Unable to handle kernel paging request at virtual address ffff800083c0d3c0
Mem abort info:
  ESR = 0x0000000096000047
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x07: level 3 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000047, ISS2 = 0x00000000
  CM = 0, WnR = 1, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0
swapper pgtable: 4k pages, 52-bit VAs, pgdp=0000000042bba000
[ffff800083c0d3c0] pgd=10000000430da003, p4d=10000000430db003, pud=10000000430dc003, pmd=10000000454f0403, pte=0000000000000000
Internal error: Oops: 0000000096000047 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 11487 Comm: syz.1.2891 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: linux,dummy-virt (DT)
pstate: 21402009 (nzCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--)
pc : fb_write_offset drivers/video/fbdev/core/sysmem.h:30 [inline]
pc : fb_bitmap_2ppw drivers/video/fbdev/core/fb_imageblit.h:364 [inline]
pc : fb_bitmap_imageblit drivers/video/fbdev/core/fb_imageblit.h:462 [inline]
pc : fb_imageblit drivers/video/fbdev/core/fb_imageblit.h:492 [inline]
pc : sys_imageblit+0x5dc/0x700 drivers/video/fbdev/core/sysimgblt.c:24
lr : drm_fbdev_shmem_defio_imageblit+0x1c/0x3c drivers/gpu/drm/drm_fbdev_shmem.c:39
sp : ffff800083feb9d0
x29: ffff800083feba00 x28: 00000000ffffffff x27: fbf00000051a8fc0
x26: 0000000000000001 x25: 0000000000000010 x24: 0000000000000010
x23: 0000000000000001 x22: f5f00000037cf7d0 x21: f4f0000005125000
x20: f4f0000005125000 x19: f5f00000037cf780 x18: 0000000000000001
x17: ffff800083feb9d0 x16: 0000000000001000 x15: fbf00000051a8fc0
x14: 000000000000000f x13: 0000000000000000 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000004 x9 : 0000000000000001
x8 : ffff800083c0d3c0 x7 : 0000000000000000 x6 : 0000000000000002
x5 : 0000000000000003 x4 : 0000000000000004 x3 : fbf00000051a8fc1
x2 : ffff800083feb9d0 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 fb_write_offset drivers/video/fbdev/core/sysmem.h:30 [inline] (P)
 fb_bitmap_2ppw drivers/video/fbdev/core/fb_imageblit.h:364 [inline] (P)
 fb_bitmap_imageblit drivers/video/fbdev/core/fb_imageblit.h:462 [inline] (P)
 fb_imageblit drivers/video/fbdev/core/fb_imageblit.h:492 [inline] (P)
 sys_imageblit+0x5dc/0x700 drivers/video/fbdev/core/sysimgblt.c:24 (P)
 drm_fbdev_shmem_defio_imageblit+0x1c/0x3c drivers/gpu/drm/drm_fbdev_shmem.c:39
 soft_cursor+0x170/0x200 drivers/video/fbdev/core/softcursor.c:74
 bit_cursor+0x260/0x41c drivers/video/fbdev/core/bitblit.c:370
 fbcon_cursor+0xf0/0x140 drivers/video/fbdev/core/fbcon.c:1427
 set_cursor drivers/tty/vt/vt.c:896 [inline]
 set_cursor+0x80/0xb8 drivers/tty/vt/vt.c:887
 con_flush_chars drivers/tty/vt/vt.c:3731 [inline]
 con_write+0x3c/0x58 drivers/tty/vt/vt.c:3662
 process_output_block drivers/tty/n_tty.c:557 [inline]
 n_tty_write+0x124/0x46c drivers/tty/n_tty.c:2366
 iterate_tty_write drivers/tty/tty_io.c:1006 [inline]
 file_tty_write.isra.0+0x11c/0x288 drivers/tty/tty_io.c:1081
 tty_write+0x14/0x20 drivers/tty/tty_io.c:1102
 new_sync_write fs/read_write.c:595 [inline]
 vfs_write+0x244/0x36c fs/read_write.c:687
 ksys_write+0x70/0x108 fs/read_write.c:739
 __do_sys_write fs/read_write.c:750 [inline]
 __se_sys_write fs/read_write.c:747 [inline]
 __arm64_sys_write+0x1c/0x30 fs/read_write.c:747
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x54/0x10c arch/arm64/kernel/syscall.c:49
 el0_svc_common.constprop.0+0x40/0xe0 arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x1c/0x34 arch/arm64/kernel/syscall.c:140
 el0_svc+0x38/0x1fc arch/arm64/kernel/entry-common.c:736
 el0t_64_sync_handler+0xa0/0xf0 arch/arm64/kernel/entry-common.c:755
 el0t_64_sync+0x1a4/0x1a8 arch/arm64/kernel/entry.S:594
Code: d3420c27 93407c04 d37d0421 f86d7840 (f82cd900) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	d3420c27 	ubfx	x7, x1, #2, #2
   4:	93407c04 	sxtw	x4, w0
   8:	d37d0421 	ubfiz	x1, x1, #3, #2
   c:	f86d7840 	ldr	x0, [x2, x13, lsl #3]
* 10:	f82cd900 	str	x0, [x8, w12, sxtw #3] <-- trapping instruction