[ 90.408324][ T27] audit: type=1800 audit(1579127973.723:26): pid=9631 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. [ 91.393250][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 91.393264][ T27] audit: type=1800 audit(1579127974.723:29): pid=9631 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 [ 91.421633][ T27] audit: type=1800 audit(1579127974.723:30): pid=9631 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 '10.128.0.242' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 99.954840][ T9785] kasan: CONFIG_KASAN_INLINE enabled [ 99.960309][ T9785] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 99.968377][ T9785] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 99.975454][ T9785] CPU: 0 PID: 9785 Comm: syz-executor513 Not tainted 5.5.0-rc5-syzkaller #0 [ 99.984113][ T9785] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 99.994487][ T9785] RIP: 0010:nft_tunnel_get_init+0x65/0x2b0 [ 100.000383][ T9785] Code: 02 00 00 4c 8b 6b 08 4d 85 ed 0f 84 ba 01 00 00 e8 b0 6d 08 fb 49 8d 7d 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 df [ 100.020093][ T9785] RSP: 0018:ffffc9000832f398 EFLAGS: 00010247 [ 100.026160][ T9785] RAX: dffffc0000000000 RBX: ffff888096970008 RCX: ffffffff866740af [ 100.034189][ T9785] RDX: 0000000000000000 RSI: ffffffff866c87e0 RDI: 0000000000000004 [ 100.042306][ T9785] RBP: ffffc9000832f3c8 R08: ffff8880a2fbe380 R09: ffffed1015d0703d [ 100.050590][ T9785] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff888097a65d18 [ 100.058864][ T9785] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc9000832f498 [ 100.067136][ T9785] FS: 0000000001a8b880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 100.076118][ T9785] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 100.082749][ T9785] CR2: 00000000200009c6 CR3: 00000000a3861000 CR4: 00000000001406f0 [ 100.090860][ T9785] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 100.098876][ T9785] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 100.106896][ T9785] Call Trace: [ 100.110184][ T9785] ? nft_tunnel_get_dump+0x210/0x210 [ 100.115464][ T9785] nf_tables_newrule+0xd96/0x2400 [ 100.120473][ T9785] ? nf_tables_abort+0x30/0x30 [ 100.125231][ T9785] ? nla_memcpy+0xb0/0xb0 [ 100.129548][ T9785] ? __nla_parse+0x43/0x60 [ 100.133963][ T9785] nfnetlink_rcv_batch+0xf42/0x17a0 [ 100.139212][ T9785] ? nf_tables_abort+0x30/0x30 [ 100.145105][ T9785] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 100.151005][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.157227][ T9785] ? apparmor_capable+0x497/0x900 [ 100.162249][ T9785] ? __nla_validate_parse+0x2d0/0x1ee0 [ 100.167729][ T9785] ? cap_capable+0x205/0x270 [ 100.172330][ T9785] ? nla_memcpy+0xb0/0xb0 [ 100.176759][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.183003][ T9785] ? ns_capable_common+0x93/0x100 [ 100.188023][ T9785] ? __nla_parse+0x43/0x60 [ 100.192568][ T9785] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 100.198344][ T9785] nfnetlink_rcv+0x3e7/0x460 [ 100.202939][ T9785] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 100.208537][ T9785] ? netlink_deliver_tap+0x24a/0xbe0 [ 100.213939][ T9785] ? __kasan_check_write+0x14/0x20 [ 100.219098][ T9785] netlink_unicast+0x58c/0x7d0 [ 100.223846][ T9785] ? netlink_attachskb+0x870/0x870 [ 100.228950][ T9785] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 100.234670][ T9785] ? __check_object_size+0x3d/0x437 [ 100.239910][ T9785] netlink_sendmsg+0x91c/0xea0 [ 100.244769][ T9785] ? netlink_unicast+0x7d0/0x7d0 [ 100.250096][ T9785] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 100.255678][ T9785] ? apparmor_socket_sendmsg+0x2a/0x30 [ 100.261162][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.267415][ T9785] ? security_socket_sendmsg+0x8d/0xc0 [ 100.272872][ T9785] ? netlink_unicast+0x7d0/0x7d0 [ 100.277806][ T9785] sock_sendmsg+0xd7/0x130 [ 100.282217][ T9785] ____sys_sendmsg+0x753/0x880 [ 100.287044][ T9785] ? kernel_sendmsg+0x50/0x50 [ 100.291741][ T9785] ? lockdep_init_map+0x1be/0x6d0 [ 100.296768][ T9785] ___sys_sendmsg+0x100/0x170 [ 100.301631][ T9785] ? sendmsg_copy_msghdr+0x70/0x70 [ 100.306747][ T9785] ? __kasan_check_read+0x11/0x20 [ 100.311953][ T9785] ? __lock_acquire+0x8a0/0x4a00 [ 100.316873][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.323098][ T9785] ? __this_cpu_preempt_check+0x35/0x190 [ 100.328728][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.334966][ T9785] ? percpu_counter_add_batch+0x13c/0x190 [ 100.340702][ T9785] ? __fd_install+0x1bc/0x640 [ 100.345410][ T9785] ? find_held_lock+0x35/0x130 [ 100.350171][ T9785] ? __fd_install+0x1bc/0x640 [ 100.354829][ T9785] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 100.361205][ T9785] ? __fget_light+0x1a9/0x230 [ 100.365902][ T9785] ? __fdget+0x1b/0x20 [ 100.370319][ T9785] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 100.376740][ T9785] __sys_sendmsg+0x105/0x1d0 [ 100.381584][ T9785] ? __sys_sendmsg_sock+0xc0/0xc0 [ 100.386611][ T9785] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 100.392072][ T9785] ? do_syscall_64+0x26/0x790 [ 100.396927][ T9785] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.403002][ T9785] ? do_syscall_64+0x26/0x790 [ 100.407722][ T9785] __x64_sys_sendmsg+0x78/0xb0 [ 100.412687][ T9785] do_syscall_64+0xfa/0x790 [ 100.417509][ T9785] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 100.423413][ T9785] RIP: 0033:0x4407b9 [ 100.427297][ T9785] 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 [ 100.446927][ T9785] RSP: 002b:00007ffc80cbb3d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 100.455506][ T9785] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004407b9 [ 100.463633][ T9785] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000004 [ 100.471601][ T9785] RBP: 00000000006ca018 R08: 0000000000000001 R09: 00000000004002c8 [ 100.483682][ T9785] R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000402040 [ 100.491709][ T9785] R13: 00000000004020d0 R14: 0000000000000000 R15: 0000000000000000 [ 100.500856][ T9785] Modules linked in: [ 100.505996][ T9785] ---[ end trace 6a957fca3d7cb970 ]--- [ 100.511615][ T9785] RIP: 0010:nft_tunnel_get_init+0x65/0x2b0 [ 100.517561][ T9785] Code: 02 00 00 4c 8b 6b 08 4d 85 ed 0f 84 ba 01 00 00 e8 b0 6d 08 fb 49 8d 7d 04 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 df [ 100.537932][ T9785] RSP: 0018:ffffc9000832f398 EFLAGS: 00010247 [ 100.544279][ T9785] RAX: dffffc0000000000 RBX: ffff888096970008 RCX: ffffffff866740af [ 100.553202][ T9785] RDX: 0000000000000000 RSI: ffffffff866c87e0 RDI: 0000000000000004 [ 100.561401][ T9785] RBP: ffffc9000832f3c8 R08: ffff8880a2fbe380 R09: ffffed1015d0703d [ 100.569455][ T9785] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff888097a65d18 [ 100.577433][ T9785] R13: 0000000000000000 R14: 0000000000000000 R15: ffffc9000832f498 [ 100.585730][ T9785] FS: 0000000001a8b880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 100.594700][ T9785] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 100.601326][ T9785] CR2: 00000000200009c6 CR3: 00000000a3861000 CR4: 00000000001406f0 [ 100.609536][ T9785] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 100.617499][ T9785] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 100.625642][ T9785] Kernel panic - not syncing: Fatal exception [ 100.633431][ T9785] Kernel Offset: disabled [ 100.637891][ T9785] Rebooting in 86400 seconds..