[ 82.606466][ T27] audit: type=1800 audit(1578430478.508:24): pid=9446 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="sudo" dev="sda1" ino=2454 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 83.297730][ T27] audit: type=1800 audit(1578430479.298:25): pid=9446 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 83.317800][ T27] audit: type=1800 audit(1578430479.298:26): pid=9446 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. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.63' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 94.015704][ T9600] kasan: CONFIG_KASAN_INLINE enabled [ 94.021126][ T9600] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 94.029306][ T9600] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 94.036332][ T9600] CPU: 0 PID: 9600 Comm: syz-executor087 Not tainted 5.5.0-rc4-syzkaller #0 [ 94.044989][ T9600] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 94.055163][ T9600] RIP: 0010:hash_ip6_uadt+0x1f2/0x670 [ 94.060514][ T9600] Code: 11 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 c2 03 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 80 [ 94.080100][ T9600] RSP: 0018:ffffc90001ec71b0 EFLAGS: 00010246 [ 94.086145][ T9600] RAX: dffffc0000000000 RBX: 1ffff920003d8e3a RCX: 0000000002000000 [ 94.094097][ T9600] RDX: 0000000000000000 RSI: ffffffff867cfe1b RDI: ffff8880a7d2d8e0 [ 94.102059][ T9600] RBP: ffffc90001ec72b8 R08: 0000000000000000 R09: 0000000000000000 [ 94.110008][ T9600] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffffc90001ec7320 [ 94.117962][ T9600] R13: ffff8880a7b3f300 R14: 0000000000000000 R15: ffffc90001ec7200 [ 94.125911][ T9600] FS: 000000000157d880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 94.134829][ T9600] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.141391][ T9600] CR2: 0000000020000058 CR3: 000000008c4fe000 CR4: 00000000001406f0 [ 94.149433][ T9600] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 94.157407][ T9600] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 94.165356][ T9600] Call Trace: [ 94.168629][ T9600] ? hash_ip_create+0xc10/0xc10 [ 94.173455][ T9600] ? hash_ip6_kadt+0x650/0x650 [ 94.178202][ T9600] ? nla_memcpy+0xb0/0xb0 [ 94.182513][ T9600] ? lock_acquire+0x190/0x410 [ 94.187183][ T9600] ? __kasan_check_read+0x11/0x20 [ 94.192187][ T9600] ip_set_utest+0x55b/0x890 [ 94.196685][ T9600] ? ip_set_put_byindex+0x490/0x490 [ 94.201866][ T9600] ? __mutex_lock+0x458/0x13c0 [ 94.206616][ T9600] ? ip_set_put_byindex+0x490/0x490 [ 94.211822][ T9600] nfnetlink_rcv_msg+0xcf2/0xfb0 [ 94.216962][ T9600] ? nfnetlink_bind+0x2c0/0x2c0 [ 94.221872][ T9600] ? __kasan_check_read+0x11/0x20 [ 94.226884][ T9600] ? __lock_acquire+0x8a0/0x4a00 [ 94.231807][ T9600] ? __kasan_check_read+0x11/0x20 [ 94.236828][ T9600] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.243057][ T9600] ? apparmor_capable+0x497/0x900 [ 94.248065][ T9600] ? __kasan_check_read+0x11/0x20 [ 94.253084][ T9600] ? apparmor_cred_prepare+0x7b0/0x7b0 [ 94.258637][ T9600] netlink_rcv_skb+0x177/0x450 [ 94.263385][ T9600] ? nfnetlink_bind+0x2c0/0x2c0 [ 94.268452][ T9600] ? netlink_ack+0xb50/0xb50 [ 94.273069][ T9600] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.279345][ T9600] ? ns_capable_common+0x93/0x100 [ 94.284618][ T9600] ? ns_capable+0x20/0x30 [ 94.288955][ T9600] ? __netlink_ns_capable+0x104/0x140 [ 94.298402][ T9600] nfnetlink_rcv+0x1ba/0x460 [ 94.302995][ T9600] ? nfnetlink_rcv_batch+0x17a0/0x17a0 [ 94.308458][ T9600] ? netlink_deliver_tap+0x24a/0xbe0 [ 94.313726][ T9600] ? __kasan_check_write+0x14/0x20 [ 94.318824][ T9600] netlink_unicast+0x58c/0x7d0 [ 94.323571][ T9600] ? netlink_attachskb+0x870/0x870 [ 94.328779][ T9600] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 94.334492][ T9600] netlink_sendmsg+0x91c/0xea0 [ 94.339242][ T9600] ? netlink_unicast+0x7d0/0x7d0 [ 94.344182][ T9600] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 94.349730][ T9600] ? apparmor_socket_sendmsg+0x2a/0x30 [ 94.355298][ T9600] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.361533][ T9600] ? security_socket_sendmsg+0x8d/0xc0 [ 94.367087][ T9600] ? netlink_unicast+0x7d0/0x7d0 [ 94.372004][ T9600] sock_sendmsg+0xd7/0x130 [ 94.376403][ T9600] ____sys_sendmsg+0x753/0x880 [ 94.381673][ T9600] ? kernel_sendmsg+0x50/0x50 [ 94.386327][ T9600] ? lockdep_init_map+0x1be/0x6d0 [ 94.391335][ T9600] ___sys_sendmsg+0x100/0x170 [ 94.396080][ T9600] ? sendmsg_copy_msghdr+0x70/0x70 [ 94.401177][ T9600] ? __kasan_check_read+0x11/0x20 [ 94.406189][ T9600] ? __lock_acquire+0x8a0/0x4a00 [ 94.411120][ T9600] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.417400][ T9600] ? __this_cpu_preempt_check+0x35/0x190 [ 94.423133][ T9600] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.429447][ T9600] ? percpu_counter_add_batch+0x13c/0x190 [ 94.435153][ T9600] ? __fd_install+0x1bc/0x640 [ 94.439819][ T9600] ? find_held_lock+0x35/0x130 [ 94.444576][ T9600] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 94.450807][ T9600] ? __fget_light+0x1a9/0x230 [ 94.455462][ T9600] ? __fdget+0x1b/0x20 [ 94.459511][ T9600] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 94.465813][ T9600] __sys_sendmsg+0x105/0x1d0 [ 94.470408][ T9600] ? __sys_sendmsg_sock+0xc0/0xc0 [ 94.475425][ T9600] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 94.480863][ T9600] ? do_syscall_64+0x26/0x790 [ 94.485533][ T9600] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.491823][ T9600] ? do_syscall_64+0x26/0x790 [ 94.496535][ T9600] __x64_sys_sendmsg+0x78/0xb0 [ 94.501284][ T9600] do_syscall_64+0xfa/0x790 [ 94.505781][ T9600] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 94.511660][ T9600] RIP: 0033:0x4403a9 [ 94.515544][ T9600] 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 [ 94.535215][ T9600] RSP: 002b:00007ffe1a59af08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 94.543626][ T9600] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004403a9 [ 94.551577][ T9600] RDX: 0000000020000000 RSI: 0000000020000180 RDI: 0000000000000004 [ 94.559530][ T9600] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 94.567478][ T9600] R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401c30 [ 94.575425][ T9600] R13: 0000000000401cc0 R14: 0000000000000000 R15: 0000000000000000 [ 94.583374][ T9600] Modules linked in: [ 94.587388][ T9600] ---[ end trace 082996518a64e647 ]--- [ 94.592856][ T9600] RIP: 0010:hash_ip6_uadt+0x1f2/0x670 [ 94.598257][ T9600] Code: 11 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 c2 03 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 80 [ 94.617875][ T9600] RSP: 0018:ffffc90001ec71b0 EFLAGS: 00010246 [ 94.623924][ T9600] RAX: dffffc0000000000 RBX: 1ffff920003d8e3a RCX: 0000000002000000 [ 94.631916][ T9600] RDX: 0000000000000000 RSI: ffffffff867cfe1b RDI: ffff8880a7d2d8e0 [ 94.639930][ T9600] RBP: ffffc90001ec72b8 R08: 0000000000000000 R09: 0000000000000000 [ 94.649510][ T9600] R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffffc90001ec7320 [ 94.657516][ T9600] R13: ffff8880a7b3f300 R14: 0000000000000000 R15: ffffc90001ec7200 [ 94.665507][ T9600] FS: 000000000157d880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 94.674436][ T9600] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 94.681054][ T9600] CR2: 0000000020000058 CR3: 000000008c4fe000 CR4: 00000000001406f0 [ 94.689062][ T9600] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 94.697065][ T9600] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 94.705048][ T9600] Kernel panic - not syncing: Fatal exception in interrupt [ 94.713742][ T9600] Kernel Offset: disabled [ 94.718071][ T9600] Rebooting in 86400 seconds..