[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[   16.345836] random: sshd: uninitialized urandom read (32 bytes read)
[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   17.563933] random: sshd: uninitialized urandom read (32 bytes read)
[   17.869296] random: sshd: uninitialized urandom read (32 bytes read)
[   18.603376] random: sshd: uninitialized urandom read (32 bytes read)
[   18.736796] random: sshd: uninitialized urandom read (32 bytes read)
Warning: Permanently added '10.128.10.50' (ECDSA) to the list of known hosts.
[   24.212447] random: sshd: uninitialized urandom read (32 bytes read)
2018/07/29 01:40:22 parsed 1 programs
[   25.316779] random: cc1: uninitialized urandom read (8 bytes read)
2018/07/29 01:40:24 executed programs: 0
[   26.284776] IPVS: ftp: loaded support on port[0] = 21
[   26.423582] bridge0: port 1(bridge_slave_0) entered blocking state
[   26.429957] bridge0: port 1(bridge_slave_0) entered disabled state
[   26.436842] device bridge_slave_0 entered promiscuous mode
[   26.449431] bridge0: port 2(bridge_slave_1) entered blocking state
[   26.455779] bridge0: port 2(bridge_slave_1) entered disabled state
[   26.462672] device bridge_slave_1 entered promiscuous mode
[   26.475126] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready
[   26.488695] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready
[   26.519999] bond0: Enslaving bond_slave_0 as an active interface with an up link
[   26.535389] bond0: Enslaving bond_slave_1 as an active interface with an up link
[   26.581091] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready
[   26.588202] team0: Port device team_slave_0 added
[   26.600087] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready
[   26.607154] team0: Port device team_slave_1 added
[   26.619141] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready
[   26.633508] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready
[   26.647474] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready
[   26.661770] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready
[   26.745751] bridge0: port 2(bridge_slave_1) entered blocking state
[   26.752132] bridge0: port 2(bridge_slave_1) entered forwarding state
[   26.758739] bridge0: port 1(bridge_slave_0) entered blocking state
[   26.765083] bridge0: port 1(bridge_slave_0) entered forwarding state
[   27.056242] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready
[   27.062341] 8021q: adding VLAN 0 to HW filter on device bond0
[   27.094167] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready
[   27.126943] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready
[   27.134996] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
[   27.162390] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready
[   27.168497] 8021q: adding VLAN 0 to HW filter on device team0
[   27.383315] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready
[   28.969033] ==================================================================
[   28.976458] BUG: KASAN: use-after-free in __dev_map_entry_free+0x2a8/0x300
[   28.983454] Read of size 8 at addr ffff8801ba874e08 by task syz-execprog/4347
[   28.990708] 
[   28.992339] CPU: 1 PID: 4347 Comm: syz-execprog Not tainted 4.18.0-rc5+ #64
[   28.999427] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.008766] Call Trace:
[   29.011326]  <IRQ>
[   29.013458]  dump_stack+0x1c9/0x2b4
[   29.017065]  ? dump_sta