Warning: Permanently added '10.128.0.114' (ECDSA) to the list of known hosts. syzkaller login: [ 31.687596] audit: type=1400 audit(1602338687.273:8): avc: denied { execmem } for pid=6349 comm="syz-executor840" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 31.709240] IPVS: ftp: loaded support on port[0] = 21 [ 31.772246] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 31.779797] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 31.793763] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 31.817885] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 31.839293] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 31.851448] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 31.858632] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 31.866247] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 31.891493] ------------[ cut here ]------------ [ 31.896334] WARNING: CPU: 1 PID: 4272 at net/mac80211/sta_info.c:463 sta_info_insert_rcu+0x1cf/0x1f40 [ 31.905714] Kernel panic - not syncing: panic_on_warn set ... [ 31.905714] [ 31.913050] CPU: 1 PID: 4272 Comm: kworker/u4:5 Not tainted 4.14.198-syzkaller #0 [ 31.920639] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.929972] Workqueue: phy2 ieee80211_iface_work [ 31.934743] Call Trace: [ 31.937304] dump_stack+0x1b2/0x283 [ 31.940950] panic+0x1f9/0x42d [ 31.944120] ? add_taint.cold+0x16/0x16 [ 31.948070] ? sta_info_insert_rcu+0x1cf/0x1f40 [ 31.952724] ? sta_info_insert_rcu+0x1cf/0x1f40 [ 31.957413] __warn.cold+0x20/0x4b [ 31.960928] ? ist_end_non_atomic+0x10/0x10 [ 31.965224] ? sta_info_insert_rcu+0x1cf/0x1f40 [ 31.969866] report_bug+0x208/0x249 [ 31.973470] do_error_trap+0x195/0x2d0 [ 31.977331] ? math_error+0x2d0/0x2d0 [ 31.981103] ? sta_info_insert_rcu+0x68/0x1f40 [ 31.985659] ? __mutex_lock+0x360/0x1310 [ 31.989696] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.994512] invalid_op+0x1b/0x40 [ 31.997973] RIP: 0010:sta_info_insert_rcu+0x1cf/0x1f40 [ 32.003217] RSP: 0018:ffff88809fb0fad8 EFLAGS: 00010297 [ 32.008556] RAX: ffff88809f59a540 RBX: ffff8880900b9500 RCX: 00000000bd63276f [ 32.015836] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880900ba5cc [ 32.023099] RBP: ffff888096b2ebc0 R08: 0000000000000000 R09: ffffffff8951e762 [ 32.030468] R10: 000000000011e148 R11: ffff88809f59a540 R12: 00000000bd63377f [ 32.037709] R13: 0000000000000001 R14: ffff888094dd1848 R15: ffff888096b2ec08 [ 32.044961] ? sta_info_insert_rcu+0x1cf/0x1f40 [ 32.049606] ? lock_downgrade+0x740/0x740 [ 32.053725] ? __local_bh_enable_ip+0xc1/0x170 [ 32.058283] ? minstrel_ht_rate_update+0x40/0x40 [ 32.063008] ? rate_control_rate_init+0x2cb/0x4f0 [ 32.067836] ieee80211_ibss_finish_sta+0x1db/0x2b0 [ 32.072747] ? ieee80211_sta_join_ibss+0xd50/0xd50 [ 32.077657] ? __local_bh_enable_ip+0xc1/0x170 [ 32.082221] ieee80211_ibss_work+0x260/0xc90 [ 32.086602] ? ieee80211_ibss_rx_queued_mgmt+0x1680/0x1680 [ 32.092203] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 32.097713] ? trace_hardirqs_on_caller+0x3a8/0x580 [ 32.102711] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 32.107789] ieee80211_iface_work+0x690/0x770 [ 32.112277] process_one_work+0x793/0x14a0 [ 32.116500] ? work_busy+0x320/0x320 [ 32.120184] ? worker_thread+0x158/0xff0 [ 32.124241] ? _raw_spin_unlock_irq+0x24/0x80 [ 32.128714] worker_thread+0x5cc/0xff0 [ 32.132576] ? rescuer_thread+0xc80/0xc80 [ 32.136697] kthread+0x30d/0x420 [ 32.140035] ? kthread_create_on_node+0xd0/0xd0 [ 32.144682] ret_from_fork+0x24/0x30 [ 32.149671] Kernel Offset: disabled [ 32.153319] Rebooting in 86400 seconds..