Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.24' (ECDSA) to the list of known hosts.
syzkaller login: [   29.160985] IPVS: ftp: loaded support on port[0] = 21
[   29.221309] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[   29.234895] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   29.255281] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready
executing program
[   29.268151] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   29.270270] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
[   29.288901] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   29.300216] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
[   29.308124] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
[   29.319381] kasan: CONFIG_KASAN_INLINE enabled
[   29.324130] kasan: GPF could be caused by NULL-ptr deref or user memory access
[   29.333658] general protection fault: 0000 [#1] PREEMPT SMP KASAN
[   29.339892] Modules linked in:
[   29.343065] CPU: 0 PID: 7974 Comm: syz-executor025 Not tainted 4.14.204-syzkaller #0
[   29.351019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   29.360477] task: ffff8880b3268180 task.stack: ffff8880b44b8000
[   29.366633] RIP: 0010:ioctl_standard_call+0x19b/0x260
[   29.371798] RSP: 0018:ffff8880b44bfb48 EFLAGS: 00010246
[   29.377138] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 1ffff11016897f5a
[   29.384405] RDX: 0000000000000000 RSI: ffff8880b3268a08 RDI: ffff888095a10ce0
[   29.391653] RBP: ffff888095a10b00 R08: ffffffff8b9c2f90 R09: 0000000000000000
[   29.398915] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880b44bfcb8
[   29.406160] R13: 0000000000008b04 R14: 0000000000000000 R15: ffff8880b44bfbf0
[   29.413406] FS:  0000000000f10880(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
[   29.421609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.427740] CR2: 00000000006d2090 CR3: 000000009a54b000 CR4: 00000000001406f0
[   29.435075] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   29.442333] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   29.449665] Call Trace:
[   29.452241]  ? cfg80211_wext_freq+0x160/0x160
[   29.456712]  ? iw_handler_get_private+0x190/0x190
[   29.461547]  wireless_process_ioctl+0x312/0x450
[   29.466363]  ? wireless_process_ioctl+0x450/0x450
[   29.471283]  wext_handle_ioctl+0x17e/0x190
[   29.475528]  ? call_commit_handler+0x100/0x100
[   29.480106]  ? __might_fault+0x177/0x1b0
[   29.484174]  ? _copy_from_user+0x96/0x100
[   29.488311]  dev_ioctl+0x24c/0xbe0
[   29.491832]  ? dev_ifsioc+0x7d0/0x7d0
[   29.495616]  ? trace_hardirqs_on+0x10/0x10
[   29.499831]  ? trace_hardirqs_on+0x10/0x10
[   29.504065]  ? trace_hardirqs_on+0x10/0x10
[   29.508301]  sock_ioctl+0x164/0x4c0
[   29.511924]  ? sock_release+0x1e0/0x1e0
[   29.515898]  do_vfs_ioctl+0x75a/0xff0
[   29.519688]  ? ioctl_preallocate+0x1a0/0x1a0
[   29.524077]  ? __fd_install+0x227/0x5c0
[   29.528053]  ? get_unused_fd_flags+0xc0/0xc0
[   29.533066]  ? _raw_spin_unlock+0x29/0x40
[   29.537190]  ? __alloc_fd+0x1be/0x490
[   29.540969]  ? security_file_ioctl+0x83/0xb0
[   29.545353]  SyS_ioctl+0x7f/0xb0
[   29.548712]  ? do_vfs_ioctl+0xff0/0xff0
[   29.552664]  do_syscall_64+0x1d5/0x640
[   29.556533]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[   29.561702] RIP: 0033:0x441559
[   29.564883] RSP: 002b:00007fff1443e338 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
[   29.572567] RAX: ffffffffffffffda RBX: 00007fff1443e360 RCX: 0000000000441559
[   29.579814] RDX: 00000000200001c0 RSI: 0000000000008b04 RDI: 0000000000000005
[   29.587076] RBP: 0000000000000003 R08: 0000001300000000 R09: 0000001300000000
[   29.594361] R10: 0000001300000000 R11: 0000000000000246 R12: 0000000000000032
[   29.601622] R13: 0000000000000000 R14: 000000000000000c R15: 0000000000000004
[   29.608967] Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 c8 00 00 00 48 8b 9d e0 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 99 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 
[   29.628054] RIP: ioctl_standard_call+0x19b/0x260 RSP: ffff8880b44bfb48
[   29.636289] ---[ end trace b31b4a62d7af2d76 ]---
[   29.641171] Kernel panic - not syncing: Fatal exception
[   29.647298] Kernel Offset: disabled
[   29.650911] Rebooting in 86400 seconds..