[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.34' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 36.505771] list_del corruption, ffff8880b015f878->next is LIST_POISON1 (dead000000000100) [ 36.514828] ------------[ cut here ]------------ [ 36.519579] kernel BUG at lib/list_debug.c:45! [ 36.524160] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 36.529519] CPU: 1 PID: 8150 Comm: syz-executor555 Not tainted 4.19.211-syzkaller #0 [ 36.537396] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.546744] RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a [ 36.552453] 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 [ 36.571348] RSP: 0018:ffff8880b015f750 EFLAGS: 00010086 [ 36.576691] RAX: 000000000000004e RBX: ffff8880b015f860 RCX: 0000000000000000 [ 36.583949] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed101602bedc [ 36.591205] RBP: ffff8880b015f878 R08: 000000000000004e R09: 0000000000000000 [ 36.598560] R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 [ 36.605811] R13: dead000000000100 R14: ffff8880b015f880 R15: 0000000000000007 [ 36.613088] FS: 00005555559f6300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 36.621318] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.627200] CR2: 00007fc3e3d91130 CR3: 00000000ab4d4000 CR4: 00000000003406e0 [ 36.634453] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.641704] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.648963] Call Trace: [ 36.651535] remove_wait_queue+0x2c/0x180 [ 36.655682] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.660245] tipc_send_group_bcast+0x317/0xa10 [ 36.664808] ? tipc_shutdown+0x310/0x310 [ 36.668868] ? __lock_acquire+0x6de/0x3ff0 [ 36.673081] ? do_wait_intr_irq+0x270/0x270 [ 36.677387] ? __lock_acquire+0x6de/0x3ff0 [ 36.681602] __tipc_sendmsg+0xa2b/0x1320 [ 36.685644] ? mark_held_locks+0xf0/0xf0 [ 36.689700] ? rw_copy_check_uvector+0x27c/0x340 [ 36.694439] ? tipc_sendmcast+0xba0/0xba0 [ 36.698570] ? lock_sock_nested+0xa6/0x110 [ 36.702809] ? mark_held_locks+0xa6/0xf0 [ 36.706869] ? __local_bh_enable_ip+0x159/0x270 [ 36.711523] tipc_sendmsg+0x4c/0x70 [ 36.715148] ? __tipc_sendmsg+0x1320/0x1320 [ 36.719451] sock_sendmsg+0xc3/0x120 [ 36.723147] ___sys_sendmsg+0x7bb/0x8e0 [ 36.727100] ? copy_msghdr_from_user+0x440/0x440 [ 36.731838] ? tipc_setsockopt+0x82d/0x9f0 [ 36.736050] ? lock_downgrade+0x720/0x720 [ 36.740176] ? __local_bh_enable_ip+0x159/0x270 [ 36.744839] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 36.749418] ? tipc_setsockopt+0x82d/0x9f0 [ 36.753645] ? __local_bh_enable_ip+0x159/0x270 [ 36.758307] ? tipc_setsockopt+0x50a/0x9f0 [ 36.762542] ? tipc_sk_withdraw+0x550/0x550 [ 36.766854] ? aa_af_perm+0x230/0x230 [ 36.770638] ? __fdget+0x1a0/0x230 [ 36.774161] __x64_sys_sendmsg+0x132/0x220 [ 36.778373] ? __sys_sendmsg+0x1b0/0x1b0 [ 36.782416] ? kernel_accept+0x310/0x310 [ 36.786460] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 36.791818] ? trace_hardirqs_off_caller+0x6e/0x210 [ 36.796812] ? do_syscall_64+0x21/0x620 [ 36.800763] do_syscall_64+0xf9/0x620 [ 36.804542] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 36.809708] RIP: 0033:0x7fc3e3d1ffe9 [ 36.813399] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 b1 14 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 c0 ff ff ff f7 d8 64 89 01 48 [ 36.832450] RSP: 002b:00007ffe09097678 EFLAGS: 00000206 ORIG_RAX: 000000000000002e [ 36.840148] RAX: ffffffffffffffda RBX: 0000000000008e64 RCX: 00007fc3e3d1ffe9 [ 36.847396] RDX: 0800000000000000 RSI: 00000000200002c0 RDI: 0000000000000004 [ 36.854646] RBP: 0000000000000000 R08: 00007ffe09097818 R09: 00007ffe09097818 [ 36.861898] R10: 0000000000000010 R11: 0000000000000206 R12: 00007ffe0909768c [ 36.869148] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 36.876401] Modules linked in: [ 36.879581] ---[ end trace 3c759a9789b9b58d ]--- [ 36.884332] RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a [ 36.890020] 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 [ 36.908897] RSP: 0018:ffff8880b015f750 EFLAGS: 00010086 [ 36.914236] RAX: 000000000000004e RBX: ffff8880b015f860 RCX: 0000000000000000 [ 36.921483] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed101602bedc [ 36.928732] RBP: ffff8880b015f878 R08: 000000000000004e R09: 0000000000000000 [ 36.935996] R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 [ 36.943243] R13: dead000000000100 R14: ffff8880b015f880 R15: 0000000000000007 [ 36.950493] FS: 00005555559f6300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 36.958696] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.964556] CR2: 00007fc3e3d91130 CR3: 00000000ab4d4000 CR4: 00000000003406e0 [ 36.971814] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.979070] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.986323] Kernel panic - not syncing: Fatal exception [ 36.991830] Kernel Offset: disabled [ 36.995440] Rebooting in 86400 seconds..