[....] 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. [ 66.467044][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 66.467054][ T26] audit: type=1800 audit(1564560323.078:29): pid=9615 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 [ 66.503836][ T26] audit: type=1800 audit(1564560323.078:30): pid=9615 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 '10.128.15.195' (ECDSA) to the list of known hosts. 2019/07/31 08:05:33 parsed 1 programs 2019/07/31 08:05:34 executed programs: 0 syzkaller login: [ 78.296280][ T9783] IPVS: ftp: loaded support on port[0] = 21 [ 78.344448][ T9783] chnl_net:caif_netlink_parms(): no params data found [ 78.366230][ T9783] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.373370][ T9783] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.381132][ T9783] device bridge_slave_0 entered promiscuous mode [ 78.388460][ T9783] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.395537][ T9783] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.403495][ T9783] device bridge_slave_1 entered promiscuous mode [ 78.417255][ T9783] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 78.427851][ T9783] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 78.443945][ T9783] team0: Port device team_slave_0 added [ 78.450912][ T9783] team0: Port device team_slave_1 added [ 78.529735][ T9783] device hsr_slave_0 entered promiscuous mode [ 78.598511][ T9783] device hsr_slave_1 entered promiscuous mode [ 78.683352][ T9783] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.690633][ T9783] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.697915][ T9783] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.705095][ T9783] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.730202][ T9783] 8021q: adding VLAN 0 to HW filter on device bond0 [ 78.741189][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 78.759895][ T22] bridge0: port 1(bridge_slave_0) entered disabled state [ 78.767580][ T22] bridge0: port 2(bridge_slave_1) entered disabled state [ 78.775295][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 78.785379][ T9783] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.794814][ T2916] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 78.803361][ T2916] bridge0: port 1(bridge_slave_0) entered blocking state [ 78.810431][ T2916] bridge0: port 1(bridge_slave_0) entered forwarding state [ 78.829650][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 78.838186][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 78.845247][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 78.853437][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 78.861977][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 78.870466][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 78.878742][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 78.887468][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 78.895906][ T9783] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 78.910599][ T9783] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.009362][ T9793] kasan: CONFIG_KASAN_INLINE enabled [ 79.014921][ T9793] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 79.023281][ T9793] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 79.030215][ T9793] CPU: 1 PID: 9793 Comm: syz-executor.0 Not tainted 5.3.0-rc2-next-20190730 #55 [ 79.039208][ T9793] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.049270][ T9793] RIP: 0010:tls_sk_proto_close+0x90/0x4a0 [ 79.054980][ T9793] Code: 3c 02 00 0f 85 dd 03 00 00 49 8b 84 24 c0 02 00 00 4d 8d 75 14 4c 89 f2 48 c1 ea 03 48 89 45 b8 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 67 03 00 00 [ 79.074606][ T9793] RSP: 0018:ffff8880931dfc70 EFLAGS: 00010203 [ 79.080699][ T9793] RAX: dffffc0000000000 RBX: 00000000fffffff0 RCX: ffffffff862d6fdc [ 79.088664][ T9793] RDX: 0000000000000002 RSI: ffffffff862d6d8d RDI: ffff8880939d6f00 [ 79.096670][ T9793] RBP: ffff8880931dfcb8 R08: ffff8880959664c0 R09: ffffed101273ad9a [ 79.104640][ T9793] R10: ffffed101273ad99 R11: ffff8880939d6ccb R12: ffff8880939d6c40 [ 79.112609][ T9793] R13: 0000000000000000 R14: 0000000000000014 R15: 0000000000000001 [ 79.120567][ T9793] FS: 000055555561a940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 79.129530][ T9793] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.136103][ T9793] CR2: 0000000000780000 CR3: 00000000a211e000 CR4: 00000000001406e0 [ 79.144060][ T9793] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.152132][ T9793] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.160088][ T9793] Call Trace: [ 79.163484][ T9793] ? _raw_spin_unlock_bh+0x31/0x40 [ 79.168590][ T9793] tls_sk_proto_close+0x2a9/0x4a0 [ 79.173693][ T9793] ? _raw_spin_unlock_bh+0x30/0x40 [ 79.178787][ T9793] ? tls_sk_proto_unhash+0x3f0/0x3f0 [ 79.184062][ T9793] tcp_bpf_close+0x17c/0x390 [ 79.188640][ T9793] inet_release+0xed/0x200 [ 79.193050][ T9793] inet6_release+0x53/0x80 [ 79.197454][ T9793] __sock_release+0xce/0x280 [ 79.202035][ T9793] sock_close+0x1e/0x30 [ 79.206312][ T9793] __fput+0x2ff/0x890 [ 79.210328][ T9793] ? __sock_release+0x280/0x280 [ 79.215180][ T9793] ____fput+0x16/0x20 [ 79.219154][ T9793] task_work_run+0x145/0x1c0 [ 79.223739][ T9793] exit_to_usermode_loop+0x316/0x380 [ 79.229123][ T9793] do_syscall_64+0x65f/0x760 [ 79.233697][ T9793] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 79.239568][ T9793] RIP: 0033:0x4134f0 [ 79.243445][ T9793] 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 9d 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 [ 79.263081][ T9793] RSP: 002b:00007ffd6ecf4dd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 79.271561][ T9793] RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00000000004134f0 [ 79.279530][ T9793] RDX: 0000001b2f220000 RSI: 0000000000000000 RDI: 0000000000000005 [ 79.287589][ T9793] RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffffffffffff [ 79.295742][ T9793] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf20 [ 79.303847][ T9793] R13: 0000000000000003 R14: 0000000000761178 R15: ffffffffffffffff [ 79.311991][ T9793] Modules linked in: [ 79.318869][ T9793] ---[ end trace 097482416b19063f ]--- [ 79.324343][ T9793] RIP: 0010:tls_sk_proto_close+0x90/0x4a0 [ 79.330504][ T9793] Code: 3c 02 00 0f 85 dd 03 00 00 49 8b 84 24 c0 02 00 00 4d 8d 75 14 4c 89 f2 48 c1 ea 03 48 89 45 b8 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 67 03 00 00 [ 79.350733][ T9793] RSP: 0018:ffff8880931dfc70 EFLAGS: 00010203 [ 79.357326][ T9793] RAX: dffffc0000000000 RBX: 00000000fffffff0 RCX: ffffffff862d6fdc [ 79.365638][ T9793] RDX: 0000000000000002 RSI: ffffffff862d6d8d RDI: ffff8880939d6f00 [ 79.373977][ T9793] RBP: ffff8880931dfcb8 R08: ffff8880959664c0 R09: ffffed101273ad9a [ 79.382472][ T9793] R10: ffffed101273ad99 R11: ffff8880939d6ccb R12: ffff8880939d6c40 [ 79.390789][ T9793] R13: 0000000000000000 R14: 0000000000000014 R15: 0000000000000001 [ 79.398789][ T9793] FS: 000055555561a940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 79.407701][ T9793] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.414407][ T9793] CR2: 0000000000780000 CR3: 00000000a211e000 CR4: 00000000001406e0 [ 79.422603][ T9793] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.430847][ T9793] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.439372][ T9793] Kernel panic - not syncing: Fatal exception [ 79.446078][ T9793] Kernel Offset: disabled [ 79.450400][ T9793] Rebooting in 86400 seconds..