[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ 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 Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.193' (ECDSA) to the list of known hosts. syzkaller login: [ 67.377519][ T8500] IPVS: ftp: loaded support on port[0] = 21 [ 67.529950][ T211] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.539422][ T211] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.557555][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 67.588194][ T211] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 67.596165][ T211] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 67.605940][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 67.629315][ T211] ------------[ cut here ]------------ [ 67.642720][ T211] WARNING: CPU: 1 PID: 211 at net/mac80211/sta_info.c:547 sta_info_insert_rcu+0x26f/0x2c30 [ 67.653055][ T211] Modules linked in: [ 67.658843][ T211] CPU: 1 PID: 211 Comm: kworker/u4:4 Not tainted 5.10.0-rc5-syzkaller #0 [ 67.668646][ T211] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 67.679544][ T211] Workqueue: phy3 ieee80211_iface_work [ 67.685108][ T211] RIP: 0010:sta_info_insert_rcu+0x26f/0x2c30 [ 67.691528][ T211] Code: 24 e8 05 46 2b f9 0f b6 85 50 ff ff ff 31 ff 83 e0 01 41 89 c4 89 c6 e8 ff 3d 2b f9 45 84 e4 0f 84 bc 00 00 00 e8 e1 45 2b f9 <0f> 0b 41 bc ea ff ff ff e8 d4 45 2b f9 4c 89 f6 4c 89 ff e8 c9 f9 [ 67.711738][ T211] RSP: 0018:ffffc900018cf970 EFLAGS: 00010293 [ 67.718495][ T211] RAX: 0000000000000000 RBX: ffff888020b18c00 RCX: ffffffff8844bea1 [