[ 82.355348][ T27] audit: type=1800 audit(1580447709.763:26): pid=9495 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. [ 83.504593][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 83.504605][ T27] audit: type=1800 audit(1580447710.933:29): pid=9495 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 [ 83.531086][ T27] audit: type=1800 audit(1580447710.933:30): pid=9495 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 '10.128.0.15' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 90.600564][ T9650] general protection fault, probably for non-canonical address 0xdffffc00060e8d2f: 0000 [#1] PREEMPT SMP KASAN [ 90.612355][ T9650] KASAN: probably user-memory-access in range [0x0000000030746978-0x000000003074697f] [ 90.621914][ T9650] CPU: 1 PID: 9650 Comm: syz-executor966 Not tainted 5.5.0-syzkaller #0 [ 90.630209][ T9650] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.640292][ T9650] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 [ 90.646897][ T9650] 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 [ 90.666568][ T9650] RSP: 0018:ffffc9000624f228 EFLAGS: 00010202 [ 90.672649][ T9650] RAX: ffff88809bc72250 RBX: 1ffff92000c49e49 RCX: 00000000060e8d2f [ 90.680608][ T9650] RDX: dffffc0000000000 RSI: ffffffff868171ce RDI: 000000003074697b [ 90.688572][ T9650] RBP: ffffc9000624f370 R08: ffff888087e06640 R09: fffff52000c49e55 [ 90.696552][ T9650] R10: fffff52000c49e54 R11: ffffc9000624f2a6 R12: 0000000000000000 [ 90.704511][ T9650] R13: ffff88809bc72250 R14: ffff88809bc72050 R15: 0000000030746973 [ 90.712479][ T9650] FS: 0000000002539880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 90.721432][ T9650] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.728138][ T9650] CR2: 0000000020003e00 CR3: 00000000a1128000 CR4: 00000000001406e0 [ 90.736106][ T9650] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.744084][ T9650] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.752035][ T9650] Call Trace: [ 90.755310][ T9650] ? flow_offload_queue_work+0x130/0x130 [ 90.760920][ T9650] ? nft_netdev_hook_alloc+0xfb/0x170 [ 90.766270][ T9650] ? nf_tables_init_net+0x1e0/0x1e0 [ 90.771461][ T9650] ? nla_memcpy+0xb0/0xb0 [ 90.775790][ T9650] ? wait_for_completion+0x440/0x440 [ 90.781153][ T9650] ? trace_hardirqs_on+0x67/0x240 [ 90.786173][ T9650] ? nf_tables_parse_netdev_hooks+0x70/0x660 [ 90.792138][ T9650] nf_tables_newflowtable+0x1352/0x1d90 [ 90.797687][ T9650] ? nf_tables_newrule+0x2400/0x2400 [ 90.802958][ T9650] ? __nla_parse+0x43/0x60 [ 90.807376][ T9650] nfnetlink_rcv_batch+0x8c8/0x1790 [ 90.812567][ T9650] ? nf_tables_newrule+0x2400/0x2400 [ 90.817830][ T9650] ? nfnetlink_subsys_register+0x2b0/0x2b0 [ 90.823626][ T9650] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.829844][ T9650] ? apparmor_capable+0x497/0x900 [ 90.834862][ T9650] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.841080][ T9650] ? __nla_validate_parse+0x2d0/0x1ee0 [ 90.846531][ T9650] ? cap_capable+0x205/0x270 [ 90.851103][ T9650] ? nla_memcpy+0xb0/0xb0 [ 90.855536][ T9650] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.861764][ T9650] ? ns_capable_common+0x93/0x100 [ 90.866826][ T9650] ? __nla_parse+0x43/0x60 [ 90.871237][ T9650] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 90.876959][ T9650] nfnetlink_rcv+0x3e7/0x460 [ 90.881539][ T9650] ? nfnetlink_rcv_batch+0x1790/0x1790 [ 90.886976][ T9650] ? netlink_deliver_tap+0x248/0xbf0 [ 90.892288][ T9650] ? __kasan_check_write+0x14/0x20 [ 90.897376][ T9650] netlink_unicast+0x59e/0x7e0 [ 90.902118][ T9650] ? netlink_attachskb+0x870/0x870 [ 90.907247][ T9650] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 90.912960][ T9650] ? __check_object_size+0x3d/0x437 [ 90.918183][ T9650] netlink_sendmsg+0x91c/0xea0 [ 90.922938][ T9650] ? netlink_unicast+0x7e0/0x7e0 [ 90.927893][ T9650] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 90.933419][ T9650] ? apparmor_socket_sendmsg+0x2a/0x30 [ 90.938905][ T9650] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.945142][ T9650] ? security_socket_sendmsg+0x8d/0xc0 [ 90.950626][ T9650] ? netlink_unicast+0x7e0/0x7e0 [ 90.955551][ T9650] sock_sendmsg+0xd7/0x130 [ 90.959945][ T9650] ____sys_sendmsg+0x753/0x880 [ 90.964697][ T9650] ? kernel_sendmsg+0x50/0x50 [ 90.969358][ T9650] ___sys_sendmsg+0x100/0x170 [ 90.974016][ T9650] ? sendmsg_copy_msghdr+0x70/0x70 [ 90.979114][ T9650] ? do_huge_pmd_anonymous_page+0xceb/0x1a50 [ 90.985088][ T9650] ? prep_transhuge_page+0xa0/0xa0 [ 90.990185][ T9650] ? do_page_fault+0x579/0x12e1 [ 90.995028][ T9650] ? find_held_lock+0x35/0x130 [ 90.999767][ T9650] ? do_page_fault+0x579/0x12e1 [ 91.004691][ T9650] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.010927][ T9650] ? __fget_light+0x1ad/0x270 [ 91.015583][ T9650] ? __fdget+0x1b/0x20 [ 91.019644][ T9650] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 91.026126][ T9650] __sys_sendmsg+0x105/0x1d0 [ 91.030696][ T9650] ? __sys_sendmsg_sock+0xc0/0xc0 [ 91.035717][ T9650] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 91.041157][ T9650] ? do_syscall_64+0x26/0x790 [ 91.045819][ T9650] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.051875][ T9650] ? do_syscall_64+0x26/0x790 [ 91.056533][ T9650] __x64_sys_sendmsg+0x78/0xb0 [ 91.061272][ T9650] do_syscall_64+0xfa/0x790 [ 91.065781][ T9650] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.071679][ T9650] RIP: 0033:0x4401b9 [ 91.075551][ T9650] 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 [ 91.095133][ T9650] RSP: 002b:00007fff649b30f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 91.103525][ T9650] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401b9 [ 91.111478][ T9650] RDX: 0000000000000000 RSI: 0000000020003e00 RDI: 0000000000000003 [ 91.119441][ T9650] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 91.127396][ T9650] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a40 [ 91.135342][ T9650] R13: 0000000000401ad0 R14: 0000000000000000 R15: 0000000000000000 [ 91.143297][ T9650] Modules linked in: [ 91.147661][ T9650] ---[ end trace 04e4dc45968ef975 ]--- [ 91.153272][ T9650] RIP: 0010:nf_flow_table_offload_setup+0x4dc/0x6d0 [ 91.159849][ T9650] 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 [ 91.179572][ T9650] RSP: 0018:ffffc9000624f228 EFLAGS: 00010202 [ 91.185673][ T9650] RAX: ffff88809bc72250 RBX: 1ffff92000c49e49 RCX: 00000000060e8d2f [ 91.193676][ T9650] RDX: dffffc0000000000 RSI: ffffffff868171ce RDI: 000000003074697b [ 91.201672][ T9650] RBP: ffffc9000624f370 R08: ffff888087e06640 R09: fffff52000c49e55 [ 91.209645][ T9650] R10: fffff52000c49e54 R11: ffffc9000624f2a6 R12: 0000000000000000 [ 91.217641][ T9650] R13: ffff88809bc72250 R14: ffff88809bc72050 R15: 0000000030746973 [ 91.225643][ T9650] FS: 0000000002539880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 91.234586][ T9650] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.241171][ T9650] CR2: 0000000020003e00 CR3: 00000000a1128000 CR4: 00000000001406e0 [ 91.249184][ T9650] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.257195][ T9650] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.265206][ T9650] Kernel panic - not syncing: Fatal exception [ 91.272618][ T9650] Kernel Offset: disabled [ 91.276945][ T9650] Rebooting in 86400 seconds..