Failed to remove local publication {0,0,0}/206417777 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 IPVS: ftp: loaded support on port[0] = 21 ================================================================== BUG: KASAN: use-after-free in tipc_service_delete net/tipc/name_table.c:751 [inline] BUG: KASAN: use-after-free in tipc_nametbl_stop+0x94e/0xd70 net/tipc/name_table.c:780 Read of size 8 at addr ffff8801c4c25130 by task kworker/u4:2/30 CPU: 0 PID: 30 Comm: kworker/u4:2 Not tainted 4.16.0+ #1 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+0x1b9/0x294 lib/dump_stack.c:113 print_address_description+0x6c/0x20b mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412 __asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:433 tipc_service_delete net/tipc/name_table.c:751 [inline] tipc_nametbl_stop+0x94e/0xd70 net/tipc/name_table.c:780 tipc_exit_net+0x2d/0x40 net/tipc/core.c:103 ops_exit_list.isra.7+0xb0/0x160 net/core/net_namespace.c:152 cleanup_net+0x51d/0xb20 net/core/net_namespace.c:523 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:411 Allocated by task 4535: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553 kmem_cache_alloc_trace+0x152/0x780 mm/slab.c:3620 kmalloc include/linux/slab.h:512 [inline] kzalloc include/linux/slab.h:701 [inline] tipc_service_create_range net/tipc/name_table.c:183 [inline] tipc_service_insert_publ net/tipc/name_table.c:207 [inline] tipc_nametbl_insert_publ+0x569/0x1910 net/tipc/name_table.c:371 tipc_nametbl_publish+0x6c3/0xba0 net/tipc/name_table.c:618 tipc_sk_publish+0x22a/0x510 net/tipc/socket.c:2604 tipc_bind+0x206/0x330 net/tipc/socket.c:647 __sys_bind+0x331/0x440 net/socket.c:1484 SYSC_bind net/socket.c:1495 [inline] SyS_bind+0x24/0x30 net/socket.c:1493 do_syscall_64+0x29e/0x9d0 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x42/0xb7 Freed by task 30: save_stack+0x43/0xd0 mm/kasan/kasan.c:448 set_track mm/kasan/kasan.c:460 [inline] __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528 __cache_free mm/slab.c:3498 [inline] kfree+0xd9/0x260 mm/slab.c:3813 tipc_service_remove_publ.isra.8+0x909/0xc30 net/tipc/name_table.c:283 tipc_service_delete net/tipc/name_table.c:753 [inline] tipc_nametbl_stop+0x746/0xd70 net/tipc/name_table.c:780 tipc_exit_net+0x2d/0x40 net/tipc/core.c:103 ops_exit_list.isra.7+0xb0/0x160 net/core/net_namespace.c:152 cleanup_net+0x51d/0xb20 net/core/net_namespace.c:523 process_one_work+0xc1e/0x1b50 kernel/workqueue.c:2145 worker_thread+0x1cc/0x1440 kernel/workqueue.c:2279 kthread+0x345/0x410 kernel/kthread.c:238 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:411 The buggy address belongs to the object at ffff8801c4c25100 which belongs to the cache kmalloc-64 of size 64 The buggy address is located 48 bytes inside of 64-byte region [ffff8801c4c25100, ffff8801c4c25140) The buggy address belongs to the page: page:ffffea0007130940 count:1 mapcount:0 mapping:ffff8801c4c25000 index:0x0 flags: 0x2fffc0000000100(slab) raw: 02fffc0000000100 ffff8801c4c25000 0000000000000000 0000000100000020 raw: ffffea0006ccf860 ffffea00070840a0 ffff8801dac00340 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8801c4c25000: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8801c4c25080: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc >ffff8801c4c25100: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ^ ffff8801c4c25180: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ffff8801c4c25200: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc ==================================================================