[ 99.322987][ T26] audit: type=1800 audit(1579199141.662:27): pid=9660 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 99.397034][ T26] audit: type=1800 audit(1579199141.662:28): pid=9660 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 100.235382][ T26] audit: type=1800 audit(1579199142.602:29): pid=9660 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 [ 100.255489][ T26] audit: type=1800 audit(1579199142.602:30): pid=9660 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 '10.128.1.33' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 110.058412][ T9813] kasan: CONFIG_KASAN_INLINE enabled [ 110.063870][ T9813] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 110.072351][ T9813] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 110.079703][ T9813] CPU: 1 PID: 9813 Comm: syz-executor740 Not tainted 5.5.0-rc5-syzkaller #0 [ 110.088371][ T9813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 110.098435][ T9813] RIP: 0010:nft_chain_parse_hook+0x386/0xa10 [ 110.104572][ T9813] Code: e8 6f 07 0e fb 41 83 fd 05 0f 87 62 05 00 00 e8 e0 05 0e fb 49 8d 7c 24 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a6 05 00 00 44 89 e9 be 01 00 [ 110.124294][ T9813] RSP: 0018:ffffc90001ff7100 EFLAGS: 00010206 [ 110.130358][ T9813] RAX: dffffc0000000000 RBX: ffffc90001ff72b0 RCX: ffffffff8666efa1 [ 110.139239][ T9813] RDX: 0000000000000003 RSI: ffffffff8666efb0 RDI: 0000000000000018 [ 110.147270][ T9813] RBP: ffffc90001ff71f0 R08: ffff888094506340 R09: 0000000000000000 [ 110.155682][ T9813] R10: fffff520003fee2f R11: ffffc90001ff717f R12: 0000000000000000 [ 110.163800][ T9813] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90001ff71c8 [ 110.171772][ T9813] FS: 0000000002098880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 110.180871][ T9813] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.187695][ T9813] CR2: 0000000020000280 CR3: 00000000a76ed000 CR4: 00000000001406e0 [ 110.195815][ T9813] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 110.203781][ T9813] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 110.211744][ T9813] Call Trace: [ 110.215252][ T9813] ? nf_tables_newset+0x2620/0x2620 [ 110.220441][ T9813] ? nft_trans_rule_add+0x2d0/0x2d0 [ 110.226173][ T9813] ? __kasan_check_read+0x11/0x20 [ 110.231183][ T9813] nf_tables_addchain.constprop.0+0x1c1/0x1520 [ 110.237568][ T9813] ? nft_chain_parse_hook+0xa10/0xa10 [ 110.242942][ T9813] ? nla_strcmp+0xe3/0x120 [ 110.247369][ T9813] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.253607][ T9813] ? nft_table_lookup+0x154/0x1b0 [ 110.258631][ T9813] nf_tables_newchain+0x1033/0x1820 [ 110.263825][ T9813] ? __mutex_lock+0x458/0x13c0 [ 110.268605][ T9813] ? nf_tables_addchain.constprop.0+0x1520/0x1520 [ 110.275012][ T9813] ? nla_memcpy+0xb0/0xb0 [ 110.279367][ T9813] ? __nla_parse+0x43/0x60 [ 110.283784][ T9813] nfnetlink_rcv_batch+0xf42/0x17a0 [ 110.288983][ T9813] ? nf_tables_addchain.constprop.0+0x1520/0x1520 [ 110.295391][ T9813] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 110.301200][ T9813] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.307441][ T9813] ? apparmor_capable+0x497/0x900 [ 110.312527][ T9813] ? __nla_validate_parse+0x2d0/0x1ee0 [ 110.318092][ T9813] ? cap_capable+0x205/0x270 [ 110.322698][ T9813] ? nla_memcpy+0xb0/0xb0 [ 110.327072][ T9813] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.333393][ T9813] ? ns_capable_common+0x93/0x100 [ 110.338417][ T9813] ? __nla_parse+0x43/0x60 [ 110.342929][ T9813] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 110.348682][ T9813] nfnetlink_rcv+0x3e7/0x460 [ 110.353444][ T9813] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 110.358952][ T9813] ? netlink_deliver_tap+0x24a/0xbe0 [ 110.364347][ T9813] ? __kasan_check_write+0x14/0x20 [ 110.369451][ T9813] netlink_unicast+0x58c/0x7d0 [ 110.374214][ T9813] ? netlink_attachskb+0x870/0x870 [ 110.379408][ T9813] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 110.385211][ T9813] ? __check_object_size+0x3d/0x437 [ 110.390513][ T9813] netlink_sendmsg+0x91c/0xea0 [ 110.395276][ T9813] ? netlink_unicast+0x7d0/0x7d0 [ 110.400324][ T9813] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 110.405869][ T9813] ? apparmor_socket_sendmsg+0x2a/0x30 [ 110.411324][ T9813] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.417750][ T9813] ? security_socket_sendmsg+0x8d/0xc0 [ 110.423211][ T9813] ? netlink_unicast+0x7d0/0x7d0 [ 110.428157][ T9813] sock_sendmsg+0xd7/0x130 [ 110.432561][ T9813] ____sys_sendmsg+0x753/0x880 [ 110.437325][ T9813] ? kernel_sendmsg+0x50/0x50 [ 110.442016][ T9813] ? lockdep_init_map+0x1be/0x6d0 [ 110.447123][ T9813] ___sys_sendmsg+0x100/0x170 [ 110.451811][ T9813] ? sendmsg_copy_msghdr+0x70/0x70 [ 110.456912][ T9813] ? __kasan_check_read+0x11/0x20 [ 110.461952][ T9813] ? __lock_acquire+0x8a0/0x4a00 [ 110.467066][ T9813] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.473300][ T9813] ? __this_cpu_preempt_check+0x35/0x190 [ 110.479299][ T9813] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.487456][ T9813] ? percpu_counter_add_batch+0x13c/0x190 [ 110.493174][ T9813] ? __fd_install+0x1bc/0x640 [ 110.497921][ T9813] ? find_held_lock+0x35/0x130 [ 110.502729][ T9813] ? __fd_install+0x1bc/0x640 [ 110.507523][ T9813] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 110.513753][ T9813] ? __fget_light+0x1a9/0x230 [ 110.518525][ T9813] ? __fdget+0x1b/0x20 [ 110.522594][ T9813] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 110.529143][ T9813] __sys_sendmsg+0x105/0x1d0 [ 110.533770][ T9813] ? __sys_sendmsg_sock+0xc0/0xc0 [ 110.538802][ T9813] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 110.544260][ T9813] ? do_syscall_64+0x26/0x790 [ 110.548939][ T9813] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 110.555033][ T9813] ? do_syscall_64+0x26/0x790 [ 110.559768][ T9813] __x64_sys_sendmsg+0x78/0xb0 [ 110.564534][ T9813] do_syscall_64+0xfa/0x790 [ 110.569064][ T9813] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 110.576221][ T9813] RIP: 0033:0x440559 [ 110.580349][ T9813] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 110.600235][ T9813] RSP: 002b:00007ffe0d71a488 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 110.608649][ T9813] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440559 [ 110.616808][ T9813] RDX: 0000000004000000 RSI: 000000002000d400 RDI: 0000000000000004 [ 110.625023][ T9813] RBP: 00000000006ca018 R08: 0000000000000003 R09: 00000000004002c8 [ 110.633367][ T9813] R10: 0000000000000009 R11: 0000000000000246 R12: 0000000000401de0 [ 110.641464][ T9813] R13: 0000000000401e70 R14: 0000000000000000 R15: 0000000000000000 [ 110.649565][ T9813] Modules linked in: [ 110.655654][ T9813] ---[ end trace 568b98ea22fff8da ]--- [ 110.661368][ T9813] RIP: 0010:nft_chain_parse_hook+0x386/0xa10 [ 110.667538][ T9813] Code: e8 6f 07 0e fb 41 83 fd 05 0f 87 62 05 00 00 e8 e0 05 0e fb 49 8d 7c 24 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e a6 05 00 00 44 89 e9 be 01 00 [ 110.687426][ T9813] RSP: 0018:ffffc90001ff7100 EFLAGS: 00010206 [ 110.693714][ T9813] RAX: dffffc0000000000 RBX: ffffc90001ff72b0 RCX: ffffffff8666efa1 [ 110.701752][ T9813] RDX: 0000000000000003 RSI: ffffffff8666efb0 RDI: 0000000000000018 [ 110.710337][ T9813] RBP: ffffc90001ff71f0 R08: ffff888094506340 R09: 0000000000000000 [ 110.718742][ T9813] R10: fffff520003fee2f R11: ffffc90001ff717f R12: 0000000000000000 [ 110.727201][ T9813] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc90001ff71c8 [ 110.735295][ T9813] FS: 0000000002098880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 110.744617][ T9813] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 110.751260][ T9813] CR2: 0000563bdf7d3110 CR3: 00000000a76ed000 CR4: 00000000001406f0 [ 110.759695][ T9813] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 110.767829][ T9813] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 110.776092][ T9813] Kernel panic - not syncing: Fatal exception [ 110.783584][ T9813] Kernel Offset: disabled [ 110.787916][ T9813] Rebooting in 86400 seconds..