BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 98aba067 P4D 98aba067 PUD a2965067 PMD 0 
Oops: 0010 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 11141 Comm: syz-executor.4 Not tainted 5.5.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffffc90006f8fc38 EFLAGS: 00010246
RAX: 1ffffffff10d0efe RBX: ffffffff886877f0 RCX: 0000000000040000
RDX: ffffc90012c6e000 RSI: 0000000000000008 RDI: ffff888218178540
RBP: ffffc90006f8fc88 R08: ffffffff879292df R09: ffffed1015da6fc5
R10: ffffed1015da6fc5 R11: 0000000000000000 R12: 00000000ffffffff
R13: ffff888218178540 R14: dffffc0000000000 R15: ffff888218178000
FS:  00007ff1088da700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 0000000093e9b000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 rdev_set_wiphy_params net/wireless/rdev-ops.h:542 [inline]
 cfg80211_wext_siwrts+0x149/0x300 net/wireless/wext-compat.c:267
 ioctl_standard_call+0xd6/0x190 net/wireless/wext-core.c:1015
 wireless_process_ioctl net/wireless/wext-core.c:935 [inline]
 wext_ioctl_dispatch+0xec/0x320 net/wireless/wext-core.c:986
 wext_handle_ioctl+0xd3/0x1a0 net/wireless/wext-core.c:1047
 sock_ioctl+0xe0/0x690 net/socket.c:1112
 do_vfs_ioctl+0x6e2/0x19b0 fs/ioctl.c:47
 ksys_ioctl fs/ioctl.c:749 [inline]
 __do_sys_ioctl fs/ioctl.c:756 [inline]
 __se_sys_ioctl fs/ioctl.c:754 [inline]
 __x64_sys_ioctl+0xe3/0x120 fs/ioctl.c:754
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45b159
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ff1088d9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007ff1088da6d4 RCX: 000000000045b159
RDX: 0000000020000040 RSI: 0000000000008b22 RDI: 0000000000000003
RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000001fe R14: 00000000004c2aa8 R15: 000000000075bf2c
Modules linked in:
CR2: 0000000000000000
---[ end trace 8f8fd42f34fb5c1c ]---
RIP: 0010:0x0
Code: Bad RIP value.
RSP: 0018:ffffc90006f8fc38 EFLAGS: 00010246
RAX: 1ffffffff10d0efe RBX: ffffffff886877f0 RCX: 0000000000040000
RDX: ffffc90012c6e000 RSI: 0000000000000008 RDI: ffff888218178540
RBP: ffffc90006f8fc88 R08: ffffffff879292df R09: ffffed1015da6fc5
R10: ffffed1015da6fc5 R11: 0000000000000000 R12: 00000000ffffffff
R13: ffff888218178540 R14: dffffc0000000000 R15: ffff888218178000
FS:  00007ff1088da700(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000024c97d0 CR3: 0000000093e9b000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400