[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 19.700372] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 24.021491] random: sshd: uninitialized urandom read (32 bytes read) [ 24.412466] random: sshd: uninitialized urandom read (32 bytes read) [ 25.242329] random: sshd: uninitialized urandom read (32 bytes read) [ 25.394481] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.31' (ECDSA) to the list of known hosts. [ 30.849836] random: sshd: uninitialized urandom read (32 bytes read) 2018/06/17 13:00:26 parsed 1 programs [ 32.364676] random: cc1: uninitialized urandom read (8 bytes read) 2018/06/17 13:00:28 executed programs: 0 [ 33.178691] IPVS: ftp: loaded support on port[0] = 21 [ 33.367435] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.373874] bridge0: port 1(bridge_slave_0) entered disabled state [ 33.381353] device bridge_slave_0 entered promiscuous mode [ 33.402588] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.409062] bridge0: port 2(bridge_slave_1) entered disabled state [ 33.416065] device bridge_slave_1 entered promiscuous mode [ 33.430983] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 33.446620] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 33.487074] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 33.504421] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 33.564852] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 33.572152] team0: Port device team_slave_0 added [ 33.586340] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 33.593902] team0: Port device team_slave_1 added [ 33.608623] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 33.625379] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 33.642224] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 33.658590] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 33.773411] bridge0: port 2(bridge_slave_1) entered blocking state [ 33.779834] bridge0: port 2(bridge_slave_1) entered forwarding state [ 33.786759] bridge0: port 1(bridge_slave_0) entered blocking state [ 33.793111] bridge0: port 1(bridge_slave_0) entered forwarding state [ 34.186786] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 34.192888] 8021q: adding VLAN 0 to HW filter on device bond0 [ 34.234151] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 34.275455] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 34.283680] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 34.322143] 8021q: adding VLAN 0 to HW filter on device team0 [ 34.570386] WARNING: CPU: 0 PID: 4799 at include/net/sock.h:644 smc_unhash_sk+0x357/0x4b0 [ 34.578790] Kernel panic - not syncing: panic_on_warn set ... [ 34.578790] [ 34.586162] CPU: 0 PID: 4799 Comm: syz-executor0 Not tainted 4.18.0-rc1+ #10 [ 34.593333] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.602695] Call Trace: [ 34.605270] dump_stack+0x1c9/0x2b4 [ 34.608883] ? dump_stack_print_info.cold.2+0x52/0x52 [ 34.614065] panic+0x238/0x4e7 [ 34.617243] ? add_taint.cold.5+0x16/0x16 [ 34.621376] ? __warn.cold.8+0x148/0x1ba [ 34.625419] ? __warn.cold.8+0x117/0x1ba [ 34.629464] ? smc_unhash_sk+0x357/0x4b0 [ 34.633506] __warn.cold.8+0x163/0x1ba [ 34.637373] ? smc_unhash_sk+0x357/0x4b0 [ 34.641414] report_bug+0x252/0x2d0 [ 34.645036] do_error_trap+0x1fc/0x4d0 [ 34.648904] ? math_error+0x3f0/0x3f0 [ 34.652690] ? lock_acquire+0x278/0x540 [ 34.656650] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.661480] do_invalid_op+0x1b/0x20 [ 34.665188] invalid_op+0x14/0x20 [ 34.668623] RIP: 0010:smc_unhash_sk+0x357/0x4b0 [ 34.673269] Code: 48 8b 45 d0 65 48 33 04 25 28 00 00 00 0f 85 88 00 00 00 48 81 c4 c0 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 69 d9 1b fa <0f> 0b e9 47 ff ff ff 4c 89 ff 48 89 85 28 ff ff ff e8 43 a4 59 fa [ 34.692440] RSP: 0018:ffff8801aaf57430 EFLAGS: 00010293 [ 34.697791] RAX: ffff8801aa8de440 RBX: ffff8801d4855800 RCX: ffffffff875fd076 [ 34.705050] RDX: 0000000000000000 RSI: ffffffff875fd137 RDI: 0000000000000005 [ 34.712306] RBP: ffff8801aaf57518 R08: ffff8801aa8de440 R09: ffffed003a90ab10 [ 34.719567] R10: ffffed003a90ab10 R11: ffff8801d4855883 R12: 1ffff100355eae8a [ 34.727386] R13: ffff8801aaf574f0 R14: ffffffff89934540 R15: ffff8801d4855880 [ 34.734652] ? smc_unhash_sk+0x296/0x4b0 [ 34.738694] ? smc_unhash_sk+0x357/0x4b0 [ 34.742739] ? smc_rx_data_available+0x120/0x120 [ 34.747490] ? release_sock+0x1ec/0x2c0 [ 34.751454] ? __local_bh_enable_ip+0x161/0x230 [ 34.756106] ? __release_sock+0x3a0/0x3a0 [ 34.760234] ? smc_release+0x269/0x610 [ 34.764102] ? trace_hardirqs_on+0xd/0x10 [ 34.768228] ? __local_bh_enable_ip+0x161/0x230 [ 34.772880] smc_release+0x36e/0x610 [ 34.776577] __sock_release+0xd7/0x260 [ 34.780452] ? __sock_release+0x260/0x260 [ 34.784578] sock_close+0x19/0x20 [ 34.788018] __fput+0x35b/0x8b0 [ 34.791290] ? fput+0x1a0/0x1a0 [ 34.794553] ? _raw_spin_unlock_irq+0x27/0x70 [ 34.799041] ____fput+0x15/0x20 [ 34.802311] task_work_run+0x1ec/0x2a0 [ 34.806188] ? task_work_cancel+0x250/0x250 [ 34.810491] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 34.816016] ? switch_task_namespaces+0xa2/0xd0 [ 34.820688] do_exit+0x1b08/0x2750 [ 34.824211] ? mm_update_next_owner+0x9a0/0x9a0 [ 34.828871] ? lock_pin_lock+0x350/0x350 [ 34.832923] ? do_futex+0x249/0x27d0 [ 34.836615] ? rcu_report_qs_rnp+0x7a0/0x7a0 [ 34.841013] ? exit_robust_list+0x290/0x290 [ 34.845336] ? check_usage_backwards+0x164/0x3d0 [ 34.850077] ? __kernel_text_address+0xd/0x40 [ 34.854575] ? print_shortest_lock_dependencies+0x80/0x80 [ 34.860104] ? graph_lock+0x170/0x170 [ 34.863887] ? graph_lock+0x170/0x170 [ 34.867674] ? find_held_lock+0x36/0x1c0 [ 34.871735] ? lock_downgrade+0x8f0/0x8f0 [ 34.875872] ? lock_downgrade+0x8f0/0x8f0 [ 34.880005] ? kasan_check_read+0x11/0x20 [ 34.884145] ? do_raw_spin_unlock+0xa7/0x2f0 [ 34.888537] ? __local_bh_enable_ip+0x161/0x230 [ 34.893189] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 34.898186] ? release_sock+0x1ec/0x2c0 [ 34.902148] ? trace_hardirqs_on+0xd/0x10 [ 34.906278] ? __local_bh_enable_ip+0x161/0x230 [ 34.910928] ? _raw_spin_unlock_bh+0x30/0x40 [ 34.915323] ? release_sock+0x1ec/0x2c0 [ 34.919285] ? __release_sock+0x3a0/0x3a0 [ 34.923417] ? __local_bh_enable_ip+0x161/0x230 [ 34.928070] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 34.933588] ? fput+0x130/0x1a0 [ 34.936847] ? __ia32_compat_sys_futex+0x3e6/0x5f0 [ 34.941759] do_group_exit+0x177/0x440 [ 34.945628] ? __x32_compat_sys_get_robust_list+0x430/0x430 [ 34.951322] ? __ia32_sys_exit+0x50/0x50 [ 34.955370] ? do_fast_syscall_32+0x150/0xfb2 [ 34.959848] __ia32_sys_exit_group+0x3e/0x50 [ 34.964239] do_fast_syscall_32+0x34d/0xfb2 [ 34.968557] ? do_int80_syscall_32+0x890/0x890 [ 34.973121] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 34.977867] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 34.983400] ? syscall_return_slowpath+0x31d/0x5e0 [ 34.988315] ? sysret32_from_system_call+0x5/0x46 [ 34.993144] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.997969] entry_SYSENTER_compat+0x70/0x7f [ 35.002357] RIP: 0023:0xf7f2acb9 [ 35.005711] Code: Bad RIP value. [ 35.009067] RSP: 002b:00000000ffb869dc EFLAGS: 00000282 ORIG_RAX: 00000000000000fc [ 35.016758] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000000000 [ 35.024015] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 35.031283] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 35.038541] R10: 0000000000000000 R11: 0000000000000296 R12: 0000000000000000 [ 35.045790] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 35.053684] Dumping ftrace buffer: [ 35.057318] (ftrace buffer empty) [ 35.061006] Kernel Offset: disabled [ 35.064611] Rebooting in 86400 seconds..