 [inline] __dev_queue_xmit+0x1489/0x36e0 net/core/dev.c:4178 neigh_hh_output include/net/neighbour.h:511 [inline] neigh_output include/net/neighbour.h:520 [inline] ip6_finish_output2+0x922/0x1500 net/ipv6/ip6_output.c:126 __ip6_finish_output net/ipv6/ip6_output.c:191 [inline] __ip6_finish_output+0x4c1/0x1050 net/ipv6/ip6_output.c:170 ip6_finish_output+0x32/0x200 net/ipv6/ip6_output.c:201 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x1e4/0x530 net/ipv6/ip6_output.c:224 dst_output include/net/dst.h:450 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] ndisc_send_skb+0xa99/0x17f0 net/ipv6/ndisc.c:508 ndisc_send_rs+0x12e/0x6f0 net/ipv6/ndisc.c:702 addrconf_rs_timer+0x3f2/0x820 net/ipv6/addrconf.c:3893 call_timer_fn+0x1a5/0x6b0 kernel/time/timer.c:1421 expire_timers kernel/time/timer.c:1466 [inline] __run_timers.part.0+0x675/0xa20 kernel/time/timer.c:1734 __run_timers kernel/time/timer.c:1715 [inline] run_timer_softirq+0xb3/0x1d0 kernel/time/timer.c:1747 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1097 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:638 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] acpi_safe_halt drivers/acpi/processor_idle.c:109 [inline] acpi_idle_do_entry+0x1c6/0x250 drivers/acpi/processor_idle.c:553 acpi_idle_enter+0x361/0x500 drivers/acpi/processor_idle.c:688 cpuidle_enter_state+0x1b1/0xc80 drivers/cpuidle/cpuidle.c:237 cpuidle_enter+0x4a/0xa0 drivers/cpuidle/cpuidle.c:351 call_cpuidle kernel/sched/idle.c:158 [inline] cpuidle_idle_call kernel/sched/idle.c:239 [inline] do_idle+0x3e8/0x590 kernel/sched/idle.c:306 cpu_startup_entry+0x14/0x20 kernel/sched/idle.c:403 start_kernel+0x47a/0x49b init/main.c:1141 secondary_startup_64_no_verify+0xb0/0xbb INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x39/0x50 kernel/locking/spinlock.c:162 ieee80211_do_open+0x15b3/0x2420 net/mac80211/iface.c:1271 ieee80211_open net/mac80211/iface.c:362 [inline] ieee80211_open+0x1a0/0x240 net/mac80211/iface.c:348 __dev_open+0x2bc/0x4d0 net/core/dev.c:1490 __dev_change_flags+0x583/0x750 net/core/dev.c:8774 dev_change_flags+0x93/0x170 net/core/dev.c:8845 devinet_ioctl+0x15d1/0x1ca0 net/ipv4/devinet.c:1142 inet_ioctl+0x1e6/0x320 net/ipv4/af_inet.c:967 sock_do_ioctl+0xcc/0x230 net/socket.c:1118 sock_ioctl+0x2f1/0x640 net/socket.c:1235 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 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+0x44/0xae } ... key at: [] __key.18+0x0/0x40 ... acquired at: __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline] _raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:236 netlink_lock_table net/netlink/af_netlink.c:468 [inline] netlink_broadcast+0x6c/0xd50 net/netlink/af_netlink.c:1513 nlmsg_multicast include/net/netlink.h:1033 [inline] genlmsg_multicast_netns include/net/genetlink.h:311 [inline] nl80211_frame_tx_status+0x8d2/0xb40 net/wireless/nl80211.c:17089 cfg80211_mgmt_tx_status+0x3b/0x50 net/wireless/nl80211.c:17109 ieee80211_report_ack_skb net/mac80211/status.c:650 [inline] ieee80211_report_used_skb+0x1073/0x1620 net/mac80211/status.c:732 ieee80211_free_txskb+0x1e/0x30 net/mac80211/status.c:1274 ieee80211_do_stop+0xd2c/0x2060 net/mac80211/iface.c:564 ieee80211_runtime_change_iftype net/mac80211/iface.c:1699 [inline] ieee80211_if_change_type+0x383/0x840 net/mac80211/iface.c:1737 ieee80211_change_iface+0x57/0x3d0 net/mac80211/cfg.c:159 rdev_change_virtual_intf net/wireless/rdev-ops.h:69 [inline] cfg80211_change_iface+0x335/0xf60 net/wireless/util.c:1073 nl80211_set_interface+0x65c/0x8d0 net/wireless/nl80211.c:3930 genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:731 genl_family_rcv_msg net/netlink/genetlink.c:775 [inline] genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:792 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491 genl_rcv+0x24/0x40 net/netlink/genetlink.c:803 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 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+0x44/0xae -> (nl_table_lock){.+.?}-{2:2} { HARDIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x36/0x70 kernel/locking/spinlock.c:228 netlink_set_err+0x2a/0x3a0 net/netlink/af_netlink.c:1592 br_mdb_notify+0x2dc/0xde0 net/bridge/br_mdb.c:815 br_multicast_host_join+0x2b8/0x370 net/bridge/br_multicast.c:1323 __br_multicast_add_group+0x4f5/0x5e0 net/bridge/br_multicast.c:1366 br_multicast_add_group net/bridge/br_multicast.c:1410 [inline] br_ip6_multicast_add_group.part.0+0x190/0x270 net/bridge/br_multicast.c:1462 br_ip6_multicast_add_group net/bridge/br_multicast.c:2797 [inline] br_ip6_multicast_mld2_report net/bridge/br_multicast.c:2796 [inline] br_multicast_ipv6_rcv net/bridge/br_multicast.c:3734 [inline] br_multicast_rcv+0xc5f/0x6230 net/bridge/br_multicast.c:3792 br_dev_xmit+0x6f6/0x16c0 net/bridge/br_device.c:89 __netdev_start_xmit include/linux/netdevice.h:4987 [inline] netdev_start_xmit include/linux/netdevice.h:5001 [inline] xmit_one net/core/dev.c:3584 [inline] dev_hard_start_xmit+0x1eb/0x920 net/core/dev.c:3600 __dev_queue_xmit+0x2a26/0x36e0 net/core/dev.c:4210 neigh_resolve_output net/core/neighbour.c:1523 [inline] neigh_resolve_output+0x50e/0x820 net/core/neighbour.c:1503 neigh_output include/net/neighbour.h:522 [inline] ip6_finish_output2+0x717/0x1500 net/ipv6/ip6_output.c:126 __ip6_finish_output net/ipv6/ip6_output.c:191 [inline] __ip6_finish_output+0x4c1/0x1050 net/ipv6/ip6_output.c:170 ip6_finish_output+0x32/0x200 net/ipv6/ip6_output.c:201 NF_HOOK_COND include/linux/netfilter.h:296 [inline] ip6_output+0x1e4/0x530 net/ipv6/ip6_output.c:224 dst_output include/net/dst.h:450 [inline] NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] mld_sendpack+0x9a1/0xe40 net/ipv6/mcast.c:1826 mld_send_cr net/ipv6/mcast.c:2127 [inline] mld_ifc_work+0x71c/0xdc0 net/ipv6/mcast.c:2659 process_one_work+0x9bf/0x16b0 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 IN-SOFTIRQ-R at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline] _raw_read_lock_irqsave+0x45/0x90 kernel/locking/spinlock.c:236 netlink_lock_table net/netlink/af_netlink.c:468 [inline] netlink_broadcast+0x6c/0xd50 net/netlink/af_netlink.c:1513 nlmsg_multicast include/net/netlink.h:1033 [inline] nlmsg_notify+0x8f/0x280 net/netlink/af_netlink.c:2534 __neigh_notify+0xdc/0x160 net/core/neighbour.c:3464 neigh_update_notify net/core/neighbour.c:2606 [inline] __neigh_update+0x1080/0x2ba0 net/core/neighbour.c:1440 arp_process+0xa21/0x24e0 net/ipv4/arp.c:911 NF_HOOK include/linux/netfilter.h:307 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] arp_rcv net/ipv4/arp.c:967 [inline] arp_rcv+0x3d7/0x540 net/ipv4/arp.c:942 __netif_receive_skb_list_ptype net/core/dev.c:5492 [inline] __netif_receive_skb_list_ptype net/core/dev.c:5476 [inline] __netif_receive_skb_list_core+0x6c7/0x8e0 net/core/dev.c:5535 __netif_receive_skb_list net/core/dev.c:5587 [inline] netif_receive_skb_list_internal+0x75e/0xd80 net/core/dev.c:5678 gro_normal_list net/core/dev.c:5832 [inline] gro_normal_list net/core/dev.c:5828 [inline] napi_complete_done+0x1f1/0x880 net/core/dev.c:6569 virtqueue_napi_complete drivers/net/virtio_net.c:339 [inline] virtnet_poll+0xc88/0x1190 drivers/net/virtio_net.c:1556 __napi_poll+0xaf/0x440 net/core/dev.c:6999 napi_poll net/core/dev.c:7066 [inline] net_rx_action+0x801/0xb40 net/core/dev.c:7153 __do_softirq+0x29b/0x9c2 kernel/softirq.c:558 invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:636 irq_exit_rcu+0x5/0x20 kernel/softirq.c:648 common_interrupt+0xa4/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x1e/0x40 arch/x86/include/asm/idtentry.h:629 get_current arch/x86/include/asm/current.h:15 [inline] write_comp_data kernel/kcov.c:217 [inline] __sanitizer_cov_trace_const_cmp1+0x15/0x80 kernel/kcov.c:270 tomoyo_domain_quota_is_ok+0x32a/0x550 security/tomoyo/util.c:1092 tomoyo_supervisor+0x2f2/0xf00 security/tomoyo/common.c:2089 tomoyo_audit_path_log security/tomoyo/file.c:168 [inline] tomoyo_path_permission security/tomoyo/file.c:587 [inline] tomoyo_path_permission+0x270/0x3a0 security/tomoyo/file.c:573 tomoyo_path_perm+0x2f0/0x400 security/tomoyo/file.c:838 security_inode_getattr+0xcf/0x140 security/security.c:1333 vfs_getattr fs/stat.c:157 [inline] vfs_statx+0x164/0x390 fs/stat.c:225 vfs_fstatat fs/stat.c:243 [inline] vfs_lstat include/linux/fs.h:3356 [inline] __do_sys_newlstat+0x91/0x110 fs/stat.c:398 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+0x44/0xae SOFTIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:228 __netlink_diag_dump+0x2ce/0x790 net/netlink/diag.c:155 netlink_diag_dump+0x198/0x230 net/netlink/diag.c:196 netlink_dump+0x4b0/0xb60 net/netlink/af_netlink.c:2265 __netlink_dump_start+0x642/0x900 net/netlink/af_netlink.c:2370 netlink_dump_start include/linux/netlink.h:254 [inline] netlink_diag_handler_dump+0x1aa/0x240 net/netlink/diag.c:237 __sock_diag_cmd net/core/sock_diag.c:234 [inline] sock_diag_rcv_msg+0x31a/0x440 net/core/sock_diag.c:265 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491 sock_diag_rcv+0x26/0x40 net/core/sock_diag.c:276 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 sock_write_iter+0x289/0x3c0 net/socket.c:1057 call_write_iter include/linux/fs.h:2163 [inline] do_iter_readv_writev+0x472/0x750 fs/read_write.c:729 do_iter_write+0x188/0x710 fs/read_write.c:855 vfs_writev+0x1aa/0x630 fs/read_write.c:928 do_writev+0x27f/0x300 fs/read_write.c:971 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+0x44/0xae INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_write_lock_irq include/linux/rwlock_api_smp.h:196 [inline] _raw_write_lock_irq+0x32/0x50 kernel/locking/spinlock.c:316 netlink_table_grab+0x2a/0x70 net/netlink/af_netlink.c:434 netlink_add_usersock_entry net/netlink/af_netlink.c:2796 [inline] netlink_proto_init+0x195/0x2ea net/netlink/af_netlink.c:2887 do_one_initcall+0x103/0x650 init/main.c:1303 do_initcall_level init/main.c:1376 [inline] do_initcalls init/main.c:1392 [inline] do_basic_setup init/main.c:1411 [inline] kernel_init_freeable+0x6b1/0x73a init/main.c:1614 kernel_init+0x1a/0x1d0 init/main.c:1505 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 INITIAL READ USE at: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_read_lock_irqsave include/linux/rwlock_api_smp.h:159 [inline] _raw_read_lock_irqsave+0x70/0x90 kernel/locking/spinlock.c:236 netlink_lock_table net/netlink/af_netlink.c:468 [inline] netlink_broadcast+0x6c/0xd50 net/netlink/af_netlink.c:1513 nlmsg_multicast include/net/netlink.h:1033 [inline] genlmsg_multicast_netns include/net/genetlink.h:311 [inline] genl_ctrl_event.isra.0+0x3ea/0xa60 net/netlink/genetlink.c:1093 genl_register_family net/netlink/genetlink.c:430 [inline] genl_register_family+0xad7/0x12e0 net/netlink/genetlink.c:384 thermal_init+0x12/0x253 drivers/thermal/thermal_core.c:1454 do_one_initcall+0x103/0x650 init/main.c:1303 do_initcall_level init/main.c:1376 [inline] do_initcalls init/main.c:1392 [inline] do_basic_setup init/main.c:1411 [inline] kernel_init_freeable+0x6b1/0x73a init/main.c:1614 kernel_init+0x1a/0x1d0 init/main.c:1505 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 } ... key at: [] nl_table_lock+0x18/0x60 ... acquired at: mark_usage kernel/locking/lockdep.c:4506 [inline] __lock_acquire+0x88f/0x54a0 kernel/locking/lockdep.c:4969 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:228 __netlink_diag_dump+0x2ce/0x790 net/netlink/diag.c:155 netlink_diag_dump+0x198/0x230 net/netlink/diag.c:196 netlink_dump+0x4b0/0xb60 net/netlink/af_netlink.c:2265 __netlink_dump_start+0x642/0x900 net/netlink/af_netlink.c:2370 netlink_dump_start include/linux/netlink.h:254 [inline] netlink_diag_handler_dump+0x1aa/0x240 net/netlink/diag.c:237 __sock_diag_cmd net/core/sock_diag.c:234 [inline] sock_diag_rcv_msg+0x31a/0x440 net/core/sock_diag.c:265 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491 sock_diag_rcv+0x26/0x40 net/core/sock_diag.c:276 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 sock_write_iter+0x289/0x3c0 net/socket.c:1057 call_write_iter include/linux/fs.h:2163 [inline] do_iter_readv_writev+0x472/0x750 fs/read_write.c:729 do_iter_write+0x188/0x710 fs/read_write.c:855 vfs_writev+0x1aa/0x630 fs/read_write.c:928 do_writev+0x27f/0x300 fs/read_write.c:971 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+0x44/0xae stack backtrace: CPU: 1 PID: 17246 Comm: syz-executor.1 Not tainted 5.15.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 print_irq_inversion_bug kernel/locking/lockdep.c:203 [inline] check_usage_backwards kernel/locking/lockdep.c:4066 [inline] mark_lock_irq kernel/locking/lockdep.c:4156 [inline] mark_lock.cold+0x1d/0x8e kernel/locking/lockdep.c:4593 mark_usage kernel/locking/lockdep.c:4506 [inline] __lock_acquire+0x88f/0x54a0 kernel/locking/lockdep.c:4969 lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 __raw_read_lock include/linux/rwlock_api_smp.h:149 [inline] _raw_read_lock+0x5b/0x70 kernel/locking/spinlock.c:228 __netlink_diag_dump+0x2ce/0x790 net/netlink/diag.c:155 netlink_diag_dump+0x198/0x230 net/netlink/diag.c:196 netlink_dump+0x4b0/0xb60 net/netlink/af_netlink.c:2265 __netlink_dump_start+0x642/0x900 net/netlink/af_netlink.c:2370 netlink_dump_start include/linux/netlink.h:254 [inline] netlink_diag_handler_dump+0x1aa/0x240 net/netlink/diag.c:237 __sock_diag_cmd net/core/sock_diag.c:234 [inline] sock_diag_rcv_msg+0x31a/0x440 net/core/sock_diag.c:265 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491 sock_diag_rcv+0x26/0x40 net/core/sock_diag.c:276 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 sock_write_iter+0x289/0x3c0 net/socket.c:1057 call_write_iter include/linux/fs.h:2163 [inline] do_iter_readv_writev+0x472/0x750 fs/read_write.c:729 do_iter_write+0x188/0x710 fs/read_write.c:855 vfs_writev+0x1aa/0x630 fs/read_write.c:928 do_writev+0x27f/0x300 fs/read_write.c:971 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+0x44/0xae RIP: 0033:0x7fc0a8e86a39 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc0a63fc188 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007fc0a8f89f60 RCX: 00007fc0a8e86a39 RDX: 0000000000000001 RSI: 0000000020000100 RDI: 0000000000000003 RBP: 00007fc0a8ee0c5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffca5400d7f R14: 00007fc0a63fc300 R15: 0000000000022000