[?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. [ 18.072661] audit: type=1400 audit(1519506979.000:6): avc: denied { map } for pid=4211 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 '10.128.15.197' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 syzkaller login: [ 24.371847] audit: type=1400 audit(1519506985.299:7): avc: denied { map } for pid=4226 comm="syzkaller445662" path="/root/syzkaller445662212" 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 RTNETLINK answers: File exists RTNETLINK answers: File exists RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 24.990723] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument [ 25.344614] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 25.350719] 8021q: adding VLAN 0 to HW filter on device bond0 executing program [ 25.389227] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 25.428273] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 25.592664] IPv6: veth0: IPv6 duplicate address fe80::a used by aa:aa:aa:aa:00:0a detected! [ 25.896374] IPv6: veth1: IPv6 duplicate address fe80::a8aa:aaff:feaa:a used by aa:aa:aa:aa:00:0a detected! [ 30.688181] kasan: CONFIG_KASAN_INLINE enabled [ 30.692898] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.700497] general protection fault: 0000 [#1] SMP KASAN [ 30.706031] Dumping ftrace buffer: [ 30.709544] (ftrace buffer empty) [ 30.713235] Modules linked in: [ 30.716401] CPU: 0 PID: 4226 Comm: syzkaller445662 Not tainted 4.16.0-rc2+ #327 [ 30.723813] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.733145] RIP: 0010:kernel_sock_shutdown+0x29/0x70 [ 30.738217] RSP: 0018:ffff8801d017fcc8 EFLAGS: 00010206 [ 30.743550] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff846026f4 [ 30.750790] RDX: 0000000000000005 RSI: 0000000000000000 RDI: 0000000000000028 [ 30.758033] RBP: ffff8801d017fce0 R08: 0000000000000000 R09: 1ffff1003a02ff15 [ 30.765285] R10: ffff8801d017f870 R11: 0000000000000001 R12: ffff8801cb78f7d2 [ 30.772524] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801d017fd58 [ 30.779766] FS: 00000000021ea880(0000) GS:ffff8801db200000(0000) knlGS:0000000000000000 [ 30.787962] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 30.793816] CR2: 00007ff72aa9d000 CR3: 00000001b13ca001 CR4: 00000000001606f0 [ 30.801058] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.808746] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.815988] Call Trace: [ 30.818559] smc_shutdown+0x3ed/0x540 [ 30.822334] SyS_shutdown+0x137/0x290 [ 30.826103] ? SyS_listen+0x207/0x350 [ 30.829873] ? SyS_getsockopt+0x340/0x340 [ 30.833997] ? move_addr_to_kernel+0x60/0x60 [ 30.838383] ? do_syscall_64+0xb6/0x940 [ 30.842332] ? SyS_getsockopt+0x340/0x340 [ 30.846449] do_syscall_64+0x280/0x940 [ 30.850308] ? __do_page_fault+0xc90/0xc90 [ 30.854531] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 30.860040] ? syscall_return_slowpath+0x550/0x550 [ 30.864939] ? syscall_return_slowpath+0x2ac/0x550 [ 30.869840] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 30.875178] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.879993] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 30.885160] RIP: 0033:0x444d19 [ 30.888320] RSP: 002b:00007fff02d207f8 EFLAGS: 00000217 ORIG_RAX: 0000000000000030 [ 30.895995] RAX: ffffffffffffffda RBX: 00000000004a6650 RCX: 0000000000444d19 [ 30.903240] RDX: 0000000000444d19 RSI: 0000000000000000 RDI: 0000000000000004 [ 30.910479] RBP: 00007fff02d208c0 R08: 00000000004a6650 R09: 00000000004a6650 [ 30.917719] R10: 00000000004a6650 R11: 0000000000000217 R12: 00007fff02d208c0 [ 30.924959] R13: 0000000000402240 R14: 0000000000000000 R15: 0000000000000000 [ 30.932205] Code: 66 90 55 48 89 e5 41 55 41 54 53 48 89 fb 41 89 f5 e8 ac e5 10 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 [ 30.951275] RIP: kernel_sock_shutdown+0x29/0x70 RSP: ffff8801d017fcc8 [ 30.957910] ---[ end trace ab0af634d31032b4 ]--- [ 30.962677] Kernel panic - not syncing: Fatal exception [ 30.968538] Dumping ftrace buffer: [ 30.972060] (ftrace buffer empty) [ 30.975751] Kernel Offset: disabled [ 30.979356] Rebooting in 86400 seconds..