[....] 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. [ 63.486892][ T26] kauditd_printk_skb: 7 callbacks suppressed [ 63.486901][ T26] audit: type=1800 audit(1567201194.559:29): pid=9679 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 [ 63.520729][ T26] audit: type=1800 audit(1567201194.559:30): pid=9679 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 '10.128.0.110' (ECDSA) to the list of known hosts. 2019/08/30 21:40:05 parsed 1 programs 2019/08/30 21:40:07 executed programs: 0 syzkaller login: [ 76.154697][ T9846] IPVS: ftp: loaded support on port[0] = 21 [ 76.198643][ T9846] chnl_net:caif_netlink_parms(): no params data found [ 76.219467][ T9846] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.226847][ T9846] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.234422][ T9846] device bridge_slave_0 entered promiscuous mode [ 76.241587][ T9846] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.248709][ T9846] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.256211][ T9846] device bridge_slave_1 entered promiscuous mode [ 76.269611][ T9846] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 76.279682][ T9846] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 76.295085][ T9846] team0: Port device team_slave_0 added [ 76.301571][ T9846] team0: Port device team_slave_1 added [ 76.355348][ T9846] device hsr_slave_0 entered promiscuous mode [ 76.393977][ T9846] device hsr_slave_1 entered promiscuous mode [ 76.448930][ T9846] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.456157][ T9846] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.463434][ T9846] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.470651][ T9846] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.494216][ T9846] 8021q: adding VLAN 0 to HW filter on device bond0 [ 76.504721][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 76.512788][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.520331][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.528098][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 76.538195][ T9846] 8021q: adding VLAN 0 to HW filter on device team0 [ 76.554435][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 76.562836][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.569916][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 76.577889][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 76.586224][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.593350][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 76.601593][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.609895][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.618582][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 76.627617][ T2829] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 76.638912][ T3613] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 76.648156][ T9846] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 76.662940][ T9846] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 79.155575][T10359] kasan: CONFIG_KASAN_INLINE enabled [ 79.160893][T10359] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 79.169942][T10359] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 79.176885][T10359] CPU: 1 PID: 10359 Comm: syz-executor.0 Not tainted 5.3.0-rc6+ #179 [ 79.184932][T10359] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.195482][T10359] RIP: 0010:tls_sk_proto_close+0xe5/0x990 [ 79.201179][T10359] 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 [ 79.220767][T10359] RSP: 0018:ffff8880985d7b90 EFLAGS: 00010203 [ 79.226817][T10359] RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffffff862cb00b [ 79.234765][T10359] RDX: 0000000000000002 RSI: ffffffff862cad69 RDI: ffff88808f532440 [ 79.242712][T10359] RBP: ffff8880985d7c48 R08: ffff88808b6524c0 R09: ffffed1011ea6442 [ 79.250657][T10359] R10: ffffed1011ea6441 R11: ffff88808f53220b R12: ffff88808f532180 [ 79.258603][T10359] R13: 0000000000000000 R14: 0000000000000014 R15: 0000000000000001 [ 79.266551][T10359] FS: 0000555556e3e940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 79.275450][T10359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.282096][T10359] CR2: 00000000008e57d0 CR3: 00000000a0beb000 CR4: 00000000001406e0 [ 79.290060][T10359] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.298008][T10359] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.305954][T10359] Call Trace: [ 79.309229][T10359] ? trace_hardirqs_on+0x67/0x240 [ 79.314234][T10359] ? wait_on_pending_writer+0x420/0x420 [ 79.319756][T10359] ? __local_bh_enable_ip+0x15a/0x270 [ 79.325100][T10359] ? _raw_spin_unlock_bh+0x31/0x40 [ 79.330280][T10359] tls_sk_proto_close+0x35b/0x990 [ 79.335309][T10359] ? wait_on_pending_writer+0x420/0x420 [ 79.340830][T10359] ? wait_on_pending_writer+0x420/0x420 [ 79.346349][T10359] ? __local_bh_enable_ip+0x15a/0x270 [ 79.351696][T10359] ? _raw_spin_unlock_bh+0x31/0x40 [ 79.356787][T10359] ? wait_on_pending_writer+0x420/0x420 [ 79.362306][T10359] tcp_bpf_close+0x17c/0x390 [ 79.366872][T10359] inet_release+0xed/0x200 [ 79.371262][T10359] inet6_release+0x53/0x80 [ 79.375653][T10359] __sock_release+0xce/0x280 [ 79.380215][T10359] sock_close+0x1e/0x30 [ 79.384350][T10359] __fput+0x2ff/0x890 [ 79.388317][T10359] ? __sock_release+0x280/0x280 [ 79.393142][T10359] ____fput+0x16/0x20 [ 79.397100][T10359] task_work_run+0x145/0x1c0 [ 79.401667][T10359] exit_to_usermode_loop+0x316/0x380 [ 79.406928][T10359] do_syscall_64+0x5a9/0x6a0 [ 79.411494][T10359] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 79.417359][T10359] RIP: 0033:0x413561 [ 79.421229][T10359] Code: 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 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 [ 79.440808][T10359] RSP: 002b:00007ffebaf74290 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 79.449195][T10359] RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000413561 [ 79.457140][T10359] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 [ 79.465090][T10359] RBP: 0000000000000000 R08: ffffffffffffffff R09: ffffffffffffffff [ 79.473043][T10359] R10: 00007ffebaf74370 R11: 0000000000000293 R12: 000000000075bfc8 [ 79.480992][T10359] R13: 0000000000013519 R14: 0000000000761550 R15: ffffffffffffffff [ 79.488941][T10359] Modules linked in: [ 79.493306][T10359] ---[ end trace d37d5417d252caf1 ]--- [ 79.498806][T10359] RIP: 0010:tls_sk_proto_close+0xe5/0x990 [ 79.505158][T10359] 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 [ 79.524804][T10359] RSP: 0018:ffff8880985d7b90 EFLAGS: 00010203 [ 79.530863][T10359] RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffffff862cb00b [ 79.538845][T10359] RDX: 0000000000000002 RSI: ffffffff862cad69 RDI: ffff88808f532440 [ 79.546871][T10359] RBP: ffff8880985d7c48 R08: ffff88808b6524c0 R09: ffffed1011ea6442 [ 79.554869][T10359] R10: ffffed1011ea6441 R11: ffff88808f53220b R12: ffff88808f532180 [ 79.562836][T10359] R13: 0000000000000000 R14: 0000000000000014 R15: 0000000000000001 [ 79.570849][T10359] FS: 0000555556e3e940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 79.579817][T10359] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 79.586414][T10359] CR2: 00000000008e57d0 CR3: 00000000a0beb000 CR4: 00000000001406e0 [ 79.594402][T10359] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 79.602447][T10359] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 79.610429][T10359] Kernel panic - not syncing: Fatal exception [ 79.617538][T10359] Kernel Offset: disabled [ 79.621857][T10359] Rebooting in 86400 seconds..