[?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. [ 17.267322] audit: type=1400 audit(1521832879.676:6): avc: denied { map } for pid=4212 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 '10.128.0.33' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 23.583339] audit: type=1400 audit(1521832885.992:7): avc: denied { map } for pid=4226 comm="syzkaller661955" path="/root/syzkaller661955065" 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 [ 23.609838] kasan: CONFIG_KASAN_INLINE enabled [ 23.614493] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 23.621856] general protection fault: 0000 [#1] SMP KASAN [ 23.627363] Dumping ftrace buffer: [ 23.630870] (ftrace buffer empty) [ 23.634549] Modules linked in: [ 23.637711] CPU: 1 PID: 4226 Comm: syzkaller661955 Not tainted 4.16.0-rc6+ #363 [ 23.645124] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.654455] RIP: 0010:rdma_init_qp_attr+0x8b/0x720 [ 23.659349] RSP: 0018:ffff8801bd7bf840 EFLAGS: 00010202 [ 23.664690] RAX: dffffc0000000000 RBX: ffff8801b0d94dc0 RCX: ffffffff841bbf8f [ 23.672449] RDX: 0000000000000029 RSI: ffff8801bd7bf9c8 RDI: 0000000000000148 [ 23.679689] RBP: ffff8801bd7bf880 R08: ffffed0037af7f4e R09: ffff8801bd7bf9cc [ 23.686926] R10: 0000000000000000 R11: ffffed0037af7f4d R12: ffff8801bd7bf9c8 [ 23.694164] R13: ffff8801bd7bf908 R14: 0000000000000000 R15: ffff8801bd7bf8c8 [ 23.701403] FS: 000000000242b880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 23.709596] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 23.715445] CR2: 000055b69e7c50b8 CR3: 00000001b1373003 CR4: 00000000001606e0 [ 23.722684] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 23.729924] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 23.737160] Call Trace: [ 23.739725] ucma_init_qp_attr+0x251/0x440 [ 23.743928] ? ucma_notify+0x1a0/0x1a0 [ 23.747788] ? find_held_lock+0x35/0x1d0 [ 23.751829] ? __might_fault+0x110/0x1d0 [ 23.755950] ? lock_downgrade+0x980/0x980 [ 23.760070] ? lock_release+0xa40/0xa40 [ 23.764030] ? check_same_owner+0x320/0x320 [ 23.768333] ? kasan_check_write+0x14/0x20 [ 23.772542] ucma_write+0x2d6/0x3d0 [ 23.776138] ? ucma_notify+0x1a0/0x1a0 [ 23.779994] ? ucma_close_id+0x60/0x60 [ 23.783860] ? ucma_close_id+0x60/0x60 [ 23.787714] __vfs_write+0xef/0x970 [ 23.791310] ? rcu_note_context_switch+0x710/0x710 [ 23.796210] ? kernel_read+0x120/0x120 [ 23.800067] ? __might_sleep+0x95/0x190 [ 23.804017] ? _cond_resched+0x14/0x30 [ 23.807877] ? __inode_security_revalidate+0xd9/0x130 [ 23.813040] ? avc_policy_seqno+0x9/0x20 [ 23.817071] ? selinux_file_permission+0x82/0x460 [ 23.821890] ? security_file_permission+0x89/0x1e0 [ 23.826791] ? rw_verify_area+0xe5/0x2b0 [ 23.830826] ? __fdget_raw+0x20/0x20 [ 23.834511] vfs_write+0x189/0x510 [ 23.838031] SyS_write+0xef/0x220 [ 23.841453] ? filp_open+0x70/0x70 [ 23.844964] ? SyS_read+0x220/0x220 [ 23.848560] ? do_syscall_64+0xb7/0x940 [ 23.852504] ? SyS_read+0x220/0x220 [ 23.856103] do_syscall_64+0x281/0x940 [ 23.859961] ? __do_page_fault+0xc90/0xc90 [ 23.864165] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 23.868894] ? syscall_return_slowpath+0x550/0x550 [ 23.873793] ? syscall_return_slowpath+0x2ac/0x550 [ 23.878692] ? prepare_exit_to_usermode+0x350/0x350 [ 23.883684] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 23.889042] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.893856] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 23.899018] RIP: 0033:0x43fdc9 [ 23.902179] RSP: 002b:00007fff37303d88 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 [ 23.909853] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fdc9 [ 23.917091] RDX: 0000000000000018 RSI: 0000000020000f40 RDI: 0000000000000003 [ 23.924331] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 23.931568] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004016f0 [ 23.938808] R13: 0000000000401780 R14: 0000000000000000 R15: 0000000000000000 [ 23.946056] Code: 00 00 00 fc ff df 80 3c 02 00 0f 85 8c 06 00 00 4c 8b 33 48 b8 00 00 00 00 00 fc ff df 49 8d be 48 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 5d 06 00 00 44 0f b6 7d d4 48 b8 00 00 00 00 [ 23.965130] RIP: rdma_init_qp_attr+0x8b/0x720 RSP: ffff8801bd7bf840 [ 23.971559] ---[ end trace c81a4f14497445a3 ]--- [ 23.976306] Kernel panic - not syncing: Fatal exception [ 23.982044] Dumping ftrace buffer: [ 23.985553] (ftrace buffer empty) [ 23.989231] Kernel Offset: disabled [ 23.992824] Rebooting in 86400 seconds..