audit: type=1400 audit(1576714386.432:36): avc:  denied  { map } for  pid=7074 comm="syz-executor337" path="/root/syz-executor337776476" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
==================================================================
BUG: KASAN: global-out-of-bounds in __fb_pad_aligned_buffer include/linux/fb.h:663 [inline]
BUG: KASAN: global-out-of-bounds in bit_putcs_aligned drivers/video/fbdev/core/bitblit.c:96 [inline]
BUG: KASAN: global-out-of-bounds in bit_putcs+0xc09/0xdb0 drivers/video/fbdev/core/bitblit.c:185
Read of size 1 at addr ffffffff87065680 by task syz-executor337/7074

CPU: 0 PID: 7074 Comm: syz-executor337 Not tainted 4.14.159-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x142/0x197 lib/dump_stack.c:58
 print_address_description.cold+0x5/0x1dc mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report mm/kasan/report.c:409 [inline]
 kasan_report.cold+0xa9/0x2af mm/kasan/report.c:393
 __asan_report_load1_noabort+0x14/0x20 mm/kasan/report.c:427
 __fb_pad_aligned_buffer include/linux/fb.h:663 [inline]
 bit_putcs_aligned drivers/video/fbdev/core/bitblit.c:96 [inline]
 bit_putcs+0xc09/0xdb0 drivers/video/fbdev/core/bitblit.c:185
 fbcon_putcs+0x3c2/0x480 drivers/video/fbdev/core/fbcon.c:1298
 do_update_region+0x2c6/0x650 drivers/tty/vt/vt.c:363
 redraw_screen+0x589/0x7c0 drivers/tty/vt/vt.c:704
 vc_do_resize+0xc8a/0xec0 drivers/tty/vt/vt.c:954
 vc_resize+0x4d/0x60 drivers/tty/vt/vt.c:974
 vt_ioctl+0x10a8/0x2170 drivers/tty/vt/vt_ioctl.c:901
 tty_ioctl+0x841/0x1320 drivers/tty/tty_io.c:2661
 vfs_ioctl fs/ioctl.c:46 [inline]
 file_ioctl fs/ioctl.c:500 [inline]
 do_vfs_ioctl+0x7ae/0x1060 fs/ioctl.c:684
 SYSC_ioctl fs/ioctl.c:701 [inline]
 SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x443f89
RSP: 002b:00007ffd273c5f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000443f89
RDX: 0000000020000000 RSI: 000000000000560a RDI: 0000000000000004
RBP: 00000000006cf018 R08: 0000000000000000 R09: 00000000004002e0
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401c90
R13: 0000000000401d20 R14: 0000000000000000 R15: 0000000000000000

The buggy address belongs to the variable:
 oid_index+0x600/0x9a0

Memory state around the buggy address:
 ffffffff87065580: fa fa fa fa 00 00 00 00 fa fa fa fa 00 00 00 fa
 ffffffff87065600: fa fa fa fa 00 00 00 00 fa fa fa fa 04 fa fa fa
>ffffffff87065680: fa fa fa fa 00 01 fa fa fa fa fa fa 04 fa fa fa
                   ^
 ffffffff87065700: fa fa fa fa 04 fa fa fa fa fa fa fa 07 fa fa fa
 ffffffff87065780: fa fa fa fa 04 fa fa fa fa fa fa fa 05 fa fa fa
==================================================================