[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.172' (ECDSA) to the list of known hosts. syzkaller login: [ 67.693855][ T28] audit: type=1400 audit(1590620749.171:8): avc: denied { execmem } for pid=7050 comm="syz-executor403" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 executing program [ 67.739240][ T7051] IPVS: ftp: loaded support on port[0] = 21 [ 67.794114][ T7072] general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN [ 67.805907][ T7072] KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] [ 67.814327][ T7072] CPU: 0 PID: 7072 Comm: syz-executor403 Not tainted 5.7.0-rc7-syzkaller #0 [ 67.822964][ T7072] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.833000][ T7072] RIP: 0010:inet_unhash+0x11f/0x770 [ 67.838167][ T7072] Code: 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e dd 04 00 00 48 8d 7d 08 44 8b 73 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 55 05 00 00 48 8d 7d 14 4c 8b 6d 08 48 b8 00 00 [ 67.857741][ T7072] RSP: 0018:ffffc900015f7d30 EFLAGS: 00010202 [ 67.863776][ T7072] RAX: dffffc0000000000 RBX: ffff88809ffe9940 RCX: ffffffff86960a92 [ 67.871718][ T7072] RDX: 0000000000000001 RSI: ffffffff86960aa1 RDI: 0000000000000008 [ 67.879661][ T7072] RBP: 0000000000000000 R08: ffff888096a2e080 R09: fffffbfff1513311 [ 67.887640][ T7072] R10: ffffffff8a899887 R11: fffffbfff1513310 R12: ffff88809ffe99b0 [ 67.895581][ T7072] R13: 0000000000000007 R14: 0000000000000000 R15: ffffffff8737b890 [ 67.903524][ T7072] FS: 0000000001d58880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 67.912419][ T7072] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 67.918972][ T7072] CR2: 00000000006cd090 CR3: 0000000097d53000 CR4: 00000000001406f0 [ 67.926922][ T7072] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 67.934877][ T7072] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 67.942859][ T7072] Call Trace: [ 67.946128][ T7072] ? l2tp_ip_getname+0x360/0x360 [ 67.951035][ T7072] ? l2tp_ip_destroy_sock+0x260/0x260 [ 67.956381][ T7072] sk_common_release+0xba/0x370 [ 67.961206][ T7072] inet_create+0x966/0xe00 [ 67.965630][ T7072] __sock_create+0x3cb/0x730 [ 67.970191][ T7072] __sys_socket+0xef/0x200 [ 67.974578][ T7072] ? move_addr_to_kernel+0x70/0x70 [ 67.979661][ T7072] ? trace_hardirqs_off_caller+0x55/0x230 [ 67.985365][ T7072] __x64_sys_socket+0x6f/0xb0 [ 67.990012][ T7072] ? lockdep_hardirqs_on+0x463/0x620 [ 67.995266][ T7072] do_syscall_64+0xf6/0x7d0 [ 67.999744][ T7072] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 68.005605][ T7072] RIP: 0033:0x441e09 [ 68.009472][ T7072] Code: e8 fc b3 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 68.029043][ T7072] RSP: 002b:00007fffb7ef7308 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 [ 68.037423][ T7072] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441e09 [ 68.045391][ T7072] RDX: 0000000000000073 RSI: 0000000000000002 RDI: 0000000000000002 [ 68.053333][ T7072] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 68.061275][ T7072] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 68.069215][ T7072] R13: 0000000000402c10 R14: 0000000000000000 R15: 0000000000000000 [ 68.077174][ T7072] Modules linked in: [ 68.082530][ T7072] ---[ end trace 49f8cbeb68bcec58 ]--- [ 68.088568][ T7072] RIP: 0010:inet_unhash+0x11f/0x770 [ 68.093755][ T7072] Code: 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e dd 04 00 00 48 8d 7d 08 44 8b 73 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 55 05 00 00 48 8d 7d 14 4c 8b 6d 08 48 b8 00 00 [ 68.113394][ T7072] RSP: 0018:ffffc900015f7d30 EFLAGS: 00010202 [ 68.119598][ T7072] RAX: dffffc0000000000 RBX: ffff88809ffe9940 RCX: ffffffff86960a92 [ 68.127600][ T7072] RDX: 0000000000000001 RSI: ffffffff86960aa1 RDI: 0000000000000008 [ 68.135663][ T7072] RBP: 0000000000000000 R08: ffff888096a2e080 R09: fffffbfff1513311 [ 68.143985][ T7072] R10: ffffffff8a899887 R11: fffffbfff1513310 R12: ffff88809ffe99b0 [ 68.151994][ T7072] R13: 0000000000000007 R14: 0000000000000000 R15: ffffffff8737b890 [ 68.160000][ T7072] FS: 0000000001d58880(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 68.168945][ T7072] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 68.175515][ T7072] CR2: 00007f2ce4040018 CR3: 0000000097d53000 CR4: 00000000001406f0 [ 68.183637][ T7072] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 68.191634][ T7072] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 68.199633][ T7072] Kernel panic - not syncing: Fatal exception [ 68.206766][ T7072] Kernel Offset: disabled [ 68.211074][ T7072] Rebooting in 86400 seconds..