BUG: unable to handle page fault for address: fffff520048ab200
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 23ffed067 P4D 23ffed067 PUD 17616067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 9183 Comm: syz.7.897 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:fast_imageblit drivers/video/fbdev/core/sysimgblt.c:276 [inline]
RIP: 0010:sys_imageblit+0x2016/0x25d0 drivers/video/fbdev/core/sysimgblt.c:323
Code: b0 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 0f 85 b7 00 00 00 45 8b 36 48 8b 44 24 18 48 c1 e8 03 <0f> b6 04 08 84 c0 0f 85 d1 00 00 00 48 8b 44 24 20 46 89 34 a8 44
RSP: 0018:ffffc900039273a0 EFLAGS: 00010a06
RAX: 1ffff920048ab200 RBX: ffff888144399996 RCX: dffffc0000000000
RDX: ffffc9001fc0b000 RSI: 000000000000c998 RDI: 000000000000c999
RBP: ffffc90003927508 R08: ffff888072ff1e00 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000002 R12: 0000000000000008
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000007
FS:  00007fb3f426a6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff520048ab200 CR3: 0000000057b2e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 drm_fb_helper_sys_imageblit+0x2e/0x510 drivers/gpu/drm/drm_fb_helper.c:864
 ccw_putcs_aligned drivers/video/fbdev/core/fbcon_ccw.c:125 [inline]
 ccw_putcs+0xf26/0x11e0 drivers/video/fbdev/core/fbcon_ccw.c:175
 fbcon_putcs+0x358/0x510 drivers/video/fbdev/core/fbcon.c:1299
 do_update_region+0x4e5/0x640 drivers/tty/vt/vt.c:676
 redraw_screen+0xa2c/0x1000 drivers/tty/vt/vt.c:1035
 vc_do_resize+0x122c/0x17b0 drivers/tty/vt/vt.c:1342
 vt_resizex+0x3ec/0x5a0 drivers/tty/vt/vt_ioctl.c:720
 vt_ioctl+0xfd7/0x1ca0 drivers/tty/vt/vt_ioctl.c:941
 tty_ioctl+0x7e6/0xba0 drivers/tty/tty_io.c:2776
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:870 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb3f339e159
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb3f426a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fb3f3626180 RCX: 00007fb3f339e159
RDX: 00002000000006c0 RSI: 000000000000560a RDI: 000000000000000a
RBP: 00007fb3f343503b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fb3f3626218 R14: 00007fb3f3626180 R15: 00007ffca68ab538
 </TASK>
Modules linked in:
CR2: fffff520048ab200
---[ end trace 0000000000000000 ]---
RIP: 0010:fast_imageblit drivers/video/fbdev/core/sysimgblt.c:276 [inline]
RIP: 0010:sys_imageblit+0x2016/0x25d0 drivers/video/fbdev/core/sysimgblt.c:323
Code: b0 4c 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 0f 85 b7 00 00 00 45 8b 36 48 8b 44 24 18 48 c1 e8 03 <0f> b6 04 08 84 c0 0f 85 d1 00 00 00 48 8b 44 24 20 46 89 34 a8 44
RSP: 0018:ffffc900039273a0 EFLAGS: 00010a06
RAX: 1ffff920048ab200 RBX: ffff888144399996 RCX: dffffc0000000000
RDX: ffffc9001fc0b000 RSI: 000000000000c998 RDI: 000000000000c999
RBP: ffffc90003927508 R08: ffff888072ff1e00 R09: 0000000000000003
R10: 0000000000000004 R11: 0000000000000002 R12: 0000000000000008
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000007
FS:  00007fb3f426a6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffff520048ab200 CR3: 0000000057b2e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	b0 4c                	mov    $0x4c,%al
   2:	89 f0                	mov    %esi,%eax
   4:	48 c1 e8 03          	shr    $0x3,%rax
   8:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
   f:	fc ff df
  12:	0f b6 04 08          	movzbl (%rax,%rcx,1),%eax
  16:	84 c0                	test   %al,%al
  18:	0f 85 b7 00 00 00    	jne    0xd5
  1e:	45 8b 36             	mov    (%r14),%r14d
  21:	48 8b 44 24 18       	mov    0x18(%rsp),%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	0f b6 04 08          	movzbl (%rax,%rcx,1),%eax <-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	0f 85 d1 00 00 00    	jne    0x107
  36:	48 8b 44 24 20       	mov    0x20(%rsp),%rax
  3b:	46 89 34 a8          	mov    %r14d,(%rax,%r13,4)
  3f:	44                   	rex.R