[ 94.813993][ T27] audit: type=1800 audit(1578467666.990:26): pid=9635 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. [ 95.628971][ T27] kauditd_printk_skb: 2 callbacks suppressed [ 95.628985][ T27] audit: type=1800 audit(1578467667.820:29): pid=9635 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 [ 95.656456][ T27] audit: type=1800 audit(1578467667.830:30): pid=9635 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 '10.128.1.25' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 122.775072][ T9787] kasan: CONFIG_KASAN_INLINE enabled [ 122.780572][ T9787] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 122.788692][ T9787] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 122.795636][ T9787] CPU: 0 PID: 9787 Comm: syz-executor904 Not tainted 5.5.0-rc5-syzkaller #0 [ 122.804294][ T9787] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 122.814345][ T9787] RIP: 0010:hash_ip4_uadt+0x1f5/0x7a0 [ 122.819694][ T9787] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 10 05 00 00 48 89 da 45 8b 7f 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ec [ 122.839277][ T9787] RSP: 0018:ffffc90001cf7190 EFLAGS: 00010246 [ 122.845323][ T9787] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 122.853458][ T9787] RDX: 0000000000000000 RSI: ffffffff86790b92 RDI: ffff88809a30b0f4 [ 122.861413][ T9787] RBP: ffffc90001cf72b8 R08: 0000000000000000 R09: 0000000000000000 [ 122.869365][ T9787] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff8880a3c7e900 [ 122.877316][ T9787] R13: ffffc90001cf7320 R14: 0000000000000002 R15: 000000009b000000 [ 122.885269][ T9787] FS: 0000000001593880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 122.894182][ T9787] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 122.900839][ T9787] CR2: 0000000020000446 CR3: 0000000090b17000 CR4: 00000000001406f0 [ 122.908800][ T9787] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 122.916761][ T9787] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 122.924709][ T9787] Call Trace: [ 122.928001][ T9787] ? hash_ip6_test+0x670/0x670 [ 122.932767][ T9787] ? hash_ip6_uadt+0x670/0x670 [ 122.937520][ T9787] ? nla_memcpy+0xb0/0xb0 [ 122.941833][ T9787] ? ip_set_utest+0x4aa/0x890 [ 122.946645][ T9787] ? __kasan_check_read+0x11/0x20 [ 122.951668][ T9787] ip_set_utest+0x55b/0x890 [ 122.956174][ T9787] ? ip_set_put_byindex+0x490/0x490 [ 122.961375][ T9787] ? __mutex_lock+0x458/0x13c0 [ 122.966200][ T9787] ? ip_set_put_byindex+0x490/0x490 [ 122.971514][ T9787] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 122.976473][ T9787] ? nfnetlink_bind+0x2c0/0x2c0 [ 122.981309][ T9787] ? __kasan_check_read+0x11/0x20 [ 122.986485][ T9787] ? __lock_acquire+0x8a0/0x4a00 [ 122.991400][ T9787] ? save_stack+0x5c/0x90 [ 122.995722][ T9787] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 123.001950][ T9787] ? apparmor_capable+0x497/0x900 [ 123.006952][ T9787] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 123.013173][ T9787] ? __kasan_check_read+0x11/0x20 [ 123.018187][ T9787] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 123.023631][ T9787] netlink_rcv_skb+0x177/0x450 [ 123.028400][ T9787] ? nfnetlink_bind+0x2c0/0x2c0 [ 123.033396][ T9787] ? netlink_ack+0xb50/0xb50 [ 123.038028][ T9787] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 123.044255][ T9787] ? ns_capable_common+0x93/0x100 [ 123.049259][ T9787] ? ns_capable+0x20/0x30 [ 123.053586][ T9787] ? __netlink_ns_capable+0x104/0x140 [ 123.058937][ T9787] nfnetlink_rcv+0x1ba/0x460 [ 123.063554][ T9787] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 123.069036][ T9787] ? netlink_deliver_tap+0x24a/0xbe0 [ 123.074336][ T9787] ? __kasan_check_write+0x14/0x20 [ 123.079435][ T9787] netlink_unicast+0x58c/0x7d0 [ 123.084177][ T9787] ? netlink_attachskb+0x870/0x870 [ 123.089282][ T9787] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 123.094982][ T9787] ? __check_object_size+0x3d/0x437 [ 123.100159][ T9787] netlink_sendmsg+0x91c/0xea0 [ 123.104913][ T9787] ? netlink_unicast+0x7d0/0x7d0 [ 123.119227][ T9787] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 123.124753][ T9787] ? apparmor_socket_sendmsg+0x2a/0x30 [ 123.130192][ T9787] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 123.136422][ T9787] ? security_socket_sendmsg+0x8d/0xc0 [ 123.141860][ T9787] ? netlink_unicast+0x7d0/0x7d0 [ 123.146856][ T9787] sock_sendmsg+0xd7/0x130 [ 123.151301][ T9787] ____sys_sendmsg+0x753/0x880 [ 123.156079][ T9787] ? kernel_sendmsg+0x50/0x50 [ 123.160744][ T9787] ? lockdep_init_map+0x1be/0x6d0 [ 123.165764][ T9787] ___sys_sendmsg+0x100/0x170 [ 123.170423][ T9787] ? sendmsg_copy_msghdr+0x70/0x70 [ 123.175514][ T9787] ? __kasan_check_read+0x11/0x20 [ 123.180526][ T9787] ? __lock_acquire+0x8a0/0x4a00 [ 123.185462][ T9787] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 123.191922][ T9787] ? __this_cpu_preempt_check+0x35/0x190 [ 123.197632][ T9787] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 123.203914][ T9787] ? percpu_counter_add_batch+0x13c/0x190 [ 123.209619][ T9787] ? __fd_install+0x1bc/0x640 [ 123.214282][ T9787] ? find_held_lock+0x35/0x130 [ 123.219139][ T9787] ? __fd_install+0x1bc/0x640 [ 123.223827][ T9787] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 123.230107][ T9787] ? __fget_light+0x1a9/0x230 [ 123.234814][ T9787] ? __fdget+0x1b/0x20 [ 123.238878][ T9787] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 123.245103][ T9787] __sys_sendmsg+0x105/0x1d0 [ 123.249673][ T9787] ? __sys_sendmsg_sock+0xc0/0xc0 [ 123.254683][ T9787] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 123.260128][ T9787] ? do_syscall_64+0x26/0x790 [ 123.264799][ T9787] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 123.270874][ T9787] ? do_syscall_64+0x26/0x790 [ 123.275600][ T9787] __x64_sys_sendmsg+0x78/0xb0 [ 123.280379][ T9787] do_syscall_64+0xfa/0x790 [ 123.284877][ T9787] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 123.290753][ T9787] RIP: 0033:0x440be9 [ 123.294680][ T9787] 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 [ 123.314272][ T9787] RSP: 002b:00007ffc50bced78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 123.322660][ T9787] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440be9 [ 123.330618][ T9787] RDX: 0000000000000000 RSI: 0000000020000500 RDI: 0000000000000004 [ 123.338565][ T9787] RBP: 00000000006cb018 R08: 0000000000000014 R09: 00000000004002c8 [ 123.346513][ T9787] R10: 0000000000000018 R11: 0000000000000246 R12: 0000000000402470 [ 123.354472][ T9787] R13: 0000000000402500 R14: 0000000000000000 R15: 0000000000000000 [ 123.362434][ T9787] Modules linked in: [ 123.366366][ T9787] ---[ end trace 06ddd11c5d352167 ]--- [ 123.371835][ T9787] RIP: 0010:hash_ip4_uadt+0x1f5/0x7a0 [ 123.377230][ T9787] Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 10 05 00 00 48 89 da 45 8b 7f 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 ec [ 123.396848][ T9787] RSP: 0018:ffffc90001cf7190 EFLAGS: 00010246 [ 123.402927][ T9787] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 123.410918][ T9787] RDX: 0000000000000000 RSI: ffffffff86790b92 RDI: ffff88809a30b0f4 [ 123.418934][ T9787] RBP: ffffc90001cf72b8 R08: 0000000000000000 R09: 0000000000000000 [ 123.426943][ T9787] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff8880a3c7e900 [ 123.434932][ T9787] R13: ffffc90001cf7320 R14: 0000000000000002 R15: 000000009b000000 [ 123.442938][ T9787] FS: 0000000001593880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 123.451855][ T9787] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 123.458452][ T9787] CR2: 0000000020000446 CR3: 0000000090b17000 CR4: 00000000001406f0 [ 123.466714][ T9787] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 123.474707][ T9787] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 123.482775][ T9787] Kernel panic - not syncing: Fatal exception in interrupt [ 123.491425][ T9787] Kernel Offset: disabled [ 123.495760][ T9787] Rebooting in 86400 seconds..