device macsec0 entered promiscuous mode ===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 5.8.0-rc7-syzkaller #0 Not tainted ----------------------------------------------------- syz-executor.1/23615 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: ffff888071f420f0 (&net->nsid_lock){+.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:353 [inline] ffff888071f420f0 (&net->nsid_lock){+.+.}-{2:2}, at: peernet2id_alloc+0xd0/0x430 net/core/net_namespace.c:254 and this task is already holding: ffff88806032a280 (&macsec_netdev_addr_lock_key){+...}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:358 [inline] ffff88806032a280 (&macsec_netdev_addr_lock_key){+...}-{2:2}, at: netif_addr_lock_bh include/linux/netdevice.h:4248 [inline] ffff88806032a280 (&macsec_netdev_addr_lock_key){+...}-{2:2}, at: dev_uc_add+0x1f/0xb0 net/core/dev_addr_lists.c:588 which would create a new lock dependency: (&macsec_netdev_addr_lock_key){+...}-{2:2} -> (&net->nsid_lock){+.+.}-{2:2} but this new dependency connects a SOFTIRQ-irq-safe lock: (&mc->mca_lock){+.-.}-{2:2} ... which became SOFTIRQ-irq-safe at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:358 [inline] mld_send_cr net/ipv6/mcast.c:1950 [inline] mld_ifc_timer_expire+0x497/0xf10 net/ipv6/mcast.c:2474 call_timer_fn+0x1ac/0x760 kernel/time/timer.c:1416 expire_timers kernel/time/timer.c:1461 [inline] __run_timers.part.0+0x54c/0xa20 kernel/time/timer.c:1792 __run_timers kernel/time/timer.c:1764 [inline] run_timer_softirq+0xae/0x1a0 kernel/time/timer.c:1805 __do_softirq+0x34c/0xa60 kernel/softirq.c:292 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] do_softirq_own_stack+0x111/0x170 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:387 [inline] __irq_exit_rcu kernel/softirq.c:417 [inline] irq_exit_rcu+0x229/0x270 kernel/softirq.c:429 sysvec_apic_timer_interrupt+0x54/0x120 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:585 arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline] seqcount_lockdep_reader_access include/linux/seqlock.h:99 [inline] read_seqcount_begin+0x116/0x270 include/linux/seqlock.h:182 read_seqbegin include/linux/seqlock.h:466 [inline] read_seqbegin_or_lock include/linux/seqlock.h:572 [inline] prepend_path+0x15b/0xb20 fs/d_path.c:89 d_absolute_path+0xfa/0x180 fs/d_path.c:201 tomoyo_get_absolute_path security/tomoyo/realpath.c:101 [inline] tomoyo_realpath_from_path+0x282/0x620 security/tomoyo/realpath.c:276 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x212/0x3f0 security/tomoyo/file.c:822 security_inode_getattr+0xcf/0x140 security/security.c:1278 vfs_getattr fs/stat.c:121 [inline] vfs_statx+0x170/0x390 fs/stat.c:206 vfs_lstat include/linux/fs.h:3302 [inline] __do_sys_newlstat+0x91/0x110 fs/stat.c:374 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 to a SOFTIRQ-irq-unsafe lock: (&net->nsid_lock){+.+.}-{2:2} ... which became SOFTIRQ-irq-unsafe at: ... lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:353 [inline] peernet2id_alloc+0xd0/0x430 net/core/net_namespace.c:254 dev_change_net_namespace+0x2ef/0x1200 net/core/dev.c:10213 do_setlink+0x197/0x35c0 net/core/rtnetlink.c:2509 __rtnl_newlink+0xc21/0x1750 net/core/rtnetlink.c:3272 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2352 ___sys_sendmsg+0xf3/0x170 net/socket.c:2406 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 other info that might help us debug this: Chain exists of: &mc->mca_lock --> &macsec_netdev_addr_lock_key --> &net->nsid_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&net->nsid_lock); local_irq_disable(); lock(&mc->mca_lock); lock(&macsec_netdev_addr_lock_key); lock(&mc->mca_lock); *** DEADLOCK *** 2 locks held by syz-executor.1/23615: #0: ffffffff8a7bde28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8a7bde28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 net/core/rtnetlink.c:5458 #1: ffff88806032a280 (&macsec_netdev_addr_lock_key){+...}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:358 [inline] #1: ffff88806032a280 (&macsec_netdev_addr_lock_key){+...}-{2:2}, at: netif_addr_lock_bh include/linux/netdevice.h:4248 [inline] #1: ffff88806032a280 (&macsec_netdev_addr_lock_key){+...}-{2:2}, at: dev_uc_add+0x1f/0xb0 net/core/dev_addr_lists.c:588 the dependencies between SOFTIRQ-irq-safe lock and the holding lock: -> (&mc->mca_lock){+.-.}-{2:2} { HARDIRQ-ON-W at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:358 [inline] mld_del_delrec+0x493/0x720 net/ipv6/mcast.c:783 __ipv6_dev_mc_inc+0x809/0xca0 net/ipv6/mcast.c:927 ipv6_add_dev+0x969/0x1060 net/ipv6/addrconf.c:453 addrconf_init+0xd3/0x39a net/ipv6/addrconf.c:7104 inet6_init+0x368/0x705 net/ipv6/af_inet6.c:1140 do_one_initcall+0x10a/0x7b0 init/main.c:1199 do_initcall_level init/main.c:1272 [inline] do_initcalls init/main.c:1288 [inline] do_basic_setup init/main.c:1308 [inline] kernel_init_freeable+0x4f4/0x5a3 init/main.c:1505 kernel_init+0xd/0x1c0 init/main.c:1399 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 IN-SOFTIRQ-W at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:358 [inline] mld_send_cr net/ipv6/mcast.c:1950 [inline] mld_ifc_timer_expire+0x497/0xf10 net/ipv6/mcast.c:2474 call_timer_fn+0x1ac/0x760 kernel/time/timer.c:1416 expire_timers kernel/time/timer.c:1461 [inline] __run_timers.part.0+0x54c/0xa20 kernel/time/timer.c:1792 __run_timers kernel/time/timer.c:1764 [inline] run_timer_softirq+0xae/0x1a0 kernel/time/timer.c:1805 __do_softirq+0x34c/0xa60 kernel/softirq.c:292 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:711 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] do_softirq_own_stack+0x111/0x170 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:387 [inline] __irq_exit_rcu kernel/softirq.c:417 [inline] irq_exit_rcu+0x229/0x270 kernel/softirq.c:429 sysvec_apic_timer_interrupt+0x54/0x120 arch/x86/kernel/apic/apic.c:1091 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:585 arch_local_irq_restore arch/x86/include/asm/paravirt.h:770 [inline] seqcount_lockdep_reader_access include/linux/seqlock.h:99 [inline] read_seqcount_begin+0x116/0x270 include/linux/seqlock.h:182 read_seqbegin include/linux/seqlock.h:466 [inline] read_seqbegin_or_lock include/linux/seqlock.h:572 [inline] prepend_path+0x15b/0xb20 fs/d_path.c:89 d_absolute_path+0xfa/0x180 fs/d_path.c:201 tomoyo_get_absolute_path security/tomoyo/realpath.c:101 [inline] tomoyo_realpath_from_path+0x282/0x620 security/tomoyo/realpath.c:276 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x212/0x3f0 security/tomoyo/file.c:822 security_inode_getattr+0xcf/0x140 security/security.c:1278 vfs_getattr fs/stat.c:121 [inline] vfs_statx+0x170/0x390 fs/stat.c:206 vfs_lstat include/linux/fs.h:3302 [inline] __do_sys_newlstat+0x91/0x110 fs/stat.c:374 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 INITIAL USE at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:358 [inline] mld_del_delrec+0x493/0x720 net/ipv6/mcast.c:783 __ipv6_dev_mc_inc+0x809/0xca0 net/ipv6/mcast.c:927 ipv6_add_dev+0x969/0x1060 net/ipv6/addrconf.c:453 addrconf_init+0xd3/0x39a net/ipv6/addrconf.c:7104 inet6_init+0x368/0x705 net/ipv6/af_inet6.c:1140 do_one_initcall+0x10a/0x7b0 init/main.c:1199 do_initcall_level init/main.c:1272 [inline] do_initcalls init/main.c:1288 [inline] do_basic_setup init/main.c:1308 [inline] kernel_init_freeable+0x4f4/0x5a3 init/main.c:1505 kernel_init+0xd/0x1c0 init/main.c:1399 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 } ... key at: [] __key.7+0x0/0x40 ... acquired at: __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:358 [inline] netif_addr_lock_bh include/linux/netdevice.h:4248 [inline] __dev_mc_add net/core/dev_addr_lists.c:774 [inline] dev_mc_add+0x1f/0xb0 net/core/dev_addr_lists.c:792 igmp6_group_added+0x4bc/0x5d0 net/ipv6/mcast.c:669 __ipv6_dev_mc_inc+0x811/0xca0 net/ipv6/mcast.c:928 addrconf_join_solict net/ipv6/addrconf.c:2142 [inline] addrconf_join_solict net/ipv6/addrconf.c:2134 [inline] addrconf_dad_begin net/ipv6/addrconf.c:3908 [inline] addrconf_dad_work+0xc92/0x1280 net/ipv6/addrconf.c:4035 process_one_work+0x94c/0x1670 kernel/workqueue.c:2269 worker_thread+0x64c/0x1120 kernel/workqueue.c:2415 kthread+0x3b5/0x4a0 kernel/kthread.c:291 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:293 -> (&macsec_netdev_addr_lock_key){+...}-{2:2} { HARDIRQ-ON-W at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:358 [inline] netif_addr_lock_bh include/linux/netdevice.h:4248 [inline] dev_set_rx_mode net/core/dev.c:8204 [inline] __dev_change_flags+0x18d/0x660 net/core/dev.c:8265 dev_change_flags+0x8a/0x160 net/core/dev.c:8349 do_setlink+0x87d/0x35c0 net/core/rtnetlink.c:2604 __rtnl_newlink+0xc21/0x1750 net/core/rtnetlink.c:3272 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 __sys_sendto+0x21c/0x320 net/socket.c:1995 __do_sys_sendto net/socket.c:2007 [inline] __se_sys_sendto net/socket.c:2003 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2003 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 INITIAL USE at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:358 [inline] netif_addr_lock_bh include/linux/netdevice.h:4248 [inline] dev_set_rx_mode net/core/dev.c:8204 [inline] __dev_change_flags+0x18d/0x660 net/core/dev.c:8265 dev_change_flags+0x8a/0x160 net/core/dev.c:8349 do_setlink+0x87d/0x35c0 net/core/rtnetlink.c:2604 __rtnl_newlink+0xc21/0x1750 net/core/rtnetlink.c:3272 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 __sys_sendto+0x21c/0x320 net/socket.c:1995 __do_sys_sendto net/socket.c:2007 [inline] __se_sys_sendto net/socket.c:2003 [inline] __x64_sys_sendto+0xdd/0x1b0 net/socket.c:2003 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 } ... key at: [] macsec_netdev_addr_lock_key+0x0/0x40 ... acquired at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:353 [inline] peernet2id_alloc+0xd0/0x430 net/core/net_namespace.c:254 rtnl_fill_link_netnsid net/core/rtnetlink.c:1572 [inline] rtnl_fill_ifinfo+0x1c10/0x3c40 net/core/rtnetlink.c:1758 rtmsg_ifinfo_build_skb+0xcd/0x1a0 net/core/rtnetlink.c:3706 rtmsg_ifinfo_event net/core/rtnetlink.c:3738 [inline] rtmsg_ifinfo_event net/core/rtnetlink.c:3729 [inline] rtmsg_ifinfo+0x83/0x120 net/core/rtnetlink.c:3747 __dev_notify_flags+0x226/0x2b0 net/core/dev.c:8312 __dev_set_promiscuity+0x197/0x210 net/core/dev.c:8088 dev_set_promiscuity+0x4f/0x100 net/core/dev.c:8108 macsec_dev_change_rx_flags+0x13b/0x170 drivers/net/macsec.c:3582 dev_change_rx_flags net/core/dev.c:8041 [inline] __dev_set_promiscuity.cold+0x2f1/0x35f net/core/dev.c:8085 __dev_set_rx_mode+0x21f/0x300 net/core/dev.c:8190 dev_uc_add+0xa1/0xb0 net/core/dev_addr_lists.c:592 macvlan_open+0x541/0x8b0 drivers/net/macvlan.c:631 __dev_open+0x231/0x3d0 net/core/dev.c:1515 __dev_change_flags+0x505/0x660 net/core/dev.c:8278 rtnl_configure_link+0xee/0x230 net/core/rtnetlink.c:3021 __rtnl_newlink+0x10bb/0x1750 net/core/rtnetlink.c:3358 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2352 ___sys_sendmsg+0xf3/0x170 net/socket.c:2406 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock: -> (&net->nsid_lock){+.+.}-{2:2} { HARDIRQ-ON-W at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:353 [inline] peernet2id_alloc+0xd0/0x430 net/core/net_namespace.c:254 dev_change_net_namespace+0x2ef/0x1200 net/core/dev.c:10213 do_setlink+0x197/0x35c0 net/core/rtnetlink.c:2509 __rtnl_newlink+0xc21/0x1750 net/core/rtnetlink.c:3272 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2352 ___sys_sendmsg+0xf3/0x170 net/socket.c:2406 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 SOFTIRQ-ON-W at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:353 [inline] peernet2id_alloc+0xd0/0x430 net/core/net_namespace.c:254 dev_change_net_namespace+0x2ef/0x1200 net/core/dev.c:10213 do_setlink+0x197/0x35c0 net/core/rtnetlink.c:2509 __rtnl_newlink+0xc21/0x1750 net/core/rtnetlink.c:3272 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2352 ___sys_sendmsg+0xf3/0x170 net/socket.c:2406 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 INITIAL USE at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:353 [inline] peernet2id_alloc+0xd0/0x430 net/core/net_namespace.c:254 dev_change_net_namespace+0x2ef/0x1200 net/core/dev.c:10213 do_setlink+0x197/0x35c0 net/core/rtnetlink.c:2509 __rtnl_newlink+0xc21/0x1750 net/core/rtnetlink.c:3272 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2352 ___sys_sendmsg+0xf3/0x170 net/socket.c:2406 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 } ... key at: [] __key.15+0x0/0x40 ... acquired at: lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:353 [inline] peernet2id_alloc+0xd0/0x430 net/core/net_namespace.c:254 rtnl_fill_link_netnsid net/core/rtnetlink.c:1572 [inline] rtnl_fill_ifinfo+0x1c10/0x3c40 net/core/rtnetlink.c:1758 rtmsg_ifinfo_build_skb+0xcd/0x1a0 net/core/rtnetlink.c:3706 rtmsg_ifinfo_event net/core/rtnetlink.c:3738 [inline] rtmsg_ifinfo_event net/core/rtnetlink.c:3729 [inline] rtmsg_ifinfo+0x83/0x120 net/core/rtnetlink.c:3747 __dev_notify_flags+0x226/0x2b0 net/core/dev.c:8312 __dev_set_promiscuity+0x197/0x210 net/core/dev.c:8088 dev_set_promiscuity+0x4f/0x100 net/core/dev.c:8108 macsec_dev_change_rx_flags+0x13b/0x170 drivers/net/macsec.c:3582 dev_change_rx_flags net/core/dev.c:8041 [inline] __dev_set_promiscuity.cold+0x2f1/0x35f net/core/dev.c:8085 __dev_set_rx_mode+0x21f/0x300 net/core/dev.c:8190 dev_uc_add+0xa1/0xb0 net/core/dev_addr_lists.c:592 macvlan_open+0x541/0x8b0 drivers/net/macvlan.c:631 __dev_open+0x231/0x3d0 net/core/dev.c:1515 __dev_change_flags+0x505/0x660 net/core/dev.c:8278 rtnl_configure_link+0xee/0x230 net/core/rtnetlink.c:3021 __rtnl_newlink+0x10bb/0x1750 net/core/rtnetlink.c:3358 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2352 ___sys_sendmsg+0xf3/0x170 net/socket.c:2406 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 stack backtrace: CPU: 0 PID: 23615 Comm: syz-executor.1 Not tainted 5.8.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 print_bad_irq_dependency kernel/locking/lockdep.c:2113 [inline] check_irq_usage.cold+0x50f/0x615 kernel/locking/lockdep.c:2311 check_prev_add kernel/locking/lockdep.c:2500 [inline] check_prevs_add kernel/locking/lockdep.c:2601 [inline] validate_chain kernel/locking/lockdep.c:3218 [inline] __lock_acquire+0x2ae1/0x56e0 kernel/locking/lockdep.c:4380 lock_acquire+0x1f1/0xad0 kernel/locking/lockdep.c:4959 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:353 [inline] peernet2id_alloc+0xd0/0x430 net/core/net_namespace.c:254 rtnl_fill_link_netnsid net/core/rtnetlink.c:1572 [inline] rtnl_fill_ifinfo+0x1c10/0x3c40 net/core/rtnetlink.c:1758 rtmsg_ifinfo_build_skb+0xcd/0x1a0 net/core/rtnetlink.c:3706 rtmsg_ifinfo_event net/core/rtnetlink.c:3738 [inline] rtmsg_ifinfo_event net/core/rtnetlink.c:3729 [inline] rtmsg_ifinfo+0x83/0x120 net/core/rtnetlink.c:3747 __dev_notify_flags+0x226/0x2b0 net/core/dev.c:8312 __dev_set_promiscuity+0x197/0x210 net/core/dev.c:8088 dev_set_promiscuity+0x4f/0x100 net/core/dev.c:8108 macsec_dev_change_rx_flags+0x13b/0x170 drivers/net/macsec.c:3582 dev_change_rx_flags net/core/dev.c:8041 [inline] __dev_set_promiscuity.cold+0x2f1/0x35f net/core/dev.c:8085 __dev_set_rx_mode+0x21f/0x300 net/core/dev.c:8190 dev_uc_add+0xa1/0xb0 net/core/dev_addr_lists.c:592 macvlan_open+0x541/0x8b0 drivers/net/macvlan.c:631 __dev_open+0x231/0x3d0 net/core/dev.c:1515 __dev_change_flags+0x505/0x660 net/core/dev.c:8278 rtnl_configure_link+0xee/0x230 net/core/rtnetlink.c:3021 __rtnl_newlink+0x10bb/0x1750 net/core/rtnetlink.c:3358 rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3398 rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5461 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2469 netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1329 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1918 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2352 ___sys_sendmsg+0xf3/0x170 net/socket.c:2406 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2439 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45ccd9 Code: 2d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fab6c5dec78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000002c080 RCX: 000000000045ccd9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000003 RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000078bf0c R13: 00007fff4ce8a2ff R14: 00007fab6c5df9c0 R15: 000000000078bf0c