[ 89.388266][ T23] audit: type=1800 audit(1579548277.541:26): pid=9659 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 90.417062][ T23] kauditd_printk_skb: 2 callbacks suppressed [ 90.417073][ T23] audit: type=1800 audit(1579548278.581:29): pid=9659 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 90.444346][ T23] audit: type=1800 audit(1579548278.591:30): pid=9659 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.19' (ECDSA) to the list of known hosts. syzkaller login: [ 99.894089][ T9815] IPVS: ftp: loaded support on port[0] = 21 [ 99.895175][ T9821] IPVS: ftp: loaded support on port[0] = 21 [ 99.900505][ T9818] IPVS: ftp: loaded support on port[0] = 21 [ 99.914038][ T9822] IPVS: ftp: loaded support on port[0] = 21 [ 99.929257][ T9823] IPVS: ftp: loaded support on port[0] = 21 [ 99.939260][ T9820] IPVS: ftp: loaded support on port[0] = 21 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 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 [ 100.403441][ T9921] list_del corruption, ffff8880a4498c00->prev is LIST_POISON2 (dead000000000122) [ 100.423778][ T9921] ------------[ cut here ]------------ [ 100.429301][ T9921] kernel BUG at lib/list_debug.c:48! [ 100.436128][ T9921] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 100.442223][ T9921] CPU: 0 PID: 9921 Comm: syz-executor235 Not tainted 5.5.0-rc7-syzkaller #0 [ 100.451042][ T9921] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 100.461104][ T9921] RIP: 0010:__list_del_entry_valid.cold+0x37/0x4f [ 100.467504][ T9921] Code: be fd 0f 0b 4c 89 ea 4c 89 f6 48 c7 c7 60 69 71 88 e8 00 df be fd 0f 0b 4c 89 e2 4c 89 f6 48 c7 c7 c0 69 71 88 e8 ec de be fd <0f> 0b 4c 89 f6 48 c7 c7 80 6a 71 88 e8 db de be fd 0f 0b cc cc cc [ 100.487480][ T9921] RSP: 0018:ffffc90002287478 EFLAGS: 00010282 [ 100.493637][ T9921] RAX: 000000000000004e RBX: ffff8880a4498c00 RCX: 0000000000000000 [ 100.501604][ T9921] RDX: 0000000000000000 RSI: ffffffff815e5326 RDI: fffff52000450e81 [ 100.509794][ T9921] RBP: ffffc90002287490 R08: 000000000000004e R09: ffffed1015d26621 [ 100.517758][ T9921] R10: ffffed1015d26620 R11: ffff8880ae933107 R12: dead000000000122 [ 100.525864][ T9921] R13: ffff888095605330 R14: ffff8880a4498c00 R15: ffff88809a1f3680 [ 100.533831][ T9921] FS: 00007ffa042c7700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 100.542843][ T9921] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 100.549421][ T9921] CR2: 00007f5ba5dc1320 CR3: 0000000092d4a000 CR4: 00000000001406f0 [ 100.557385][ T9921] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 100.566383][ T9921] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 100.574432][ T9921] Call Trace: [ 100.577732][ T9921] __nf_tables_abort+0x1e53/0x2a50 [ 100.582872][ T9921] nf_tables_abort+0x17/0x30 [ 100.587551][ T9921] nfnetlink_rcv_batch+0xa5d/0x17a0 [ 100.592764][ T9921] ? nf_tables_fill_flowtable_info.isra.0+0x1a1/0xaf0 [ 100.599530][ T9921] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 100.605442][ T9921] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.611678][ T9921] ? apparmor_capable+0x497/0x900 [ 100.616716][ T9921] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.622947][ T9921] ? __nla_validate_parse+0x2d0/0x1ee0 [ 100.628534][ T9921] ? cap_capable+0x205/0x270 [ 100.633123][ T9921] ? nla_memcpy+0xb0/0xb0 [ 100.637792][ T9921] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.644092][ T9921] ? ns_capable_common+0x93/0x100 [ 100.649114][ T9921] ? __nla_parse+0x43/0x60 [ 100.654006][ T9921] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 100.659770][ T9921] nfnetlink_rcv+0x3e7/0x460 [ 100.664771][ T9921] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 100.670231][ T9921] ? netlink_deliver_tap+0x24a/0xbe0 [ 100.675525][ T9921] ? __kasan_check_write+0x14/0x20 [ 100.680679][ T9921] netlink_unicast+0x58c/0x7d0 [ 100.685659][ T9921] ? netlink_attachskb+0x870/0x870 [ 100.690823][ T9921] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 100.696637][ T9921] ? __check_object_size+0x3d/0x437 [ 100.702081][ T9921] netlink_sendmsg+0x91c/0xea0 [ 100.706926][ T9921] ? netlink_unicast+0x7d0/0x7d0 [ 100.711976][ T9921] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 100.717591][ T9921] ? apparmor_socket_sendmsg+0x2a/0x30 [ 100.723138][ T9921] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.729510][ T9921] ? security_socket_sendmsg+0x8d/0xc0 [ 100.735073][ T9921] ? netlink_unicast+0x7d0/0x7d0 [ 100.740208][ T9921] sock_sendmsg+0xd7/0x130 [ 100.744628][ T9921] ____sys_sendmsg+0x753/0x880 [ 100.749609][ T9921] ? kernel_sendmsg+0x50/0x50 [ 100.754279][ T9921] ? __fget+0x35d/0x550 [ 100.758606][ T9921] ? find_held_lock+0x35/0x130 [ 100.763412][ T9921] ___sys_sendmsg+0x100/0x170 [ 100.768099][ T9921] ? sendmsg_copy_msghdr+0x70/0x70 [ 100.773215][ T9921] ? __kasan_check_read+0x11/0x20 [ 100.778238][ T9921] ? ksys_dup3+0x3e0/0x3e0 [ 100.782663][ T9921] ? __fget_light+0x1a9/0x230 [ 100.787327][ T9921] ? __fdget+0x1b/0x20 [ 100.791400][ T9921] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 100.797806][ T9921] __sys_sendmsg+0x105/0x1d0 [ 100.802465][ T9921] ? __sys_sendmsg_sock+0xc0/0xc0 [ 100.807712][ T9921] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 100.813688][ T9921] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 100.819133][ T9921] ? do_syscall_64+0x26/0x790 [ 100.823865][ T9921] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.829929][ T9921] ? do_syscall_64+0x26/0x790 [ 100.834729][ T9921] __x64_sys_sendmsg+0x78/0xb0 [ 100.839489][ T9921] do_syscall_64+0xfa/0x790 [ 100.843990][ T9921] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.850008][ T9921] RIP: 0033:0x446d79 [ 100.853902][ T9921] Code: e8 8c e7 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 0f 83 fb 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 100.873620][ T9921] RSP: 002b:00007ffa042c6d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 100.882266][ T9921] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446d79 [ 100.890251][ T9921] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004 executing program [ 100.898444][ T9921] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 100.906424][ T9921] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 100.914407][ T9921] R13: 000000200a000000 R14: 0000000000006c00 R15: 0000001000000014 [ 100.922652][ T9921] Modules linked in: [ 100.927409][ T9921] ---[ end trace dbbcc748ac60d362 ]--- [ 100.932997][ T9921] RIP: 0010:__list_del_entry_valid.cold+0x37/0x4f executing program executing program [ 100.939850][ T9921] Code: be fd 0f 0b 4c 89 ea 4c 89 f6 48 c7 c7 60 69 71 88 e8 00 df be fd 0f 0b 4c 89 e2 4c 89 f6 48 c7 c7 c0 69 71 88 e8 ec de be fd <0f> 0b 4c 89 f6 48 c7 c7 80 6a 71 88 e8 db de be fd 0f 0b cc cc cc [ 100.961869][ T9921] RSP: 0018:ffffc90002287478 EFLAGS: 00010282 [ 100.968286][ T9921] RAX: 000000000000004e RBX: ffff8880a4498c00 RCX: 0000000000000000 [ 100.976287][ T9921] RDX: 0000000000000000 RSI: ffffffff815e5326 RDI: fffff52000450e81 [ 100.984361][ T9921] RBP: ffffc90002287490 R08: 000000000000004e R09: ffffed1015d26621 [ 100.992436][ T9921] R10: ffffed1015d26620 R11: ffff8880ae933107 R12: dead000000000122 executing program executing program executing program executing program executing program [ 101.000642][ T9921] R13: ffff888095605330 R14: ffff8880a4498c00 R15: ffff88809a1f3680 [ 101.008675][ T9921] FS: 00007ffa042c7700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 101.018135][ T9921] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 101.024933][ T9921] CR2: 00007ffa042a5e78 CR3: 0000000092d4a000 CR4: 00000000001406f0 [ 101.033153][ T9921] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 101.041269][ T9921] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 101.049697][ T9921] Kernel panic - not syncing: Fatal exception [ 101.057487][ T9921] Kernel Offset: disabled [ 101.062057][ T9921] Rebooting in 86400 seconds..