BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0010) - not-present page
PGD 2fc7c067 P4D 2fc7c067 PUD 287a2067 PMD 0 
Oops: Oops: 0010 [#1] PREEMPT SMP KASAN NOPTI
CPU: 3 UID: 0 PID: 1389 Comm: syz.3.6572 Not tainted 6.11.0-syzkaller-08829-gaf9c191ac2a0 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90005f17818 EFLAGS: 00010246
RAX: 0000000000000008 RBX: ffff888106894000 RCX: 0000000000000001
RDX: ffff88803a4400c2 RSI: ffff888106894000 RDI: ffff88801b0b1000
RBP: ffff88801b0b1000 R08: 0000000000000000 R09: 0000000000000061
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88803a4400c2
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000320
FS:  00007fdaf8a1f6c0(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000292fe000 CR4: 0000000000350ef0
DR0: ffffffffffffffff DR1: 0000000000000001 DR2: 0000000000000000
DR3: 0000000080000001 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 fbcon_putcs+0x364/0x480 drivers/video/fbdev/core/fbcon.c:1302
 do_update_region+0x2e6/0x3f0 drivers/tty/vt/vt.c:619
 invert_screen+0x1da/0x570 drivers/tty/vt/vt.c:740
 highlight drivers/tty/vt/selection.c:57 [inline]
 clear_selection drivers/tty/vt/selection.c:87 [inline]
 clear_selection+0x59/0x70 drivers/tty/vt/selection.c:83
 vc_do_resize+0xd73/0x10b0 drivers/tty/vt/vt.c:1187
 vc_resize include/linux/vt_kern.h:49 [inline]
 fbcon_set_disp+0x7a5/0xe00 drivers/video/fbdev/core/fbcon.c:1403
 con2fb_init_display drivers/video/fbdev/core/fbcon.c:808 [inline]
 set_con2fb_map+0x6fe/0x1060 drivers/video/fbdev/core/fbcon.c:879
 fbcon_set_con2fb_map_ioctl+0x16d/0x220 drivers/video/fbdev/core/fbcon.c:3106
 do_fb_ioctl+0x32a/0x7d0 drivers/video/fbdev/core/fb_chrdev.c:138
 fb_ioctl+0xe5/0x150 drivers/video/fbdev/core/fb_chrdev.c:169
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:907 [inline]
 __se_sys_ioctl fs/ioctl.c:893 [inline]
 __x64_sys_ioctl+0x18d/0x210 fs/ioctl.c:893
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdaf7b7def9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdaf8a1f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fdaf7d35f80 RCX: 00007fdaf7b7def9
RDX: 00000000200000c0 RSI: 0000000000004610 RDI: 0000000000000003
RBP: 00007fdaf7bf0b76 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fdaf7d35f80 R15: 00007ffe8750fa58
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90005f17818 EFLAGS: 00010246
RAX: 0000000000000008 RBX: ffff888106894000 RCX: 0000000000000001
RDX: ffff88803a4400c2 RSI: ffff888106894000 RDI: ffff88801b0b1000
RBP: ffff88801b0b1000 R08: 0000000000000000 R09: 0000000000000061
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88803a4400c2
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000320
FS:  00007fdaf8a1f6c0(0000) GS:ffff88806a900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000292fe000 CR4: 0000000000350ef0
DR0: ffffffffffffffff DR1: 0000000000000001 DR2: 0000000000000000
DR3: 0000000080000001 DR6: 00000000fffe0ff0 DR7: 0000000000000400