[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ 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. [ 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... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Warning: Permanently added '10.128.0.44' (ECDSA) to the list of known hosts. [ 77.649811][ T38] audit: type=1400 audit(1618549809.141:8): avc: denied { execmem } for pid=8388 comm="syz-executor876" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 78.768539][ T8389] IPVS: ftp: loaded support on port[0] = 21 [ 78.883861][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.914445][ T225] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 78.925381][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.936401][ T225] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 78.973544][ T3150] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 78.994139][ T3150] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 79.024244][ T8389] mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium [ 79.024486][ T25] ------------[ cut here ]------------ [ 79.043778][ T25] WARNING: CPU: 1 PID: 25 at net/mac80211/sta_info.c:547 sta_info_insert_rcu+0x274/0x2c40 [ 79.053875][ T25] Modules linked in: [ 79.057815][ T25] CPU: 1 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-rc7-syzkaller #0 [ 79.068209][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 79.078416][ T25] Workqueue: phy3 ieee80211_iface_work [ 79.084122][ T25] RIP: 0010:sta_info_insert_rcu+0x274/0x2c40 [ 79.090176][ T25] Code: 24 e8 e0 28 1c f9 0f b6