[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.96' (ECDSA) to the list of known hosts. syzkaller login: [ 35.596205] IPVS: ftp: loaded support on port[0] = 21 [ 35.648633] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 35.658102] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 35.674699] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 35.694039] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 35.706880] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 35.713824] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 35.720927] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 35.728499] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 35.740570] kasan: CONFIG_KASAN_INLINE enabled [ 35.745387] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.752747] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.758962] CPU: 0 PID: 8114 Comm: syz-executor795 Not tainted 4.19.157-syzkaller #0 [ 35.766817] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.776171] RIP: 0010:ioctl_standard_call+0x1f7/0x2c0 [ 35.781340] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c7 00 00 00 48 8b 9d e8 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 98 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b [ 35.800217] RSP: 0018:ffff888094c6fb08 EFLAGS: 00010246 [ 35.805641] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87b3cf44 [ 35.812906] RDX: 0000000000000000 RSI: ffffffff87b3cf4d RDI: ffff8880afef95a8 [ 35.820212] RBP: ffff8880afef93c0 R08: 0000000000000000 R09: 0000000000000000 [ 35.827458] R10: 0000000000000001 R11: 0000000000000000 R12: ffff888094c6fbf0 [ 35.834718] R13: 0000000000008b04 R14: 0000000000000000 R15: 0000000000000004 [ 35.842016] FS: 00000000018b4880(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 35.850229] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.856087] CR2: 00000000006d2090 CR3: 000000009b2c5000 CR4: 00000000001406f0 [ 35.863337] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.870594] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.877841] Call Trace: [ 35.880418] ? cfg80211_wext_freq+0x1a0/0x1a0 [ 35.884903] ? cfg80211_wext_freq+0x1a0/0x1a0 [ 35.889374] ? iw_handler_get_private+0x1a0/0x1a0 [ 35.894193] wireless_process_ioctl+0x376/0x4b0 [ 35.898838] ? wireless_process_ioctl+0x4b0/0x4b0 [ 35.903656] wext_handle_ioctl+0x26b/0x280 [ 35.907866] ? call_commit_handler+0x100/0x100 [ 35.912424] ? __lock_acquire+0x6de/0x3ff0 [ 35.916636] ? __lock_acquire+0x6de/0x3ff0 [ 35.920862] sock_ioctl+0x306/0x5d0 [ 35.924466] ? dlci_ioctl_set+0x30/0x30 [ 35.928418] ? mark_held_locks+0xf0/0xf0 [ 35.932456] ? __handle_mm_fault+0xf34/0x41c0 [ 35.936942] ? dlci_ioctl_set+0x30/0x30 [ 35.940890] do_vfs_ioctl+0xcdb/0x12e0 [ 35.944779] ? ioctl_preallocate+0x200/0x200 [ 35.949165] ? __alloc_fd+0x28d/0x570 [ 35.952955] ? __fd_install+0x1b4/0x610 [ 35.956908] ? lock_downgrade+0x720/0x720 [ 35.961034] ? check_preemption_disabled+0x41/0x280 [ 35.966075] ksys_ioctl+0x9b/0xc0 [ 35.969505] __x64_sys_ioctl+0x6f/0xb0 [ 35.973369] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.977968] do_syscall_64+0xf9/0x620 [ 35.981746] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.986911] RIP: 0033:0x441559 [ 35.990079] Code: e8 ec 05 03 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 8b 0d fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 36.008954] RSP: 002b:00007ffe17152cd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.016650] RAX: ffffffffffffffda RBX: 00007ffe17152d00 RCX: 0000000000441559 [ 36.023897] RDX: 00000000200001c0 RSI: 0000000000008b04 RDI: 0000000000000005 [ 36.031140] RBP: 0000000000000003 R08: 0000001d00000000 R09: 0000001d00000000 [ 36.038420] R10: 0000001d00000000 R11: 0000000000000246 R12: 0000000000000032 [ 36.045707] R13: 0000000000000000 R14: 000000000000000c R15: 0000000000000004 [ 36.053076] Modules linked in: [ 36.057449] ---[ end trace f3fb11eb3c4b7857 ]--- [ 36.062223] RIP: 0010:ioctl_standard_call+0x1f7/0x2c0 [ 36.067471] Code: df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c7 00 00 00 48 8b 9d e8 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 98 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b [ 36.086427] RSP: 0018:ffff888094c6fb08 EFLAGS: 00010246 [ 36.091780] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87b3cf44 [ 36.099189] RDX: 0000000000000000 RSI: ffffffff87b3cf4d RDI: ffff8880afef95a8 [ 36.106581] RBP: ffff8880afef93c0 R08: 0000000000000000 R09: 0000000000000000 [ 36.113883] R10: 0000000000000001 R11: 0000000000000000 R12: ffff888094c6fbf0 [ 36.121179] R13: 0000000000008b04 R14: 0000000000000000 R15: 0000000000000004 [ 36.129163] FS: 00000000018b4880(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 36.137461] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.143336] CR2: 00000000006d2090 CR3: 000000009b2c5000 CR4: 00000000001406f0 [ 36.150829] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.158161] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.165511] Kernel panic - not syncing: Fatal exception [ 36.171365] Kernel Offset: disabled [ 36.174978] Rebooting in 86400 seconds..