[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 53.035574][ T27] audit: type=1800 audit(1566269246.680:25): pid=8215 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 53.078901][ T27] audit: type=1800 audit(1566269246.680:26): pid=8215 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 53.101027][ T27] audit: type=1800 audit(1566269246.680:27): pid=8215 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 '10.128.0.252' (ECDSA) to the list of known hosts. 2019/08/20 02:47:40 parsed 1 programs 2019/08/20 02:47:41 executed programs: 0 syzkaller login: [ 68.194819][ T8384] IPVS: ftp: loaded support on port[0] = 21 [ 68.250278][ T8384] chnl_net:caif_netlink_parms(): no params data found [ 68.275726][ T8384] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.283276][ T8384] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.290966][ T8384] device bridge_slave_0 entered promiscuous mode [ 68.299104][ T8384] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.306243][ T8384] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.313879][ T8384] device bridge_slave_1 entered promiscuous mode [ 68.330050][ T8384] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.340671][ T8384] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.360335][ T8384] team0: Port device team_slave_0 added [ 68.367325][ T8384] team0: Port device team_slave_1 added [ 68.434304][ T8384] device hsr_slave_0 entered promiscuous mode [ 68.483255][ T8384] device hsr_slave_1 entered promiscuous mode [ 68.539343][ T8384] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.546530][ T8384] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.554456][ T8384] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.561483][ T8384] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.591834][ T8384] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.605357][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.625584][ T22] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.634066][ T22] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.642018][ T22] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 68.654310][ T8384] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.664730][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.673347][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.680364][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.701762][ T8384] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 68.712919][ T8384] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 68.726286][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.735026][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.742048][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.750405][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.761881][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.771073][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.779729][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.791494][ T8389] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.799234][ T8389] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.812008][ T8384] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.617003][ T8685] ------------[ cut here ]------------ [ 70.623067][ T8685] WARNING: CPU: 0 PID: 8685 at include/net/sock.h:666 smc_unhash_sk.cold+0x11/0x18 [ 70.632337][ T8685] Kernel panic - not syncing: panic_on_warn set ... [ 70.638904][ T8685] CPU: 0 PID: 8685 Comm: syz-executor.0 Not tainted 5.3.0-rc5-next-20190819 #68 [ 70.647889][ T8685] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.657923][ T8685] Call Trace: [ 70.661287][ T8685] dump_stack+0x172/0x1f0 [ 70.665601][ T8685] ? smc_listen_work+0x1580/0x15ac [ 70.670711][ T8685] panic+0x2dc/0x755 [ 70.674596][ T8685] ? add_taint.cold+0x16/0x16 [ 70.679249][ T8685] ? __kasan_check_write+0x14/0x20 [ 70.684330][ T8685] ? __warn.cold+0x5/0x4c [ 70.688631][ T8685] ? __warn+0xe7/0x1e0 [ 70.692687][ T8685] ? smc_unhash_sk.cold+0x11/0x18 [ 70.697684][ T8685] __warn.cold+0x20/0x4c [ 70.701897][ T8685] ? wake_up_klogd+0x99/0xd0 [ 70.706454][ T8685] ? smc_unhash_sk.cold+0x11/0x18 [ 70.711589][ T8685] report_bug+0x263/0x2b0 [ 70.715893][ T8685] do_error_trap+0x11b/0x200 [ 70.720461][ T8685] do_invalid_op+0x37/0x50 [ 70.724848][ T8685] ? smc_unhash_sk.cold+0x11/0x18 [ 70.729857][ T8685] invalid_op+0x23/0x30 [ 70.733986][ T8685] RIP: 0010:smc_unhash_sk.cold+0x11/0x18 [ 70.739590][ T8685] Code: 89 ff e8 26 1e a1 fa e9 ce f8 ff ff 4c 89 ff e8 19 1e a1 fa e9 4e fa ff ff e8 3f 2e 66 fa 48 c7 c7 e0 43 63 88 e8 47 a4 4f fa <0f> 0b e9 94 43 ff ff e8 27 2e 66 fa 48 c7 c7 e0 43 63 88 e8 2f a4 [ 70.759164][ T8685] RSP: 0018:ffff88809184fad0 EFLAGS: 00010282 [ 70.765197][ T8685] RAX: 0000000000000024 RBX: ffff88808e958a00 RCX: 0000000000000000 [ 70.773139][ T8685] RDX: 0000000000000000 RSI: ffffffff815bb9f6 RDI: ffffed1012309f4c [ 70.781081][ T8685] RBP: ffff88809184fb00 R08: 0000000000000024 R09: ffffed1015d060d9 [ 70.789023][ T8685] R10: ffffed1015d060d8 R11: ffff8880ae8306c7 R12: ffff88808e958a80 [ 70.796983][ T8685] R13: ffffffff89baff00 R14: ffff88808e958a28 R15: 0000000000000001 [ 70.804943][ T8685] ? vprintk_func+0x86/0x189 [ 70.809512][ T8685] __smc_release+0x202/0x450 [ 70.814075][ T8685] smc_release+0x10c/0x380 [ 70.818475][ T8685] __sock_release+0xce/0x280 [ 70.823037][ T8685] sock_close+0x1e/0x30 [ 70.827164][ T8685] __fput+0x2ff/0x890 [ 70.831117][ T8685] ? __sock_release+0x280/0x280 [ 70.835942][ T8685] ____fput+0x16/0x20 [ 70.839896][ T8685] task_work_run+0x145/0x1c0 [ 70.844459][ T8685] get_signal+0x2078/0x2500 [ 70.848932][ T8685] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 70.855143][ T8685] ? debug_smp_processor_id+0x3c/0x214 [ 70.860573][ T8685] ? kick_process+0xef/0x180 [ 70.865146][ T8685] do_signal+0x87/0x1700 [ 70.869360][ T8685] ? fput+0x1b/0x20 [ 70.873146][ T8685] ? __sys_connect+0x12d/0x330 [ 70.877882][ T8685] ? setup_sigcontext+0x7d0/0x7d0 [ 70.882875][ T8685] ? put_timespec64+0xda/0x140 [ 70.887614][ T8685] ? exit_to_usermode_loop+0x43/0x380 [ 70.892955][ T8685] ? do_syscall_64+0x65f/0x760 [ 70.897686][ T8685] ? exit_to_usermode_loop+0x43/0x380 [ 70.903026][ T8685] ? lockdep_hardirqs_on+0x418/0x5d0 [ 70.908291][ T8685] ? trace_hardirqs_on+0x67/0x240 [ 70.913305][ T8685] exit_to_usermode_loop+0x286/0x380 [ 70.918566][ T8685] do_syscall_64+0x65f/0x760 [ 70.923129][ T8685] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 70.928987][ T8685] RIP: 0033:0x459829 [ 70.932851][ T8685] Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 70.952529][ T8685] RSP: 002b:00007fa77cd93c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 70.960906][ T8685] RAX: ffffffffffffff8d RBX: 0000000000000003 RCX: 0000000000459829 [ 70.968844][ T8685] RDX: 0000000000000010 RSI: 0000000020000080 RDI: 0000000000000003 [ 70.976791][ T8685] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 70.984731][ T8685] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa77cd946d4 [ 70.992670][ T8685] R13: 00000000004bfd64 R14: 00000000004d1b60 R15: 00000000ffffffff [ 71.001970][ T8685] Kernel Offset: disabled [ 71.006377][ T8685] Rebooting in 86400 seconds..