[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c. [ 65.700217][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 65.700227][ T26] audit: type=1800 audit(1567861802.228:29): pid=9741 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 65.726807][ T26] audit: type=1800 audit(1567861802.228:30): pid=9741 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.81' (ECDSA) to the list of known hosts. 2019/09/07 13:10:13 parsed 1 programs 2019/09/07 13:10:14 executed programs: 0 syzkaller login: [ 77.929918][ T9909] IPVS: ftp: loaded support on port[0] = 21 [ 77.977039][ T9909] chnl_net:caif_netlink_parms(): no params data found [ 77.999149][ T9909] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.006754][ T9909] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.014542][ T9909] device bridge_slave_0 entered promiscuous mode [ 78.021767][ T9909] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.029072][ T9909] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.036601][ T9909] device bridge_slave_1 entered promiscuous mode [ 78.050829][ T9909] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.061683][ T9909] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.078022][ T9909] team0: Port device team_slave_0 added [ 78.084993][ T9909] team0: Port device team_slave_1 added [ 78.165717][ T9909] device hsr_slave_0 entered promiscuous mode [ 78.234452][ T9909] device hsr_slave_1 entered promiscuous mode [ 78.309899][ T9909] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.317254][ T9909] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.324713][ T9909] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.331855][ T9909] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.356508][ T9909] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.367645][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.376256][ T12] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.383822][ T12] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.391821][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.401730][ T9909] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.411285][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.419985][ T22] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.427290][ T22] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.439654][ T9912] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.448488][ T9912] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.455659][ T9912] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.472617][ T9909] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 78.483794][ T9909] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 78.496148][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.505732][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.513983][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.522574][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.531348][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.539095][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.553254][ T9909] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.854835][T10185] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 79.862689][T10185] #PF: supervisor instruction fetch in kernel mode [ 79.869434][T10185] #PF: error_code(0x0010) - not-present page [ 79.875839][T10185] PGD 8eafc067 P4D 8eafc067 PUD a51b9067 PMD 0 [ 79.882091][T10185] Oops: 0010 [#1] PREEMPT SMP KASAN [ 79.887550][T10185] CPU: 0 PID: 10185 Comm: syz-executor.0 Not tainted 5.3.0-rc7+ #0 [ 79.895955][T10185] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.906448][T10185] RIP: 0010:0x0 [ 79.909903][T10185] Code: Bad RIP value. [ 79.914141][T10185] RSP: 0018:ffff8880a3baf4d8 EFLAGS: 00010246 [ 79.920283][T10185] RAX: dffffc0000000000 RBX: ffffffff882a51a0 RCX: ffffffff85b40c56 [ 79.928353][T10185] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888090176200 [ 79.936403][T10185] RBP: ffff8880a3baf5d0 R08: ffff8880a5e1a400 R09: ffff8880a3baf658 [ 79.944571][T10185] R10: ffffed1014775ed9 R11: ffff8880a3baf6cf R12: ffff888090176200 [ 79.952704][T10185] R13: 0000000000000001 R14: ffff8880a3baf5a8 R15: ffffffff882a51a0 [ 79.960752][T10185] FS: 00007f006af10700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 79.969775][T10185] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.976765][T10185] CR2: ffffffffffffffd6 CR3: 000000008fecc000 CR4: 00000000001406f0 [ 79.985108][T10185] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.993089][T10185] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.001364][T10185] Call Trace: [ 80.004735][T10185] tc_bind_tclass+0x13e/0x2f0 [ 80.009491][T10185] ? qdisc_class_hash_init+0x110/0x110 [ 80.014942][T10185] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 80.021177][T10185] ? ns_capable_common+0x93/0x100 [ 80.026284][T10185] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 80.032014][T10185] ? qdisc_match_from_root+0x18a/0x280 [ 80.037573][T10185] tc_ctl_tclass+0xadb/0xcd0 [ 80.042193][T10185] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 80.048198][T10185] ? rtnetlink_rcv_msg+0x3d0/0xb00 [ 80.053394][T10185] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 80.058591][T10185] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 80.064913][T10185] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 80.070793][T10185] rtnetlink_rcv_msg+0x463/0xb00 [ 80.075813][T10185] ? rtnetlink_put_metrics+0x580/0x580 [ 80.081269][T10185] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 80.086634][T10185] ? __copy_skb_header+0x250/0x550 [ 80.091754][T10185] netlink_rcv_skb+0x177/0x450 [ 80.096770][T10185] ? rtnetlink_put_metrics+0x580/0x580 [ 80.102233][T10185] ? netlink_ack+0xb30/0xb30 [ 80.106963][T10185] ? netlink_deliver_tap+0x254/0xbf0 [ 80.112257][T10185] rtnetlink_rcv+0x1d/0x30 [ 80.116676][T10185] netlink_unicast+0x531/0x710 [ 80.121497][T10185] ? netlink_attachskb+0x7c0/0x7c0 [ 80.126873][T10185] ? _copy_from_iter_full+0x25d/0x8a0 [ 80.132248][T10185] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 80.138053][T10185] ? __check_object_size+0x3d/0x437 [ 80.143329][T10185] netlink_sendmsg+0x8a5/0xd60 [ 80.148315][T10185] ? netlink_unicast+0x710/0x710 [ 80.153239][T10185] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 80.158773][T10185] ? apparmor_socket_sendmsg+0x2a/0x30 [ 80.164565][T10185] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 80.170900][T10185] ? security_socket_sendmsg+0x8d/0xc0 [ 80.176342][T10185] ? netlink_unicast+0x710/0x710 [ 80.181264][T10185] sock_sendmsg+0xd7/0x130 [ 80.185685][T10185] ___sys_sendmsg+0x803/0x920 [ 80.190459][T10185] ? copy_msghdr_from_user+0x440/0x440 [ 80.195977][T10185] ? __fget+0xa3/0x560 [ 80.200332][T10185] ? __fget+0x384/0x560 [ 80.204494][T10185] ? ksys_dup3+0x3e0/0x3e0 [ 80.208919][T10185] ? __might_fault+0xfb/0x1e0 [ 80.213583][T10185] ? __fget_light+0x1a9/0x230 [ 80.218257][T10185] ? __fdget+0x1b/0x20 [ 80.222322][T10185] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 80.228804][T10185] __sys_sendmsg+0x105/0x1d0 [ 80.233564][T10185] ? __sys_sendmsg_sock+0xd0/0xd0 [ 80.238778][T10185] ? __x64_sys_clock_gettime+0x16d/0x240 [ 80.244494][T10185] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 80.250555][T10185] __x64_sys_sendmsg+0x78/0xb0 [ 80.255402][T10185] do_syscall_64+0xfd/0x6a0 [ 80.260011][T10185] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 80.266775][T10185] RIP: 0033:0x4598e9 [ 80.270670][T10185] 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 [ 80.290624][T10185] RSP: 002b:00007f006af0fc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 80.299400][T10185] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000004598e9 [ 80.307849][T10185] RDX: 0000000000000000 RSI: 0000000020000240 RDI: 0000000000000003 [ 80.315844][T10185] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 80.323806][T10185] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f006af106d4 [ 80.331778][T10185] R13: 00000000004c77fb R14: 00000000004dd098 R15: 00000000ffffffff [ 80.340053][T10185] Modules linked in: [ 80.344127][T10185] CR2: 0000000000000000 [ 80.355395][T10185] ---[ end trace a3c22c08eca4cc03 ]--- [ 80.361130][T10185] RIP: 0010:0x0 [ 80.364931][T10185] Code: Bad RIP value. [ 80.369204][T10185] RSP: 0018:ffff8880a3baf4d8 EFLAGS: 00010246 [ 80.375952][T10185] RAX: dffffc0000000000 RBX: ffffffff882a51a0 RCX: ffffffff85b40c56 [ 80.384528][T10185] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888090176200 [ 80.392938][T10185] RBP: ffff8880a3baf5d0 R08: ffff8880a5e1a400 R09: ffff8880a3baf658 [ 80.401807][T10185] R10: ffffed1014775ed9 R11: ffff8880a3baf6cf R12: ffff888090176200 [ 80.409955][T10185] R13: 0000000000000001 R14: ffff8880a3baf5a8 R15: ffffffff882a51a0 [ 80.418126][T10185] FS: 00007f006af10700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 80.427209][T10185] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 80.433878][T10185] CR2: ffffffffffffffd6 CR3: 000000008fecc000 CR4: 00000000001406e0 [ 80.442160][T10185] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 80.450271][T10185] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 80.458579][T10185] Kernel panic - not syncing: Fatal exception [ 80.466307][T10185] Kernel Offset: disabled [ 80.470649][T10185] Rebooting in 86400 seconds..