[....] Starting enhanced syslogd: rsyslogd[ 16.874805] audit: type=1400 audit(1521615308.763:5): avc: denied { syslog } for pid=4088 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: [ 19.394969] audit: type=1400 audit(1521615311.283:6): avc: denied { map } for pid=4226 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 '10.128.0.34' (ECDSA) to the list of known hosts. executing program [ 25.739149] audit: type=1400 audit(1521615317.627:7): avc: denied { map } for pid=4240 comm="syzkaller468044" path="/root/syzkaller468044973" 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 [ 25.781122] kasan: CONFIG_KASAN_INLINE enabled [ 25.785855] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 25.793273] general protection fault: 0000 [#1] SMP KASAN [ 25.798792] Dumping ftrace buffer: [ 25.802305] (ftrace buffer empty) [ 25.805986] Modules linked in: [ 25.809153] CPU: 1 PID: 4244 Comm: syzkaller468044 Not tainted 4.16.0-rc6+ #361 [ 25.816566] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.825894] RIP: 0010:rds_ib_get_mr+0x5c/0x230 [ 25.830443] RSP: 0018:ffff8801b059f890 EFLAGS: 00010202 [ 25.835774] RAX: dffffc0000000000 RBX: ffff8801b07e1300 RCX: ffffffff8562d96e [ 25.843017] RDX: 000000000000000d RSI: 0000000000000001 RDI: 0000000000000068 [ 25.850264] RBP: ffff8801b059f8b8 R08: ffffed0036274244 R09: ffff8801b13a1200 [ 25.857506] R10: 0000000000000004 R11: ffffed0036274243 R12: ffff8801b13a1200 [ 25.864747] R13: 0000000000000001 R14: ffff8801ca09fa9c R15: 0000000000000000 [ 25.871993] FS: 00007f4d050af700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000 [ 25.880193] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 25.886043] CR2: 00007f4d050aee78 CR3: 00000001b0d9b006 CR4: 00000000001606e0 [ 25.893297] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 25.900546] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 25.907789] Call Trace: [ 25.910361] __rds_rdma_map+0x710/0x1050 [ 25.914400] ? rds_pin_pages+0x300/0x300 [ 25.918437] ? __might_sleep+0x95/0x190 [ 25.922390] ? kasan_check_write+0x14/0x20 [ 25.926595] ? _copy_from_user+0x99/0x110 [ 25.930724] rds_get_mr_for_dest+0x1d4/0x2c0 [ 25.935111] ? rds_get_mr+0xf0/0xf0 [ 25.938720] ? iterate_fd+0x3f0/0x3f0 [ 25.942512] rds_setsockopt+0x6cc/0x980 [ 25.946453] ? rds_setsockopt+0x6cc/0x980 [ 25.950576] ? selinux_netlbl_socket_setsockopt+0x10c/0x460 [ 25.956293] ? rds_getsockopt+0x280/0x280 [ 25.960419] ? selinux_socket_setsockopt+0x64/0x80 [ 25.965319] ? security_socket_setsockopt+0x89/0xb0 [ 25.970308] SyS_setsockopt+0x189/0x360 [ 25.974252] ? SyS_recv+0x40/0x40 [ 25.977675] ? security_file_ioctl+0x7d/0xb0 [ 25.982053] ? security_file_ioctl+0x89/0xb0 [ 25.986432] ? do_syscall_64+0xb7/0x940 [ 25.990375] ? SyS_recv+0x40/0x40 [ 25.993804] do_syscall_64+0x281/0x940 [ 25.997668] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.002139] ? finish_task_switch+0x1c1/0x7e0 [ 26.006608] ? syscall_return_slowpath+0x550/0x550 [ 26.011508] ? syscall_return_slowpath+0x2ac/0x550 [ 26.016407] ? prepare_exit_to_usermode+0x350/0x350 [ 26.021396] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 26.026730] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.031545] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 26.036702] RIP: 0033:0x4456d9 [ 26.039860] RSP: 002b:00007f4d050aedb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 26.047536] RAX: ffffffffffffffda RBX: 00000000006dac3c RCX: 00000000004456d9 [ 26.054774] RDX: 0000000000000007 RSI: 0000000000000114 RDI: 0000000000000004 [ 26.062016] RBP: 00000000006dac38 R08: 00000000000000a0 R09: 0000000000000000 [ 26.069260] R10: 0000000020000380 R11: 0000000000000246 R12: 0000000000000000 [ 26.076498] R13: 00007fffbfb36d6f R14: 00007f4d050af9c0 R15: 0000000000000005 [ 26.083744] Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 cc 01 00 00 4c 8b bb 80 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7f 68 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 9c 01 00 00 4d 8b 7f 68 48 b8 00 00 00 00 00 [ 26.102810] RIP: rds_ib_get_mr+0x5c/0x230 RSP: ffff8801b059f890 [ 26.108889] ---[ end trace 7e1cea13b85473b0 ]--- [ 26.113639] Kernel panic - not syncing: Fatal exception [ 26.119446] Dumping ftrace buffer: [ 26.122957] (ftrace buffer empty) [ 26.126636] Kernel Offset: disabled [ 26.130234] Rebooting in 86400 seconds..