[....] Starting enhanced syslogd: rsyslogd[ 4.863549] audit: type=1400 audit(1513468128.323:5): avc: denied { syslog } for pid=2965 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 6.745478] audit: type=1400 audit(1513468130.205:6): avc: denied { map } for pid=3105 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 Warning: Permanently added 'ci-upstream-next-kasan-gce-1,10.128.0.24' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.627293] audit: type=1400 audit(1513468150.087:7): avc: denied { map } for pid=3124 comm="syzkaller229828" path="/root/syzkaller229828185" 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 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.764402] alloc_fd: slot 80 not NULL! [ 26.770231] BUG: unable to handle kernel paging request at ffffffffffffffff [ 26.774073] alloc_fd: slot 81 not NULL! [ 26.775480] alloc_fd: slot 82 not NULL! [ 26.776732] alloc_fd: slot 83 not NULL! [ 26.777999] alloc_fd: slot 84 not NULL! [ 26.780510] alloc_fd: slot 86 not NULL! [ 26.781745] alloc_fd: slot 87 not NULL! [ 26.800919] IP: socket_file_ops+0x22/0x4d0 [ 26.805115] PGD 3021067 P4D 3021067 PUD 3023067 PMD 0 [ 26.810359] Oops: 0002 [#1] SMP executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 26.813603] Dumping ftrace buffer: [ 26.817103] (ftrace buffer empty) [ 26.820778] Modules linked in: [ 26.823936] CPU: 1 PID: 3358 Comm: cryptomgr_test Not tainted 4.15.0-rc3-next-20171214+ #67 [ 26.832387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.841707] RIP: 0010:socket_file_ops+0x22/0x4d0 [ 26.846422] RSP: 0018:ffffc900017fbdf0 EFLAGS: 00010246 [ 26.851747] RAX: ffff880214e4ca00 RBX: ffff8802156c74a0 RCX: ffffffff81678ac3 [ 26.858990] RDX: 0000000000000000 RSI: ffff8802156c74a0 RDI: ffff8802156c74a0 [ 26.866222] RBP: ffffc900017fbe18 R08: 0000000000000000 R09: 0000000000000000 [ 26.873455] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 26.880688] R13: ffffc900017fbeb0 R14: ffffc900017fbeb0 R15: ffffc900017fbeb0 [ 26.887922] FS: 0000000000000000(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 [ 26.896111] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 26.901955] CR2: ffffffffffffffff CR3: 000000000301e002 CR4: 00000000001606e0 [ 26.909188] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.916421] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.923652] Call Trace: [ 26.926213] ? crypto_aead_free_instance+0x33/0x50 [ 26.931104] ? crypto_aead_free_instance+0x40/0x50 [ 26.935994] ? aead_register_instance+0x90/0x90 [ 26.940624] crypto_free_instance+0x2a/0x50 [ 26.944907] crypto_destroy_instance+0x1e/0x30 [ 26.949450] ? crypto_free_instance+0x50/0x50 [ 26.953906] crypto_remove_final+0x73/0xa0 [ 26.958101] crypto_alg_tested+0x194/0x260 [ 26.962300] cryptomgr_test+0x17/0x30 [ 26.966064] kthread+0x149/0x170 [ 26.969391] ? crypto_acomp_scomp_free_ctx+0x40/0x40 [ 26.974453] ? kthread_delayed_work_timer_fn+0xe0/0xe0 [ 26.979692] ret_from_fork+0x24/0x30 [ 26.983368] Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 50 51 40 81 ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 f8 <09> 82 ff ff ff ff 00 26 0a 82 ff ff ff ff 00 00 00 00 00 00 00 [ 27.002393] RIP: socket_file_ops+0x22/0x4d0 RSP: ffffc900017fbdf0 [ 27.008582] CR2: ffffffffffffffff [ 27.012000] ---[ end trace 52c47d77c1a058d5 ]--- [ 27.012004] BUG: unable to handle kernel NULL pointer dereference at 0000000000000064 [ 27.012014] IP: __neigh_event_send+0xa8/0x400 [ 27.012016] PGD 0 P4D 0 [ 27.012020] Oops: 0000 [#2] SMP [ 27.012023] Dumping ftrace buffer: [ 27.012025] (ftrace buffer empty) [ 27.012025] Modules linked in: [ 27.012030] CPU: 0 PID: 3122 Comm: sshd Tainted: G D 4.15.0-rc3-next-20171214+ #67 [ 27.012032] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 27.012035] RIP: 0010:__neigh_event_send+0xa8/0x400 [ 27.012037] RSP: 0018:ffffc90000efb8b8 EFLAGS: 00010293 [ 27.012039] RAX: ffff880214dba640 RBX: ffff8802156c4c00 RCX: ffffffff820e6fa4 [ 27.012041] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8802156c4c28 [ 27.012043] RBP: ffffc90000efb8f8 R08: 0000000000000001 R09: ffffffff820e6f28 [ 27.012044] R10: ffffc90000efb828 R11: 0000000000000000 R12: ffff8802156c4c28 [ 27.012046] R13: ffff8802115896e0 R14: 0000000000000000 R15: ffffffff82e2eaf8 [ 27.012049] FS: 00007f838bacb7c0(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 [ 27.012050] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 27.012052] CR2: 0000000000000064 CR3: 0000000213530006 CR4: 00000000001606f0 [ 27.012056] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 27.012058] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 27.012058] Call Trace: [ 27.012066] ? lock_acquire+0xbf/0x220 [ 27.012070] neigh_resolve_output+0x24a/0x340 [ 27.012077] ip_finish_output2+0x2cf/0x7b0 [ 27.012081] ip_finish_output+0x2e6/0x490 [ 27.012084] ? ip_finish_output+0x2e6/0x490 [ 27.012087] ip_output+0x73/0x2b0 [ 27.012091] ? ip_fragment.constprop.49+0xd0/0xd0 [ 27.012095] ip_local_out+0x54/0xb0 [ 27.012099] ip_queue_xmit+0x27d/0x740 [ 27.012103] ? __tcp_v4_send_check+0xed/0x100 [ 27.012108] tcp_transmit_skb+0x66a/0xd70 [ 27.012113] tcp_write_xmit+0x262/0x13a0 [ 27.012119] __tcp_push_pending_frames+0x49/0xe0 [ 27.012122] tcp_push+0x14e/0x190 [ 27.012127] tcp_sendmsg_locked+0x899/0x11a0 [ 27.012134] tcp_sendmsg+0x2f/0x50 [ 27.012139] inet_sendmsg+0x54/0x250 [ 27.012145] ? security_socket_sendmsg+0x5d/0x80 [ 27.012151] sock_sendmsg+0x51/0x70 [ 27.012155] sock_write_iter+0xa4/0x100 [ 27.012163] __vfs_write+0x15b/0x1e0 [ 27.012169] vfs_write+0xf0/0x230 [ 27.012174] SyS_write+0x57/0xd0 [ 27.012178] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 27.012181] RIP: 0033:0x7f8389e66370 [ 27.012182] RSP: 002b:00007ffe535b0318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 27.012185] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8389e66370 [ 27.012186] RDX: 0000000000000038 RSI: 0000562088cb2460 RDI: 0000000000000003 [ 27.012188] RBP: 0000000000000001 R08: 0000000000000001 R09: 0101010101010101 [ 27.012190] R10: 0000000000000008 R11: 0000000000000246 R12: 0000562088cbe590 [ 27.012191] R13: 0000562088167fb4 R14: 0000000000000028 R15: 0000562088169ca0 [ 27.012196] Code: ff 48 83 c4 18 44 89 e8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 ab 33 1d ff 41 f6 c6 05 0f 85 68 01 00 00 e8 9c 33 1d ff 4c 8b 73 10 <41> 8b 46 64 41 03 46 5c 0f 84 a8 01 00 00 e8 85 33 1d ff 48 8b [ 27.012247] RIP: __neigh_event_send+0xa8/0x400 RSP: ffffc90000efb8b8 [ 27.012248] CR2: 0000000000000064 [ 27.012252] ---[ end trace 52c47d77c1a058d6 ]--- [ 27.012254] Kernel panic - not syncing: Fatal exception in interrupt [ 28.089577] Shutting down cpus with NMI [ 28.094200] Dumping ftrace buffer: [ 28.097702] (ftrace buffer empty) [ 28.101378] Kernel Offset: disabled [ 28.104969] Rebooting in 86400 seconds..