8<--- cut here ---
Unable to handle kernel paging request at virtual address e03c4000
pgd = 86f0db80
[e03c4000] *pgd=80000080007003, *pmd=844ad003, *pte=00000000
Internal error: Oops: a07 [#1] PREEMPT SMP ARM
Modules linked in:
CPU: 0 PID: 8309 Comm: syz-executor.0 Not tainted 5.12.0-rc3-syzkaller #0
Hardware name: ARM-Versatile Express
PC is at fast_imageblit drivers/video/fbdev/core/sysimgblt.c:229 [inline]
PC is at sys_imageblit+0x4b0/0x52c drivers/video/fbdev/core/sysimgblt.c:275
LR is at 0xe03c4000
pc : [<808f4744>]    lr : [<e03c4000>]    psr: 00000013
sp : 86d09ad8  ip : 83637560  fp : 86d09b2c
r10: 81b0a288  r9 : 00000000  r8 : e03c4000
r7 : 0000000f  r6 : 83637560  r5 : 00000001  r4 : 00aaaaaa
r3 : 00000000  r2 : 00000007  r1 : 00000001  r0 : 0000002e
Flags: nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 30c5387d  Table: 86f0db80  DAC: fffffffd
Process syz-executor.0 (pid: 8309, stack limit = 0x86d08210)
Stack: (0x86d09ad8 to 0x86d0a000)
9ac0:                                                       86d09b64 00000001
9ae0: 00000001 00000010 00000006 86d09bb4 0000002f 00000030 83637560 84460000
9b00: 82b5a808 86d09bb4 84460000 00000006 86d6848c 00000000 000000ff 83420800
9b20: 86d09b4c 86d09b30 809b5200 808f42a0 00000006 00000001 ffffffff 83637566
9b40: 86d09c1c 86d09b50 808edbf8 809b51c4 83634000 00000000 82b5a808 00000000
9b60: 83420a60 ffffffff ffffffff 8446023c 00000000 00000000 00000000 00000200
9b80: 84460000 00000006 86d68480 00000006 808ed764 833a7b34 84412000 842fce18
9ba0: 00000000 00000001 00000010 00000001 84460000 00000000 00000300 00000030
9bc0: 00000010 00000007 00000000 84460001 83637560 00000000 00000000 00000400
9be0: 00000300 00000400 00000300 56b92eae 86d09c1c 83420800 86d68480 00000006
9c00: 84460000 808ed9d8 00000030 00000007 86d09c64 86d09c20 808e7f48 808ed9e4
9c20: 00000030 00000000 00000007 00000000 00000000 00000007 00000240 86d6848c
9c40: 808e7e60 000009ba 83420800 00000060 86d6848c 00000006 86d09cac 86d09c68
9c60: 8095a3b8 808e7e6c 00000000 86d09c78 808e83c4 00000000 00000000 56b92eae
9c80: 00000001 83420800 00000000 00000001 00000001 00000000 84412000 00000000
9ca0: 86d09ce4 86d09cb0 8095bdc8 8095a2b4 00000000 00000000 00000000 56b92eae
9cc0: 00000000 84460000 83420800 84412000 00000001 00000000 86d09dc4 86d09ce8
9ce0: 808ebb40 8095bbc0 86d09d04 86d09cf8 8181dacc 00000400 00000300 00000400
9d00: 00000300 00000000 00000000 00000020 00000000 00000010 00000008 00000000
9d20: 00000008 00000008 00000000 00000000 00000008 00000000 00000000 00000000
9d40: 00000000 00000000 00000280 00000000 00000000 00000001 00000000 00000000
9d60: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9d80: 00000000 00000000 00000000 00000000 00000000 56b92eae 00000001 833aa120
9da0: 83420800 00000001 00000000 0000003a 83420800 86e2e800 86d09de4 86d09dc8
9dc0: 8095bea8 808eb994 00000000 86e2e800 00004b3a 83420800 86d09e64 86d09de8
9de0: 809535a8 8095be08 8181dacc 8181d97c 86d09e2c 86d09e00 8181c9a4 8181dabc
9e00: 00000000 00000000 81f94a4c 00000103 82bfd371 86415640 00000004 00000036
9e20: 86d09e54 86d09e30 8027ea14 8181c88c 00000000 56b92eae 81f94a4c fffffdfd
9e40: 00004b3a 86e2e800 86415640 fffff73a 00000000 86e2e800 86d09f0c 86d09e68
9e60: 8093f890 80951c38 00000000 56b92eae 837fd3f8 0000003a 834eb8e0 0000004b
9e80: 00000001 86415640 00000004 00000036 86d09eec 86d09ea0 80701b40 806f7810
9ea0: 00000001 0000004b 0000003a 86d09ebc 85991a90 83dc4240 00004b3a 8641560b
9ec0: 86d09eb0 86415640 00000004 56b92eae 821280c8 00000000 86415640 56b92eae
9ee0: 86d09f0c 00004b3a 00000000 86415641 00000000 86415640 00000004 834eb8e0
9f00: 86d09fa4 86d09f10 804f33f4 8093f4d8 8020d140 8020e34c 00000000 80200e90
9f20: 828a2438 80200e90 8686d140 80200060 86d09f4c 86d09f40 8181dacc 8181d97c
9f40: 86d09f74 86d09f50 8181cb8c 8181dabc 86d09f98 80384d84 828abd1c 80200e90
9f60: 60000093 30c5387d 86d09f94 86d09f78 828abd1c 56b92eae 00000000 00000000
9f80: 00000000 00000000 00000036 80200224 86d08000 00000036 00000000 86d09fa8
9fa0: 80200060 804f32e0 00000000 00000000 00000004 00004b3a 00000000 00000000
9fc0: 00000000 00000000 00000000 00000036 7eda933a 76f206d0 7eda94ac 76f2020c
9fe0: 76f20048 76f20038 00018d58 0004b620 60000010 00000004 00000000 00000000
Backtrace: 
[<808f4294>] (sys_imageblit) from [<809b5200>] (drm_fb_helper_sys_imageblit drivers/gpu/drm/drm_fb_helper.c:794 [inline])
[<808f4294>] (sys_imageblit) from [<809b5200>] (drm_fbdev_fb_imageblit+0x48/0x4c drivers/gpu/drm/drm_fb_helper.c:2276)
 r10:83420800 r9:000000ff r8:00000000 r7:86d6848c r6:00000006 r5:84460000
 r4:86d09bb4
[<809b51b8>] (drm_fbdev_fb_imageblit) from [<808edbf8>] (bit_putcs_unaligned drivers/video/fbdev/core/bitblit.c:139 [inline])
[<809b51b8>] (drm_fbdev_fb_imageblit) from [<808edbf8>] (bit_putcs+0x220/0x470 drivers/video/fbdev/core/bitblit.c:188)
 r5:83637566 r4:ffffffff
[<808ed9d8>] (bit_putcs) from [<808e7f48>] (fbcon_putcs+0xe8/0xf0 drivers/video/fbdev/core/fbcon.c:1296)
 r10:00000007 r9:00000030 r8:808ed9d8 r7:84460000 r6:00000006 r5:86d68480
 r4:83420800
[<808e7e60>] (fbcon_putcs) from [<8095a3b8>] (do_update_region+0x110/0x1ac drivers/tty/vt/vt.c:676)
 r10:00000006 r9:86d6848c r8:00000060 r7:83420800 r6:000009ba r5:808e7e60
 r4:86d6848c
[<8095a2a8>] (do_update_region) from [<8095bdc8>] (redraw_screen+0x214/0x248 drivers/tty/vt/vt.c:1035)
 r10:00000000 r9:84412000 r8:00000000 r7:00000001 r6:00000001 r5:00000000
 r4:83420800
[<8095bbb4>] (redraw_screen) from [<808ebb40>] (fbcon_blank+0x1b8/0x250 drivers/video/fbdev/core/fbcon.c:2204)
 r8:00000000 r7:00000001 r6:84412000 r5:83420800 r4:84460000
[<808eb988>] (fbcon_blank) from [<8095bea8>] (do_unblank_screen+0xac/0x17c drivers/tty/vt/vt.c:4405)
 r10:86e2e800 r9:83420800 r8:0000003a r7:00000000 r6:00000001 r5:83420800
 r4:833aa120
[<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_kdsetmode drivers/tty/vt/vt_ioctl.c:276 [inline])
[<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_k_ioctl drivers/tty/vt/vt_ioctl.c:381 [inline])
[<8095bdfc>] (do_unblank_screen) from [<809535a8>] (vt_ioctl+0x197c/0x1be8 drivers/tty/vt/vt_ioctl.c:713)
 r7:83420800 r6:00004b3a r5:86e2e800 r4:00000000
[<80951c2c>] (vt_ioctl) from [<8093f890>] (tty_ioctl+0x3c4/0xc1c drivers/tty/tty_io.c:2801)
 r10:86e2e800 r9:00000000 r8:fffff73a r7:86415640 r6:86e2e800 r5:00004b3a
 r4:fffffdfd
[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (vfs_ioctl fs/ioctl.c:48 [inline])
[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (do_vfs_ioctl fs/ioctl.c:725 [inline])
[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (__do_sys_ioctl fs/ioctl.c:751 [inline])
[<8093f4cc>] (tty_ioctl) from [<804f33f4>] (sys_ioctl+0x120/0xaa4 fs/ioctl.c:739)
 r10:834eb8e0 r9:00000004 r8:86415640 r7:00000000 r6:86415641 r5:00000000
 r4:00004b3a
[<804f32d4>] (sys_ioctl) from [<80200060>] (ret_fast_syscall+0x0/0x2c arch/arm/mm/proc-v7.S:64)
Exception stack(0x86d09fa8 to 0x86d09ff0)
9fa0:                   00000000 00000000 00000004 00004b3a 00000000 00000000
9fc0: 00000000 00000000 00000000 00000036 7eda933a 76f206d0 7eda94ac 76f2020c
9fe0: 76f20048 76f20038 00018d58 0004b620
 r10:00000036 r9:86d08000 r8:80200224 r7:00000036 r6:00000000 r5:00000000
 r4:00000000
Code: e3700001 e79a3103 e0033004 e0233009 (e48e3004) 
---[ end trace 74918e3b5dc9cf2c ]---