[ 37.751265] audit: type=1800 audit(1567802018.378:31): pid=7436 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2469 res=0 [ 37.751288] audit: type=1800 audit(1567802018.378:32): pid=7436 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2450 res=0 [....] 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 Warning: Permanently added '10.128.1.0' (ECDSA) to the list of known hosts. 2019/09/06 20:33:48 parsed 1 programs syzkaller login: [ 47.348904] kauditd_printk_skb: 3 callbacks suppressed [ 47.348919] audit: type=1400 audit(1567802028.028:36): avc: denied { map } for pid=7627 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 [ 47.429163] audit: type=1400 audit(1567802028.108:37): avc: denied { map } for pid=7627 comm="syz-execprog" path="/sys/kernel/debug/kcov" dev="debugfs" ino=14978 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:debugfs_t:s0 tclass=file permissive=1 2019/09/06 20:33:49 executed programs: 0 [ 49.034367] IPVS: ftp: loaded support on port[0] = 21 [ 49.094184] chnl_net:caif_netlink_parms(): no params data found [ 49.126655] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.134034] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.142195] device bridge_slave_0 entered promiscuous mode [ 49.149776] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.156768] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.163805] device bridge_slave_1 entered promiscuous mode [ 49.178996] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 49.188882] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 49.206124] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 49.214127] team0: Port device team_slave_0 added [ 49.219568] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 49.227093] team0: Port device team_slave_1 added [ 49.232372] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.239609] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.293167] device hsr_slave_0 entered promiscuous mode [ 49.361128] device hsr_slave_1 entered promiscuous mode [ 49.421386] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 49.428395] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 49.443811] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.450259] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.457305] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.464916] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.495593] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 49.503506] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.511789] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 49.520095] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.529723] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.537519] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.545025] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.556099] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 49.562815] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.572138] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.580044] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.586466] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.596028] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.604963] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.611567] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.631647] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.639689] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.647707] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.655809] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.665637] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 49.675336] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 49.682424] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.695988] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 49.706398] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.716932] audit: type=1400 audit(1567802030.398:38): avc: denied { associate } for pid=7644 comm="syz-executor.0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 50.138027] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 [ 50.146203] PGD 82a23067 P4D 82a23067 PUD 9237c067 PMD 0 [ 50.151753] Oops: 0010 [#1] PREEMPT SMP KASAN [ 50.156270] CPU: 1 PID: 7726 Comm: syz-executor.0 Not tainted 4.19.70 #0 [ 50.163104] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.172450] RIP: 0010: (null) [ 50.176335] Code: Bad RIP value. [ 50.179772] RSP: 0018:ffff88809c3bf4d8 EFLAGS: 00010246 [ 50.185337] RAX: dffffc0000000000 RBX: ffffffff87e1f620 RCX: ffffffff857e5ec4 [ 50.192633] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888081353640 [ 50.199978] RBP: ffff88809c3bf5d0 R08: ffff888080e62040 R09: ffff88809c3bf658 [ 50.207235] R10: ffffed1013877ed9 R11: ffff88809c3bf6cf R12: ffff88809c3bf5a8 [ 50.214517] R13: ffff888081353640 R14: 0000000000000001 R15: ffffffff87e1f620 [ 50.221923] FS: 00007f0178f06700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 50.230280] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.236150] CR2: ffffffffffffffd6 CR3: 0000000089abc000 CR4: 00000000001406e0 [ 50.243413] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.250691] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.257948] Call Trace: [ 50.260637] tc_bind_tclass+0x13c/0x490 [ 50.264631] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.270159] ? __qdisc_calculate_pkt_len+0x2e0/0x2e0 [ 50.275271] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 50.280278] ? validate_nla+0x32f/0x810 [ 50.284245] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 50.289276] ? qdisc_match_from_root+0x18a/0x280 [ 50.294029] tc_ctl_tclass+0xaa9/0xc60 [ 50.297905] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 50.302997] ? find_held_lock+0x35/0x130 [ 50.307051] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.312582] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 50.317690] rtnetlink_rcv_msg+0x463/0xb00 [ 50.321916] ? rtnetlink_put_metrics+0x560/0x560 [ 50.326729] ? netdev_pick_tx+0x300/0x300 [ 50.330879] ? netlink_deliver_tap+0x22d/0xc20 [ 50.335474] ? find_held_lock+0x35/0x130 [ 50.339556] netlink_rcv_skb+0x17d/0x460 [ 50.344127] ? rtnetlink_put_metrics+0x560/0x560 [ 50.348961] ? netlink_ack+0xb30/0xb30 [ 50.352852] ? kasan_check_read+0x11/0x20 [ 50.356990] ? netlink_deliver_tap+0x254/0xc20 [ 50.361564] rtnetlink_rcv+0x1d/0x30 [ 50.365274] netlink_unicast+0x537/0x720 [ 50.369351] ? netlink_attachskb+0x770/0x770 [ 50.373773] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.379442] netlink_sendmsg+0x8ae/0xd70 [ 50.383517] ? netlink_unicast+0x720/0x720 [ 50.388188] ? selinux_socket_sendmsg+0x36/0x40 [ 50.392946] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.398475] ? security_socket_sendmsg+0x8d/0xc0 [ 50.403237] ? netlink_unicast+0x720/0x720 [ 50.407461] sock_sendmsg+0xd7/0x130 [ 50.411193] ___sys_sendmsg+0x803/0x920 [ 50.415265] ? copy_msghdr_from_user+0x430/0x430 [ 50.420020] ? lock_downgrade+0x810/0x810 [ 50.424162] ? kasan_check_read+0x11/0x20 [ 50.428373] ? __fget+0x367/0x540 [ 50.431836] ? iterate_fd+0x360/0x360 [ 50.435644] ? lock_downgrade+0x810/0x810 [ 50.439815] ? __fget_light+0x1a9/0x230 [ 50.443785] ? __fdget+0x1b/0x20 [ 50.447159] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.452780] __sys_sendmsg+0x105/0x1d0 [ 50.456671] ? __ia32_sys_shutdown+0x80/0x80 [ 50.461091] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.465965] ? do_syscall_64+0x26/0x620 [ 50.469943] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.475739] ? do_syscall_64+0x26/0x620 [ 50.479747] __x64_sys_sendmsg+0x78/0xb0 [ 50.484093] do_syscall_64+0xfd/0x620 [ 50.487912] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.493090] RIP: 0033:0x459879 [ 50.496296] Code: fd 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 50.515287] RSP: 002b:00007f0178f05c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 50.523264] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000459879 [ 50.530564] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 50.537835] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 50.545131] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f0178f066d4 [ 50.552475] R13: 00000000004c77c2 R14: 00000000004dd018 R15: 00000000ffffffff [ 50.559736] Modules linked in: [ 50.562936] CR2: 0000000000000000 [ 50.568741] ---[ end trace c69cc42f8400bd31 ]--- [ 50.573857] RIP: 0010: (null) [ 50.578115] Code: Bad RIP value. [ 50.581571] RSP: 0018:ffff88809c3bf4d8 EFLAGS: 00010246 [ 50.587027] RAX: dffffc0000000000 RBX: ffffffff87e1f620 RCX: ffffffff857e5ec4 [ 50.594639] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888081353640 [ 50.601965] RBP: ffff88809c3bf5d0 R08: ffff888080e62040 R09: ffff88809c3bf658 [ 50.609250] R10: ffffed1013877ed9 R11: ffff88809c3bf6cf R12: ffff88809c3bf5a8 [ 50.616555] R13: ffff888081353640 R14: 0000000000000001 R15: ffffffff87e1f620 [ 50.623912] FS: 00007f0178f06700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 50.632198] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.638101] CR2: ffffffffffffffd6 CR3: 0000000089abc000 CR4: 00000000001406e0 [ 50.646202] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.653878] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.661216] Kernel panic - not syncing: Fatal exception [ 50.668417] Kernel Offset: disabled [ 50.672142] Rebooting in 86400 seconds..