[ 95.351650][ T27] audit: type=1800 audit(1579553123.379:26): pid=9598 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. [ 96.270060][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 96.270071][ T27] audit: type=1800 audit(1579553124.319:29): pid=9598 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 [ 96.297441][ T27] audit: type=1800 audit(1579553124.319:30): pid=9598 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 '10.128.0.226' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 113.604759][ T9761] netlink: 20 bytes leftover after parsing attributes in process `syz-executor140'. [ 113.621185][ T9767] netlink: 20 bytes leftover after parsing attributes in process `syz-executor140'. [ 113.631375][ T9770] netlink: 20 bytes leftover after parsing attributes in process `syz-executor140'. [ 113.644242][ T9768] netlink: 20 bytes leftover after parsing attributes in process `syz-executor140'. [ 113.708638][ T9771] netlink: 20 bytes leftover after parsing attributes in process `syz-executor140'. executing program executing program executing program executing program executing program executing program [ 114.148479][ T9784] netlink: 20 bytes leftover after parsing attributes in process `syz-executor140'. [ 114.158807][ T9798] netlink: 20 bytes leftover after parsing attributes in process `syz-executor140'. [ 114.172765][ T9786] netlink: 20 bytes leftover after parsing attributes in process `syz-executor140'. [ 114.193545][ T9784] list_del corruption, ffff88809456a800->prev is LIST_POISON2 (dead000000000122) [ 114.204381][ T9784] ------------[ cut here ]------------ [ 114.209866][ T9784] kernel BUG at lib/list_debug.c:48! [ 114.215246][ T9784] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 114.221368][ T9784] CPU: 0 PID: 9784 Comm: syz-executor140 Not tainted 5.5.0-rc7-syzkaller #0 [ 114.230049][ T9784] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 114.240212][ T9784] RIP: 0010:__list_del_entry_valid.cold+0x37/0x4f [ 114.246624][ T9784] 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 [ 114.266427][ T9784] RSP: 0018:ffffc90002197478 EFLAGS: 00010282 [ 114.272483][ T9784] RAX: 000000000000004e RBX: ffff88809456a800 RCX: 0000000000000000 [ 114.280467][ T9784] RDX: 0000000000000000 RSI: ffffffff815e5326 RDI: fffff52000432e81 [ 114.288433][ T9784] RBP: ffffc90002197490 R08: 000000000000004e R09: ffffed1015d06621 [ 114.296501][ T9784] R10: ffffed1015d06620 R11: ffff8880ae833107 R12: dead000000000122 [ 114.304478][ T9784] R13: ffffffff8a4c74b0 R14: ffff88809456a800 R15: ffff8880a871e900 [ 114.312488][ T9784] FS: 00007f71d7ede700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 114.321404][ T9784] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 114.328073][ T9784] CR2: 00007ffd9454dce0 CR3: 00000000914c4000 CR4: 00000000001406f0 [ 114.336046][ T9784] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 114.344016][ T9784] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 114.351975][ T9784] Call Trace: [ 114.355256][ T9784] __nf_tables_abort+0x1e53/0x2a50 [ 114.360364][ T9784] ? nfnl_err_del+0x115/0x170 [ 114.365148][ T9784] nf_tables_abort+0x17/0x30 [ 114.369862][ T9784] nfnetlink_rcv_batch+0xa5d/0x17a0 [ 114.375052][ T9784] ? nf_tables_delobj+0x8f0/0x8f0 [ 114.380217][ T9784] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 114.386074][ T9784] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 114.392568][ T9784] ? apparmor_capable+0x497/0x900 [ 114.397695][ T9784] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 114.403926][ T9784] ? __nla_validate_parse+0x2d0/0x1ee0 [ 114.409380][ T9784] ? cap_capable+0x205/0x270 [ 114.414272][ T9784] ? nla_memcpy+0xb0/0xb0 [ 114.418680][ T9784] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 114.424930][ T9784] ? ns_capable_common+0x93/0x100 [ 114.429969][ T9784] ? __nla_parse+0x43/0x60 [ 114.434417][ T9784] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 114.440158][ T9784] nfnetlink_rcv+0x3e7/0x460 [ 114.444842][ T9784] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 114.451145][ T9784] ? netlink_deliver_tap+0x24a/0xbe0 [ 114.456496][ T9784] ? __kasan_check_write+0x14/0x20 [ 114.461729][ T9784] netlink_unicast+0x58c/0x7d0 [ 114.467064][ T9784] ? netlink_attachskb+0x870/0x870 [ 114.472177][ T9784] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 114.477887][ T9784] ? __check_object_size+0x3d/0x437 [ 114.483197][ T9784] netlink_sendmsg+0x91c/0xea0 [ 114.488100][ T9784] ? netlink_unicast+0x7d0/0x7d0 [ 114.493139][ T9784] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 114.499553][ T9784] ? apparmor_socket_sendmsg+0x2a/0x30 [ 114.505015][ T9784] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 114.511354][ T9784] ? security_socket_sendmsg+0x8d/0xc0 [ 114.516873][ T9784] ? netlink_unicast+0x7d0/0x7d0 [ 114.522161][ T9784] sock_sendmsg+0xd7/0x130 [ 114.526572][ T9784] ____sys_sendmsg+0x753/0x880 [ 114.531475][ T9784] ? kernel_sendmsg+0x50/0x50 [ 114.536154][ T9784] ? __fget+0x35d/0x550 [ 114.540356][ T9784] ? find_held_lock+0x35/0x130 [ 114.545732][ T9784] ___sys_sendmsg+0x100/0x170 [ 114.550401][ T9784] ? sendmsg_copy_msghdr+0x70/0x70 [ 114.555517][ T9784] ? __kasan_check_read+0x11/0x20 [ 114.560537][ T9784] ? __fget+0x37f/0x550 [ 114.565039][ T9784] ? ksys_dup3+0x3e0/0x3e0 [ 114.569474][ T9784] ? __do_page_fault+0x56a/0xd80 [ 114.574550][ T9784] ? __fget_light+0x1a9/0x230 [ 114.579392][ T9784] ? __fdget+0x1b/0x20 [ 114.583466][ T9784] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 114.591501][ T9784] __sys_sendmsg+0x105/0x1d0 [ 114.596192][ T9784] ? __sys_sendmsg_sock+0xc0/0xc0 [ 114.601229][ T9784] ? down_read_non_owner+0x490/0x490 [ 114.606536][ T9784] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 114.612018][ T9784] ? do_syscall_64+0x26/0x790 [ 114.616712][ T9784] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 114.622974][ T9784] ? do_syscall_64+0x26/0x790 [ 114.627649][ T9784] __x64_sys_sendmsg+0x78/0xb0 [ 114.632545][ T9784] do_syscall_64+0xfa/0x790 [ 114.637058][ T9784] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 114.642960][ T9784] RIP: 0033:0x446af9 [ 114.646890][ T9784] Code: e8 0c e8 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 5b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 114.667415][ T9784] RSP: 002b:00007f71d7eddd98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 114.676435][ T9784] RAX: ffffffffffffffda RBX: 00000000006dbc28 RCX: 0000000000446af9 [ 114.684431][ T9784] RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003 [ 114.692461][ T9784] RBP: 00000000006dbc20 R08: 0000000000000000 R09: 0000000000000000 [ 114.700456][ T9784] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc2c [ 114.708454][ T9784] R13: 00000000200002c0 R14: 00000000004ae9a8 R15: 0000000000000000 [ 114.716859][ T9784] Modules linked in: [ 114.721326][ T9784] ---[ end trace 45ab90c6b0b3b94c ]--- [ 114.727521][ T9784] RIP: 0010:__list_del_entry_valid.cold+0x37/0x4f [ 114.734064][ T9784] 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 [ 114.753746][ T9784] RSP: 0018:ffffc90002197478 EFLAGS: 00010282 [ 114.759850][ T9784] RAX: 000000000000004e RBX: ffff88809456a800 RCX: 0000000000000000 [ 114.767838][ T9784] RDX: 0000000000000000 RSI: ffffffff815e5326 RDI: fffff52000432e81 [ 114.776036][ T9784] RBP: ffffc90002197490 R08: 000000000000004e R09: ffffed1015d06621 [ 114.784106][ T9784] R10: ffffed1015d06620 R11: ffff8880ae833107 R12: dead000000000122 [ 114.792130][ T9784] R13: ffffffff8a4c74b0 R14: ffff88809456a800 R15: ffff8880a871e900 [ 114.800173][ T9784] FS: 00007f71d7ede700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 114.809147][ T9784] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 114.815851][ T9784] CR2: 00007ffd9454dce0 CR3: 00000000914c4000 CR4: 00000000001406f0 [ 114.823920][ T9784] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 114.831946][ T9784] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 114.839957][ T9784] Kernel panic - not syncing: Fatal exception [ 114.847360][ T9784] Kernel Offset: disabled [ 114.851689][ T9784] Rebooting in 86400 seconds..