[ 46.113665] audit: type=1800 audit(1546839503.554:30): pid=8223 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 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: [ 50.331255] kauditd_printk_skb: 4 callbacks suppressed [ 50.331271] audit: type=1400 audit(1546839507.794:35): avc: denied { map } for pid=8397 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 '10.128.0.21' (ECDSA) to the list of known hosts. [ 57.175221] audit: type=1400 audit(1546839514.634:36): avc: denied { map } for pid=8409 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 2019/01/07 05:38:35 parsed 1 programs [ 57.944514] audit: type=1400 audit(1546839515.404:37): avc: denied { map } for pid=8409 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=15525 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 2019/01/07 05:38:36 executed programs: 0 [ 59.355288] IPVS: ftp: loaded support on port[0] = 21 [ 59.422224] chnl_net:caif_netlink_parms(): no params data found [ 59.455748] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.462689] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.469810] device bridge_slave_0 entered promiscuous mode [ 59.477408] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.483865] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.491448] device bridge_slave_1 entered promiscuous mode [ 59.507263] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 59.516254] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 59.533612] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 59.541647] team0: Port device team_slave_0 added [ 59.547526] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 59.554639] team0: Port device team_slave_1 added [ 59.560064] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 59.567655] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 59.629796] device hsr_slave_0 entered promiscuous mode [ 59.697305] device hsr_slave_1 entered promiscuous mode [ 59.757544] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 59.764568] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 59.779374] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.785774] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.792703] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.799283] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.832971] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 59.840274] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.849326] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 59.858377] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.879281] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.886732] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.894992] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 59.906598] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 59.913203] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.922383] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.930046] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.936386] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.946602] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.954595] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.961216] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.980457] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.988921] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.996760] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 60.006955] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.018147] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.028626] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 60.034895] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 60.042533] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.056363] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 60.067553] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.078750] audit: type=1400 audit(1546839517.544:38): avc: denied { associate } for pid=8422 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 [ 60.190447] kasan: CONFIG_KASAN_INLINE enabled [ 60.195185] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 60.202736] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 60.208979] CPU: 0 PID: 8439 Comm: syz-executor0 Not tainted 4.20.0+ #13 [ 60.215827] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.225184] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 60.230716] 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 [ 60.249622] RSP: 0018:ffff888097f27120 EFLAGS: 00010203 [ 60.254978] RAX: dffffc0000000000 RBX: ffff888085645240 RCX: 0000000000000000 [ 60.262234] RDX: 0000000000000001 RSI: ffffffff87b6cca2 RDI: 000000000000000e [ 60.269581] RBP: ffff888097f273e8 R08: ffff88808f854280 R09: ffff88808f880ed0 [ 60.276841] R10: fffffbfff14a1168 R11: ffffffff8a508b43 R12: ffff88809087a6e0 [ 60.284102] R13: ffff88808f880e80 R14: ffff8880856456a0 R15: 0000000000000000 [ 60.291375] FS: 00007f48be887700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 60.299603] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.305479] CR2: 0000000000000000 CR3: 0000000090cd5000 CR4: 00000000001406f0 [ 60.312752] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.320024] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.327282] Call Trace: [ 60.329868] ? __kmalloc_node_track_caller+0x4e/0x70 [ 60.334999] ? __alloc_skb+0x12d/0x730 [ 60.338900] ? smc_diag_handler_dump+0x350/0x350 [ 60.343661] ? sock_sendmsg+0xdd/0x130 [ 60.347560] ? ___sys_sendmsg+0x7ec/0x910 [ 60.351726] ? __sys_sendmsg+0x112/0x270 [ 60.355794] ? __x64_sys_sendmsg+0x78/0xb0 [ 60.360020] ? do_syscall_64+0x1a3/0x800 [ 60.364110] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.369473] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.375000] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.380560] ? check_preemption_disabled+0x48/0x290 [ 60.385599] ? __lock_is_held+0xb6/0x140 [ 60.389655] ? __kmalloc_node_track_caller+0x3d/0x70 [ 60.394751] ? lock_acquire+0x1db/0x570 [ 60.398722] ? smc_diag_dump_proto.isra.0+0xfb/0x3c0 [ 60.403820] ? lock_release+0xc40/0xc40 [ 60.407789] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 60.413324] ? kasan_check_write+0x14/0x20 [ 60.417558] smc_diag_dump_proto.isra.0+0x2e7/0x3c0 [ 60.422566] ? __smc_diag_dump.isra.0+0x2ba0/0x2ba0 [ 60.427577] ? find_held_lock+0x35/0x120 [ 60.431633] smc_diag_dump+0x27/0x80 [ 60.435363] netlink_dump+0x5f2/0x1070 [ 60.439247] ? netlink_broadcast+0x50/0x50 [ 60.443498] __netlink_dump_start+0x5b4/0x7e0 [ 60.447990] smc_diag_handler_dump+0x2a7/0x350 [ 60.452563] ? smc_gid_be16_convert+0x2c0/0x2c0 [ 60.457241] ? lock_downgrade+0x910/0x910 [ 60.461385] ? smc_diag_dump_proto.isra.0+0x3c0/0x3c0 [ 60.466570] ? rcu_read_unlock_special+0x380/0x380 [ 60.471518] sock_diag_rcv_msg+0x322/0x410 [ 60.475750] netlink_rcv_skb+0x17d/0x410 [ 60.479808] ? sock_diag_bind+0x80/0x80 [ 60.483775] ? netlink_ack+0xba0/0xba0 [ 60.487664] sock_diag_rcv+0x2b/0x40 [ 60.491388] netlink_unicast+0x574/0x770 [ 60.495448] ? netlink_attachskb+0x980/0x980 [ 60.499857] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.505389] netlink_sendmsg+0xa05/0xf90 [ 60.509445] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 60.514998] ? netlink_unicast+0x770/0x770 [ 60.519258] ? selinux_socket_sendmsg+0x36/0x40 [ 60.523922] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.529467] ? security_socket_sendmsg+0x93/0xc0 [ 60.534217] ? netlink_unicast+0x770/0x770 [ 60.538464] sock_sendmsg+0xdd/0x130 [ 60.542186] ___sys_sendmsg+0x7ec/0x910 [ 60.546190] ? copy_msghdr_from_user+0x570/0x570 [ 60.550937] ? iterate_fd+0x4b0/0x4b0 [ 60.555167] ? __might_fault+0x12b/0x1e0 [ 60.559224] ? find_held_lock+0x35/0x120 [ 60.563277] ? __might_fault+0x12b/0x1e0 [ 60.567334] ? __fget_light+0x2db/0x420 [ 60.571308] ? fget_raw+0x20/0x20 [ 60.574769] ? lock_release+0xc40/0xc40 [ 60.578731] ? trace_hardirqs_off_caller+0x300/0x300 [ 60.583824] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 60.589372] ? __fdget+0x1b/0x20 [ 60.592735] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 60.598283] ? sockfd_lookup_light+0xc2/0x160 [ 60.602776] __sys_sendmsg+0x112/0x270 [ 60.606660] ? __ia32_sys_shutdown+0x80/0x80 [ 60.611091] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.616451] ? trace_hardirqs_off_caller+0x300/0x300 [ 60.621551] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 60.626305] __x64_sys_sendmsg+0x78/0xb0 [ 60.630369] do_syscall_64+0x1a3/0x800 [ 60.634271] ? syscall_return_slowpath+0x5f0/0x5f0 [ 60.639202] ? prepare_exit_to_usermode+0x232/0x3b0 [ 60.644219] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 60.649072] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 60.654256] RIP: 0033:0x457ec9 [ 60.657447] 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 [ 60.676354] RSP: 002b:00007f48be886c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 60.684064] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457ec9 [ 60.691415] RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000006 [ 60.698676] RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 [ 60.705959] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f48be8876d4 [ 60.713227] R13: 00000000004c52f9 R14: 00000000004d8d58 R15: 00000000ffffffff [ 60.720614] Modules linked in: [ 60.723830] ---[ end trace c0c38859c949ee8f ]--- [ 60.728613] RIP: 0010:__smc_diag_dump.isra.0+0x32a/0x2ba0 [ 60.734149] 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 [ 60.753074] RSP: 0018:ffff888097f27120 EFLAGS: 00010203 [ 60.758469] RAX: dffffc0000000000 RBX: ffff888085645240 RCX: 0000000000000000 [ 60.765736] RDX: 0000000000000001 RSI: ffffffff87b6cca2 RDI: 000000000000000e [ 60.773020] RBP: ffff888097f273e8 R08: ffff88808f854280 R09: ffff88808f880ed0 [ 60.780306] R10: fffffbfff14a1168 R11: ffffffff8a508b43 R12: ffff88809087a6e0 [ 60.787594] R13: ffff88808f880e80 R14: ffff8880856456a0 R15: 0000000000000000 [ 60.794870] FS: 00007f48be887700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 [ 60.803113] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 60.809007] CR2: 0000000000000000 CR3: 0000000090cd5000 CR4: 00000000001406f0 [ 60.816271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 60.823550] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 60.830846] Kernel panic - not syncing: Fatal exception [ 60.837193] Kernel Offset: disabled [ 60.840818] Rebooting in 86400 seconds..