[....] Starting enhanced syslogd: rsyslogd[ 11.925239] audit: type=1400 audit(1514947044.871:5): avc: denied { syslog } for pid=3344 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 mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] 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: [ 18.584106] audit: type=1400 audit(1514947051.529:6): avc: denied { map } for pid=3483 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 '10.128.0.46' (ECDSA) to the list of known hosts. executing program [ 24.781900] audit: type=1400 audit(1514947057.727:7): avc: denied { map } for pid=3497 comm="syzkaller493630" path="/root/syzkaller493630000" 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 [ 24.810448] WARNING: CPU: 1 PID: 3497 at net/rds/rdma.c:617 rds_cmsg_rdma_args+0xf8a/0x1380 [ 24.818931] Kernel panic - not syncing: panic_on_warn set ... [ 24.818931] [ 24.826271] CPU: 1 PID: 3497 Comm: syzkaller493630 Not tainted 4.15.0-rc5+ #172 [ 24.833684] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.843002] Call Trace: [ 24.845567] dump_stack+0x194/0x257 [ 24.849166] ? arch_local_irq_restore+0x53/0x53 [ 24.853810] ? vsnprintf+0x1ed/0x1900 [ 24.857585] panic+0x1e4/0x41c [ 24.860747] ? refcount_error_report+0x214/0x214 [ 24.865471] ? show_regs_print_info+0x18/0x18 [ 24.869938] ? __warn+0x1c1/0x200 [ 24.873367] ? rds_cmsg_rdma_args+0xf8a/0x1380 [ 24.877915] __warn+0x1dc/0x200 [ 24.881164] ? rds_cmsg_rdma_args+0xf8a/0x1380 [ 24.885716] report_bug+0x211/0x2d0 [ 24.889320] fixup_bug.part.11+0x37/0x80 [ 24.893360] do_error_trap+0x2d7/0x3e0 [ 24.897219] ? math_error+0x400/0x400 [ 24.900991] ? __might_fault+0x110/0x1d0 [ 24.905032] ? lock_downgrade+0x980/0x980 [ 24.909156] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.913972] do_invalid_op+0x1b/0x20 [ 24.917656] invalid_op+0x22/0x40 [ 24.921081] RIP: 0010:rds_cmsg_rdma_args+0xf8a/0x1380 [ 24.926235] RSP: 0018:ffff8801beb1f5b0 EFLAGS: 00010293 [ 24.931577] RAX: ffff8801bee1a640 RBX: ffff8801d87b6e38 RCX: ffffffff8514d53a [ 24.938825] RDX: 0000000000000000 RSI: 00000000014080c0 RDI: ffff8801beb01ef0 [ 24.946063] RBP: ffff8801beb1f740 R08: 0000000000000000 R09: 1ffff10037d63e8b [ 24.953300] R10: ffff8801beb1f420 R11: 0000000000000000 R12: 0000000000000000 [ 24.960537] R13: ffff8801bebd2000 R14: ffff8801d87b6e00 R15: 1ffff10037d63eca [ 24.967789] ? rds_cmsg_rdma_args+0xf8a/0x1380 [ 24.972360] ? init_wait_entry+0x1b0/0x1b0 [ 24.976567] ? lockdep_init_map+0x9/0x10 [ 24.980601] ? rds_rdma_extra_size+0x2b0/0x2b0 [ 24.985174] ? rds_rdma_extra_size+0x205/0x2b0 [ 24.989744] ? rds_atomic_free_op+0x330/0x330 [ 24.994218] ? lock_sock_nested+0x91/0x110 [ 24.998434] rds_sendmsg+0x144d/0x1f90 [ 25.002298] ? rds_sendmsg+0x144d/0x1f90 [ 25.006346] ? rds_send_drop_to+0x19d0/0x19d0 [ 25.010817] ? find_held_lock+0x35/0x1d0 [ 25.014857] ? sock_has_perm+0x2a4/0x420 [ 25.018892] ? selinux_secmark_relabel_packet+0xc0/0xc0 [ 25.024224] ? lock_downgrade+0x980/0x980 [ 25.028346] ? lock_release+0xa40/0xa40 [ 25.032304] ? selinux_socket_sendmsg+0x36/0x40 [ 25.036942] ? security_socket_sendmsg+0x89/0xb0 [ 25.041668] ? rds_send_drop_to+0x19d0/0x19d0 [ 25.046137] sock_sendmsg+0xca/0x110 [ 25.049983] ___sys_sendmsg+0x320/0x8b0 [ 25.053935] ? copy_msghdr_from_user+0x590/0x590 [ 25.058772] ? __pmd_alloc+0x4e0/0x4e0 [ 25.062637] ? find_held_lock+0x35/0x1d0 [ 25.066675] ? __fget_light+0x297/0x380 [ 25.070617] ? fget_raw+0x20/0x20 [ 25.074038] ? find_held_lock+0x35/0x1d0 [ 25.078163] ? __do_page_fault+0x5f7/0xc90 [ 25.082369] ? lock_downgrade+0x980/0x980 [ 25.086503] __sys_sendmmsg+0x1ee/0x620 [ 25.090447] ? __sys_sendmmsg+0x1ee/0x620 [ 25.094582] ? SyS_sendmsg+0x50/0x50 [ 25.098273] ? mm_fault_error+0x2c0/0x2c0 [ 25.102403] ? __do_page_fault+0xc90/0xc90 [ 25.106622] ? syscall_return_slowpath+0x2ad/0x550 [ 25.111524] ? prepare_exit_to_usermode+0x340/0x340 [ 25.116515] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 25.121505] SyS_sendmmsg+0x35/0x60 [ 25.125104] entry_SYSCALL_64_fastpath+0x23/0x9a [ 25.129826] RIP: 0033:0x43fe49 [ 25.132983] RSP: 002b:00007ffd50b318d8 EFLAGS: 00000217 ORIG_RAX: 0000000000000133 [ 25.140659] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fe49 [ 25.147896] RDX: 0000000000000001 RSI: 000000002099ffc4 RDI: 0000000000000003 [ 25.155133] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 25.162369] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004017b0 [ 25.169605] R13: 0000000000401840 R14: 0000000000000000 R15: 0000000000000000 [ 25.177040] Dumping ftrace buffer: [ 25.180635] (ftrace buffer empty) [ 25.184314] Kernel Offset: disabled [ 25.187914] Rebooting in 86400 seconds..