Warning: Permanently added '10.128.1.60' (ECDSA) to the list of known hosts. syzkaller login: [ 34.666272] hrtimer: interrupt took 24685 ns [ 34.912816] list_del corruption, ffff88809576f738->next is LIST_POISON1 (dead000000000100) [ 34.921670] ------------[ cut here ]------------ [ 34.926426] kernel BUG at lib/list_debug.c:45! [ 34.931011] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 34.936371] CPU: 0 PID: 8080 Comm: syz-executor129 Not tainted 4.19.211-syzkaller #0 [ 34.944243] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.953609] RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a [ 34.959315] 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 [ 34.978203] RSP: 0018:ffff88809576f610 EFLAGS: 00010086 [ 34.983543] RAX: 000000000000004e RBX: ffff88809576f720 RCX: 0000000000000000 [ 34.990789] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012aedeb4 [ 34.998037] RBP: ffff88809576f738 R08: 000000000000004e R09: 0000000000000000 [ 35.005283] R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 [ 35.012530] R13: dead000000000100 R14: ffff88809576f740 R15: 0000000000000007 [ 35.019778] FS: 00007fcbabed4700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 35.028004] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.033864] CR2: 00007fcbabf77dd8 CR3: 00000000a8e83000 CR4: 00000000003406f0 [ 35.041111] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.048355] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.055601] Call Trace: [ 35.058175] remove_wait_queue+0x2c/0x180 [ 35.062302] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.066880] tipc_send_group_bcast+0x317/0xa10 [ 35.071455] ? tipc_shutdown+0x310/0x310 [ 35.075491] ? __lock_acquire+0x6de/0x3ff0 [ 35.079702] ? do_wait_intr_irq+0x270/0x270 [ 35.084002] ? __lock_acquire+0x6de/0x3ff0 [ 35.088217] __tipc_sendmsg+0xa2b/0x1320 [ 35.092257] ? lockdep_hardirqs_on+0x288/0x5c0 [ 35.096816] ? tipc_sendmcast+0xba0/0xba0 [ 35.100941] ? mark_held_locks+0xa6/0xf0 [ 35.104981] ? rcu_nmi_exit+0xb3/0x180 [ 35.108846] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.113410] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.118151] ? rcu_nmi_exit+0xb3/0x180 [ 35.122020] ? retint_kernel+0x2d/0x2d [ 35.125902] tipc_sendmsg+0x4c/0x70 [ 35.129509] ? __tipc_sendmsg+0x1320/0x1320 [ 35.133810] sock_sendmsg+0xc3/0x120 [ 35.137511] ___sys_sendmsg+0x3b3/0x8e0 [ 35.141464] ? lock_downgrade+0x720/0x720 [ 35.145589] ? copy_msghdr_from_user+0x440/0x440 [ 35.150320] ? __fget+0x32f/0x510 [ 35.153755] ? lock_downgrade+0x720/0x720 [ 35.157893] ? check_preemption_disabled+0x41/0x280 [ 35.162890] ? check_preemption_disabled+0x41/0x280 [ 35.167884] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.172616] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.177191] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 35.181923] ? rcu_nmi_exit+0xb3/0x180 [ 35.185788] ? retint_kernel+0x2d/0x2d [ 35.189661] __sys_sendmmsg+0x195/0x470 [ 35.193627] ? __ia32_sys_sendmsg+0x220/0x220 [ 35.198096] ? __schedule+0x88f/0x2040 [ 35.201961] ? ___preempt_schedule+0x16/0x18 [ 35.206347] ? blkcg_maybe_throttle_current+0x56c/0xc10 [ 35.211699] ? __se_sys_futex+0x28f/0x3b0 [ 35.215837] ? __se_sys_futex+0x298/0x3b0 [ 35.219983] ? do_futex+0x1880/0x1880 [ 35.223766] ? task_work_run+0x126/0x1c0 [ 35.227806] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 35.233161] __x64_sys_sendmmsg+0x99/0x100 [ 35.237374] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.241930] do_syscall_64+0xf9/0x620 [ 35.245708] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.250876] RIP: 0033:0x7fcbabf22bf9 [ 35.254580] 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 [ 35.273476] RSP: 002b:00007fcbabed4318 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 35.281169] RAX: ffffffffffffffda RBX: 00007fcbabfaa408 RCX: 00007fcbabf22bf9 [ 35.288423] RDX: 0000000000000001 RSI: 00000000200030c0 RDI: 0000000000000004 [ 35.295677] RBP: 00007fcbabfaa400 R08: 0000000000000000 R09: 0000000000000000 [ 35.302925] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fcbabf78064 [ 35.310173] R13: 00007ffcd26287df R14: 00007fcbabed4400 R15: 0000000000022000 [ 35.317420] Modules linked in: [ 35.320598] ---[ end trace 884beeb5f059df05 ]--- [ 35.325346] RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a [ 35.331048] 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 [ 35.349934] RSP: 0018:ffff88809576f610 EFLAGS: 00010086 [ 35.355274] RAX: 000000000000004e RBX: ffff88809576f720 RCX: 0000000000000000 [ 35.362531] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1012aedeb4 [ 35.369788] RBP: ffff88809576f738 R08: 000000000000004e R09: 0000000000000000 [ 35.377037] R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 [ 35.384286] R13: dead000000000100 R14: ffff88809576f740 R15: 0000000000000007 [ 35.391535] FS: 00007fcbabed4700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 35.399737] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.405623] CR2: 00007fcbabf77dd8 CR3: 00000000a8e83000 CR4: 00000000003406f0 [ 35.412880] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.420130] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.427378] Kernel panic - not syncing: Fatal exception [ 35.432884] Kernel Offset: disabled [ 35.436493] Rebooting in 86400 seconds..