[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 68.496073][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 68.496083][ T26] audit: type=1800 audit(1567847863.494:29): pid=9759 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 [ 68.533759][ T26] audit: type=1800 audit(1567847863.494:30): pid=9759 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 '10.128.0.148' (ECDSA) to the list of known hosts. 2019/09/07 09:17:55 parsed 1 programs 2019/09/07 09:17:56 executed programs: 0 syzkaller login: [ 81.633255][ T9926] IPVS: ftp: loaded support on port[0] = 21 [ 81.681644][ T9926] chnl_net:caif_netlink_parms(): no params data found [ 81.705225][ T9926] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.712417][ T9926] bridge0: port 1(bridge_slave_0) entered disabled state [ 81.720709][ T9926] device bridge_slave_0 entered promiscuous mode [ 81.728514][ T9926] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.736396][ T9926] bridge0: port 2(bridge_slave_1) entered disabled state [ 81.744196][ T9926] device bridge_slave_1 entered promiscuous mode [ 81.758023][ T9926] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 81.768650][ T9926] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 81.784957][ T9926] team0: Port device team_slave_0 added [ 81.795153][ T9926] team0: Port device team_slave_1 added [ 81.841749][ T9926] device hsr_slave_0 entered promiscuous mode [ 81.890403][ T9926] device hsr_slave_1 entered promiscuous mode [ 81.966548][ T9926] bridge0: port 2(bridge_slave_1) entered blocking state [ 81.973925][ T9926] bridge0: port 2(bridge_slave_1) entered forwarding state [ 81.981293][ T9926] bridge0: port 1(bridge_slave_0) entered blocking state [ 81.989923][ T9926] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.014472][ T9926] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.029433][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.038121][ T3579] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.056690][ T3579] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.065030][ T3579] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 82.075283][ T9926] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.084750][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.094284][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.101466][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.111510][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.120596][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.127682][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.146630][ T9926] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 82.157717][ T9926] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 82.170142][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 82.181229][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 82.190016][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 82.198468][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 82.207118][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 82.214711][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 82.229000][ T9926] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 82.863674][T10049] netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'. [ 82.890376][T10054] BUG: kernel NULL pointer dereference, address: 0000000000000000 [ 82.898308][T10054] #PF: supervisor instruction fetch in kernel mode [ 82.904812][T10054] #PF: error_code(0x0010) - not-present page [ 82.911166][T10054] PGD 8c2c8067 P4D 8c2c8067 PUD 9f12c067 PMD 0 [ 82.917854][T10054] Oops: 0010 [#1] PREEMPT SMP KASAN [ 82.923421][T10054] CPU: 0 PID: 10054 Comm: syz-executor.0 Not tainted 5.3.0-rc7+ #0 [ 82.931795][T10054] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 82.942373][T10054] RIP: 0010:0x0 [ 82.945828][T10054] Code: Bad RIP value. [ 82.949895][T10054] RSP: 0018:ffff88808dde74c8 EFLAGS: 00010246 [ 82.956944][T10054] RAX: dffffc0000000000 RBX: ffffffff882a51a0 RCX: ffffffff85b40c56 [ 82.965073][T10054] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808e2bd500 [ 82.973036][T10054] RBP: ffff88808dde75c0 R08: ffff8880a66242c0 R09: ffff88808dde7648 [ 82.981006][T10054] R10: ffffed1011bbced7 R11: ffff88808dde76bf R12: ffff88808e2bd500 [ 82.988982][T10054] R13: 0000000000000001 R14: ffff88808dde7598 R15: ffffffff882a51a0 [ 82.998345][T10054] FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:00000000f7f69b40 [ 83.007861][T10054] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 83.014546][T10054] CR2: ffffffffffffffd6 CR3: 0000000093f08000 CR4: 00000000001406f0 [ 83.023464][T10054] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.031771][T10054] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.040121][T10054] Call Trace: [ 83.043540][T10054] tc_bind_tclass+0x13e/0x2f0 [ 83.048761][T10054] ? qdisc_class_hash_init+0x110/0x110 [ 83.054336][T10054] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.060563][T10054] ? ns_capable_common+0x93/0x100 [ 83.065586][T10054] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 83.071378][T10054] ? qdisc_match_from_root+0x18a/0x280 [ 83.076904][T10054] tc_ctl_tclass+0xadb/0xcd0 [ 83.082792][T10054] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 83.088814][T10054] ? rtnetlink_rcv_msg+0x3d0/0xb00 [ 83.093951][T10054] ? rtnetlink_rcv_msg+0x1ea/0xb00 [ 83.099319][T10054] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 83.105559][T10054] ? qdisc_tree_reduce_backlog+0x570/0x570 [ 83.111364][T10054] rtnetlink_rcv_msg+0x463/0xb00 [ 83.116287][T10054] ? rtnetlink_put_metrics+0x580/0x580 [ 83.121741][T10054] ? netdev_core_pick_tx+0x2f0/0x2f0 [ 83.127036][T10054] ? __copy_skb_header+0x250/0x550 [ 83.132151][T10054] netlink_rcv_skb+0x177/0x450 [ 83.136942][T10054] ? rtnetlink_put_metrics+0x580/0x580 [ 83.142746][T10054] ? netlink_ack+0xb30/0xb30 [ 83.147321][T10054] ? netlink_deliver_tap+0x254/0xbf0 [ 83.152588][T10054] rtnetlink_rcv+0x1d/0x30 [ 83.157162][T10054] netlink_unicast+0x531/0x710 [ 83.165640][T10054] ? netlink_attachskb+0x7c0/0x7c0 [ 83.170829][T10054] ? _copy_from_iter_full+0x25d/0x8a0 [ 83.176203][T10054] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 83.181915][T10054] ? __check_object_size+0x3d/0x437 [ 83.187370][T10054] netlink_sendmsg+0x8a5/0xd60 [ 83.192303][T10054] ? netlink_unicast+0x710/0x710 [ 83.197338][T10054] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 83.203514][T10054] ? apparmor_socket_sendmsg+0x2a/0x30 [ 83.209119][T10054] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.215566][T10054] ? security_socket_sendmsg+0x8d/0xc0 [ 83.221267][T10054] ? netlink_unicast+0x710/0x710 [ 83.226455][T10054] sock_sendmsg+0xd7/0x130 [ 83.231103][T10054] ___sys_sendmsg+0x803/0x920 [ 83.236388][T10054] ? copy_msghdr_from_user+0x440/0x440 [ 83.241948][T10054] ? __fget+0xa3/0x560 [ 83.246044][T10054] ? __fget+0x384/0x560 [ 83.250202][T10054] ? ksys_dup3+0x3e0/0x3e0 [ 83.254627][T10054] ? __might_fault+0xfb/0x1e0 [ 83.259302][T10054] ? __fget_light+0x1a9/0x230 [ 83.263998][T10054] ? __fdget+0x1b/0x20 [ 83.268059][T10054] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 83.274296][T10054] __sys_sendmsg+0x105/0x1d0 [ 83.278867][T10054] ? __sys_sendmsg_sock+0xd0/0xd0 [ 83.283878][T10054] ? __ia32_sys_clock_gettime32+0x16d/0x240 [ 83.289771][T10054] ? __x64_sys_clock_gettime32+0x240/0x240 [ 83.295698][T10054] ? entry_SYSENTER_compat+0x68/0x7f [ 83.300974][T10054] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 83.306419][T10054] do_fast_syscall_32+0x27b/0xdb3 [ 83.311604][T10054] entry_SYSENTER_compat+0x70/0x7f [ 83.316696][T10054] RIP: 0023:0xf7f6da29 [ 83.320759][T10054] Code: b8 80 96 98 00 eb cc 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 83.340354][T10054] RSP: 002b:00000000f7f690cc EFLAGS: 00000296 ORIG_RAX: 0000000000000172 [ 83.348883][T10054] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000240 [ 83.356996][T10054] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 83.365110][T10054] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 83.373803][T10054] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 83.381951][T10054] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 83.390082][T10054] Modules linked in: [ 83.393980][T10054] CR2: 0000000000000000 [ 83.400100][T10054] ---[ end trace 5ef6a96fe1950956 ]--- [ 83.405727][T10054] RIP: 0010:0x0 [ 83.409185][T10054] Code: Bad RIP value. [ 83.413518][T10054] RSP: 0018:ffff88808dde74c8 EFLAGS: 00010246 [ 83.419592][T10054] RAX: dffffc0000000000 RBX: ffffffff882a51a0 RCX: ffffffff85b40c56 [ 83.428233][T10054] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88808e2bd500 [ 83.436244][T10054] RBP: ffff88808dde75c0 R08: ffff8880a66242c0 R09: ffff88808dde7648 [ 83.444325][T10054] R10: ffffed1011bbced7 R11: ffff88808dde76bf R12: ffff88808e2bd500 [ 83.452316][T10054] R13: 0000000000000001 R14: ffff88808dde7598 R15: ffffffff882a51a0 [ 83.460602][T10054] FS: 0000000000000000(0000) GS:ffff8880ae800000(0063) knlGS:00000000f7f69b40 [ 83.469534][T10054] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 83.476142][T10054] CR2: ffffffffffffffd6 CR3: 0000000093f08000 CR4: 00000000001406f0 [ 83.484149][T10054] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.492178][T10054] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.500208][T10054] Kernel panic - not syncing: Fatal exception [ 83.507911][T10054] Kernel Offset: disabled [ 83.512367][T10054] Rebooting in 86400 seconds..