[ 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 '10.128.0.203' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 41.655004] list_del corruption, ffff8880b2defa90->next is LIST_POISON1 (dead000000000100) [ 41.663887] ------------[ cut here ]------------ [ 41.668726] kernel BUG at lib/list_debug.c:45! [ 41.673427] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 41.678872] CPU: 1 PID: 8084 Comm: syz-executor243 Not tainted 4.19.211-syzkaller #0 [ 41.686740] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 41.696115] RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a [ 41.701812] 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 [ 41.720771] RSP: 0018:ffff8880b2def970 EFLAGS: 00010086 [ 41.727226] RAX: 000000000000004e RBX: ffff8880b2defa78 RCX: 0000000000000000 [ 41.734508] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10165bdf20 [ 41.741757] RBP: ffff8880b2defa90 R08: 000000000000004e R09: 0000000000000000 [ 41.749008] R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 [ 41.756260] R13: dead000000000100 R14: ffff8880b2defa98 R15: 0000000000000007 [ 41.763517] FS: 00005555555b6300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 41.771825] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.777691] CR2: 0000000020200000 CR3: 00000000a90d8000 CR4: 00000000003406e0 [ 41.784943] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.792196] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.799445] Call Trace: [ 41.802114] remove_wait_queue+0x2c/0x180 [ 41.806243] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.810881] __tipc_sendstream+0x373/0x9d0 [ 41.815135] ? tipc_sendmsg+0x70/0x70 [ 41.818932] ? do_wait_intr_irq+0x270/0x270 [ 41.823241] ? __local_bh_enable_ip+0x159/0x270 [ 41.827897] tipc_sendstream+0x4c/0x70 [ 41.831772] ? __tipc_sendstream+0x9d0/0x9d0 [ 41.836163] sock_sendmsg+0xc3/0x120 [ 41.839857] sock_write_iter+0x287/0x3c0 [ 41.843899] ? sock_sendmsg+0x120/0x120 [ 41.847855] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 41.852421] ? tipc_connect+0x17e/0x690 [ 41.856479] ? __local_bh_enable_ip+0x159/0x270 [ 41.861130] ? tipc_connect+0x183/0x690 [ 41.865090] __vfs_write+0x51b/0x770 [ 41.868784] ? kernel_read+0x110/0x110 [ 41.872658] ? security_file_permission+0x1c0/0x220 [ 41.877691] vfs_write+0x1f3/0x540 [ 41.881213] ksys_write+0x12b/0x2a0 [ 41.884820] ? __ia32_sys_read+0xb0/0xb0 [ 41.888896] ? trace_hardirqs_off_caller+0x6e/0x210 [ 41.893898] ? do_syscall_64+0x21/0x620 [ 41.897853] do_syscall_64+0xf9/0x620 [ 41.901636] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.906803] RIP: 0033:0x7f185c0d2d59 [ 41.910586] 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 [ 41.929578] RSP: 002b:00007fffbf08ce28 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 41.937277] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f185c0d2d59 [ 41.944533] RDX: 000000002000011a RSI: 0000000020000080 RDI: 0000000000000003 [ 41.951788] RBP: 0000000000000000 R08: 00007fffbf08cfc8 R09: 00007fffbf08cfc8 [ 41.959038] R10: 00007fffbf08cfc8 R11: 0000000000000246 R12: 00007f185c0965e0 [ 41.966312] R13: 431bde82d7b634db R14: 0000000000000000 R15: 0000000000000000 [ 41.973562] Modules linked in: [ 41.976741] ---[ end trace 55ce27a22e3e3a40 ]--- [ 41.981483] RIP: 0010:__list_del_entry_valid.cold+0x23/0x4a [ 41.987173] 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 [ 42.006055] RSP: 0018:ffff8880b2def970 EFLAGS: 00010086 [ 42.011402] RAX: 000000000000004e RBX: ffff8880b2defa78 RCX: 0000000000000000 [ 42.018653] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed10165bdf20 [ 42.025927] RBP: ffff8880b2defa90 R08: 000000000000004e R09: 0000000000000000 [ 42.033175] R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 [ 42.040625] R13: dead000000000100 R14: ffff8880b2defa98 R15: 0000000000000007 [ 42.047891] FS: 00005555555b6300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 42.056109] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.061973] CR2: 0000000020200000 CR3: 00000000a90d8000 CR4: 00000000003406e0 [ 42.069251] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 42.076505] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 42.083760] Kernel panic - not syncing: Fatal exception [ 42.089272] Kernel Offset: disabled [ 42.092883] Rebooting in 86400 seconds..