[....] Starting enhanced syslogd: rsyslogd[ 16.060838] audit: type=1400 audit(1521831688.413:5): avc: denied { syslog } for pid=3943 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 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: [ 22.592475] audit: type=1400 audit(1521831694.945:6): avc: denied { map } for pid=4084 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 '10.128.0.8' (ECDSA) to the list of known hosts. executing program [ 28.998765] audit: type=1400 audit(1521831701.351:7): avc: denied { map } for pid=4098 comm="syzkaller148426" path="/root/syzkaller148426363" 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 [ 29.003766] kasan: CONFIG_KASAN_INLINE enabled [ 29.029649] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 29.037043] general protection fault: 0000 [#1] SMP KASAN [ 29.042556] Dumping ftrace buffer: [ 29.046068] (ftrace buffer empty) [ 29.049759] Modules linked in: [ 29.052931] CPU: 1 PID: 4098 Comm: syzkaller148426 Not tainted 4.16.0-rc6+ #363 [ 29.060351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.069688] RIP: 0010:rdma_init_qp_attr+0x8b/0x720 [ 29.074587] RSP: 0018:ffff8801cc797840 EFLAGS: 00010202 [ 29.079920] RAX: dffffc0000000000 RBX: ffff8801bb4976c0 RCX: ffffffff841bbf8f [ 29.087162] RDX: 0000000000000029 RSI: ffff8801cc7979c8 RDI: 0000000000000148 [ 29.094403] RBP: ffff8801cc797880 R08: ffffed00398f2f4e R09: ffff8801cc7979cc [ 29.101644] R10: 0000000000000000 R11: ffffed00398f2f4d R12: ffff8801cc7979c8 [ 29.108888] R13: ffff8801cc797908 R14: 0000000000000000 R15: ffff8801cc7978c8 [ 29.116132] FS: 00000000007b0880(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 29.124328] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 29.130183] CR2: 000055c67ffbb0f0 CR3: 00000001cc38a006 CR4: 00000000001606e0 [ 29.137427] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 29.144671] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 29.151914] Call Trace: [ 29.154481] ucma_init_qp_attr+0x251/0x440 [ 29.158688] ? ucma_notify+0x1a0/0x1a0 [ 29.162550] ? find_held_lock+0x35/0x1d0 [ 29.166589] ? __might_fault+0x110/0x1d0 [ 29.170624] ? lock_downgrade+0x980/0x980 [ 29.174745] ? lock_release+0xa40/0xa40 [ 29.178691] ? check_same_owner+0x320/0x320 [ 29.182997] ? kasan_check_write+0x14/0x20 [ 29.187207] ucma_write+0x2d6/0x3d0 [ 29.190804] ? ucma_notify+0x1a0/0x1a0 [ 29.194663] ? ucma_close_id+0x60/0x60 [ 29.198524] ? ucma_close_id+0x60/0x60 [ 29.202384] __vfs_write+0xef/0x970 [ 29.205986] ? rcu_note_context_switch+0x710/0x710 [ 29.210890] ? kernel_read+0x120/0x120 [ 29.214754] ? __might_sleep+0x95/0x190 [ 29.218711] ? _cond_resched+0x14/0x30 [ 29.222573] ? __inode_security_revalidate+0xd9/0x130 [ 29.227737] ? avc_policy_seqno+0x9/0x20 [ 29.231782] ? selinux_file_permission+0x82/0x460 [ 29.236600] ? security_file_permission+0x89/0x1e0 [ 29.241504] ? rw_verify_area+0xe5/0x2b0 [ 29.245534] ? __fdget_raw+0x20/0x20 [ 29.249218] vfs_write+0x189/0x510 [ 29.252732] SyS_write+0xef/0x220 [ 29.256153] ? filp_open+0x70/0x70 [ 29.259664] ? SyS_read+0x220/0x220 [ 29.263263] ? do_syscall_64+0xb7/0x940 [ 29.267208] ? SyS_read+0x220/0x220 [ 29.270804] do_syscall_64+0x281/0x940 [ 29.274663] ? __do_page_fault+0xc90/0xc90 [ 29.278871] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 29.283599] ? syscall_return_slowpath+0x550/0x550 [ 29.288497] ? syscall_return_slowpath+0x2ac/0x550 [ 29.293396] ? prepare_exit_to_usermode+0x350/0x350 [ 29.298385] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 29.303734] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.308551] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 29.313713] RIP: 0033:0x43fdc9 [ 29.316872] RSP: 002b:00007ffe0daacb28 EFLAGS: 00000217 ORIG_RAX: 0000000000000001 [ 29.324550] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fdc9 [ 29.331791] RDX: 0000000000000057 RSI: 0000000020000080 RDI: 0000000000000003 [ 29.339030] RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 [ 29.346273] R10: 00000000004002c8 R11: 0000000000000217 R12: 00000000004016f0 [ 29.353531] R13: 0000000000401780 R14: 0000000000000000 R15: 0000000000000000 [ 29.360782] 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 [ 29.379860] RIP: rdma_init_qp_attr+0x8b/0x720 RSP: ffff8801cc797840 [ 29.386276] ---[ end trace f0e61529df46d8ef ]--- [ 29.391016] Kernel panic - not syncing: Fatal exception [ 29.396747] Dumping ftrace buffer: [ 29.400258] (ftrace buffer empty) [ 29.403942] Kernel Offset: disabled [ 29.407538] Rebooting in 86400 seconds..