[ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ 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. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.50' (ECDSA) to the list of known hosts. syzkaller login: [ 71.700878][ T8415] IPVS: ftp: loaded support on port[0] = 21 [ 71.867053][ T25] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.881989][ T25] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 71.910460][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 71.926167][ T25] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 71.934133][ T25] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 71.944235][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 71.959481][ T25] ------------[ cut here ]------------ [ 71.959922][ T8415] mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium [ 71.965949][ T25] WARNING: CPU: 1 PID: 25 at net/mac80211/sta_info.c:547 sta_info_insert_rcu+0x274/0x2c40 [ 71.966023][ T25] Modules linked in: [ 71.966041][ T25] CPU: 1 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-rc4-next-20210322-syzkaller #0 [ 71.966064][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 71.966082][ T25] Workqueue: phy4 ieee80211_iface_work [ 71.966112][ T25] RIP: 0010:sta_info_insert_rcu+0x274/0x2c40 [ 71.966142][ T25] Code: 24 e8 00 9a 16 f9 0f b6 85 50 ff ff ff 31 ff 83 e0 01 41 89 c4 89 c6 e8 9a a0 16 f9 45 84 e4 0f 84 bc 00 00 00 e8 dc 99 16 f9 <0f> 0b 41 bc ea ff ff ff e8 cf 99 16 f9 4c 89 f6 4c 89 ff e8 c4 f9 [ 71.966165][ T25] RSP: 0018:ffffc90000dff970 EFLAGS: 00010293 [ 71.966184][ T25] RAX: 0000000000000000 RBX: ffff888017068c00 RCX: 0000000000000000 [ 71.966202][ T25] RDX: ffff888011cbb900 RSI: ffffffff885d8cc4 RDI: 0000000000000003 [ 71.966219][ T25] RBP: ffffc90000dffab0 R08: 0000000000000000 R09: 0000000000000001 [ 71.966233][ T25] R10: ffffffff885d8cb6 R11: 0000000000000000 R12: 0000000000000001 [ 71.966247][ T25] R13: ffff88802e2a2048 R14: ffff88802e2a2000 R15: ffff888027800d00 [ 71.966266][ T25] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 71.966294][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 71.966313][ T25] CR2: 00007f75d6d956c0 CR3: 000000002c55a000 CR4: 00000000001506e0 [ 71.966332][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 71.966348][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 71.966365][ T25] Call Trace: [ 71.966375][ T25] ? find_held_lock+0x2d/0x110 [ 71.966411][ T25] ? rate_control_rate_init+0x32c/0x6a0 [ 71.966449][ T25] ? sta_info_free+0x3b0/0x3b0 [ 71.966476][ T25] ? __local_bh_enable_ip+0xa0/0x120 [ 71.966510][ T25] ? rate_control_rate_init+0x35f/0x6a0 [ 71.966554][ T25] ieee80211_ibss_finish_sta+0x212/0x390 [ 71.966584][ T25] ? ieee80211_ibss_build_presp+0x1760/0x1760 [ 71.966616][ T25] ? __local_bh_enable_ip+0xa0/0x120 [ 71.966648][ T25] ieee80211_ibss_work+0x2c7/0xe80 [ 71.966684][ T25] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 71.966718][ T25] ? mark_held_locks+0x9f/0xe0 [ 71.966750][ T25] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 71.966782][ T25] ? lockdep_hardirqs_on+0x79/0x100 [ 71.966810][ T25] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 71.966845][ T25] ieee80211_iface_work+0x893/0x9e0 [ 71.966883][ T25] process_one_work+0x98d/0x1600 [ 71.966924][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 71.966958][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 71.966986][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 71.967024][ T25] worker_thread+0x64c/0x1120 [ 71.967060][ T25] ? process_one_work+0x1600/0x1600 [ 72.248296][ T25] kthread+0x3b1/0x4a0 [ 72.252562][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 72.258154][ T25] ret_from_fork+0x1f/0x30 [ 72.263082][ T25] Kernel panic - not syncing: panic_on_warn set ... [ 72.269679][ T25] CPU: 1 PID: 25 Comm: kworker/u4:1 Not tainted 5.12.0-rc4-next-20210322-syzkaller #0 [ 72.279248][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 72.289584][ T25] Workqueue: phy4 ieee80211_iface_work [ 72.295072][ T25] Call Trace: [ 72.298363][ T25] dump_stack+0x141/0x1d7 [ 72.302718][ T25] panic+0x306/0x73d [ 72.306628][ T25] ? __warn_printk+0xf3/0xf3 [ 72.311254][ T25] ? __warn.cold+0x1a/0x44 [ 72.315697][ T25] ? sta_info_insert_rcu+0x274/0x2c40 [ 72.321114][ T25] __warn.cold+0x35/0x44 [ 72.325392][ T25] ? sta_info_insert_rcu+0x274/0x2c40 [ 72.330809][ T25] report_bug+0x1bd/0x210 [ 72.335438][ T25] handle_bug+0x3c/0x60 [ 72.339619][ T25] exc_invalid_op+0x14/0x40 [ 72.344167][ T25] asm_exc_invalid_op+0x12/0x20 [ 72.349051][ T25] RIP: 0010:sta_info_insert_rcu+0x274/0x2c40 [ 72.355064][ T25] Code: 24 e8 00 9a 16 f9 0f b6 85 50 ff ff ff 31 ff 83 e0 01 41 89 c4 89 c6 e8 9a a0 16 f9 45 84 e4 0f 84 bc 00 00 00 e8 dc 99 16 f9 <0f> 0b 41 bc ea ff ff ff e8 cf 99 16 f9 4c 89 f6 4c 89 ff e8 c4 f9 [ 72.374885][ T25] RSP: 0018:ffffc90000dff970 EFLAGS: 00010293 [ 72.383442][ T25] RAX: 0000000000000000 RBX: ffff888017068c00 RCX: 0000000000000000 [ 72.391618][ T25] RDX: ffff888011cbb900 RSI: ffffffff885d8cc4 RDI: 0000000000000003 [ 72.399966][ T25] RBP: ffffc90000dffab0 R08: 0000000000000000 R09: 0000000000000001 [ 72.407967][ T25] R10: ffffffff885d8cb6 R11: 0000000000000000 R12: 0000000000000001 [ 72.415967][ T25] R13: ffff88802e2a2048 R14: ffff88802e2a2000 R15: ffff888027800d00 [ 72.426499][ T25] ? sta_info_insert_rcu+0x266/0x2c40 [ 72.431932][ T25] ? sta_info_insert_rcu+0x274/0x2c40 [ 72.437544][ T25] ? find_held_lock+0x2d/0x110 [ 72.442383][ T25] ? rate_control_rate_init+0x32c/0x6a0 [ 72.447966][ T25] ? sta_info_free+0x3b0/0x3b0 [ 72.453208][ T25] ? __local_bh_enable_ip+0xa0/0x120 [ 72.458625][ T25] ? rate_control_rate_init+0x35f/0x6a0 [ 72.464198][ T25] ieee80211_ibss_finish_sta+0x212/0x390 [ 72.469860][ T25] ? ieee80211_ibss_build_presp+0x1760/0x1760 [ 72.475961][ T25] ? __local_bh_enable_ip+0xa0/0x120 [ 72.481361][ T25] ieee80211_ibss_work+0x2c7/0xe80 [ 72.486514][ T25] ? ieee80211_ibss_rx_queued_mgmt+0x1870/0x1870 [ 72.492890][ T25] ? mark_held_locks+0x9f/0xe0 [ 72.497682][ T25] ? _raw_spin_unlock_irqrestore+0x50/0x70 [ 72.503529][ T25] ? lockdep_hardirqs_on+0x79/0x100 [ 72.508749][ T25] ? _raw_spin_unlock_irqrestore+0x3d/0x70 [ 72.514841][ T25] ieee80211_iface_work+0x893/0x9e0 [ 72.520082][ T25] process_one_work+0x98d/0x1600 [ 72.525051][ T25] ? pwq_dec_nr_in_flight+0x320/0x320 [ 72.530554][ T25] ? rwlock_bug.part.0+0x90/0x90 [ 72.535511][ T25] ? _raw_spin_lock_irq+0x41/0x50 [ 72.540561][ T25] worker_thread+0x64c/0x1120 [ 72.545274][ T25] ? process_one_work+0x1600/0x1600 [ 72.550491][ T25] kthread+0x3b1/0x4a0 [ 72.554581][ T25] ? __kthread_bind_mask+0xc0/0xc0 [ 72.559940][ T25] ret_from_fork+0x1f/0x30 [ 72.565203][ T25] Kernel Offset: disabled [ 72.569659][ T25] Rebooting in 86400 seconds..