bond0 (unregistering): (slave bond_slave_1): Releasing backup interface bond0 (unregistering): Released all slaves ------------[ cut here ]------------ WARNING: CPU: 0 PID: 636 at net/l2tp/l2tp_core.c:1881 l2tp_exit_net+0x170/0x178 net/l2tp/l2tp_core.c:1881 Modules linked in: CPU: 0 UID: 0 PID: 636 Comm: kworker/u8:9 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: netns cleanup_net pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : l2tp_exit_net+0x170/0x178 net/l2tp/l2tp_core.c:1881 lr : idr_is_empty include/linux/idr.h:162 [inline] lr : l2tp_exit_net+0x168/0x178 net/l2tp/l2tp_core.c:1881 sp : ffff80009ce879d0 x29: ffff80009ce879d0 x28: ffff80009ce87a60 x27: 00000000ffffffff x26: 1ffff00012525c20 x25: ffff80009292e0e0 x24: ffff800092728380 x23: ffff0000d38f8000 x22: dfff800000000000 x21: 0000000004000000 x20: ffff0000c25e1088 x19: ffff0000c25e1040 x18: ffff80009ce87380 x17: 000000000003878a x16: ffff800080585eb0 x15: 0000000000000001 x14: ffff80008f8205d8 x13: dfff800000000000 x12: 0000000072a7ed83 x11: 000000005a62e775 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c72d1e40 x7 : ffff80008a8fd8b8 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000002 Call trace: l2tp_exit_net+0x170/0x178 net/l2tp/l2tp_core.c:1881 (P) idr_is_empty include/linux/idr.h:162 [inline] (L) l2tp_exit_net+0x168/0x178 net/l2tp/l2tp_core.c:1881 (L) ops_exit_list net/core/net_namespace.c:173 [inline] cleanup_net+0x640/0x9b4 net/core/net_namespace.c:626 process_one_work+0x7bc/0x1600 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x97c/0xeec kernel/workqueue.c:3391 kthread+0x288/0x310 kernel/kthread.c:389 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:862 irq event stamp: 2772608 hardirqs last enabled at (2772607): [] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234 hardirqs last disabled at (2772608): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (2772600): [] l2tp_ip_exit_net+0xcc/0x134 net/l2tp/l2tp_ip.c:682 softirqs last disabled at (2772598): [] l2tp_ip_exit_net+0x3c/0x134 net/l2tp/l2tp_ip.c:679 ---[ end trace 0000000000000000 ]--- hsr_slave_0: left promiscuous mode hsr_slave_1: left promiscuous mode batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 veth1_macvtap: left promiscuous mode veth0_macvtap: left promiscuous mode veth1_vlan: left promiscuous mode veth0_vlan: left promiscuous mode team0 (unregistering): Port device team_slave_1 removed team0 (unregistering): Port device team_slave_0 removed