[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 18.711375] audit: type=1400 audit(1520702205.321:6): avc: denied { map } for pid=4236 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.41' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.033070] audit: type=1400 audit(1520702211.642:7): avc: denied { map } for pid=4250 comm="syzkaller496570" path="/root/syzkaller496570310" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 30.176128] kasan: CONFIG_KASAN_INLINE enabled [ 30.180845] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.188235] general protection fault: 0000 [#1] SMP KASAN [ 30.193751] Dumping ftrace buffer: [ 30.197262] (ftrace buffer empty) [ 30.200942] Modules linked in: [ 30.204108] CPU: 1 PID: 4250 Comm: syzkaller496570 Not tainted 4.16.0-rc4+ #348 [ 30.211523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.220853] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.225923] RSP: 0018:ffff8801d2997cc8 EFLAGS: 00010206 [ 30.231255] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff845fd6f4 [ 30.238494] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.245737] RBP: ffff8801d2997ce0 R08: 0000000000000000 R09: 1ffff1003a532f15 [ 30.252977] R10: ffff8801d2997870 R11: 0000000000000001 R12: ffff8801d6f077d2 [ 30.260215] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801d2997d58 [ 30.267455] FS: 0000000001c32880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 30.275649] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.281497] CR2: 00007f62d3390000 CR3: 00000001b1835004 CR4: 00000000001606e0 [ 30.288736] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.295974] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.303210] Call Trace: [ 30.305772] smc_shutdown+0x3ed/0x540 [ 30.309549] SyS_shutdown+0x137/0x290 [ 30.313324] ? SyS_getsockopt+0x340/0x340 [ 30.317447] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.322952] ? do_syscall_64+0xb7/0x940 [ 30.326898] ? SyS_getsockopt+0x340/0x340 [ 30.331017] do_syscall_64+0x281/0x940 [ 30.334877] ? __do_page_fault+0xc90/0xc90 [ 30.339079] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 30.343804] ? syscall_return_slowpath+0x550/0x550 [ 30.348702] ? syscall_return_slowpath+0x2ac/0x550 [ 30.353598] ? prepare_exit_to_usermode+0x350/0x350 [ 30.358589] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 30.363922] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.368737] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.373896] RIP: 0033:0x43fce9 [ 30.377052] RSP: 002b:00007fffb3089b98 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 30.384725] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fce9 [ 30.391964] RDX: 000000000043fce9 RSI: 0000000000000000 RDI: 0000000000000003 [ 30.399208] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 30.406445] R10: 00000000004002c8 R11: 0000000000000217 R12: 0000000000401610 [ 30.413685] R13: 00000000004016a0 R14: 0000000000000000 R15: 0000000000000000 [ 30.420933] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 5c 2f 11 fd 48 8d 7b 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 32 4c 8b 63 28 48 b8 00 00 00 00 00 fc ff df 49 [ 30.440012] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801d2997cc8 [ 30.446629] ---[ end trace 933f6d600a468ebb ]--- [ 30.451380] Kernel panic - not syncing: Fatal exception [ 30.457141] Dumping ftrace buffer: [ 30.460651] (ftrace buffer empty) [ 30.464328] Kernel Offset: disabled [ 30.467922] Rebooting in 86400 seconds..