[ 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. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.10.21' (ECDSA) to the list of known hosts. syzkaller login: [ 35.590067] IPVS: ftp: loaded support on port[0] = 21 [ 35.643016] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 35.651593] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 35.661351] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 executing program [ 35.687927] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 35.696296] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 35.708907] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 35.717702] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 35.725236] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 35.742790] kasan: CONFIG_KASAN_INLINE enabled [ 35.749196] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 35.757127] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 35.763409] CPU: 1 PID: 8131 Comm: syz-executor349 Not tainted 4.19.157-syzkaller #0 [ 35.771271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.780619] RIP: 0010:ioctl_standard_call+0x1f7/0x2c0 [ 35.785808] 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 [ 35.804694] RSP: 0018:ffff8880b0617b08 EFLAGS: 00010246 [ 35.810036] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87b3cf44 [ 35.817300] RDX: 0000000000000000 RSI: ffffffff87b3cf4d RDI: ffff888094825828 [ 35.824547] RBP: ffff888094825640 R08: 0000000000000000 R09: 0000000000000000 [ 35.831897] R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880b0617bf0 [ 35.839144] R13: 0000000000008b04 R14: 0000000000000000 R15: 0000000000000004 [ 35.846395] FS: 0000000001e12880(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 35.854614] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 35.860477] CR2: 00007fa27c03b048 CR3: 0000000097b73000 CR4: 00000000001406e0 [ 35.867727] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 35.874978] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 35.882229] Call Trace: [ 35.884803] ? cfg80211_wext_freq+0x1a0/0x1a0 [ 35.889294] ? cfg80211_wext_freq+0x1a0/0x1a0 [ 35.893768] ? iw_handler_get_private+0x1a0/0x1a0 [ 35.898591] wireless_process_ioctl+0x376/0x4b0 [ 35.903236] ? wireless_process_ioctl+0x4b0/0x4b0 [ 35.908060] wext_handle_ioctl+0x26b/0x280 [ 35.912292] ? call_commit_handler+0x100/0x100 [ 35.916854] ? do_raw_spin_unlock+0x171/0x230 [ 35.921333] sock_ioctl+0x306/0x5d0 [ 35.924940] ? dlci_ioctl_set+0x30/0x30 [ 35.928908] ? mark_held_locks+0xf0/0xf0 [ 35.932961] ? __handle_mm_fault+0xf34/0x41c0 [ 35.937435] ? dlci_ioctl_set+0x30/0x30 [ 35.941389] do_vfs_ioctl+0xcdb/0x12e0 [ 35.945262] ? ioctl_preallocate+0x200/0x200 [ 35.949650] ? __do_page_fault+0x6d1/0xd60 [ 35.953865] ? lock_downgrade+0x720/0x720 [ 35.957992] ? up_read+0x17/0x110 [ 35.961435] ? __do_page_fault+0x180/0xd60 [ 35.965661] ksys_ioctl+0x9b/0xc0 [ 35.969099] __x64_sys_ioctl+0x6f/0xb0 [ 35.972977] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 35.977542] do_syscall_64+0xf9/0x620 [ 35.981325] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 35.986496] RIP: 0033:0x441529 [ 35.989665] 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 [ 36.008549] RSP: 002b:00007ffcec6ecba8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 36.016254] RAX: ffffffffffffffda RBX: 00007ffcec6ecbd0 RCX: 0000000000441529 [ 36.023509] RDX: 00000000200000c0 RSI: 0000000000008b04 RDI: 0000000000000003 [ 36.030764] RBP: 0000000000000003 R08: 0000001d00000000 R09: 0000001d00000000 [ 36.038013] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000032 [ 36.045265] R13: 0000000000000000 R14: 000000000000000c R15: 0000000000000004 [ 36.052531] Modules linked in: [ 36.056728] ---[ end trace 0f8b204bcff2dbe4 ]--- [ 36.061512] RIP: 0010:ioctl_standard_call+0x1f7/0x2c0 [ 36.066767] 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 [ 36.085965] RSP: 0018:ffff8880b0617b08 EFLAGS: 00010246 [ 36.091341] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff87b3cf44 [ 36.098640] RDX: 0000000000000000 RSI: ffffffff87b3cf4d RDI: ffff888094825828 [ 36.106012] RBP: ffff888094825640 R08: 0000000000000000 R09: 0000000000000000 [ 36.113266] R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880b0617bf0 [ 36.120569] R13: 0000000000008b04 R14: 0000000000000000 R15: 0000000000000004 [ 36.127891] FS: 0000000001e12880(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 36.136152] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.142055] CR2: 00007fa27c03b048 CR3: 0000000097b73000 CR4: 00000000001406e0 [ 36.149679] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.156994] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.164267] Kernel panic - not syncing: Fatal exception [ 36.170062] Kernel Offset: disabled [ 36.173697] Rebooting in 86400 seconds..