[ 39.949790] audit: type=1800 audit(1547309285.587:29): pid=7876 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 39.985203] audit: type=1800 audit(1547309285.587:30): pid=7876 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.72' (ECDSA) to the list of known hosts. syzkaller login: [ 47.817140] kauditd_printk_skb: 5 callbacks suppressed [ 47.817154] audit: type=1400 audit(1547309293.457:36): avc: denied { map } for pid=8062 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 2019/01/12 16:08:14 parsed 1 programs [ 48.458784] audit: type=1400 audit(1547309294.097:37): avc: denied { map } for pid=8062 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=15484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 2019/01/12 16:08:15 executed programs: 0 [ 50.135091] IPVS: ftp: loaded support on port[0] = 21 [ 50.185781] chnl_net:caif_netlink_parms(): no params data found [ 50.214778] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.221422] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.228343] device bridge_slave_0 entered promiscuous mode [ 50.235122] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.241597] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.248490] device bridge_slave_1 entered promiscuous mode [ 50.262997] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 50.271932] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 50.286050] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 50.293498] team0: Port device team_slave_0 added [ 50.298810] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 50.305797] team0: Port device team_slave_1 added [ 50.311034] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 50.318191] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 50.398003] device hsr_slave_0 entered promiscuous mode [ 50.466850] device hsr_slave_1 entered promiscuous mode [ 50.536819] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 50.543763] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 50.556542] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.562927] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.569761] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.576082] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.604225] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 50.611626] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.619540] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 50.628109] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.646995] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.654070] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.661854] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 50.671077] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 50.677685] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.685454] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.693370] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.699735] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.717278] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.724825] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.731178] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.738602] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.746091] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.753943] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 50.761641] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 50.769989] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 50.779278] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 50.785258] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 50.798052] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 50.808203] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 50.818532] audit: type=1400 audit(1547309296.457:38): avc: denied { associate } for pid=8075 comm="syz-executor0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 50.960484] kasan: CONFIG_KASAN_INLINE enabled [ 50.965156] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.972552] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 50.978765] CPU: 0 PID: 8106 Comm: syz-executor0 Not tainted 5.0.0-rc1+ #21 [ 50.985838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.995192] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 51.000707] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 26 25 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 7f 20 49 8d 7f 0e 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 d2 [ 51.019584] RSP: 0018:ffff8880939c7120 EFLAGS: 00010203 [ 51.024922] RAX: dffffc0000000000 RBX: ffff88809adb12c0 RCX: 0000000000000000 [ 51.032164] RDX: 0000000000000001 RSI: ffffffff87b6cca2 RDI: 000000000000000e [ 51.039408] RBP: ffff8880939c73e8 R08: ffff8880926c4580 R09: ffff88808dc11010 [ 51.046651] R10: fffffbfff14a1198 R11: ffffffff8a508cc3 R12: ffff8880944c18a0 [ 51.053910] R13: ffff88808dc10fc0 R14: ffff88809adb1720 R15: 0000000000000000 [ 51.061156] FS: 00007f87df4ea700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 51.069354] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.075220] CR2: 0000000000000000 CR3: 0000000092500000 CR4: 00000000001406f0 [ 51.082466] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.089807] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.097051] Call Trace: [ 51.099616] ? __kmalloc_reserve.isra.0+0x40/0xe0 [ 51.104436] ? netlink_dump+0x7be/0x1070 [ 51.108476] ? smc_diag_handler_dump+0x350/0x350 [ 51.113222] ? ___sys_sendmsg+0x7ec/0x910 [ 51.117343] ? __sys_sendmsg+0x112/0x270 [ 51.121377] ? __x64_sys_sendmsg+0x78/0xb0 [ 51.125587] ? do_syscall_64+0x1a3/0x800 [ 51.129625] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.134965] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.140475] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.145990] ? check_preemption_disabled+0x48/0x290 [ 51.150987] ? __lock_is_held+0xb6/0x140 [ 51.155024] ? __kmalloc_node_track_caller+0x3d/0x70 [ 51.160102] ? lock_acquire+0x1db/0x570 [ 51.164052] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 51.169132] ? lock_release+0xc40/0xc40 [ 51.173084] ? kasan_kmalloc+0x9/0x10 [ 51.176862] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.182375] ? kasan_check_write+0x14/0x20 [ 51.186601] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 51.191596] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 51.196586] ? find_held_lock+0x35/0x120 [ 51.200620] smc_diag_dump+0x27/0x80 [ 51.204315] netlink_dump+0x5f2/0x1070 [ 51.208179] ? netlink_broadcast+0x50/0x50 [ 51.212397] __netlink_dump_start+0x5b4/0x7e0 [ 51.216870] smc_diag_handler_dump+0x2a7/0x350 [ 51.221426] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 51.226068] ? lock_downgrade+0x910/0x910 [ 51.230189] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 51.235354] ? rcu_read_unlock_special+0x380/0x380 [ 51.240263] sock_diag_rcv_msg+0x322/0x410 [ 51.244486] netlink_rcv_skb+0x17d/0x410 [ 51.248533] ? sock_diag_bind+0x80/0x80 [ 51.252484] ? netlink_ack+0xba0/0xba0 [ 51.256355] sock_diag_rcv+0x2b/0x40 [ 51.260045] netlink_unicast+0x574/0x770 [ 51.264100] ? netlink_attachskb+0x980/0x980 [ 51.268482] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.274002] netlink_sendmsg+0xa05/0xf90 [ 51.278040] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.283568] ? netlink_unicast+0x770/0x770 [ 51.287788] ? selinux_socket_sendmsg+0x36/0x40 [ 51.292428] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.297939] ? security_socket_sendmsg+0x93/0xc0 [ 51.302670] ? netlink_unicast+0x770/0x770 [ 51.306880] sock_sendmsg+0xdd/0x130 [ 51.310572] ___sys_sendmsg+0x7ec/0x910 [ 51.314527] ? copy_msghdr_from_user+0x570/0x570 [ 51.319259] ? iterate_fd+0x4b0/0x4b0 [ 51.323038] ? __might_fault+0x12b/0x1e0 [ 51.327073] ? find_held_lock+0x35/0x120 [ 51.331110] ? __might_fault+0x12b/0x1e0 [ 51.335147] ? __fget_light+0x2db/0x420 [ 51.339311] ? fget_raw+0x20/0x20 [ 51.342757] ? lock_release+0xc40/0xc40 [ 51.346708] ? trace_hardirqs_off_caller+0x300/0x300 [ 51.351788] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.357302] ? __fdget+0x1b/0x20 [ 51.360643] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.366157] ? sockfd_lookup_light+0xc2/0x160 [ 51.370627] __sys_sendmsg+0x112/0x270 [ 51.374498] ? __ia32_sys_shutdown+0x80/0x80 [ 51.378884] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.384226] ? trace_hardirqs_off_caller+0x300/0x300 [ 51.389305] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 51.394039] __x64_sys_sendmsg+0x78/0xb0 [ 51.398078] do_syscall_64+0x1a3/0x800 [ 51.401939] ? syscall_return_slowpath+0x5f0/0x5f0 [ 51.406844] ? prepare_exit_to_usermode+0x232/0x3b0 [ 51.411844] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 51.416666] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.421832] RIP: 0033:0x457ec9 [ 51.424998] Code: 6d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.443874] RSP: 002b:00007f87df4e9c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 51.451558] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 51.458812] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000006 [ 51.466055] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 51.473300] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f87df4ea6d4 [ 51.480545] R13: 00000000004c52f9 R14: 00000000004d8d58 R15: 00000000ffffffff [ 51.487792] Modules linked in: [ 51.491671] ---[ end trace 3172d19d631f0bff ]--- [ 51.496431] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 51.501953] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 26 25 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b 7f 20 49 8d 7f 0e 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 d2 [ 51.520927] RSP: 0018:ffff8880939c7120 EFLAGS: 00010203 [ 51.526263] RAX: dffffc0000000000 RBX: ffff88809adb12c0 RCX: 0000000000000000 [ 51.533541] RDX: 0000000000000001 RSI: ffffffff87b6cca2 RDI: 000000000000000e [ 51.540800] RBP: ffff8880939c73e8 R08: ffff8880926c4580 R09: ffff88808dc11010 [ 51.548054] R10: fffffbfff14a1198 R11: ffffffff8a508cc3 R12: ffff8880944c18a0 [ 51.555297] R13: ffff88808dc10fc0 R14: ffff88809adb1720 R15: 0000000000000000 [ 51.562556] FS: 00007f87df4ea700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 51.570765] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 51.576635] CR2: 0000000000000000 CR3: 0000000092500000 CR4: 00000000001406f0 [ 51.583884] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 51.591142] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.598396] Kernel panic - not syncing: Fatal exception [ 51.604863] Kernel Offset: disabled [ 51.608485] Rebooting in 86400 seconds..