[....] Starting enhanced syslogd: rsyslogd[ 15.466723] audit: type=1400 audit(1520376322.654:5): avc: denied { syslog } for pid=4063 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: [ 19.680830] audit: type=1400 audit(1520376326.868:6): avc: denied { map } for pid=4203 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 '10.128.0.53' (ECDSA) to the list of known hosts. [ 26.013089] audit: type=1400 audit(1520376333.200:7): avc: denied { map } for pid=4217 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 2018/03/06 22:45:33 parsed 1 programs 2018/03/06 22:45:33 executed programs: 0 [ 26.262614] audit: type=1400 audit(1520376333.450:8): avc: denied { map } for pid=4217 comm="syz-execprog" path="/root/syzkaller-shm130964771" 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 [ 26.277191] IPVS: ftp: loaded support on port[0] = 21 [ 26.288211] audit: type=1400 audit(1520376333.458:9): avc: denied { sys_admin } for pid=4222 comm="syz-executor0" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 26.327347] audit: type=1400 audit(1520376333.515:10): avc: denied { sys_chroot } for pid=4224 comm="syz-executor0" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 26.351827] audit: type=1400 audit(1520376333.517:11): avc: denied { net_admin } for pid=4224 comm="syz-executor0" capability=12 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 26.391978] kasan: CONFIG_KASAN_INLINE enabled [ 26.396671] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 26.404053] general protection fault: 0000 [#1] SMP KASAN [ 26.409573] Dumping ftrace buffer: [ 26.413084] (ftrace buffer empty) [ 26.416765] Modules linked in: [ 26.419931] CPU: 0 PID: 4228 Comm: syz-executor0 Not tainted 4.16.0-rc4+ #253 [ 26.427169] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.436510] RIP: 0010:rdma_join_multicast+0x46d/0x3bb0 [ 26.441752] RSP: 0018:ffff8801b5dc7520 EFLAGS: 00010202 [ 26.447086] RAX: 0000000000000000 RBX: ffff8801d1bf2f00 RCX: 0000000000000029 [ 26.454326] RDX: dffffc0000000000 RSI: 0000000000000002 RDI: 0000000000000148 [ 26.461566] RBP: ffff8801b5dc7820 R08: ffff8801b0f218b0 R09: 1ffff10036bb8e82 [ 26.468807] R10: ffff8801b5dc73d8 R11: 0000000000000001 R12: ffff8801b0f21680 [ 26.476046] R13: ffff8801d1bf2fad R14: 0000000000000000 R15: ffff8801b0f21880 [ 26.483289] FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f7ee1b40 [ 26.491484] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 26.497337] CR2: 00000000f7ee1db0 CR3: 00000001b5ad1003 CR4: 00000000001606f0 [ 26.504577] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 26.511816] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 26.519054] Call Trace: [ 26.521613] ? find_held_lock+0x35/0x1d0 [ 26.525655] ? rdma_resolve_route+0x2010/0x2010 [ 26.530295] ? __radix_tree_replace+0x1af/0x310 [ 26.534938] ? node_tag_clear+0xf2/0x180 [ 26.538974] ? radix_tree_iter_tag_clear+0x97/0xd0 [ 26.543878] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 26.548694] ? wait_for_completion+0x770/0x770 [ 26.553258] ? idr_alloc+0x127/0x180 [ 26.556955] ucma_process_join+0x4da/0xa90 [ 26.561177] ? ucma_process_join+0x4da/0xa90 [ 26.565565] ? ucma_set_option+0x4d0/0x4d0 [ 26.569783] ? __might_sleep+0x95/0x190 [ 26.573737] ? kasan_check_write+0x14/0x20 [ 26.577943] ? _copy_from_user+0x99/0x110 [ 26.582062] ucma_join_multicast+0xa5/0x110 [ 26.586352] ? ucma_process_join+0xa90/0xa90 [ 26.590743] ? kasan_check_write+0x14/0x20 [ 26.594946] ? _copy_from_user+0x99/0x110 [ 26.599067] ucma_write+0x2d6/0x3d0 [ 26.602662] ? ucma_process_join+0xa90/0xa90 [ 26.607044] ? ucma_resolve_route+0x1a0/0x1a0 [ 26.611516] ? ucma_resolve_route+0x1a0/0x1a0 [ 26.615979] __vfs_write+0xef/0x970 [ 26.619580] ? rcu_note_context_switch+0x710/0x710 [ 26.624481] ? kernel_read+0x120/0x120 [ 26.628337] ? __might_sleep+0x95/0x190 [ 26.632283] ? _cond_resched+0x14/0x30 [ 26.636141] ? __inode_security_revalidate+0xd9/0x130 [ 26.641300] ? avc_policy_seqno+0x9/0x20 [ 26.645332] ? selinux_file_permission+0x82/0x460 [ 26.650159] ? security_file_permission+0x89/0x1e0 [ 26.655061] ? rw_verify_area+0xe5/0x2b0 [ 26.659093] ? __fdget_raw+0x20/0x20 [ 26.662778] vfs_write+0x189/0x510 [ 26.666291] SyS_write+0xef/0x220 [ 26.669716] ? exit_to_usermode_loop+0x198/0x2f0 [ 26.674446] ? SyS_read+0x220/0x220 [ 26.678045] ? do_fast_syscall_32+0x156/0xf9f [ 26.682514] ? SyS_read+0x220/0x220 [ 26.686119] do_fast_syscall_32+0x3ec/0xf9f [ 26.690416] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.694887] ? do_int80_syscall_32+0x9c0/0x9c0 [ 26.699436] ? _raw_spin_unlock_irq+0x27/0x70 [ 26.703905] ? finish_task_switch+0x1c1/0x7e0 [ 26.708378] ? syscall_return_slowpath+0x2ac/0x550 [ 26.713279] ? prepare_exit_to_usermode+0x350/0x350 [ 26.718265] ? sysret32_from_system_call+0x5/0x3c [ 26.723082] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 26.727912] entry_SYSENTER_compat+0x70/0x7f [ 26.732292] RIP: 0023:0xf7f06c99 [ 26.735628] RSP: 002b:00000000f7ee109c EFLAGS: 00000286 ORIG_RAX: 0000000000000004 [ 26.743312] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000200001c0 [ 26.750553] RDX: 00000000000000a0 RSI: 0000000000000000 RDI: 0000000000000000 [ 26.757793] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 26.765035] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 26.772274] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 26.779532] Code: 00 48 c1 ea 03 80 3c 02 00 0f 85 d7 34 00 00 49 8b 04 24 48 ba 00 00 00 00 00 fc ff df 48 8d b8 48 01 00 00 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 f5 35 00 00 49 c1 e6 04 4c 03 b0 48 01 00 00 [ 26.798622] RIP: rdma_join_multicast+0x46d/0x3bb0 RSP: ffff8801b5dc7520 [ 26.805448] ---[ end trace 42e3791a55fe8698 ]--- [ 26.810212] Kernel panic - not syncing: Fatal exception [ 26.815977] Dumping ftrace buffer: [ 26.819490] (ftrace buffer empty) [ 26.823169] Kernel Offset: disabled [ 26.826767] Rebooting in 86400 seconds..