INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 '10.128.0.11' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 47.693120] kasan: CONFIG_KASAN_INLINE enabled [ 47.697806] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 47.705328] general protection fault: 0000 [#1] SMP KASAN [ 47.710849] Dumping ftrace buffer: [ 47.714365] (ftrace buffer empty) [ 47.718056] Modules linked in: [ 47.721234] CPU: 0 PID: 4455 Comm: syz-executor060 Not tainted 4.17.0-rc1+ #17 [ 47.728571] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.737914] RIP: 0010:smc_set_keepalive+0x4e/0xd0 [ 47.742734] RSP: 0018:ffff8801ced8fa68 EFLAGS: 00010202 [ 47.748076] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff85d72bcb [ 47.755333] RDX: 0000000000000004 RSI: ffffffff873f0a94 RDI: 0000000000000020 [ 47.762582] RBP: ffff8801ced8fa80 R08: ffff8801b67e44c0 R09: 0000000000000006 [ 47.769831] R10: ffff8801b67e44c0 R11: 0000000000000000 R12: ffff8801b6bff7c0 [ 47.777086] R13: 0000000000000001 R14: 0000000000000003 R15: ffff8801aee2b540 [ 47.784339] FS: 00000000009e4880(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 [ 47.792548] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.798414] CR2: 0000000020000040 CR3: 00000001b6e75000 CR4: 00000000001406f0 [ 47.805674] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.812931] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.820189] Call Trace: [ 47.822772] ? calipso_cache_add+0x140/0x140 [ 47.827161] sock_setsockopt+0x14e2/0x1fe0 [ 47.831375] ? sock_enable_timestamp+0xe0/0xe0 [ 47.835951] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.841467] ? __fget_light+0x2ef/0x430 [ 47.845425] ? fget_raw+0x20/0x20 [ 47.848858] ? lock_downgrade+0x8e0/0x8e0 [ 47.852988] ? handle_mm_fault+0x8c0/0xc70 [ 47.857205] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 47.862717] ? handle_mm_fault+0x55a/0xc70 [ 47.866933] ? security_socket_setsockopt+0x94/0xc0 [ 47.871930] __sys_setsockopt+0x2df/0x390 [ 47.876057] ? kernel_accept+0x310/0x310 [ 47.880098] ? mm_fault_error+0x380/0x380 [ 47.884222] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.889743] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 47.894562] __x64_sys_setsockopt+0xbe/0x150 [ 47.898950] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 47.903945] do_syscall_64+0x1b1/0x800 [ 47.907821] ? syscall_return_slowpath+0x5c0/0x5c0 [ 47.912728] ? syscall_return_slowpath+0x30f/0x5c0 [ 47.917639] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 47.923153] ? retint_user+0x18/0x18 [ 47.926854] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 47.931685] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 47.936850] RIP: 0033:0x43fcf9 [ 47.940017] RSP: 002b:00007ffe62977a78 EFLAGS: 00000217 ORIG_RAX: 0000000000000036 [ 47.947703] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fcf9 [ 47.954948] RDX: 0000000000000009 RSI: 0000000000000001 RDI: 0000000000000003 [ 47.962196] RBP: 00000000006ca018 R08: 0000000000000004 R09: 00000000004002c8 [ 47.969443] R10: 0000000020000040 R11: 0000000000000217 R12: 0000000000401620 [ 47.976693] R13: 00000000004016b0 R14: 0000000000000000 R15: 0000000000000000 [ 47.983944] Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 78 48 8b 9b 50 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 20 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 6b 48 b8 00 00 00 00 00 fc ff df 48 8b 5b 20 48 [ 48.003083] RIP: smc_set_keepalive+0x4e/0xd0 RSP: ffff8801ced8fa68 [ 48.009477] ---[ end trace a76f9ed0fb111068 ]--- [ 48.014234] Kernel panic - not syncing: Fatal exception [ 48.019973] Dumping ftrace buffer: [ 48.023491] (ftrace buffer empty) [ 48.027177] Kernel Offset: disabled [ 48.030783] Rebooting in 86400 seconds..