[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 20.349621] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 25.108803] random: sshd: uninitialized urandom read (32 bytes read) [ 25.510061] random: sshd: uninitialized urandom read (32 bytes read) [ 26.237275] random: sshd: uninitialized urandom read (32 bytes read) [ 26.392590] random: sshd: uninitialized urandom read (32 bytes read) Warning: Permanently added '10.128.10.43' (ECDSA) to the list of known hosts. [ 31.843161] random: sshd: uninitialized urandom read (32 bytes read) net.ipv6.conf.syz_tun.accept_dad = 0 [ 31.952973] IPVS: ftp: loaded support on port[0] = 21 net.ipv6.conf.syz_tun.router_solicitations = 0 [ 32.189618] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.196410] bridge0: port 1(bridge_slave_0) entered disabled state [ 32.204339] device bridge_slave_0 entered promiscuous mode [ 32.222395] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.228819] bridge0: port 2(bridge_slave_1) entered disabled state [ 32.235848] device bridge_slave_1 entered promiscuous mode [ 32.253285] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 32.270823] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 32.316057] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 32.336970] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 32.426427] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 32.434204] team0: Port device team_slave_0 added [ 32.453160] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 32.460605] team0: Port device team_slave_1 added [ 32.479502] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 32.503092] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 32.523441] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 32.546525] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready RTNETLINK answers: Operation not supported RTNETLINK answers: No buffer space available RTNETLINK answers: Operation not supported [ 32.711868] bridge0: port 2(bridge_slave_1) entered blocking state [ 32.718876] bridge0: port 2(bridge_slave_1) entered forwarding state [ 32.726054] bridge0: port 1(bridge_slave_0) entered blocking state [ 32.732958] bridge0: port 1(bridge_slave_0) entered forwarding state RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument [ 33.247630] 8021q: adding VLAN 0 to HW filter on device bond0 [ 33.308449] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 33.366475] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 33.372802] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 33.381656] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 33.430408] 8021q: adding VLAN 0 to HW filter on device team0 executing program [ 33.703739] kasan: CONFIG_KASAN_INLINE enabled [ 33.708741] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 33.716420] general protection fault: 0000 [#1] SMP KASAN [ 33.722025] Dumping ftrace buffer: [ 33.725572] (ftrace buffer empty) [ 33.729274] Modules linked in: [ 33.732473] CPU: 1 PID: 4777 Comm: syz-executor564 Not tainted 4.17.0-rc2+ #44 [ 33.739817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.749190] RIP: 0010:smc_getname+0x124/0x1c0 [ 33.753690] RSP: 0018:ffff8801d33f7bd0 EFLAGS: 00010206 [ 33.759053] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff873e7008 [ 33.766335] RDX: 0000000000000005 RSI: ffffffff873e70a6 RDI: 0000000000000028 [ 33.773609] RBP: ffff8801d33f7bf8 R08: ffff8801d2850740 R09: ffffed003b5e46c2 [ 33.780954] R10: 0000000000000003 R11: 0000000000000000 R12: 0000000000000000 [ 33.788410] R13: ffff8801d33f7cc0 R14: ffff8801a92f3140 R15: dffffc0000000000 [ 33.795689] FS: 0000000000000000(0000) GS:ffff8801daf00000(0063) knlGS:00000000f7f4eb40 [ 33.803910] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 33.809779] CR2: 0000000020000080 CR3: 00000001ad1f7000 CR4: 00000000001406e0 [ 33.817043] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.824315] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.831583] Call Trace: [ 33.834173] __sys_getsockname+0x184/0x380 [ 33.838426] ? __ia32_sys_connect+0xb0/0xb0 [ 33.842767] ? find_held_lock+0x36/0x1c0 [ 33.846830] ? lock_downgrade+0x8e0/0x8e0 [ 33.850996] ? finish_task_switch+0x182/0x810 [ 33.855776] ? kasan_check_read+0x11/0x20 [ 33.859950] __ia32_sys_getsockname+0x71/0xb0 [ 33.864577] do_fast_syscall_32+0x345/0xf9b [ 33.868935] ? do_int80_syscall_32+0x880/0x880 [ 33.873612] ? kasan_check_write+0x14/0x20 [ 33.877863] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 33.883407] ? syscall_return_slowpath+0x30f/0x5c0 [ 33.888347] ? sysret32_from_system_call+0x5/0x46 [ 33.893226] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.898091] entry_SYSENTER_compat+0x70/0x7f [ 33.902519] RIP: 0023:0xf7f74cb9 [ 33.905897] RSP: 002b:00000000f7f4e11c EFLAGS: 00000292 ORIG_RAX: 000000000000016f [ 33.913693] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000000000 [ 33.920948] RDX: 0000000020000000 RSI: 00000000200000c0 RDI: 0000000000000000 [ 33.928212] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 33.935478] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 33.942751] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 33.950031] Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 99 00 00 00 48 8b 9b 50 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 28 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 70 48 b8 00 00 00 00 00 fc ff df 4c 8b 73 28 49 [ 33.970715] RIP: smc_getname+0x124/0x1c0 RSP: ffff8801d33f7bd0 [ 33.977102] ---[ end trace f3b40d34a82f4979 ]--- [ 33.981883] Kernel panic - not syncing: Fatal exception [ 33.987861] Dumping ftrace buffer: [ 33.991414] (ftrace buffer empty) [ 33.995138] Kernel Offset: disabled [ 33.998757] Rebooting in 86400 seconds..