1FILE: net/tipc/name_table.c 2 3list_del corruption. prev->next should be 00000000bc6553ca, but was 0000000038fa8131 4------------[ cut here ]------------ 5kernel BUG at lib/list_debug.c:53! 6invalid opcode: 0000 [#1] SMP KASAN 7Dumping ftrace buffer: 8 (ftrace buffer empty) 9Modules linked in: 10CPU: 1 PID: 3200 Comm: syz-executor4 Not tainted 4.15.0-rc8+ #264 11Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 12RIP: 0010:__list_del_entry_valid+0xef/0x150 lib/list_debug.c:51 13RSP: 0018:ffff8801be95eb20 EFLAGS: 00010286 14RAX: 0000000000000054 RBX: ffff8801d359f240 RCX: 0000000000000000 15RDX: 0000000000000054 RSI: 1ffff10039af2dca RDI: ffffed0037d2bd58 16RBP: ffff8801be95eb38 R08: 1ffff10037d2bcfc R09: 0000000000000000 17R10: ffff8801be95ea00 R11: 0000000000000000 R12: ffff8801d50e4900 18R13: ffff8801be95ecd8 R14: ffff8801c29ac860 R15: ffff8801bd76aa80 19FS: 00007f70eee26700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 20CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 21CR2: 00000000010bad18 CR3: 0000000006822006 CR4: 00000000001606e0 22Call Trace: 23 __list_del_entry include/linux/list.h:117 [inline] 24 list_del_init include/linux/list.h:159 [inline] 25 tipc_nametbl_unsubscribe+0x318/0x990 net/tipc/name_table.c:851 26 tipc_subscrb_subscrp_delete+0x1e9/0x460 net/tipc/subscr.c:208 27 tipc_subscrb_delete net/tipc/subscr.c:238 [inline] 28 tipc_subscrb_release_cb+0x17/0x30 net/tipc/subscr.c:316 29 tipc_close_conn+0x171/0x270 net/tipc/server.c:204 30 tipc_topsrv_kern_unsubscr+0x213/0x340 net/tipc/server.c:532 31 tipc_group_delete+0x2c0/0x3d0 net/tipc/group.c:206 32 tipc_sk_leave+0x10b/0x200 net/tipc/socket.c:2780 33 tipc_release+0x154/0xfe0 net/tipc/socket.c:575 34 sock_release+0x8d/0x1e0 net/socket.c:602 35 sock_close+0x16/0x20 net/socket.c:1131 36 __fput+0x327/0x7e0 fs/file_table.c:210 37 ____fput+0x15/0x20 fs/file_table.c:244 38 task_work_run+0x199/0x270 kernel/task_work.c:113 39 exit_task_work include/linux/task_work.h:22 [inline] 40 do_exit+0x9bb/0x1ad0 kernel/exit.c:865 41 do_group_exit+0x149/0x400 kernel/exit.c:968 42 get_signal+0x73f/0x16c0 kernel/signal.c:2335 43 do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809 44 exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158 45 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] 46 syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264 47 entry_SYSCALL_64_fastpath+0x9e/0xa0 48RIP: 0033:0x452df9 49RSP: 002b:00007f70eee25c88 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca 50RAX: 0000000000000001 RBX: 000000000071bea0 RCX: 0000000000452df9 51RDX: 0000000000000000 RSI: 0000000000000001 RDI: 000000000071becc 52RBP: 0000000000000573 R08: 0000000000000000 R09: 0000000000000000 53R10: 0000000000000010 R11: 0000000000000246 R12: 0000000000000001 54R13: 0000000000000014 R14: 00007f70eee266d4 R15: ffffffffffffffff 55Code: 4c 89 e2 48 c7 c7 c0 fb e0 85 e8 95 26 fe fe 0f 0b 48 c7 c7 20 fc e0 85 e8 87 26 fe fe 0f 0b 48 c7 c7 80 fc e0 85 e8 79 26 fe fe <0f> 0b 48 c7 c7 e0 fc e0 85 e8 6b 26 fe fe 0f 0b 48 89 df 48 89 56RIP: __list_del_entry_valid+0xef/0x150 lib/list_debug.c:51 RSP: ffff8801be95eb20 57---[ end trace 0c495e0cee371de9 ]--- 58