[....] Starting enhanced syslogd: rsyslogd[ 12.035246] audit: type=1400 audit(1514947796.801:5): avc: denied { syslog } for pid=3342 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: [ 18.464835] audit: type=1400 audit(1514947803.230:6): avc: denied { map } for pid=3484 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 [ 24.641067] audit: type=1400 audit(1514947809.406:7): avc: denied { map } for pid=3498 comm="syzkaller564985" path="/root/syzkaller564985288" 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 [ 24.670263] WARNING: CPU: 1 PID: 3498 at net/rds/rdma.c:617 rds_cmsg_rdma_args+0xf8a/0x1380 [ 24.678767] Kernel panic - not syncing: panic_on_warn set ... [ 24.678767] [ 24.686109] CPU: 1 PID: 3498 Comm: syzkaller564985 Not tainted 4.15.0-rc6+ #245 [ 24.693523] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 24.702855] Call Trace: [ 24.705421] dump_stack+0x194/0x257 [ 24.709038] ? arch_local_irq_restore+0x53/0x53 [ 24.713693] ? vsnprintf+0x1ed/0x1900 [ 24.717476] panic+0x1e4/0x41c [ 24.720649] ? refcount_error_report+0x214/0x214 [ 24.725388] ? show_regs_print_info+0x18/0x18 [ 24.729858] ? __warn+0x1c1/0x200 [ 24.733283] ? rds_cmsg_rdma_args+0xf8a/0x1380 [ 24.737834] __warn+0x1dc/0x200 [ 24.741083] ? rds_cmsg_rdma_args+0xf8a/0x1380 [ 24.745652] report_bug+0x211/0x2d0 [ 24.749266] fixup_bug.part.11+0x37/0x80 [ 24.753820] do_error_trap+0x2d7/0x3e0 [ 24.757680] ? math_error+0x400/0x400 [ 24.761450] ? __might_fault+0x110/0x1d0 [ 24.765493] ? lock_downgrade+0x980/0x980 [ 24.769625] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 24.774450] do_invalid_op+0x1b/0x20 [ 24.778153] invalid_op+0x22/0x40 [ 24.781588] RIP: 0010:rds_cmsg_rdma_args+0xf8a/0x1380 [ 24.786754] RSP: 0018:ffff8801c0ac75b0 EFLAGS: 00010293 [ 24.792086] RAX: ffff8801c09f8300 RBX: ffff8801daddf238 RCX: ffffffff85115f4a [ 24.799399] RDX: 0000000000000000 RSI: 00000000014080c0 RDI: ffff8801c06f9ef0 [ 24.806648] RBP: ffff8801c0ac7740 R08: 0000000000000000 R09: 1ffff10038158e8b [ 24.813890] R10: ffff8801c0ac7420 R11: 0000000000000000 R12: 0000000000000000 [ 24.821129] R13: ffff8801c044b200 R14: ffff8801daddf200 R15: 1ffff10038158eca [ 24.828386] ? rds_cmsg_rdma_args+0xf8a/0x1380 [ 24.832950] ? init_wait_entry+0x1b0/0x1b0 [ 24.837167] ? lockdep_init_map+0x9/0x10 [ 24.841205] ? rds_rdma_extra_size+0x2b0/0x2b0 [ 24.845757] ? rds_rdma_extra_size+0x205/0x2b0 [ 24.850313] ? rds_atomic_free_op+0x330/0x330 [ 24.854781] ? lock_sock_nested+0x91/0x110 [ 24.858999] rds_sendmsg+0x144d/0x1f90 [ 24.862862] ? rds_sendmsg+0x144d/0x1f90 [ 24.866907] ? rds_send_drop_to+0x19d0/0x19d0 [ 24.871376] ? find_held_lock+0x35/0x1d0 [ 24.875415] ? sock_has_perm+0x2a4/0x420 [ 24.879448] ? selinux_secmark_relabel_packet+0xc0/0xc0 [ 24.884778] ? lock_downgrade+0x980/0x980 [ 24.888908] ? lock_release+0xa40/0xa40 [ 24.892878] ? selinux_socket_sendmsg+0x36/0x40 [ 24.897525] ? security_socket_sendmsg+0x89/0xb0 [ 24.902268] ? rds_send_drop_to+0x19d0/0x19d0 [ 24.906750] sock_sendmsg+0xca/0x110 [ 24.910446] ___sys_sendmsg+0x320/0x8b0 [ 24.914411] ? copy_msghdr_from_user+0x590/0x590 [ 24.919149] ? __pmd_alloc+0x4e0/0x4e0 [ 24.923030] ? find_held_lock+0x35/0x1d0 [ 24.927092] ? __fget_light+0x297/0x380 [ 24.931057] ? fget_raw+0x20/0x20 [ 24.934491] ? find_held_lock+0x35/0x1d0 [ 24.938538] ? __do_page_fault+0x5f7/0xc90 [ 24.942751] ? lock_downgrade+0x980/0x980 [ 24.946901] __sys_sendmmsg+0x1ee/0x620 [ 24.950853] ? __sys_sendmmsg+0x1ee/0x620 [ 24.954991] ? SyS_sendmsg+0x50/0x50 [ 24.958690] ? mm_fault_error+0x2c0/0x2c0 [ 24.962831] ? __do_page_fault+0xc90/0xc90 [ 24.967063] ? syscall_return_slowpath+0x2ad/0x550 [ 24.971968] ? prepare_exit_to_usermode+0x340/0x340 [ 24.976960] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 24.981951] SyS_sendmmsg+0x35/0x60 [ 24.985551] entry_SYSCALL_64_fastpath+0x23/0x9a [ 24.990275] RIP: 0033:0x43fe49 [ 24.993433] RSP: 002b:00007ffd144533b8 EFLAGS: 00000217 ORIG_RAX: 0000000000000133 [ 25.001113] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 000000000043fe49 [ 25.008353] RDX: 0000000000000001 RSI: 000000002099ffc4 RDI: 0000000000000003 [ 25.015594] RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 [ 25.022832] R10: 0000000000000000 R11: 0000000000000217 R12: 00000000004017b0 [ 25.030080] R13: 0000000000401840 R14: 0000000000000000 R15: 0000000000000000 [ 25.038059] Dumping ftrace buffer: [ 25.041631] (ftrace buffer empty) [ 25.045309] Kernel Offset: disabled [ 25.048915] Rebooting in 86400 seconds..