[ 87.054615][ T26] audit: type=1800 audit(1578496816.565:26): pid=9464 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. [ 88.041198][ T26] kauditd_printk_skb: 2 callbacks suppressed [ 88.041211][ T26] audit: type=1800 audit(1578496817.585:29): pid=9464 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 [ 88.067644][ T26] audit: type=1800 audit(1578496817.585:30): pid=9464 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 '10.128.0.93' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 97.200614][ T9616] kasan: CONFIG_KASAN_INLINE enabled [ 97.206268][ T9616] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 97.214322][ T9616] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 97.221240][ T9616] CPU: 0 PID: 9616 Comm: syz-executor508 Not tainted 5.5.0-rc5-syzkaller #0 [ 97.230027][ T9616] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 97.240092][ T9616] RIP: 0010:hash_ipportnet4_uadt+0x20b/0x13e0 [ 97.246240][ T9616] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 71 0c 00 00 4c 89 e2 45 8b 6d 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 2c [ 97.265972][ T9616] RSP: 0018:ffffc90001f67150 EFLAGS: 00010246 [ 97.273528][ T9616] RAX: dffffc0000000000 RBX: ffffc90001f67320 RCX: 0000000000000000 [ 97.281491][ T9616] RDX: 0000000000000000 RSI: ffffffff867e1e88 RDI: ffff88809ef07ca0 [ 97.289446][ T9616] RBP: ffffc90001f672b8 R08: 0000000000000000 R09: 0000000000000000 [ 97.297403][ T9616] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 0000000000000000 [ 97.306049][ T9616] R13: 0000000004000000 R14: ffffc90001f67220 R15: ffff8880a65a4400 [ 97.314001][ T9616] FS: 0000000001928880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 97.322904][ T9616] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.329466][ T9616] CR2: 0000000020000086 CR3: 00000000a88f2000 CR4: 00000000001406f0 [ 97.337417][ T9616] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.345371][ T9616] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 97.353319][ T9616] Call Trace: [ 97.356598][ T9616] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 97.362472][ T9616] ? hash_ipportnet6_test+0x10c0/0x10c0 [ 97.368019][ T9616] ? hash_ipportnet6_uadt+0xeb0/0xeb0 [ 97.373368][ T9616] ? nla_memcpy+0xb0/0xb0 [ 97.377680][ T9616] ? ip_set_utest+0x4aa/0x890 [ 97.384174][ T9616] ? __kasan_check_read+0x11/0x20 [ 97.389180][ T9616] ip_set_utest+0x55b/0x890 [ 97.393661][ T9616] ? ip_set_put_byindex+0x490/0x490 [ 97.398862][ T9616] ? __mutex_lock+0x458/0x13c0 [ 97.403620][ T9616] ? ip_set_put_byindex+0x490/0x490 [ 97.408797][ T9616] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 97.413815][ T9616] ? nfnetlink_bind+0x2c0/0x2c0 [ 97.418647][ T9616] ? __kasan_check_read+0x11/0x20 [ 97.423648][ T9616] ? __lock_acquire+0x8a0/0x4a00 [ 97.428572][ T9616] ? save_stack+0x5c/0x90 [ 97.432884][ T9616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.439115][ T9616] ? apparmor_capable+0x497/0x900 [ 97.444133][ T9616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.450361][ T9616] ? __kasan_check_read+0x11/0x20 [ 97.455564][ T9616] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 97.461109][ T9616] netlink_rcv_skb+0x177/0x450 [ 97.465878][ T9616] ? nfnetlink_bind+0x2c0/0x2c0 [ 97.470729][ T9616] ? netlink_ack+0xb50/0xb50 [ 97.475298][ T9616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.481610][ T9616] ? ns_capable_common+0x93/0x100 [ 97.486615][ T9616] ? ns_capable+0x20/0x30 [ 97.490939][ T9616] ? __netlink_ns_capable+0x104/0x140 [ 97.496302][ T9616] nfnetlink_rcv+0x1ba/0x460 [ 97.500959][ T9616] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 97.506413][ T9616] ? netlink_deliver_tap+0x24a/0xbe0 [ 97.511687][ T9616] ? __kasan_check_write+0x14/0x20 [ 97.516868][ T9616] netlink_unicast+0x58c/0x7d0 [ 97.521633][ T9616] ? netlink_attachskb+0x870/0x870 [ 97.526736][ T9616] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 97.532593][ T9616] ? __check_object_size+0x3d/0x437 [ 97.537775][ T9616] netlink_sendmsg+0x91c/0xea0 [ 97.542540][ T9616] ? netlink_unicast+0x7d0/0x7d0 [ 97.547460][ T9616] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 97.553068][ T9616] ? apparmor_socket_sendmsg+0x2a/0x30 [ 97.558510][ T9616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.564728][ T9616] ? security_socket_sendmsg+0x8d/0xc0 [ 97.570180][ T9616] ? netlink_unicast+0x7d0/0x7d0 [ 97.575094][ T9616] sock_sendmsg+0xd7/0x130 [ 97.579490][ T9616] ____sys_sendmsg+0x753/0x880 [ 97.584326][ T9616] ? kernel_sendmsg+0x50/0x50 [ 97.588997][ T9616] ? lockdep_init_map+0x1be/0x6d0 [ 97.594019][ T9616] ___sys_sendmsg+0x100/0x170 [ 97.598687][ T9616] ? sendmsg_copy_msghdr+0x70/0x70 [ 97.603786][ T9616] ? __kasan_check_read+0x11/0x20 [ 97.608830][ T9616] ? __lock_acquire+0x8a0/0x4a00 [ 97.613802][ T9616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.620032][ T9616] ? __this_cpu_preempt_check+0x35/0x190 [ 97.625649][ T9616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.632070][ T9616] ? percpu_counter_add_batch+0x13c/0x190 [ 97.637774][ T9616] ? __fd_install+0x1bc/0x640 [ 97.642463][ T9616] ? find_held_lock+0x35/0x130 [ 97.647241][ T9616] ? __fd_install+0x1bc/0x640 [ 97.651902][ T9616] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 97.658134][ T9616] ? __fget_light+0x1a9/0x230 [ 97.664801][ T9616] ? __fdget+0x1b/0x20 [ 97.668868][ T9616] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 97.675090][ T9616] __sys_sendmsg+0x105/0x1d0 [ 97.679667][ T9616] ? __sys_sendmsg_sock+0xc0/0xc0 [ 97.684675][ T9616] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 97.690112][ T9616] ? do_syscall_64+0x26/0x790 [ 97.694766][ T9616] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.700824][ T9616] ? do_syscall_64+0x26/0x790 [ 97.705607][ T9616] __x64_sys_sendmsg+0x78/0xb0 [ 97.710461][ T9616] do_syscall_64+0xfa/0x790 [ 97.715044][ T9616] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 97.720934][ T9616] RIP: 0033:0x440899 [ 97.724812][ T9616] 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 [ 97.744843][ T9616] RSP: 002b:00007ffedd38b958 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 97.753242][ T9616] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440899 [ 97.761213][ T9616] RDX: 000000000c0000c4 RSI: 0000000020000280 RDI: 0000000000000004 [ 97.769225][ T9616] RBP: 00000000006ca018 R08: 0000000000000015 R09: 00000000004002c8 [ 97.777185][ T9616] R10: 0000000000000005 R11: 0000000000000246 R12: 0000000000402120 [ 97.785153][ T9616] R13: 00000000004021b0 R14: 0000000000000000 R15: 0000000000000000 [ 97.793811][ T9616] Modules linked in: [ 97.797731][ T9616] ---[ end trace d68f8da33149d4d5 ]--- [ 97.803190][ T9616] RIP: 0010:hash_ipportnet4_uadt+0x20b/0x13e0 [ 97.809279][ T9616] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 71 0c 00 00 4c 89 e2 45 8b 6d 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 e0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 2c [ 97.828913][ T9616] RSP: 0018:ffffc90001f67150 EFLAGS: 00010246 [ 97.835075][ T9616] RAX: dffffc0000000000 RBX: ffffc90001f67320 RCX: 0000000000000000 [ 97.843059][ T9616] RDX: 0000000000000000 RSI: ffffffff867e1e88 RDI: ffff88809ef07ca0 [ 97.851065][ T9616] RBP: ffffc90001f672b8 R08: 0000000000000000 R09: 0000000000000000 [ 97.859344][ T9616] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: 0000000000000000 [ 97.867363][ T9616] R13: 0000000004000000 R14: ffffc90001f67220 R15: ffff8880a65a4400 [ 97.875546][ T9616] FS: 0000000001928880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 97.884483][ T9616] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.891096][ T9616] CR2: 0000000020000086 CR3: 00000000a88f2000 CR4: 00000000001406f0 [ 97.899207][ T9616] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 97.907211][ T9616] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 97.915223][ T9616] Kernel panic - not syncing: Fatal exception in interrupt [ 97.924007][ T9616] Kernel Offset: disabled [ 97.928510][ T9616] Rebooting in 86400 seconds..