[ 78.497247][ T26] audit: type=1800 audit(1578455630.249:27): pid=9592 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 78.529824][ T26] audit: type=1800 audit(1578455630.249:28): pid=9592 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 79.653807][ T26] audit: type=1800 audit(1578455631.489:29): pid=9592 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 [ 79.674335][ T26] audit: type=1800 audit(1578455631.489:30): pid=9592 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 '10.128.0.19' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 90.757807][ T9744] kasan: CONFIG_KASAN_INLINE enabled [ 90.763378][ T9744] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 90.771684][ T9744] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 90.778633][ T9744] CPU: 0 PID: 9744 Comm: syz-executor487 Not tainted 5.5.0-rc5-syzkaller #0 [ 90.787539][ T9744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 90.797637][ T9744] RIP: 0010:hash_mac4_uadt+0x1bc/0x470 [ 90.803085][ T9744] Code: 11 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 5c 02 00 00 4c 89 f2 8b 48 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 1a [ 90.822676][ T9744] RSP: 0018:ffffc90007cb71b0 EFLAGS: 00010246 [ 90.828733][ T9744] RAX: dffffc0000000000 RBX: ffffc90007cb7320 RCX: 0000000008000000 [ 90.836688][ T9744] RDX: 0000000000000000 RSI: ffffffff867f5cd5 RDI: ffff888098417104 [ 90.844646][ T9744] RBP: ffffc90007cb72b8 R08: 0000000000000000 R09: 0000000000000000 [ 90.852609][ T9744] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff8880a789eb00 [ 90.860558][ T9744] R13: 1ffff92000f96e3a R14: 0000000000000000 R15: ffffc90007cb7200 [ 90.868519][ T9744] FS: 0000000001947880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 90.877440][ T9744] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 90.883999][ T9744] CR2: 0000000020000f98 CR3: 0000000094182000 CR4: 00000000001406f0 [ 90.891950][ T9744] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 90.899904][ T9744] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 90.907854][ T9744] Call Trace: [ 90.911134][ T9744] ? hash_mac_create+0x860/0x860 [ 90.916048][ T9744] ? hash_mac4_kadt+0x510/0x510 [ 90.920888][ T9744] ? nla_memcpy+0xb0/0xb0 [ 90.925216][ T9744] ? lock_acquire+0x190/0x410 [ 90.929874][ T9744] ? __kasan_check_read+0x11/0x20 [ 90.934881][ T9744] ip_set_utest+0x55b/0x890 [ 90.939366][ T9744] ? ip_set_put_byindex+0x490/0x490 [ 90.944543][ T9744] ? __mutex_lock+0x458/0x13c0 [ 90.949303][ T9744] ? ip_set_put_byindex+0x490/0x490 [ 90.954478][ T9744] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 90.959402][ T9744] ? nfnetlink_bind+0x2c0/0x2c0 [ 90.964242][ T9744] ? __kasan_check_read+0x11/0x20 [ 90.969251][ T9744] ? __lock_acquire+0x8a0/0x4a00 [ 90.974173][ T9744] ? save_stack+0x5c/0x90 [ 90.978484][ T9744] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.984702][ T9744] ? apparmor_capable+0x497/0x900 [ 90.989705][ T9744] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 90.996962][ T9744] ? __kasan_check_read+0x11/0x20 [ 91.001961][ T9744] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 91.007399][ T9744] netlink_rcv_skb+0x177/0x450 [ 91.012148][ T9744] ? nfnetlink_bind+0x2c0/0x2c0 [ 91.016975][ T9744] ? netlink_ack+0xb50/0xb50 [ 91.021544][ T9744] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.027761][ T9744] ? ns_capable_common+0x93/0x100 [ 91.032768][ T9744] ? ns_capable+0x20/0x30 [ 91.037075][ T9744] ? __netlink_ns_capable+0x104/0x140 [ 91.042432][ T9744] nfnetlink_rcv+0x1ba/0x460 [ 91.046998][ T9744] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 91.052429][ T9744] ? netlink_deliver_tap+0x24a/0xbe0 [ 91.057693][ T9744] ? __kasan_check_write+0x14/0x20 [ 91.062793][ T9744] netlink_unicast+0x58c/0x7d0 [ 91.067541][ T9744] ? netlink_attachskb+0x870/0x870 [ 91.072629][ T9744] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 91.078337][ T9744] ? __check_object_size+0x3d/0x437 [ 91.083520][ T9744] netlink_sendmsg+0x91c/0xea0 [ 91.088262][ T9744] ? netlink_unicast+0x7d0/0x7d0 [ 91.093182][ T9744] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 91.098713][ T9744] ? apparmor_socket_sendmsg+0x2a/0x30 [ 91.104148][ T9744] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.110429][ T9744] ? security_socket_sendmsg+0x8d/0xc0 [ 91.115894][ T9744] ? netlink_unicast+0x7d0/0x7d0 [ 91.120817][ T9744] sock_sendmsg+0xd7/0x130 [ 91.125272][ T9744] ____sys_sendmsg+0x753/0x880 [ 91.130014][ T9744] ? kernel_sendmsg+0x50/0x50 [ 91.134669][ T9744] ? lockdep_init_map+0x1be/0x6d0 [ 91.139673][ T9744] ___sys_sendmsg+0x100/0x170 [ 91.144460][ T9744] ? sendmsg_copy_msghdr+0x70/0x70 [ 91.149556][ T9744] ? __kasan_check_read+0x11/0x20 [ 91.154607][ T9744] ? __lock_acquire+0x8a0/0x4a00 [ 91.159527][ T9744] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.165751][ T9744] ? __this_cpu_preempt_check+0x35/0x190 [ 91.171408][ T9744] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.177626][ T9744] ? percpu_counter_add_batch+0x13c/0x190 [ 91.183318][ T9744] ? __fd_install+0x1bc/0x640 [ 91.187975][ T9744] ? find_held_lock+0x35/0x130 [ 91.192715][ T9744] ? __fd_install+0x1bc/0x640 [ 91.197459][ T9744] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 91.203674][ T9744] ? __fget_light+0x1a9/0x230 [ 91.208328][ T9744] ? __fdget+0x1b/0x20 [ 91.212381][ T9744] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 91.218788][ T9744] __sys_sendmsg+0x105/0x1d0 [ 91.223361][ T9744] ? __sys_sendmsg_sock+0xc0/0xc0 [ 91.228370][ T9744] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 91.233815][ T9744] ? do_syscall_64+0x26/0x790 [ 91.238599][ T9744] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.244654][ T9744] ? do_syscall_64+0x26/0x790 [ 91.249328][ T9744] __x64_sys_sendmsg+0x78/0xb0 [ 91.254087][ T9744] do_syscall_64+0xfa/0x790 [ 91.258578][ T9744] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 91.264531][ T9744] RIP: 0033:0x440b49 [ 91.268416][ T9744] 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 [ 91.288123][ T9744] RSP: 002b:00007ffe8fd4aa08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 91.296527][ T9744] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440b49 [ 91.304482][ T9744] RDX: 0000000000000800 RSI: 00000000200001c0 RDI: 0000000000000004 [ 91.312442][ T9744] RBP: 00000000006cb018 R08: 0000000000000002 R09: 00000000004002c8 [ 91.320404][ T9744] R10: 0000000000000009 R11: 0000000000000246 R12: 00000000004023d0 [ 91.328354][ T9744] R13: 0000000000402460 R14: 0000000000000000 R15: 0000000000000000 [ 91.336350][ T9744] Modules linked in: [ 91.341227][ T9744] ---[ end trace c63fb46e02cd70a0 ]--- [ 91.346702][ T9744] RIP: 0010:hash_mac4_uadt+0x1bc/0x470 [ 91.352187][ T9744] Code: 11 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 5c 02 00 00 4c 89 f2 8b 48 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 1a [ 91.371821][ T9744] RSP: 0018:ffffc90007cb71b0 EFLAGS: 00010246 [ 91.377891][ T9744] RAX: dffffc0000000000 RBX: ffffc90007cb7320 RCX: 0000000008000000 [ 91.386032][ T9744] RDX: 0000000000000000 RSI: ffffffff867f5cd5 RDI: ffff888098417104 [ 91.394053][ T9744] RBP: ffffc90007cb72b8 R08: 0000000000000000 R09: 0000000000000000 [ 91.402042][ T9744] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff8880a789eb00 [ 91.410025][ T9744] R13: 1ffff92000f96e3a R14: 0000000000000000 R15: ffffc90007cb7200 [ 91.418006][ T9744] FS: 0000000001947880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 91.426923][ T9744] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 91.433571][ T9744] CR2: 0000000020000f98 CR3: 0000000094182000 CR4: 00000000001406f0 [ 91.441607][ T9744] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 91.451451][ T9744] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 91.459430][ T9744] Kernel panic - not syncing: Fatal exception in interrupt [ 91.467965][ T9744] Kernel Offset: disabled [ 91.472293][ T9744] Rebooting in 86400 seconds..