Warning: Permanently added '10.128.1.26' (ECDSA) to the list of known hosts. syzkaller login: [ 44.809645] audit: type=1400 audit(1602596800.061:8): avc: denied { execmem } for pid=6496 comm="syz-executor915" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 44.823738] IPVS: ftp: loaded support on port[0] = 21 [ 44.887350] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 44.905717] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 44.923386] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 44.934046] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 44.942493] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 44.952975] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 44.961316] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 44.970134] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 44.982458] ------------[ cut here ]------------ [ 44.987827] WARNING: CPU: 0 PID: 7 at net/mac80211/sta_info.c:458 sta_info_insert_rcu.cold+0x104/0x280 [ 44.997275] Kernel panic - not syncing: panic_on_warn set ... [ 44.997275] [ 45.004671] CPU: 0 PID: 7 Comm: kworker/u4:0 Not tainted 4.19.150-syzkaller #0 [ 45.012025] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 45.021371] Workqueue: phy3 ieee80211_iface_work [ 45.026103] Call Trace: [ 45.028690] dump_stack+0x22c/0x33e [ 45.032311] panic+0x2ac/0x565 [ 45.035485] ? __warn_printk+0xf3/0xf3 [ 45.039354] ? sta_info_insert_rcu.cold+0x104/0x280 [ 45.044359] ? __probe_kernel_read+0x130/0x1b0 [ 45.048921] ? __warn.cold+0x5/0x5a [ 45.052529] ? __warn+0xe4/0x200 [ 45.055877] ? sta_info_insert_rcu.cold+0x104/0x280 [ 45.060872] __warn.cold+0x20/0x5a [ 45.064395] ? sta_info_insert_rcu.cold+0x104/0x280 [ 45.069402] report_bug+0x262/0x2b0 [ 45.073033] do_error_trap+0x1e1/0x330 [ 45.076901] ? math_error+0x320/0x320 [ 45.080775] ? __irq_work_queue_local+0x155/0x200 [ 45.085609] ? irq_work_queue+0x29/0x80 [ 45.089566] ? error_entry+0x72/0xd0 [ 45.093260] ? trace_hardirqs_off_caller+0x6e/0x210 [ 45.098262] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 45.103087] invalid_op+0x14/0x20 [ 45.106522] RIP: 0010:sta_info_insert_rcu.cold+0x104/0x280 [ 45.112144] Code: 74 24 30 48 c7 c7 80 98 1c 8b e8 d5 4e 68 fc 0f b6 44 24 30 e9 10 5a ff ff e8 d6 ff 23 fa 48 c7 c7 c0 5e cd 88 e8 79 7b 0d fa <0f> 0b 41 bd ea ff ff ff e9 4d 63 ff ff e8 b8 ff 23 fa 0f b6 f3 48 [ 45.131041] RSP: 0018:ffff8880a9a0fa60 EFLAGS: 00010282 [ 45.136383] RAX: 0000000000000024 RBX: ffff8880a3c85c00 RCX: 0000000000000000 [ 45.143632] RDX: 0000000000000000 RSI: ffffffff815b623f RDI: ffffed1015341f3e [ 45.150880] RBP: 0000000000000001 R08: 0000000000000024 R09: 0000000000000000 [ 45.158140] R10: 0000000000000005 R11: 0000000000000000 R12: 00000000500177e9 [ 45.165387] R13: ffff8880a3e923c8 R14: ffff8880a3e92380 R15: 0000000000003309 [ 45.172649] ? vprintk_func+0x7f/0x224 [ 45.176521] ? check_preemption_disabled+0x41/0x2b0 [ 45.181536] ? minstrel_ht_rate_update+0x40/0x40 [ 45.186280] ? rate_control_rate_init+0x33c/0x570 [ 45.191111] ieee80211_ibss_finish_sta+0x277/0x380 [ 45.196021] ? ieee80211_sta_join_ibss+0xf90/0xf90 [ 45.200929] ? ieee80211_ibss_work+0x120/0xec0 [ 45.205490] ? __local_bh_enable_ip+0x159/0x2a0 [ 45.210142] ? lockdep_hardirqs_on+0x3c1/0x5e0 [ 45.214705] ieee80211_ibss_work+0x2b6/0xec0 [ 45.219095] ? ieee80211_ibss_rx_queued_mgmt+0x1940/0x1940 [ 45.224721] ? mark_held_locks+0xa6/0xf0 [ 45.228779] ? _raw_spin_unlock_irqrestore+0x7d/0xf0 [ 45.233880] ? lockdep_hardirqs_on+0x3c1/0x5e0 [ 45.238453] ? _raw_spin_unlock_irqrestore+0x6a/0xf0 [ 45.243560] ieee80211_iface_work+0x828/0x900 [ 45.248043] process_one_work+0x796/0x14e0 [ 45.252269] ? init_worker_pool+0x5c0/0x5c0 [ 45.256577] worker_thread+0x64c/0x1130 [ 45.260553] ? rescuer_thread+0xce0/0xce0 [ 45.264684] kthread+0x33f/0x460 [ 45.268044] ? kthread_park+0x180/0x180 [ 45.272018] ret_from_fork+0x24/0x30 [ 45.277179] Kernel Offset: disabled [ 45.280871] Rebooting in 86400 seconds..