[....] 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. [ 61.917408][ T27] kauditd_printk_skb: 7 callbacks suppressed [ 61.917417][ T27] audit: type=1800 audit(1566280763.266:29): pid=9564 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 [ 61.944114][ T27] audit: type=1800 audit(1566280763.266:30): pid=9564 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 '10.128.0.186' (ECDSA) to the list of known hosts. 2019/08/20 05:59:31 parsed 1 programs 2019/08/20 05:59:32 executed programs: 0 syzkaller login: [ 71.448653][ T9734] IPVS: ftp: loaded support on port[0] = 21 [ 71.494404][ T9734] chnl_net:caif_netlink_parms(): no params data found [ 71.515582][ T9734] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.522697][ T9734] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.530144][ T9734] device bridge_slave_0 entered promiscuous mode [ 71.537125][ T9734] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.544199][ T9734] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.551615][ T9734] device bridge_slave_1 entered promiscuous mode [ 71.564943][ T9734] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.575333][ T9734] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.590821][ T9734] team0: Port device team_slave_0 added [ 71.597086][ T9734] team0: Port device team_slave_1 added [ 71.659806][ T9734] device hsr_slave_0 entered promiscuous mode [ 71.708445][ T9734] device hsr_slave_1 entered promiscuous mode [ 71.763187][ T9734] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.770245][ T9734] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.777481][ T9734] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.784619][ T9734] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.807480][ T9734] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.817404][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.836155][ T17] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.843844][ T17] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.852137][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 71.861568][ T9734] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.870489][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.878888][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.885902][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.899712][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.907907][ T22] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.914956][ T22] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.922805][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.931428][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.940723][ T3024] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.952573][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.960645][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.970213][ T9734] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.984397][ T9734] 8021q: adding VLAN 0 to HW filter on device batadv0 2019/08/20 05:59:37 executed programs: 262 [ 79.734999][T11421] ------------[ cut here ]------------ [ 79.740794][T11421] WARNING: CPU: 0 PID: 11421 at include/net/sock.h:666 smc_unhash_sk.cold+0x11/0x18 [ 79.750227][T11421] Kernel panic - not syncing: panic_on_warn set ... [ 79.756817][T11421] CPU: 0 PID: 11421 Comm: syz-executor.0 Not tainted 5.3.0-rc5+ #136 [ 79.764844][T11421] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.775670][T11421] Call Trace: [ 79.780504][T11421] dump_stack+0x172/0x1f0 [ 79.784819][T11421] ? smc_listen_work+0x1580/0x15a3 [ 79.789902][T11421] panic+0x2dc/0x755 [ 79.793769][T11421] ? add_taint.cold+0x16/0x16 [ 79.798422][T11421] ? __kasan_check_write+0x14/0x20 [ 79.803500][T11421] ? __warn.cold+0x5/0x4c [ 79.807798][T11421] ? __warn+0xe7/0x1e0 [ 79.811839][T11421] ? smc_unhash_sk.cold+0x11/0x18 [ 79.816832][T11421] __warn.cold+0x20/0x4c [ 79.821041][T11421] ? wake_up_klogd+0x99/0xd0 [ 79.825599][T11421] ? smc_unhash_sk.cold+0x11/0x18 [ 79.830594][T11421] report_bug+0x263/0x2b0 [ 79.834895][T11421] do_error_trap+0x11b/0x200 [ 79.839460][T11421] do_invalid_op+0x37/0x50 [ 79.843845][T11421] ? smc_unhash_sk.cold+0x11/0x18 [ 79.848951][T11421] invalid_op+0x23/0x30 [ 79.853079][T11421] RIP: 0010:smc_unhash_sk.cold+0x11/0x18 [ 79.859028][T11421] Code: 89 ff e8 ef 6b a6 fa e9 d7 f8 ff ff 4c 89 ff e8 e2 6b a6 fa e9 57 fa ff ff e8 08 59 6c fa 48 c7 c7 20 38 42 88 e8 d0 f9 55 fa <0f> 0b e9 ad 43 ff ff e8 f0 58 6c fa 48 c7 c7 20 38 42 88 e8 b8 f9 [ 79.878602][T11421] RSP: 0018:ffff8880900bfd00 EFLAGS: 00010282 [ 79.884640][T11421] RAX: 0000000000000024 RBX: ffff8880924520c0 RCX: 0000000000000000 [ 79.892584][T11421] RDX: 0000000000000000 RSI: ffffffff815c2456 RDI: ffffed1012017f92 [ 79.900527][T11421] RBP: ffff8880900bfd30 R08: 0000000000000024 R09: ffffed1015d060d1 [ 79.908468][T11421] R10: ffffed1015d060d0 R11: ffff8880ae830687 R12: ffff888092452140 [ 79.916408][T11421] R13: ffffffff8999dec0 R14: ffff8880924520e8 R15: 0000000000000001 [ 79.924360][T11421] ? vprintk_func+0x86/0x189 [ 79.928945][T11421] __smc_release+0x202/0x450 [ 79.933546][T11421] smc_release+0x10c/0x380 [ 79.937947][T11421] __sock_release+0xce/0x280 [ 79.942509][T11421] sock_close+0x1e/0x30 [ 79.946636][T11421] __fput+0x2ff/0x890 [ 79.950590][T11421] ? __sock_release+0x280/0x280 [ 79.955414][T11421] ____fput+0x16/0x20 [ 79.959368][T11421] task_work_run+0x145/0x1c0 [ 79.963942][T11421] exit_to_usermode_loop+0x316/0x380 [ 79.969198][T11421] do_syscall_64+0x5a9/0x6a0 [ 79.973762][T11421] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 79.979731][T11421] RIP: 0033:0x413511 [ 79.983598][T11421] 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 [ 80.003171][T11421] RSP: 002b:0000000000a6fbf0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 [ 80.011553][T11421] RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000413511 [ 80.019497][T11421] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000003 [ 80.027446][T11421] RBP: 0000000000000000 R08: ffffffffffffffff R09: ffffffffffffffff [ 80.035389][T11421] R10: 0000000000a6fcd0 R11: 0000000000000293 R12: 000000000075bfc8 [ 80.043332][T11421] R13: 0000000000013743 R14: 0000000000760290 R15: ffffffffffffffff [ 80.052315][T11421] Kernel Offset: disabled [ 80.056633][T11421] Rebooting in 86400 seconds..