Starting System Logging Service... Starting OpenBSD Secure Shell server... Starting getty on tty2-tty6 if dbus and logind are not available... [ OK ] Started Regular background program processing daemon. [ OK ] Started System Logging Service. [ OK ] Started Permit User Sessions. [ 52.687855][ T8073] sshd (8073) used greatest stack depth: 22984 bytes left [ OK ] Found device /dev/ttyS0. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ 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 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... 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 '10.128.15.202' (ECDSA) to the list of known hosts. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 70.167255][ T37] audit: type=1400 audit(1618564772.043:8): avc: denied { execmem } for pid=8389 comm="syz-executor094" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 70.198663][ T8390] IPVS: ftp: loaded support on port[0] = 21 [ 70.275483][ T117] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.289568][ T117] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.309254][ T3128] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 70.329078][ T117] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 70.337244][ T117] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 70.345509][ T3128] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 74.626988][ T117] ------------[ cut here ]------------ [ 74.632594][ T117] WARNING: CPU: 0 PID: 117 at net/mac80211/offchannel.c:401 ieee80211_start_next_roc+0x1f4/0x240 [ 74.644814][ T117] Modules linked in: [ 74.649274][ T117] CPU: 1 PID: 117 Comm: kworker/u4:3 Not tainted 5.12.0-rc7-syzkaller #0 [ 74.658172][ T117] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.668917][ T117] Workqueue: phy4 ieee80211_scan_work [ 74.674451][ T117] RIP: 0010:ieee80211_start_next_roc+0x1f4/0x240 [ 74.681832][ T117] Code: 18 22 00 00 48 89 ef 48 89 c2 e8 77 a7 0b 00 5b 5d e9 b0 e9 19 f9 e8 ab e9 19 f9 48 89 ef e8 c3 73 ff ff eb 8d e8 9c e9 19 f9 <0f> 0b eb 84 48 c7 c7 0c 24 c5 8d e8 3c 18 5d f9 e9 2f fe ff ff e8 [ 74.703105][ T117] RSP: 0018:ffffc900012e7b80 EFLAGS: 00010293 [ 74.709829][ T117] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 74.718580][ T117] RDX: ffff888011e44000 RSI: ffffffff88593c34 RDI: 0000000000000003 [ 74.727175][ T117] RBP: ffff888039a00d00 R08: 0000000000000000 R09: 0000000000000001 [ 74.735146][ T117] R10: ffffffff88593b4d R11: 0000000000000000 R12: 0000000000000001 [ 74.743947][ T117] R13: dffffc0000000000 R14: 0000000000000001 R15: ffff888039a02680 [ 74.752445][ T117] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 74.761986][ T117] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 74.769152][ T117] CR2: 00007f3a41930028 CR3: 000000001420a000 CR4: 00000000001506f0 [ 74.777782][ T117] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 74.786229][ T117] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 74.794192][ T117] Call Trace: [ 74.798216][ T117] __ieee80211_scan_completed+0x602/0xed0 [ 74.803936][ T117] ieee80211_scan_work+0x3dd/0x1a90 [ 74.809670][ T117] ? lock_downgrade+0x6e0/0x6e0 [ 74.814534][ T117] ? ieee80211_run_deferred_scan+0x310/0x310 [ 74.820727][ T117] process_one_work+0x98d/0x1600 [ 74.826486][ T117] ? pwq_dec_nr_in_flight+0x320/0x320 [ 74.831853][ T117] ? rwlock_bug.part.0+0x90/0x90 [ 74.837049][ T117] ? _raw_spin_lock_irq+0x41/0x50 [ 74.842111][ T117] worker_thread+0x64c/0x1120 [ 74.846934][ T117] ? process_one_work+0x1600/0x1600 [ 74.852156][ T117] kthread+0x3b1/0x4a0 [ 74.856408][ T117] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 74.862311][ T117] ret_from_fork+0x1f/0x30 [ 74.866886][ T117] Kernel panic - not syncing: panic_on_warn set ... [ 74.873461][ T117] CPU: 0 PID: 117 Comm: kworker/u4:3 Not tainted 5.12.0-rc7-syzkaller #0 [ 74.881856][ T117] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 74.891898][ T117] Workqueue: phy4 ieee80211_scan_work [ 74.897262][ T117] Call Trace: [ 74.900520][ T117] dump_stack+0x141/0x1d7 [ 74.904835][ T117] panic+0x306/0x73d [ 74.908722][ T117] ? __warn_printk+0xf3/0xf3 [ 74.913292][ T117] ? __warn.cold+0x1a/0x44 [ 74.917686][ T117] ? ieee80211_start_next_roc+0x1f4/0x240 [ 74.923386][ T117] __warn.cold+0x35/0x44 [ 74.927610][ T117] ? ieee80211_start_next_roc+0x1f4/0x240 [ 74.933313][ T117] report_bug+0x1bd/0x210 [ 74.937625][ T117] handle_bug+0x3c/0x60 [ 74.941793][ T117] exc_invalid_op+0x14/0x40 [ 74.946279][ T117] asm_exc_invalid_op+0x12/0x20 [ 74.951137][ T117] RIP: 0010:ieee80211_start_next_roc+0x1f4/0x240 [ 74.957485][ T117] Code: 18 22 00 00 48 89 ef 48 89 c2 e8 77 a7 0b 00 5b 5d e9 b0 e9 19 f9 e8 ab e9 19 f9 48 89 ef e8 c3 73 ff ff eb 8d e8 9c e9 19 f9 <0f> 0b eb 84 48 c7 c7 0c 24 c5 8d e8 3c 18 5d f9 e9 2f fe ff ff e8 [ 74.977068][ T117] RSP: 0018:ffffc900012e7b80 EFLAGS: 00010293 [ 74.983112][ T117] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 74.991075][ T117] RDX: ffff888011e44000 RSI: ffffffff88593c34 RDI: 0000000000000003 [ 74.999031][ T117] RBP: ffff888039a00d00 R08: 0000000000000000 R09: 0000000000000001 [ 75.007006][ T117] R10: ffffffff88593b4d R11: 0000000000000000 R12: 0000000000000001 [ 75.014960][ T117] R13: dffffc0000000000 R14: 0000000000000001 R15: ffff888039a02680 [ 75.022930][ T117] ? ieee80211_start_next_roc+0x10d/0x240 [ 75.028645][ T117] ? ieee80211_start_next_roc+0x1f4/0x240 [ 75.034347][ T117] __ieee80211_scan_completed+0x602/0xed0 [ 75.040051][ T117] ieee80211_scan_work+0x3dd/0x1a90 [ 75.045231][ T117] ? lock_downgrade+0x6e0/0x6e0 [ 75.050062][ T117] ? ieee80211_run_deferred_scan+0x310/0x310 [ 75.056026][ T117] process_one_work+0x98d/0x1600 [ 75.060958][ T117] ? pwq_dec_nr_in_flight+0x320/0x320 [ 75.066319][ T117] ? rwlock_bug.part.0+0x90/0x90 [ 75.071235][ T117] ? _raw_spin_lock_irq+0x41/0x50 [ 75.076277][ T117] worker_thread+0x64c/0x1120 [ 75.080937][ T117] ? process_one_work+0x1600/0x1600 [ 75.086128][ T117] kthread+0x3b1/0x4a0 [ 75.090182][ T117] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 75.096067][ T117] ret_from_fork+0x1f/0x30 [ 75.101334][ T117] Kernel Offset: disabled [ 75.105757][ T117] Rebooting in 86400 seconds..