[?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. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 22.186131] audit: type=1400 audit(1520862457.421:6): avc: denied { map } for pid=4189 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 [ 97.355749] sshd (4201) used greatest stack depth: 16312 bytes left Warning: Permanently added '10.128.0.40' (ECDSA) to the list of known hosts. [ 102.679565] audit: type=1400 audit(1520862537.915:7): avc: denied { map } for pid=4206 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2018/03/12 13:48:58 parsed 1 programs 2018/03/12 13:48:58 executed programs: 0 [ 102.916745] audit: type=1400 audit(1520862538.152:8): avc: denied { map } for pid=4206 comm="syz-execprog" path="/root/syzkaller-shm496304115" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 [ 102.943989] IPVS: ftp: loaded support on port[0] = 21 [ 102.970603] IPVS: ftp: loaded support on port[0] = 21 [ 102.996877] IPVS: ftp: loaded support on port[0] = 21 [ 103.026592] IPVS: ftp: loaded support on port[0] = 21 [ 103.053506] IPVS: ftp: loaded support on port[0] = 21 [ 103.088259] IPVS: ftp: loaded support on port[0] = 21 [ 103.117678] IPVS: ftp: loaded support on port[0] = 21 [ 103.153087] IPVS: ftp: loaded support on port[0] = 21 [ 105.711858] kasan: CONFIG_KASAN_INLINE enabled [ 105.716653] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 105.724074] general protection fault: 0000 [#1] SMP KASAN [ 105.729599] Dumping ftrace buffer: [ 105.733122] (ftrace buffer empty) [ 105.736816] Modules linked in: [ 105.739999] CPU: 1 PID: 6368 Comm: syz-executor6 Not tainted 4.16.0-rc5+ #261 [ 105.747262] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 105.756617] RIP: 0010:rdma_reject+0x37/0x220 [ 105.761029] RSP: 0018:ffff8801b5be78a8 EFLAGS: 00010206 [ 105.766380] RAX: dffffc0000000000 RBX: 1ffff10036b7cf1f RCX: ffffffff841bceff [ 105.773639] RDX: 0000000000000078 RSI: ffff8801b5be7920 RDI: 00000000000003c0 [ 105.780902] RBP: ffff8801b5be78d8 R08: 0000000000000000 R09: 0000000000000000 [ 105.788165] R10: ffffffff886133c0 R11: 0000000000000000 R12: 0000000000000000 [ 105.795426] R13: ffff8801b5be7a58 R14: ffff8801b5be7920 R15: 0000000000000000 [ 105.802687] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f7fabb40 [ 105.810902] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 105.816770] CR2: 000000000813b029 CR3: 00000001bfe35003 CR4: 00000000001606e0 [ 105.824022] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 105.831276] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 105.838540] Call Trace: [ 105.841124] ucma_reject+0x149/0x220 [ 105.844827] ? ucma_disconnect+0x150/0x150 [ 105.849054] ? kasan_check_write+0x14/0x20 [ 105.853271] ucma_write+0x2d6/0x3d0 [ 105.856871] ? ucma_disconnect+0x150/0x150 [ 105.861077] ? ucma_resolve_route+0x1a0/0x1a0 [ 105.865565] ? ucma_resolve_route+0x1a0/0x1a0 [ 105.870047] __vfs_write+0xef/0x970 [ 105.873647] ? rcu_note_context_switch+0x710/0x710 [ 105.878550] ? kernel_read+0x120/0x120 [ 105.882409] ? __might_sleep+0x95/0x190 [ 105.886359] ? _cond_resched+0x14/0x30 [ 105.890217] ? __inode_security_revalidate+0xd9/0x130 [ 105.895379] ? avc_policy_seqno+0x9/0x20 [ 105.899409] ? selinux_file_permission+0x82/0x460 [ 105.904227] ? security_file_permission+0x89/0x1e0 [ 105.909136] ? rw_verify_area+0xe5/0x2b0 [ 105.913172] ? __fdget_raw+0x20/0x20 [ 105.916860] vfs_write+0x189/0x510 [ 105.920372] SyS_write+0xef/0x220 [ 105.923793] ? filp_open+0x70/0x70 [ 105.927307] ? SyS_read+0x220/0x220 [ 105.930909] ? do_fast_syscall_32+0x156/0xf9f [ 105.935374] ? SyS_read+0x220/0x220 [ 105.938972] do_fast_syscall_32+0x3ec/0xf9f [ 105.943263] ? _raw_spin_unlock_irq+0x27/0x70 [ 105.947732] ? do_int80_syscall_32+0x9c0/0x9c0 [ 105.952283] ? _raw_spin_unlock_irq+0x27/0x70 [ 105.956753] ? finish_task_switch+0x1c1/0x7e0 [ 105.961220] ? syscall_return_slowpath+0x2ac/0x550 [ 105.966123] ? prepare_exit_to_usermode+0x350/0x350 [ 105.971111] ? sysret32_from_system_call+0x5/0x3c [ 105.975927] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 105.980757] entry_SYSENTER_compat+0x70/0x7f [ 105.985137] RIP: 0023:0xf7fd0c99 [ 105.988469] RSP: 002b:00000000f7fab09c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 105.996148] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00000000200001c0 [ 106.003391] RDX: 0000000000000008 RSI: 0000000000000000 RDI: 0000000000000000 [ 106.010630] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 106.017868] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 106.025107] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 106.032353] Code: 49 89 ff 53 41 89 d4 49 89 f6 48 83 ec 08 e8 a1 48 55 fd 49 8d bf c0 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 a0 01 00 00 4d 8b af c0 03 00 00 4d 85 ed 0f [ 106.051433] RIP: rdma_reject+0x37/0x220 RSP: ffff8801b5be78a8 [ 106.057408] ---[ end trace 300438edab445b5c ]--- [ 106.062177] Kernel panic - not syncing: Fatal exception [ 106.067925] Dumping ftrace buffer: [ 106.071447] (ftrace buffer empty) [ 106.075127] Kernel Offset: disabled [ 106.078726] Rebooting in 86400 seconds..