==================================================================
BUG: KASAN: global-out-of-bounds in fbcon_resize+0x781/0x810 drivers/video/fbdev/core/fbcon.c:2206
Read of size 4 at addr ffffffff8896c2d8 by task syz-executor.0/20040

CPU: 1 PID: 20040 Comm: syz-executor.0 Not tainted 5.9.0-rc4-syzkaller #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x198/0x1fd lib/dump_stack.c:118
 print_address_description.constprop.0.cold+0x5/0x497 mm/kasan/report.c:383
 __kasan_report mm/kasan/report.c:513 [inline]
 kasan_report.cold+0x1f/0x37 mm/kasan/report.c:530
 fbcon_resize+0x781/0x810 drivers/video/fbdev/core/fbcon.c:2206
 resize_screen drivers/tty/vt/vt.c:1175 [inline]
 vc_do_resize+0x535/0x1150 drivers/tty/vt/vt.c:1246
 vt_resizex drivers/tty/vt/vt_ioctl.c:818 [inline]
 vt_ioctl+0xef0/0x2cc0 drivers/tty/vt/vt_ioctl.c:1036
 vt_compat_ioctl+0x1c9/0x6b0 drivers/tty/vt/vt_ioctl.c:1257
 tty_compat_ioctl+0x19c/0x410 drivers/tty/tty_io.c:2847
 __do_compat_sys_ioctl+0x1d3/0x230 fs/ioctl.c:842
 do_syscall_32_irqs_on arch/x86/entry/common.c:78 [inline]
 __do_fast_syscall_32+0x60/0x90 arch/x86/entry/common.c:137
 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:160
 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c
RIP: 0023:0xf7fc6549
Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 002b:00000000f55c00bc EFLAGS: 00000296 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000000560a
RDX: 0000000020000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

The buggy address belongs to the variable:
 font_vga_8x16+0x58/0x60

Memory state around the buggy address:
 ffffffff8896c180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffffff8896c200: 00 00 00 00 f9 f9 f9 f9 00 f9 f9 f9 f9 f9 f9 f9
>ffffffff8896c280: 00 00 00 00 00 f9 f9 f9 f9 f9 f9 f9 00 00 00 00
                                                    ^
 ffffffff8896c300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffffffff8896c380: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================