[....] 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. [ 63.664421][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 63.664431][ T26] audit: type=1800 audit(1566933186.491:29): pid=9658 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 [ 63.699646][ T26] audit: type=1800 audit(1566933186.491:30): pid=9658 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 '10.128.0.249' (ECDSA) to the list of known hosts. 2019/08/27 19:13:17 parsed 1 programs 2019/08/27 19:13:19 executed programs: 0 syzkaller login: [ 76.413543][ T9830] IPVS: ftp: loaded support on port[0] = 21 [ 76.459721][ T9830] chnl_net:caif_netlink_parms(): no params data found [ 76.481602][ T9830] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.488689][ T9830] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.496499][ T9830] device bridge_slave_0 entered promiscuous mode [ 76.503979][ T9830] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.511100][ T9830] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.518595][ T9830] device bridge_slave_1 entered promiscuous mode [ 76.532881][ T9830] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.543102][ T9830] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.558354][ T9830] team0: Port device team_slave_0 added [ 76.565172][ T9830] team0: Port device team_slave_1 added [ 76.622349][ T9830] device hsr_slave_0 entered promiscuous mode [ 76.661248][ T9830] device hsr_slave_1 entered promiscuous mode [ 76.705632][ T9830] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.712716][ T9830] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.719965][ T9830] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.727024][ T9830] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.751164][ T9830] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.761333][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.769316][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.777551][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.785827][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.795928][ T9830] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.805094][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.813488][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.820506][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.829792][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.838425][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.845487][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.858427][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.867036][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.876725][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.887076][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.897814][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.907370][ T9830] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.921516][ T9830] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 76.976681][ T9840] kasan: CONFIG_KASAN_INLINE enabled [ 76.982363][ T9840] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 76.990427][ T9840] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 76.997355][ T9840] CPU: 1 PID: 9840 Comm: syz-executor.0 Not tainted 5.3.0-rc6 #127 [ 77.005220][ T9840] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.015314][ T9840] RIP: 0010:tls_sk_proto_close+0xe5/0x990 [ 77.021011][ T9840] Code: 0f 85 3f 08 00 00 49 8b 84 24 c0 02 00 00 4d 8d 75 14 4c 89 f2 48 c1 ea 03 48 89 85 50 ff ff ff 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 02 4c 89 f2 83 e2 07 38 d0 7f 08 84 c0 0f 85 2e 06 00 00 [ 77.040592][ T9840] RSP: 0018:ffff888091ea7b90 EFLAGS: 00010203 [ 77.046638][ T9840] RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffffff862cb8db [ 77.054585][ T9840] RDX: 0000000000000002 RSI: ffffffff862cb639 RDI: ffff888091a00f40 [ 77.062619][ T9840] RBP: ffff888091ea7c48 R08: ffff8880a4a42480 R09: ffffed10123401a2 [ 77.070566][ T9840] R10: ffffed10123401a1 R11: ffff888091a00d0b R12: ffff888091a00c80 [ 77.078515][ T9840] R13: 0000000000000000 R14: 0000000000000014 R15: 0000000000000001 [ 77.086464][ T9840] FS: 0000555556586940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 77.095365][ T9840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.101943][ T9840] CR2: 0000000000780000 CR3: 00000000a667f000 CR4: 00000000001406e0 [ 77.109914][ T9840] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.117881][ T9840] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.125834][ T9840] Call Trace: [ 77.129118][ T9840] ? trace_hardirqs_on+0x67/0x240 [ 77.134128][ T9840] ? wait_on_pending_writer+0x420/0x420 [ 77.139652][ T9840] ? __local_bh_enable_ip+0x15a/0x270 [ 77.145001][ T9840] ? _raw_spin_unlock_bh+0x31/0x40 [ 77.150200][ T9840] tls_sk_proto_close+0x35b/0x990 [ 77.155205][ T9840] ? wait_on_pending_writer+0x420/0x420 [ 77.160728][ T9840] ? wait_on_pending_writer+0x420/0x420 [ 77.166250][ T9840] ? __local_bh_enable_ip+0x15a/0x270 [ 77.171593][ T9840] ? _raw_spin_unlock_bh+0x31/0x40 [ 77.176701][ T9840] ? wait_on_pending_writer+0x420/0x420 [ 77.182236][ T9840] tcp_bpf_close+0x17c/0x390 [ 77.186901][ T9840] inet_release+0xed/0x200 [ 77.191302][ T9840] inet6_release+0x53/0x80 [ 77.195700][ T9840] __sock_release+0xce/0x280 [ 77.200263][ T9840] sock_close+0x1e/0x30 [ 77.204395][ T9840] __fput+0x2ff/0x890 [ 77.208354][ T9840] ? __sock_release+0x280/0x280 [ 77.213195][ T9840] ____fput+0x16/0x20 [ 77.217170][ T9840] task_work_run+0x145/0x1c0 [ 77.221746][ T9840] exit_to_usermode_loop+0x316/0x380 [ 77.227007][ T9840] do_syscall_64+0x5a9/0x6a0 [ 77.231576][ T9840] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 77.237453][ T9840] RIP: 0033:0x413540 [ 77.241329][ T9840] Code: 01 f0 ff ff 0f 83 30 1b 00 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 4d 2d 66 00 00 75 14 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff [ 77.260997][ T9840] RSP: 002b:00007ffd0dd09e58 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 77.269398][ T9840] RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000413540 [ 77.277345][ T9840] RDX: 0000001b32120000 RSI: 0000000000000000 RDI: 0000000000000005 [ 77.285288][ T9840] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffffffffffff [ 77.293234][ T9840] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf20 [ 77.301179][ T9840] R13: 0000000000000003 R14: 0000000000761178 R15: ffffffffffffffff [ 77.309128][ T9840] Modules linked in: [ 77.315621][ T9840] ---[ end trace 9acdbb9df91cebc0 ]--- [ 77.321588][ T9840] RIP: 0010:tls_sk_proto_close+0xe5/0x990 [ 77.327315][ T9840] Code: 0f 85 3f 08 00 00 49 8b 84 24 c0 02 00 00 4d 8d 75 14 4c 89 f2 48 c1 ea 03 48 89 85 50 ff ff ff 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 02 4c 89 f2 83 e2 07 38 d0 7f 08 84 c0 0f 85 2e 06 00 00 [ 77.346968][ T9840] RSP: 0018:ffff888091ea7b90 EFLAGS: 00010203 [ 77.353178][ T9840] RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffffff862cb8db [ 77.361181][ T9840] RDX: 0000000000000002 RSI: ffffffff862cb639 RDI: ffff888091a00f40 [ 77.369150][ T9840] RBP: ffff888091ea7c48 R08: ffff8880a4a42480 R09: ffffed10123401a2 [ 77.377156][ T9840] R10: ffffed10123401a1 R11: ffff888091a00d0b R12: ffff888091a00c80 [ 77.385177][ T9840] R13: 0000000000000000 R14: 0000000000000014 R15: 0000000000000001 [ 77.393342][ T9840] FS: 0000555556586940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 77.402517][ T9840] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 77.409096][ T9840] CR2: 0000000000780000 CR3: 00000000a667f000 CR4: 00000000001406e0 [ 77.417188][ T9840] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 77.425355][ T9840] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 77.433553][ T9840] Kernel panic - not syncing: Fatal exception [ 77.440772][ T9840] Kernel Offset: disabled [ 77.445089][ T9840] Rebooting in 86400 seconds..