[....] Starting enhanced syslogd: rsyslogd[ 16.988398] audit: type=1400 audit(1521612723.573:5): avc: denied { syslog } for pid=4084 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: [ 23.570360] audit: type=1400 audit(1521612730.155:6): avc: denied { map } for pid=4225 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 '10.128.10.20' (ECDSA) to the list of known hosts. [ 30.133965] audit: type=1400 audit(1521612736.718:7): avc: denied { map } for pid=4239 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 2018/03/21 06:12:16 parsed 1 programs 2018/03/21 06:12:16 executed programs: 0 [ 30.367805] audit: type=1400 audit(1521612736.952:8): avc: denied { map } for pid=4239 comm="syz-execprog" path="/root/syzkaller-shm712009537" 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 [ 30.377872] IPVS: ftp: loaded support on port[0] = 21 [ 30.634073] kasan: CONFIG_KASAN_INLINE enabled [ 30.638773] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 30.646144] general protection fault: 0000 [#1] SMP KASAN [ 30.651655] Dumping ftrace buffer: [ 30.655165] (ftrace buffer empty) [ 30.658846] Modules linked in: [ 30.662018] CPU: 1 PID: 4294 Comm: syz-executor0 Not tainted 4.16.0-rc6+ #271 [ 30.669256] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.678590] RIP: 0010:rds_ib_get_mr+0x5c/0x230 [ 30.683142] RSP: 0018:ffff8801b0d9f880 EFLAGS: 00010202 [ 30.688474] RAX: dffffc0000000000 RBX: ffff8801afdcacc0 RCX: ffffffff8562d96e [ 30.695714] RDX: 000000000000000d RSI: 0000000000000001 RDI: 0000000000000068 [ 30.702956] RBP: ffff8801b0d9f8a8 R08: ffffed003af09804 R09: ffff8801d784c000 [ 30.710195] R10: 0000000000000004 R11: ffffed003af09803 R12: ffff8801d784c000 [ 30.717433] R13: 0000000000000001 R14: ffff8801b3611b1c R15: 0000000000000000 [ 30.728058] FS: 0000000000000000(0000) GS:ffff8801db300000(0063) knlGS:00000000f7f99b40 [ 30.736252] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 30.742108] CR2: 000000000813b029 CR3: 00000001b217d006 CR4: 00000000001606e0 [ 30.749364] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 30.756605] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 30.763844] Call Trace: [ 30.766410] __rds_rdma_map+0x710/0x1050 [ 30.770446] ? rds_pin_pages+0x300/0x300 [ 30.774477] ? compat_ifr_data_ioctl+0x170/0x170 [ 30.779205] ? __might_sleep+0x95/0x190 [ 30.783178] ? kasan_check_write+0x14/0x20 [ 30.787385] ? _copy_from_user+0x99/0x110 [ 30.791503] rds_get_mr_for_dest+0x1d4/0x2c0 [ 30.795881] ? __fget+0x342/0x5b0 [ 30.799310] ? rds_get_mr+0xf0/0xf0 [ 30.802905] ? lock_downgrade+0x980/0x980 [ 30.807025] ? lock_release+0xa40/0xa40 [ 30.810980] rds_setsockopt+0x6cc/0x980 [ 30.814923] ? rds_setsockopt+0x6cc/0x980 [ 30.819038] ? selinux_netlbl_socket_setsockopt+0x10c/0x460 [ 30.824719] ? rds_getsockopt+0x280/0x280 [ 30.828839] ? selinux_capable+0x40/0x40 [ 30.832871] ? selinux_socket_setsockopt+0x64/0x80 [ 30.837850] ? security_socket_setsockopt+0x89/0xb0 [ 30.842841] compat_SyS_setsockopt+0x2e7/0x410 [ 30.847394] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 30.852126] ? do_fast_syscall_32+0x156/0xf9f [ 30.856592] ? scm_detach_fds_compat+0x3c0/0x3c0 [ 30.861317] do_fast_syscall_32+0x3ec/0xf9f [ 30.865609] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.870090] ? do_int80_syscall_32+0x9c0/0x9c0 [ 30.874639] ? _raw_spin_unlock_irq+0x27/0x70 [ 30.879103] ? finish_task_switch+0x1c1/0x7e0 [ 30.883569] ? syscall_return_slowpath+0x2ac/0x550 [ 30.888467] ? prepare_exit_to_usermode+0x350/0x350 [ 30.893452] ? sysret32_from_system_call+0x5/0x3c [ 30.898271] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 30.903087] entry_SYSENTER_compat+0x70/0x7f [ 30.907463] RIP: 0023:0xf7fbec99 [ 30.910794] RSP: 002b:00000000f7f9909c EFLAGS: 00000286 ORIG_RAX: 000000000000016e [ 30.918470] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000114 [ 30.925710] RDX: 0000000000000007 RSI: 0000000020000380 RDI: 00000000000000a0 [ 30.932948] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 30.940197] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 30.947443] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 30.954689] 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 [ 30.973755] RIP: rds_ib_get_mr+0x5c/0x230 RSP: ffff8801b0d9f880 [ 30.979831] ---[ end trace 3530cd5aed9a05b1 ]--- [ 30.984582] Kernel panic - not syncing: Fatal exception [ 30.990360] Dumping ftrace buffer: [ 30.993871] (ftrace buffer empty) [ 30.997552] Kernel Offset: disabled [ 31.001151] Rebooting in 86400 seconds..