[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 55.645040][ T26] audit: type=1800 audit(1571198463.694:25): pid=8659 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 55.686911][ T26] audit: type=1800 audit(1571198463.694:26): pid=8659 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 55.725154][ T26] audit: type=1800 audit(1571198463.694:27): pid=8659 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 '10.128.10.57' (ECDSA) to the list of known hosts. syzkaller login: [ 135.008410][ T8813] IPVS: ftp: loaded support on port[0] = 21 [ 135.062635][ T8813] chnl_net:caif_netlink_parms(): no params data found [ 135.088799][ T8813] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.096213][ T8813] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.104616][ T8813] device bridge_slave_0 entered promiscuous mode [ 135.112559][ T8813] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.119772][ T8813] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.127396][ T8813] device bridge_slave_1 entered promiscuous mode [ 135.143910][ T8813] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 135.154724][ T8813] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 135.173547][ T8813] team0: Port device team_slave_0 added [ 135.180720][ T8813] team0: Port device team_slave_1 added [ 135.258578][ T8813] device hsr_slave_0 entered promiscuous mode [ 135.347266][ T8813] device hsr_slave_1 entered promiscuous mode [ 135.424036][ T8813] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.431230][ T8813] bridge0: port 2(bridge_slave_1) entered forwarding state [ 135.439038][ T8813] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.446081][ T8813] bridge0: port 1(bridge_slave_0) entered forwarding state [ 135.478354][ T8813] 8021q: adding VLAN 0 to HW filter on device bond0 [ 135.489879][ T3009] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 135.499891][ T3009] bridge0: port 1(bridge_slave_0) entered disabled state [ 135.509044][ T3009] bridge0: port 2(bridge_slave_1) entered disabled state [ 135.518652][ T3009] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 135.530412][ T8813] 8021q: adding VLAN 0 to HW filter on device team0 [ 135.541077][ T3009] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 135.549569][ T3009] bridge0: port 1(bridge_slave_0) entered blocking state [ 135.556713][ T3009] bridge0: port 1(bridge_slave_0) entered forwarding state [ 135.567314][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 135.575654][ T17] bridge0: port 2(bridge_slave_1) entered blocking state [ 135.582752][ T17] bridge0: port 2(bridge_slave_1) entered forwarding state [ 135.603247][ T8813] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 135.614135][ T8813] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 135.628557][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 135.637321][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 135.645559][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 135.654135][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 135.662592][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 135.670327][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 135.685838][ T8813] 8021q: adding VLAN 0 to HW filter on device batadv0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 173.836745][ T9704] kasan: CONFIG_KASAN_INLINE enabled [ 173.842265][ T9704] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 173.866800][ T9704] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 173.873779][ T9704] CPU: 0 PID: 9704 Comm: syz-executor221 Not tainted 5.4.0-rc1+ #0 [ 173.881660][ T9704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 173.891833][ T9704] RIP: 0010:find_match+0x132/0xd70 [ 173.896937][ T9704] Code: 0f b6 75 b0 40 84 f6 0f 84 ad 01 00 00 e8 46 53 25 fb 49 8d bf 3c 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 15 [ 173.916533][ T9704] RSP: 0018:ffff88808f7a6da8 EFLAGS: 00010207 [ 173.922593][ T9704] RAX: dffffc0000000000 RBX: ffff888096ddd0e0 RCX: ffffffff864dc54b [ 173.930556][ T9704] RDX: 0000000000000047 RSI: ffffffff864dc36a RDI: 000000000000023c [ 173.938521][ T9704] RBP: ffff88808f7a6e08 R08: ffff88808d05e300 R09: ffffed1015d06b75 [ 173.946670][ T9704] R10: ffffed1015d06b74 R11: ffff8880ae835ba3 R12: 0000000000000003 [ 173.954632][ T9704] R13: ffff88808f7a7008 R14: ffff888096ddd0ef R15: 0000000000000000 [ 173.963030][ T9704] FS: 00007f7643e60700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 173.971944][ T9704] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 173.978501][ T9704] CR2: 0000000020000040 CR3: 00000000a8989000 CR4: 00000000001406f0 [ 173.986448][ T9704] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 173.994395][ T9704] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 174.002342][ T9704] Call Trace: [ 174.005618][ T9704] ? rcu_read_lock_held_common+0x130/0x130 [ 174.011406][ T9704] __find_rr_leaf+0x14e/0x750 [ 174.016064][ T9704] ? nexthop_is_blackhole+0x690/0x690 [ 174.021412][ T9704] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 174.027644][ T9704] ? rcu_read_lock_held+0x9c/0xb0 [ 174.032644][ T9704] ? rcu_read_lock_held_common+0x130/0x130 [ 174.038427][ T9704] fib6_table_lookup+0x697/0xdb0 [ 174.043343][ T9704] ? rt6_age_exceptions+0x130/0x130 [ 174.048539][ T9704] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 174.054762][ T9704] ? __kasan_check_read+0x11/0x20 [ 174.059771][ T9704] ip6_pol_route+0x1f6/0xaf0 [ 174.064346][ T9704] ? ip6_pol_route_lookup+0x1240/0x1240 [ 174.069876][ T9704] ? __kasan_check_read+0x11/0x20 [ 174.074875][ T9704] ? mark_lock+0xc2/0x1220 [ 174.079266][ T9704] ip6_pol_route_output+0x54/0x70 [ 174.084279][ T9704] fib6_rule_lookup+0x133/0x7d0 [ 174.089160][ T9704] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 174.095389][ T9704] ? ip6_pol_route_input+0x80/0x80 [ 174.100484][ T9704] ? fib6_lookup+0x340/0x340 [ 174.105068][ T9704] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 174.111198][ T9704] ? rcu_read_lock_held+0x9c/0xb0 [ 174.116197][ T9704] ? rcu_read_lock_held_common+0x130/0x130 [ 174.121976][ T9704] ? ip6_finish_output2+0x106d/0x2550 [ 174.127322][ T9704] ? trace_hardirqs_on+0x67/0x240 [ 174.132324][ T9704] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 174.138368][ T9704] ip6_route_output_flags_noref+0x2d6/0x360 [ 174.144236][ T9704] ip6_route_output_flags+0x106/0x4d0 [ 174.149582][ T9704] ? ip6_dst_check+0x710/0x710 [ 174.154335][ T9704] ? __kasan_check_read+0x11/0x20 [ 174.159333][ T9704] ? __lock_acquire+0x8a0/0x4a00 [ 174.164245][ T9704] ip6_dst_lookup_tail+0x571/0x1ef0 [ 174.169420][ T9704] ? sk_dst_check+0x273/0x570 [ 174.174086][ T9704] ? find_held_lock+0x35/0x130 [ 174.178827][ T9704] ? ip6_frag_next+0xb20/0xb20 [ 174.183576][ T9704] ? lock_downgrade+0x920/0x920 [ 174.188415][ T9704] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 174.194635][ T9704] ? __kasan_check_read+0x11/0x20 [ 174.200156][ T9704] ip6_dst_lookup_flow+0xa8/0x220 [ 174.205155][ T9704] ? ip6_dst_lookup+0x70/0x70 [ 174.209806][ T9704] ? udpv6_sendmsg+0x115e/0x2990 [ 174.214719][ T9704] ? find_held_lock+0x35/0x130 [ 174.219471][ T9704] ip6_sk_dst_lookup_flow+0x62a/0xb90 [ 174.224818][ T9704] ? ip6_dst_lookup_flow+0x220/0x220 [ 174.230076][ T9704] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 174.236292][ T9704] ? __kasan_check_read+0x11/0x20 [ 174.241306][ T9704] udpv6_sendmsg+0x17b4/0x2990 [ 174.246116][ T9704] ? ip_reply_glue_bits+0xc0/0xc0 [ 174.251140][ T9704] ? udp_v6_get_port+0x6b0/0x6b0 [ 174.256063][ T9704] ? __might_fault+0x12b/0x1e0 [ 174.260938][ T9704] ? find_held_lock+0x35/0x130 [ 174.265681][ T9704] ? __might_fault+0x12b/0x1e0 [ 174.270424][ T9704] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 174.276644][ T9704] ? rw_copy_check_uvector+0x2ce/0x390 [ 174.282091][ T9704] ? ___might_sleep+0x163/0x2c0 [ 174.286918][ T9704] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 174.293134][ T9704] ? aa_label_sk_perm+0x91/0xf0 [ 174.297964][ T9704] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 174.304437][ T9704] ? aa_sk_perm+0x288/0x880 [ 174.308930][ T9704] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 174.314454][ T9704] inet6_sendmsg+0x9e/0xe0 [ 174.318858][ T9704] ? inet6_sendmsg+0x9e/0xe0 [ 174.323434][ T9704] ? inet6_ioctl+0x1c0/0x1c0 [ 174.328001][ T9704] sock_sendmsg+0xd7/0x130 [ 174.332391][ T9704] ___sys_sendmsg+0x3e2/0x920 [ 174.337044][ T9704] ? copy_msghdr_from_user+0x440/0x440 [ 174.342480][ T9704] ? __kasan_check_read+0x11/0x20 [ 174.347479][ T9704] ? __lock_acquire+0x16f2/0x4a00 [ 174.352490][ T9704] ? __kasan_check_read+0x11/0x20 [ 174.357490][ T9704] ? __might_fault+0x12b/0x1e0 [ 174.362228][ T9704] ? find_held_lock+0x35/0x130 [ 174.366966][ T9704] ? __might_fault+0x12b/0x1e0 [ 174.371719][ T9704] ? ksys_dup3+0x3e0/0x3e0 [ 174.376109][ T9704] ? lock_downgrade+0x920/0x920 [ 174.380943][ T9704] ? ___might_sleep+0x163/0x2c0 [ 174.385769][ T9704] __sys_sendmmsg+0x1bf/0x4d0 [ 174.390440][ T9704] ? __ia32_sys_sendmsg+0xb0/0xb0 [ 174.395443][ T9704] ? release_sock+0x156/0x1c0 [ 174.400098][ T9704] ? __sys_connect+0x12d/0x330 [ 174.404835][ T9704] ? __ia32_sys_accept+0xb0/0xb0 [ 174.409752][ T9704] ? __x64_sys_futex+0x404/0x590 [ 174.414663][ T9704] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 174.420880][ T9704] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 174.426311][ T9704] ? trace_hardirqs_on_thunk+0x1a/0x20 [ 174.431743][ T9704] ? do_syscall_64+0x26/0x760 [ 174.436397][ T9704] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 174.442438][ T9704] ? do_syscall_64+0x26/0x760 [ 174.447112][ T9704] __x64_sys_sendmmsg+0x9d/0x100 [ 174.452026][ T9704] do_syscall_64+0xfa/0x760 [ 174.456518][ T9704] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 174.462406][ T9704] RIP: 0033:0x448c89 [ 174.466277][ T9704] Code: e8 cc 14 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 5b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 174.485854][ T9704] RSP: 002b:00007f7643e5fd98 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 [ 174.494252][ T9704] RAX: ffffffffffffffda RBX: 00000000006e49e8 RCX: 0000000000448c89 [ 174.502198][ T9704] RDX: 00000000000000c6 RSI: 0000000020006d00 RDI: 0000000000000004 [ 174.510143][ T9704] RBP: 00000000006e49e0 R08: 0000000000000000 R09: 0000000000000000 [ 174.518088][ T9704] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006e49ec [ 174.526034][ T9704] R13: 300300306d616574 R14: 0000000000000000 R15: 010000306d616574 [ 174.533983][ T9704] Modules linked in: [ 174.544151][ T9704] ---[ end trace 68a77d6dc5778ec6 ]--- [ 174.550236][ T9704] RIP: 0010:find_match+0x132/0xd70 [ 174.555698][ T9704] Code: 0f b6 75 b0 40 84 f6 0f 84 ad 01 00 00 e8 46 53 25 fb 49 8d bf 3c 02 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 15 [ 174.576162][ T9704] RSP: 0018:ffff88808f7a6da8 EFLAGS: 00010207 [ 174.582547][ T9704] RAX: dffffc0000000000 RBX: ffff888096ddd0e0 RCX: ffffffff864dc54b [ 174.591158][ T9704] RDX: 0000000000000047 RSI: ffffffff864dc36a RDI: 000000000000023c [ 174.599341][ T9704] RBP: ffff88808f7a6e08 R08: ffff88808d05e300 R09: ffffed1015d06b75 [ 174.607942][ T9704] R10: ffffed1015d06b74 R11: ffff8880ae835ba3 R12: 0000000000000003 [ 174.615945][ T9704] R13: ffff88808f7a7008 R14: ffff888096ddd0ef R15: 0000000000000000 [ 174.624262][ T9704] FS: 00007f7643e60700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 174.634752][ T9704] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 174.641605][ T9704] CR2: 00000000004ae4f0 CR3: 00000000a8989000 CR4: 00000000001406e0 [ 174.650215][ T9704] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 174.658405][ T9704] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 174.666411][ T9704] Kernel panic - not syncing: Fatal exception [ 174.673764][ T9704] Kernel Offset: disabled [ 174.678093][ T9704] Rebooting in 86400 seconds..