[ 71.958784][ T27] audit: type=1800 audit(1580307497.160:25): pid=9836 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 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. [ 72.923518][ T27] kauditd_printk_skb: 3 callbacks suppressed [ 72.923530][ T27] audit: type=1800 audit(1580307498.130:29): pid=9836 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 [ 72.950150][ T27] audit: type=1800 audit(1580307498.130:30): pid=9836 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 '10.128.0.137' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 82.232914][ T9987] general protection fault, probably for non-canonical address 0xdffffc00060e8d2f: 0000 [#1] PREEMPT SMP KASAN [ 82.244677][ T9987] KASAN: probably user-memory-access in range [0x0000000030746978-0x000000003074697f] [ 82.254194][ T9987] CPU: 1 PID: 9987 Comm: syz-executor598 Not tainted 5.5.0-syzkaller #0 [ 82.262492][ T9987] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.272531][ T9987] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 [ 82.279092][ T9987] Code: bc 24 50 ff ff ff 48 ba 00 00 00 00 00 fc ff df 4d 8b ae 00 02 00 00 4d 8b a4 24 58 ff ff ff 49 8d 7f 08 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 cd 01 00 00 4c 89 e2 49 89 47 08 48 b8 00 00 00 [ 82.298678][ T9987] RSP: 0018:ffffc90002067228 EFLAGS: 00010202 [ 82.304728][ T9987] RAX: ffff888097914250 RBX: 1ffff9200040ce49 RCX: 00000000060e8d2f [ 82.312702][ T9987] RDX: dffffc0000000000 RSI: ffffffff867501ce RDI: 000000003074697b [ 82.320651][ T9987] RBP: ffffc90002067370 R08: ffff888095678600 R09: fffff5200040ce55 [ 82.328639][ T9987] R10: fffff5200040ce54 R11: ffffc900020672a6 R12: 0000000000000000 [ 82.336591][ T9987] R13: ffff888097914250 R14: ffff888097914050 R15: 0000000030746973 [ 82.344582][ T9987] FS: 0000000002305880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.353487][ T9987] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.360043][ T9987] CR2: 0000000020000104 CR3: 00000000a2143000 CR4: 00000000001406e0 [ 82.368027][ T9987] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.375984][ T9987] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.383932][ T9987] Call Trace: [ 82.387201][ T9987] ? flow_offload_queue_work+0x130/0x130 [ 82.392820][ T9987] ? nft_netdev_hook_alloc+0xfb/0x170 [ 82.398167][ T9987] ? nf_tables_init_net+0x1e0/0x1e0 [ 82.403343][ T9987] ? nla_memcpy+0xb0/0xb0 [ 82.407645][ T9987] ? wait_for_completion+0x440/0x440 [ 82.412916][ T9987] ? trace_hardirqs_on+0x67/0x240 [ 82.417917][ T9987] ? nf_tables_parse_netdev_hooks+0x70/0x660 [ 82.423876][ T9987] nf_tables_newflowtable+0x1352/0x1d90 [ 82.429404][ T9987] ? nf_tables_newrule+0x2400/0x2400 [ 82.434685][ T9987] ? __nla_parse+0x43/0x60 [ 82.439094][ T9987] nfnetlink_rcv_batch+0x8c8/0x1790 [ 82.444328][ T9987] ? nf_tables_newrule+0x2400/0x2400 [ 82.449610][ T9987] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 82.455412][ T9987] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.461636][ T9987] ? apparmor_capable+0x497/0x900 [ 82.466644][ T9987] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.472868][ T9987] ? __nla_validate_parse+0x2d0/0x1ee0 [ 82.478306][ T9987] ? cap_capable+0x205/0x270 [ 82.482877][ T9987] ? nla_memcpy+0xb0/0xb0 [ 82.487186][ T9987] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.493411][ T9987] ? ns_capable_common+0x93/0x100 [ 82.498413][ T9987] ? __nla_parse+0x43/0x60 [ 82.502807][ T9987] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 82.508505][ T9987] nfnetlink_rcv+0x3e7/0x460 [ 82.513076][ T9987] ? nfnetlink_rcv_batch+0x1790/0x1790 [ 82.518509][ T9987] ? netlink_deliver_tap+0x248/0xbf0 [ 82.523781][ T9987] ? __kasan_check_write+0x14/0x20 [ 82.528872][ T9987] netlink_unicast+0x59e/0x7e0 [ 82.533615][ T9987] ? netlink_attachskb+0x870/0x870 [ 82.538708][ T9987] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 82.544403][ T9987] ? __check_object_size+0x3d/0x437 [ 82.549579][ T9987] netlink_sendmsg+0x91c/0xea0 [ 82.554334][ T9987] ? netlink_unicast+0x7e0/0x7e0 [ 82.559249][ T9987] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 82.564769][ T9987] ? apparmor_socket_sendmsg+0x2a/0x30 [ 82.570207][ T9987] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.576439][ T9987] ? security_socket_sendmsg+0x8d/0xc0 [ 82.581871][ T9987] ? netlink_unicast+0x7e0/0x7e0 [ 82.586787][ T9987] sock_sendmsg+0xd7/0x130 [ 82.591181][ T9987] ____sys_sendmsg+0x753/0x880 [ 82.595922][ T9987] ? kernel_sendmsg+0x50/0x50 [ 82.600589][ T9987] ___sys_sendmsg+0x100/0x170 [ 82.605241][ T9987] ? sendmsg_copy_msghdr+0x70/0x70 [ 82.610327][ T9987] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 82.616285][ T9987] ? prep_transhuge_page+0xa0/0xa0 [ 82.621375][ T9987] ? do_page_fault+0x579/0x12e1 [ 82.626220][ T9987] ? find_held_lock+0x35/0x130 [ 82.630969][ T9987] ? do_page_fault+0x579/0x12e1 [ 82.635801][ T9987] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 82.642020][ T9987] ? __fget_light+0x1a9/0x230 [ 82.646679][ T9987] ? __fdget+0x1b/0x20 [ 82.650729][ T9987] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 82.656950][ T9987] __sys_sendmsg+0x105/0x1d0 [ 82.661552][ T9987] ? __sys_sendmsg_sock+0xc0/0xc0 [ 82.666563][ T9987] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 82.672000][ T9987] ? do_syscall_64+0x26/0x790 [ 82.676666][ T9987] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.682726][ T9987] ? do_syscall_64+0x26/0x790 [ 82.687381][ T9987] __x64_sys_sendmsg+0x78/0xb0 [ 82.692124][ T9987] do_syscall_64+0xfa/0x790 [ 82.696604][ T9987] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 82.702472][ T9987] RIP: 0033:0x440689 [ 82.706345][ T9987] 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 [ 82.725932][ T9987] RSP: 002b:00007fff322b1b58 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 82.734317][ T9987] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440689 [ 82.742264][ T9987] RDX: 0000000000000000 RSI: 0000000020003e00 RDI: 0000000000000003 [ 82.750220][ T9987] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 82.758164][ T9987] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401f10 [ 82.766381][ T9987] R13: 0000000000401fa0 R14: 0000000000000000 R15: 0000000000000000 [ 82.774346][ T9987] Modules linked in: [ 82.778371][ T9987] ---[ end trace aa897fb9305e3bf0 ]--- [ 82.783898][ T9987] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 [ 82.790502][ T9987] Code: bc 24 50 ff ff ff 48 ba 00 00 00 00 00 fc ff df 4d 8b ae 00 02 00 00 4d 8b a4 24 58 ff ff ff 49 8d 7f 08 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 cd 01 00 00 4c 89 e2 49 89 47 08 48 b8 00 00 00 [ 82.810242][ T9987] RSP: 0018:ffffc90002067228 EFLAGS: 00010202 [ 82.816289][ T9987] RAX: ffff888097914250 RBX: 1ffff9200040ce49 RCX: 00000000060e8d2f [ 82.824274][ T9987] RDX: dffffc0000000000 RSI: ffffffff867501ce RDI: 000000003074697b [ 82.832259][ T9987] RBP: ffffc90002067370 R08: ffff888095678600 R09: fffff5200040ce55 [ 82.840277][ T9987] R10: fffff5200040ce54 R11: ffffc900020672a6 R12: 0000000000000000 [ 82.848273][ T9987] R13: ffff888097914250 R14: ffff888097914050 R15: 0000000030746973 [ 82.856295][ T9987] FS: 0000000002305880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 82.865241][ T9987] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 82.871869][ T9987] CR2: 0000000020000104 CR3: 00000000a2143000 CR4: 00000000001406e0 [ 82.879876][ T9987] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 82.887841][ T9987] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 82.895838][ T9987] Kernel panic - not syncing: Fatal exception [ 82.903223][ T9987] Kernel Offset: disabled [ 82.907545][ T9987] Rebooting in 86400 seconds..