[ OK ] Started Daily apt upgrade and clean activities. [ OK ] Reached target Timers. [ OK ] Started System Logging Service. [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. Starting Load/Save RF Kill Switch Status... [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.75' (ECDSA) to the list of known hosts. syzkaller login: [ 71.707571][ T8489] IPVS: ftp: loaded support on port[0] = 21 [ 71.839343][ T8] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.852753][ T8] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.877728][ T3228] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.899609][ T8] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.907807][ T8] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.909410][ T3894] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.929997][ T8489] netlink: 'syz-executor707': attribute type 11 has an invalid length. [ 71.949816][ T3228] ------------[ cut here ]------------ [ 71.956108][ T3228] WARNING: CPU: 0 PID: 3228 at net/wireless/core.c:1113 _cfg80211_unregister_wdev+0x453/0x740 [ 71.967136][ T3228] Modules linked in: [ 71.971095][ T3228] CPU: 0 PID: 3228 Comm: kworker/0:3 Not tainted 5.11.0-rc4-syzkaller #0 [ 71.979857][ T3228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.990278][ T3228] Workqueue: events cfg80211_destroy_iface_wk [ 71.997817][ T3228] RIP: