IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 8021q: adding VLAN 0 to HW filter on device team0 ================================================================== BUG: KASAN: slab-out-of-bounds in __hlist_del include/linux/list.h:704 [inline] BUG: KASAN: slab-out-of-bounds in hlist_del_init include/linux/list.h:717 [inline] BUG: KASAN: slab-out-of-bounds in __xfrm_policy_unlink+0x9c1/0xa20 net/xfrm/xfrm_policy.c:2216 Write of size 8 at addr ffff8881ce77c3b0 by task kworker/u4:8/13908 CPU: 1 PID: 13908 Comm: kworker/u4:8 Not tainted 4.20.0-rc6+ #353 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: netns cleanup_net Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 print_address_description.cold.7+0x9/0x1ff mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.8+0x242/0x309 mm/kasan/report.c:412 __asan_report_store8_noabort+0x17/0x20 mm/kasan/report.c:438 __hlist_del include/linux/list.h:704 [inline] hlist_del_init include/linux/list.h:717 [inline] __xfrm_policy_unlink+0x9c1/0xa20 net/xfrm/xfrm_policy.c:2216 xfrm_policy_flush+0x344/0x480 net/xfrm/xfrm_policy.c:1789 xfrm_policy_fini+0xd4/0x650 net/xfrm/xfrm_policy.c:3866 xfrm_net_exit+0x1d/0x70 net/xfrm/xfrm_policy.c:3928 ops_exit_list.isra.5+0xb0/0x160 net/core/net_namespace.c:153 cleanup_net+0x555/0xb10 net/core/net_namespace.c:551 process_one_work+0xc90/0x1c40 kernel/workqueue.c:2153 worker_thread+0x17f/0x1390 kernel/workqueue.c:2296 kthread+0x35a/0x440 kernel/kthread.c:246 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:352 Allocated by task 31094: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc7/0xe0 mm/kasan/kasan.c:553 __do_kmalloc_node mm/slab.c:3684 [inline] __kmalloc_node+0x50/0x70 mm/slab.c:3691 kmalloc_node include/linux/slab.h:589 [inline] kvmalloc_node+0x65/0xf0 mm/util.c:416 kvmalloc include/linux/mm.h:577 [inline] kvzalloc include/linux/mm.h:585 [inline] bucket_table_alloc+0x9a/0x4f0 lib/rhashtable.c:176 rhashtable_init+0x530/0xa80 lib/rhashtable.c:1065 br_fdb_hash_init+0x20/0x30 net/bridge/br_fdb.c:64 br_dev_init+0xec/0x320 net/bridge/br_device.c:128 register_netdevice+0x332/0x11a0 net/core/dev.c:8559 register_netdev+0x30/0x50 net/core/dev.c:8744 ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2 br_add_bridge+0x9b/0xf0 net/bridge/br_if.c:460 br_ioctl_deviceless_stub+0x991/0xac0 net/bridge/br_ioctl.c:378 sock_ioctl+0x2d5/0x690 net/socket.c:1041 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:509 [inline] do_vfs_ioctl+0x1de/0x1790 fs/ioctl.c:696 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:713 __do_sys_ioctl fs/ioctl.c:720 [inline] __se_sys_ioctl fs/ioctl.c:718 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:718 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe Freed by task 15700: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x102/0x150 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kfree+0xcf/0x230 mm/slab.c:3817 skb_free_head+0x99/0xc0 net/core/skbuff.c:550 skb_release_data+0x70c/0x9a0 net/core/skbuff.c:570 skb_release_all+0x4a/0x60 net/core/skbuff.c:627 __kfree_skb net/core/skbuff.c:641 [inline] consume_skb+0x1ae/0x570 net/core/skbuff.c:701 netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline] netlink_unicast+0x5ad/0x760 net/netlink/af_netlink.c:1336 netlink_sendmsg+0xa18/0xfc0 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2116 __sys_sendmsg+0x11d/0x280 net/socket.c:2154 __do_sys_sendmsg net/socket.c:2163 [inline] __se_sys_sendmsg net/socket.c:2161 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2161 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe The buggy address belongs to the object at ffff8881ce77c000 which belongs to the cache kmalloc-1k of size 1024 The buggy address is located 944 bytes inside of 1024-byte region [ffff8881ce77c000, ffff8881ce77c400) The buggy address belongs to the page: page:ffffea000739df00 count:1 mapcount:0 mapping:ffff8881da800ac0 index:0xffff8881ce77d680 compound_mapcount: 0 ip_tunnel: non-ECT from 172.20.255.187 with TOS=0x2 flags: 0x2fffc0000010200(slab|head) raw: 02fffc0000010200 ffffea00064ffa88 ffffea00065fd508 ffff8881da800ac0 raw: ffff8881ce77d680 ffff8881ce77c000 0000000100000006 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8881ce77c280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881ce77c300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8881ce77c380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ^ ffff8881ce77c400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8881ce77c480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb kobject: 'loop4' (00000000d66698d4): kobject_uevent_env ==================================================================