[ 74.123645][ T27] audit: type=1800 audit(1580083623.146:26): pid=9743 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[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 75.149281][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 75.149292][ T27] audit: type=1800 audit(1580083624.186:29): pid=9743 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 [ 75.177046][ T27] audit: type=1800 audit(1580083624.186:30): pid=9743 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 '10.128.0.125' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 85.846406][ T9899] IPVS: ftp: loaded support on port[0] = 21 [ 86.682214][ T9899] kasan: CONFIG_KASAN_INLINE enabled [ 86.687852][ T9899] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 86.696516][ T9899] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 86.703562][ T9899] CPU: 0 PID: 9899 Comm: syz-executor075 Not tainted 5.5.0-rc7-syzkaller #0 [ 86.712345][ T9899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.722845][ T9899] RIP: 0010:strlen+0x1f/0xa0 [ 86.727448][ T9899] Code: 00 66 2e 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 fa 48 89 e5 48 c1 ea 03 41 54 49 89 fc 53 48 83 ec 08 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 4d 41 80 3c 24 [ 86.747738][ T9899] RSP: 0018:ffffc90002696e90 EFLAGS: 00010286 [ 86.753794][ T9899] RAX: dffffc0000000000 RBX: ffff8880957d7018 RCX: 1ffffffff14f6d16 [ 86.761742][ T9899] RDX: 00000000000000c3 RSI: ffffffff8673a421 RDI: 0000000000000618 [ 86.769703][ T9899] RBP: ffffc90002696ea8 R08: ffff888096df60c0 R09: ffffed1012afae03 [ 86.777925][ T9899] R10: ffffed1012afae02 R11: ffff8880957d7017 R12: 0000000000000618 [ 86.785876][ T9899] R13: 0000000000000608 R14: ffff8880a4f9dc00 R15: ffff8880957d7000 [ 86.793827][ T9899] FS: 000000000085c880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 86.802736][ T9899] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 86.809305][ T9899] CR2: 00005588eca91100 CR3: 00000000a7cab000 CR4: 00000000001406f0 [ 86.817546][ T9899] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 86.825498][ T9899] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 86.833445][ T9899] Call Trace: [ 86.836721][ T9899] ip_set_comment_free+0x69/0xe0 [ 86.841635][ T9899] hash_net4_add+0x1b9a/0x2200 [ 86.846379][ T9899] hash_net4_uadt+0x596/0x940 [ 86.851033][ T9899] ? hash_net4_head+0x730/0x730 [ 86.855856][ T9899] ? hash_net6_uadt+0x880/0x880 [ 86.860698][ T9899] call_ad+0x1a0/0x5a0 [ 86.864747][ T9899] ? start_msg+0x220/0x220 [ 86.869780][ T9899] ? nla_memcpy+0xb0/0xb0 [ 86.874260][ T9899] ? __nla_parse+0x43/0x60 [ 86.878655][ T9899] ip_set_ad.isra.0+0x572/0xb20 [ 86.883515][ T9899] ? ip_set_nfnl_get_byindex+0x460/0x460 [ 86.889154][ T9899] ? nla_memcpy+0xb0/0xb0 [ 86.893480][ T9899] ? lock_downgrade+0x920/0x920 [ 86.898332][ T9899] ip_set_uadd+0x37/0x50 [ 86.902559][ T9899] ? ip_set_udel+0x50/0x50 [ 86.906982][ T9899] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 86.912113][ T9899] ? nfnetlink_bind+0x2c0/0x2c0 [ 86.917184][ T9899] ? __kasan_check_read+0x11/0x20 [ 86.922386][ T9899] ? __lock_acquire+0x8a0/0x4a00 [ 86.927317][ T9899] ? save_stack+0x5c/0x90 [ 86.931765][ T9899] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.938010][ T9899] ? apparmor_capable+0x497/0x900 [ 86.943043][ T9899] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.949283][ T9899] ? __kasan_check_read+0x11/0x20 [ 86.954551][ T9899] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 86.960000][ T9899] netlink_rcv_skb+0x177/0x450 [ 86.964796][ T9899] ? nfnetlink_bind+0x2c0/0x2c0 [ 86.969787][ T9899] ? netlink_ack+0xb50/0xb50 [ 86.974374][ T9899] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 86.980615][ T9899] ? ns_capable_common+0x93/0x100 [ 86.985673][ T9899] ? ns_capable+0x20/0x30 [ 86.989994][ T9899] ? __netlink_ns_capable+0x104/0x140 [ 86.995379][ T9899] nfnetlink_rcv+0x1ba/0x460 [ 87.000085][ T9899] ? nfnetlink_rcv_batch+0x17b0/0x17b0 [ 87.005548][ T9899] ? netlink_deliver_tap+0x24a/0xbe0 [ 87.010835][ T9899] ? __kasan_check_write+0x14/0x20 [ 87.015960][ T9899] netlink_unicast+0x58c/0x7d0 [ 87.020852][ T9899] ? netlink_attachskb+0x870/0x870 [ 87.026246][ T9899] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 87.032245][ T9899] ? __check_object_size+0x3d/0x437 [ 87.037532][ T9899] netlink_sendmsg+0x91c/0xea0 [ 87.043399][ T9899] ? netlink_unicast+0x7d0/0x7d0 [ 87.048620][ T9899] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 87.054180][ T9899] ? apparmor_socket_sendmsg+0x2a/0x30 [ 87.059631][ T9899] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 87.065979][ T9899] ? security_socket_sendmsg+0x8d/0xc0 [ 87.071447][ T9899] ? netlink_unicast+0x7d0/0x7d0 [ 87.076921][ T9899] sock_sendmsg+0xd7/0x130 [ 87.081762][ T9899] ____sys_sendmsg+0x753/0x880 [ 87.086707][ T9899] ? kernel_sendmsg+0x50/0x50 [ 87.091471][ T9899] ? lockdep_init_map+0x1be/0x6d0 [ 87.097842][ T9899] ___sys_sendmsg+0x100/0x170 [ 87.102542][ T9899] ? sendmsg_copy_msghdr+0x70/0x70 [ 87.108261][ T9899] ? __kasan_check_read+0x11/0x20 [ 87.113337][ T9899] ? __lock_acquire+0x8a0/0x4a00 [ 87.118275][ T9899] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 87.124649][ T9899] ? __this_cpu_preempt_check+0x35/0x190 [ 87.130595][ T9899] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 87.136932][ T9899] ? percpu_counter_add_batch+0x13c/0x190 [ 87.142658][ T9899] ? __fd_install+0x1bc/0x640 [ 87.147337][ T9899] ? find_held_lock+0x35/0x130 [ 87.152210][ T9899] ? __fd_install+0x1bc/0x640 [ 87.156887][ T9899] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 87.163129][ T9899] ? __fget_light+0x1a9/0x230 [ 87.167803][ T9899] ? __fdget+0x1b/0x20 [ 87.172144][ T9899] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 87.178404][ T9899] __sys_sendmsg+0x105/0x1d0 [ 87.183082][ T9899] ? __sys_sendmsg_sock+0xc0/0xc0 [ 87.188324][ T9899] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 87.193891][ T9899] ? do_syscall_64+0x26/0x790 [ 87.198855][ T9899] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 87.205130][ T9899] ? do_syscall_64+0x26/0x790 [ 87.210150][ T9899] __x64_sys_sendmsg+0x78/0xb0 [ 87.215003][ T9899] do_syscall_64+0xfa/0x790 [ 87.219750][ T9899] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 87.225751][ T9899] RIP: 0033:0x441559 [ 87.229657][ T9899] 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 5b 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 87.250078][ T9899] RSP: 002b:00007ffd2f68d6a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 87.258634][ T9899] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441559 [ 87.266823][ T9899] RDX: 0000000000000000 RSI: 0000000020000d00 RDI: 0000000000000004 [ 87.274912][ T9899] RBP: 00007ffd2f68d6d0 R08: 0000000000000000 R09: 0000000000000000 [ 87.282886][ T9899] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 87.290859][ T9899] R13: 0000000000000004 R14: 00007ffd2f68d700 R15: 0000000000000000 [ 87.298935][ T9899] Modules linked in: [ 87.302903][ T9899] ---[ end trace 803abee1a421cb4c ]--- [ 87.308582][ T9899] RIP: 0010:strlen+0x1f/0xa0 [ 87.313181][ T9899] Code: 00 66 2e 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 fa 48 89 e5 48 c1 ea 03 41 54 49 89 fc 53 48 83 ec 08 <0f> b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 4d 41 80 3c 24 [ 87.333106][ T9899] RSP: 0018:ffffc90002696e90 EFLAGS: 00010286 [ 87.339191][ T9899] RAX: dffffc0000000000 RBX: ffff8880957d7018 RCX: 1ffffffff14f6d16 [ 87.347308][ T9899] RDX: 00000000000000c3 RSI: ffffffff8673a421 RDI: 0000000000000618 [ 87.355414][ T9899] RBP: ffffc90002696ea8 R08: ffff888096df60c0 R09: ffffed1012afae03 [ 87.363488][ T9899] R10: ffffed1012afae02 R11: ffff8880957d7017 R12: 0000000000000618 [ 87.371563][ T9899] R13: 0000000000000608 R14: ffff8880a4f9dc00 R15: ffff8880957d7000 [ 87.382173][ T9899] FS: 000000000085c880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 87.391174][ T9899] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.398013][ T9899] CR2: 00005588eca91100 CR3: 00000000a7cab000 CR4: 00000000001406f0 [ 87.406043][ T9899] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 87.414309][ T9899] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 87.422515][ T9899] Kernel panic - not syncing: Fatal exception in interrupt [ 87.431342][ T9899] Kernel Offset: disabled [ 87.435673][ T9899] Rebooting in 86400 seconds..