[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 39.838290][ T26] audit: type=1800 audit(1557241676.750:25): pid=7858 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 39.874908][ T26] audit: type=1800 audit(1557241676.750:26): pid=7858 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 39.896722][ T26] audit: type=1800 audit(1557241676.750:27): pid=7858 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?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 '10.128.0.44' (ECDSA) to the list of known hosts. 2019/05/07 15:08:09 parsed 1 programs 2019/05/07 15:08:12 executed programs: 0 syzkaller login: [ 56.084729][ T8023] IPVS: ftp: loaded support on port[0] = 21 [ 56.150464][ T8023] chnl_net:caif_netlink_parms(): no params data found [ 56.183601][ T8023] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.191389][ T8023] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.199316][ T8023] device bridge_slave_0 entered promiscuous mode [ 56.208668][ T8023] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.219317][ T8023] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.227056][ T8023] device bridge_slave_1 entered promiscuous mode [ 56.244693][ T8023] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 56.255253][ T8023] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 56.275094][ T8023] team0: Port device team_slave_0 added [ 56.282659][ T8023] team0: Port device team_slave_1 added [ 56.358557][ T8023] device hsr_slave_0 entered promiscuous mode [ 56.426372][ T8023] device hsr_slave_1 entered promiscuous mode [ 56.494281][ T8023] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.503233][ T8023] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.511116][ T8023] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.518253][ T8023] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.556007][ T8023] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.572550][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.583763][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.592981][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.602741][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 56.624050][ T8023] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.635415][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.644448][ T2879] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.651942][ T2879] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.667766][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.677157][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.684411][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.707202][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.717777][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.727430][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.735949][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.746859][ T8023] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.754968][ T2879] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.775179][ T8023] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.845863][ T8031] WARNING: CPU: 1 PID: 8031 at net/netfilter/x_tables.c:654 xt_compat_add_offset+0x22a/0x290 [ 56.856734][ T8031] Kernel panic - not syncing: panic_on_warn set ... [ 56.863658][ T8031] CPU: 1 PID: 8031 Comm: syz-executor.0 Not tainted 5.1.0+ #1 [ 56.871328][ T8031] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 56.881412][ T8031] Call Trace: [ 56.884854][ T8031] dump_stack+0x172/0x1f0 [ 56.889584][ T8031] ? xt_compat_add_offset+0x180/0x290 [ 56.895133][ T8031] panic+0x2cb/0x65c [ 56.899067][ T8031] ? __warn_printk+0xf3/0xf3 [ 56.903779][ T8031] ? xt_compat_add_offset+0x22a/0x290 [ 56.909189][ T8031] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 56.916123][ T8031] ? __warn.cold+0x5/0x45 [ 56.920890][ T8031] ? __warn+0xe8/0x1d0 [ 56.925143][ T8031] ? xt_compat_add_offset+0x22a/0x290 [ 56.930695][ T8031] __warn.cold+0x20/0x45 [ 56.935108][ T8031] ? lock_downgrade+0x880/0x880 [ 56.939996][ T8031] ? xt_compat_add_offset+0x22a/0x290 [ 56.945410][ T8031] report_bug+0x263/0x2b0 [ 56.949874][ T8031] do_error_trap+0x11b/0x200 [ 56.954860][ T8031] do_invalid_op+0x37/0x50 [ 56.959455][ T8031] ? xt_compat_add_offset+0x22a/0x290 [ 56.965008][ T8031] invalid_op+0x14/0x20 [ 56.969488][ T8031] RIP: 0010:xt_compat_add_offset+0x22a/0x290 [ 56.977130][ T8031] Code: 00 01 e8 89 47 b2 fb 44 89 e0 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 72 47 b2 fb 0f 0b e9 56 fe ff ff e8 66 47 b2 fb <0f> 0b 41 bc f4 ff ff ff eb ce 4c 89 f7 e8 c4 45 ea fb e9 75 ff ff [ 56.999378][ T8031] RSP: 0018:ffff8880887bf8d8 EFLAGS: 00010293 [ 57.006394][ T8031] RAX: ffff8880a5f94040 RBX: ffff88809b54cd10 RCX: ffffffff85be2af2 [ 57.014405][ T8031] RDX: 0000000000000000 RSI: ffffffff85be2caa RDI: ffff88809b54ce30 [ 57.022603][ T8031] RBP: ffff8880887bf908 R08: ffff8880a5f94040 R09: ffffed10136a99b7 [ 57.030745][ T8031] R10: ffffed10136a99b6 R11: ffff88809b54cdb7 R12: 000000000000000c [ 57.039652][ T8031] R13: 0000000000000030 R14: ffff8880a5f94040 R15: 0000000000000000 [ 57.048216][ T8031] ? xt_compat_add_offset+0x72/0x290 [ 57.053532][ T8031] ? xt_compat_add_offset+0x22a/0x290 [ 57.059342][ T8031] ? xt_compat_add_offset+0x22a/0x290 [ 57.065238][ T8031] ? xt_request_find_target+0x68/0x110 [ 57.071264][ T8031] compat_copy_entries+0x52d/0x1390 [ 57.076505][ T8031] ? compat_table_info+0x670/0x670 [ 57.081831][ T8031] compat_do_replace+0x3b3/0x680 [ 57.086885][ T8031] ? refcount_dec_not_one+0x1f0/0x1f0 [ 57.092752][ T8031] ? do_ebt_set_ctl+0x110/0x110 [ 57.097892][ T8031] ? refcount_dec_and_test_checked+0x1b/0x20 [ 57.104714][ T8031] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 57.111244][ T8031] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 57.118323][ T8031] ? ns_capable_common+0x93/0x100 [ 57.123866][ T8031] compat_do_ebt_set_ctl+0x229/0x278 [ 57.129264][ T8031] ? compat_do_replace+0x680/0x680 [ 57.135018][ T8031] ? wait_for_completion+0x440/0x440 [ 57.140983][ T8031] ? mutex_unlock+0xd/0x10 [ 57.145647][ T8031] ? nf_sockopt_find.constprop.0+0x226/0x290 [ 57.152020][ T8031] compat_nf_setsockopt+0x9b/0x140 [ 57.157256][ T8031] ? compat_do_replace+0x680/0x680 [ 57.162997][ T8031] compat_ip_setsockopt+0x106/0x140 [ 57.168456][ T8031] compat_udp_setsockopt+0x68/0xb0 [ 57.173607][ T8031] compat_sock_common_setsockopt+0xb4/0x150 [ 57.179829][ T8031] ? udp_lib_setsockopt+0x9c0/0x9c0 [ 57.185431][ T8031] __compat_sys_setsockopt+0x181/0x380 [ 57.191088][ T8031] ? sock_common_setsockopt+0xe0/0xe0 [ 57.196496][ T8031] ? compat_sock_get_timestampns+0x220/0x220 [ 57.202707][ T8031] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 57.208373][ T8031] ? do_fast_syscall_32+0xd1/0xc98 [ 57.213705][ T8031] ? entry_SYSENTER_compat+0x70/0x7f [ 57.219107][ T8031] ? do_fast_syscall_32+0xd1/0xc98 [ 57.224340][ T8031] __ia32_compat_sys_setsockopt+0xbd/0x150 [ 57.230272][ T8031] do_fast_syscall_32+0x281/0xc98 [ 57.235327][ T8031] entry_SYSENTER_compat+0x70/0x7f [ 57.240487][ T8031] RIP: 0023:0xf7fae849 [ 57.244681][ T8031] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 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 [ 57.264531][ T8031] RSP: 002b:00000000f7faa0cc EFLAGS: 00000296 ORIG_RAX: 000000000000016e [ 57.272975][ T8031] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 57.281105][ T8031] RDX: 0000000000000080 RSI: 0000000020000040 RDI: 000000000000024c [ 57.289271][ T8031] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 57.297553][ T8031] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 57.305676][ T8031] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 57.315279][ T8031] Kernel Offset: disabled [ 57.320149][ T8031] Rebooting in 86400 seconds..