[?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. [ 18.074968] audit: type=1400 audit(1520446049.334:6): avc: denied { map } for pid=4180 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 '10.128.0.5' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 24.404474] audit: type=1400 audit(1520446055.664:7): avc: denied { map } for pid=4194 comm="syzkaller824739" path="/root/syzkaller824739928" 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 [ 24.431182] kasan: CONFIG_KASAN_INLINE enabled [ 24.435825] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 24.443202] general protection fault: 0000 [#1] SMP KASAN [ 24.448721] Dumping ftrace buffer: [ 24.452231] (ftrace buffer empty) [ 24.455911] Modules linked in: [ 24.459082] CPU: 1 PID: 4194 Comm: syzkaller824739 Not tainted 4.16.0-rc4+ #344 [ 24.466497] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.475828] RIP: 0010:rdma_init_qp_attr+0x8b/0x720 [ 24.480722] RSP: 0018:ffff8801d2f7f840 EFLAGS: 00010202 [ 24.486056] RAX: dffffc0000000000 RBX: ffff8801b9e2c040 RCX: ffffffff841b86bf [ 24.493294] RDX: 0000000000000029 RSI: ffff8801d2f7f9c8 RDI: 0000000000000148 [ 24.500534] RBP: ffff8801d2f7f880 R08: ffffed003a5eff4e R09: ffff8801d2f7f9cc [ 24.507772] R10: 0000000000000000 R11: ffffed003a5eff4d R12: ffff8801d2f7f9c8 [ 24.515015] R13: ffff8801d2f7f908 R14: 0000000000000000 R15: ffff8801d2f7f908 [ 24.522257] FS: 00000000010bb880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 24.530449] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 24.536299] CR2: 0000560443e860a8 CR3: 00000001b9369004 CR4: 00000000001606e0 [ 24.543541] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 24.550778] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 24.558019] Call Trace: [ 24.560588] ucma_init_qp_attr+0x20b/0x3e0 [ 24.564793] ? ucma_notify+0x1a0/0x1a0 [ 24.568652] ? find_held_lock+0x35/0x1d0 [ 24.572705] ? __might_fault+0x110/0x1d0 [ 24.576738] ? lock_downgrade+0x980/0x980 [ 24.580856] ? lock_release+0xa40/0xa40 [ 24.584802] ? check_same_owner+0x320/0x320 [ 24.589100] ? kasan_check_write+0x14/0x20 [ 24.593308] ucma_write+0x2d6/0x3d0 [ 24.596905] ? ucma_notify+0x1a0/0x1a0 [ 24.600762] ? ucma_resolve_route+0x1a0/0x1a0 [ 24.605237] ? ucma_resolve_route+0x1a0/0x1a0 [ 24.609704] __vfs_write+0xef/0x970 [ 24.613301] ? rcu_note_context_switch+0x710/0x710 [ 24.618199] ? kernel_read+0x120/0x120 [ 24.622058] ? __might_sleep+0x95/0x190 [ 24.626007] ? _cond_resched+0x14/0x30 [ 24.629870] ? __inode_security_revalidate+0xd9/0x130 [ 24.635033] ? avc_policy_seqno+0x9/0x20 [ 24.639063] ? selinux_file_permission+0x82/0x460 [ 24.643881] ? security_file_permission+0x89/0x1e0 [ 24.648781] ? rw_verify_area+0xe5/0x2b0 [ 24.652812] ? __fdget_raw+0x20/0x20 [ 24.656499] vfs_write+0x189/0x510 [ 24.660016] SyS_write+0xef/0x220 [ 24.663440] ? filp_open+0x70/0x70 [ 24.666952] ? SyS_read+0x220/0x220 [ 24.670552] ? do_syscall_64+0xb7/0x940 [ 24.674494] ? SyS_read+0x220/0x220 [ 24.678092] do_syscall_64+0x281/0x940 [ 24.681952] ? __do_page_fault+0xc90/0xc90 [ 24.686157] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 24.690892] ? syscall_return_slowpath+0x550/0x550 [ 24.695795] ? syscall_return_slowpath+0x2ac/0x550 [ 24.700694] ? prepare_exit_to_usermode+0x350/0x350 [ 24.705679] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 24.711018] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.715836] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 24.720999] RIP: 0033:0x43fdc9 [ 24.724164] RSP: 002b:00007ffdb4873648 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 [ 24.731842] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fdc9 [ 24.739081] RDX: 0000000000000018 RSI: 0000000020000040 RDI: 0000000000000003 [ 24.746318] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 24.753562] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004016f0 [ 24.760801] R13: 0000000000401780 R14: 0000000000000000 R15: 0000000000000000 [ 24.768062] 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 [ 24.787129] RIP: rdma_init_qp_attr+0x8b/0x720 RSP: ffff8801d2f7f840 [ 24.793598] ---[ end trace 4ae888ed80f7b750 ]--- [ 24.798372] Kernel panic - not syncing: Fatal exception [ 24.804150] Dumping ftrace buffer: [ 24.807669] (ftrace buffer empty) [ 24.811347] Kernel Offset: disabled [ 24.814942] Rebooting in 86400 seconds..