list_del corruption, ffff8880a85d7878->next is LIST_POISON1 (dead000000000100) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:45! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10237 Comm: syz-executor162 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45 Code: e8 11 43 f7 ff 0f 0b 48 89 ee 48 c7 c7 40 e4 b3 88 e8 00 43 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 80 e3 b3 88 e8 ec 42 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 e0 e3 b3 88 e8 d8 42 f7 ff 0f 0b RSP: 0018:ffff8880a85d7750 EFLAGS: 00010086 RAX: 000000000000004e RBX: ffff8880a85d7860 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10150baedc RBP: ffff8880a85d7878 R08: 000000000000004e R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 R13: dead000000000100 R14: ffff8880a85d7880 R15: 0000000000000007 FS: 00007f8a901cd700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8a90270cd8 CR3: 00000000a8554000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:117 [inline] list_del include/linux/list.h:125 [inline] __remove_wait_queue include/linux/wait.h:184 [inline] remove_wait_queue+0x2c/0x180 kernel/sched/wait.c:44 tipc_send_group_bcast+0x317/0xa10 net/tipc/socket.c:1022 __tipc_sendmsg+0xa2b/0x1320 net/tipc/socket.c:1314 tipc_sendmsg+0x4c/0x70 net/tipc/socket.c:1279 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227 __sys_sendmsg net/socket.c:2265 [inline] __do_sys_sendmsg net/socket.c:2274 [inline] __se_sys_sendmsg net/socket.c:2272 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8a9021bab9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8a901cd318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f8a902a3408 RCX: 00007f8a9021bab9 RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000004 RBP: 00007f8a902a3400 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8a90271074 R13: 00007fff4bc7458f R14: 00007f8a901cd400 R15: 0000000000022000 Modules linked in: ---[ end trace 65a70ef4be7a7446 ]--- RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a lib/list_debug.c:45 Code: e8 11 43 f7 ff 0f 0b 48 89 ee 48 c7 c7 40 e4 b3 88 e8 00 43 f7 ff 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 80 e3 b3 88 e8 ec 42 f7 ff <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 e0 e3 b3 88 e8 d8 42 f7 ff 0f 0b RSP: 0018:ffff8880a85d7750 EFLAGS: 00010086 RAX: 000000000000004e RBX: ffff8880a85d7860 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10150baedc RBP: ffff8880a85d7878 R08: 000000000000004e R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 R13: dead000000000100 R14: ffff8880a85d7880 R15: 0000000000000007 FS: 00007f8a901cd700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8a90270cd8 CR3: 00000000a8554000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400