audit: type=1804 audit(1657553333.612:2): pid=10298 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="ToMToU" comm="syz-executor.5" name="/root/syzkaller-testdir3092560946/syzkaller.kfKNxc/46/file0" dev="sda1" ino=13976 res=1
BUG: unable to handle kernel paging request at ffff888001000300
IP: __writel arch/x86/include/asm/io.h:71 [inline]
IP: slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:178 [inline]
IP: cfb_imageblit+0xa30/0xe40 drivers/video/fbdev/core/cfbimgblt.c:302
PGD c9dd067 P4D c9dd067 PUD c9de067 PMD 80000000010001e1 
Oops: 0003 [#1] PREEMPT SMP KASAN
Modules linked in:
CPU: 1 PID: 10305 Comm: syz-executor.2 Not tainted 4.14.287-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022
task: ffff8880b1ec65c0 task.stack: ffff88805a5b0000
RIP: 0010:__writel arch/x86/include/asm/io.h:71 [inline]
RIP: 0010:slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:178 [inline]
RIP: 0010:cfb_imageblit+0xa30/0xe40 drivers/video/fbdev/core/cfbimgblt.c:302
RSP: 0018:ffff88805a5b7660 EFLAGS: 00010246
RAX: ffff888001000304 RBX: 000000000000001c RCX: ffffc900084e2000
RDX: 0000000000040000 RSI: ffff888001000300 RDI: dffffc0000000000
RBP: 0000000000000000 R08: 0000000000000232 R09: 0000000000000000
R10: 0000000000000006 R11: 0000000000000000 R12: ffff8880b0bdd35e
R13: 0000000007700000 R14: 0000000000000028 R15: 0000000000000000
FS:  00007f3eabfbd700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff888001000300 CR3: 00000000970f4000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1208 [inline]
 vga16fb_imageblit+0x630/0x2140 drivers/video/fbdev/vga16fb.c:1261
 bit_putcs_unaligned drivers/video/fbdev/core/bitblit.c:139 [inline]
 bit_putcs+0x81e/0xc30 drivers/video/fbdev/core/bitblit.c:188
 fbcon_putcs+0x2fe/0x480 drivers/video/fbdev/core/fbcon.c:1247
 con_flush drivers/tty/vt/vt.c:2223 [inline]
 do_con_write+0x908/0x19b0 drivers/tty/vt/vt.c:2427
 con_write+0x21/0xa0 drivers/tty/vt/vt.c:2822
 process_output_block drivers/tty/n_tty.c:595 [inline]
 n_tty_write+0x352/0xda0 drivers/tty/n_tty.c:2333
 do_tty_write drivers/tty/tty_io.c:959 [inline]
 tty_write+0x410/0x740 drivers/tty/tty_io.c:1043
 __vfs_write+0xe4/0x630 fs/read_write.c:480
 vfs_write+0x17f/0x4d0 fs/read_write.c:544
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0xf2/0x210 fs/read_write.c:582
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f3ead648109
RSP: 002b:00007f3eabfbd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f3ead75af60 RCX: 00007f3ead648109
RDX: 0000000000001006 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 00007f3ead6a205d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe44f2b18f R14: 00007f3eabfbd300 R15: 0000000000022000
Code: 45 7c 24 20 e8 e2 16 1b fe 89 d9 44 89 f8 d3 e0 41 09 c5 39 5c 24 08 0f 87 76 ff ff ff e8 c9 16 1b fe 48 8b 74 24 10 48 8d 46 04 <44> 89 2e 39 5c 24 08 0f 85 44 ff ff ff 45 31 ed 48 89 44 24 10 
RIP: __writel arch/x86/include/asm/io.h:71 [inline] RSP: ffff88805a5b7660
RIP: slow_imageblit drivers/video/fbdev/core/cfbimgblt.c:178 [inline] RSP: ffff88805a5b7660
RIP: cfb_imageblit+0xa30/0xe40 drivers/video/fbdev/core/cfbimgblt.c:302 RSP: ffff88805a5b7660
CR2: ffff888001000300
---[ end trace eee2b3cb2dc90d94 ]---
----------------
Code disassembly (best guess):
   0:	45 7c 24             	rex.RB jl 0x27
   3:	20 e8                	and    %ch,%al
   5:	e2 16                	loop   0x1d
   7:	1b fe                	sbb    %esi,%edi
   9:	89 d9                	mov    %ebx,%ecx
   b:	44 89 f8             	mov    %r15d,%eax
   e:	d3 e0                	shl    %cl,%eax
  10:	41 09 c5             	or     %eax,%r13d
  13:	39 5c 24 08          	cmp    %ebx,0x8(%rsp)
  17:	0f 87 76 ff ff ff    	ja     0xffffff93
  1d:	e8 c9 16 1b fe       	callq  0xfe1b16eb
  22:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
  27:	48 8d 46 04          	lea    0x4(%rsi),%rax
* 2b:	44 89 2e             	mov    %r13d,(%rsi) <-- trapping instruction
  2e:	39 5c 24 08          	cmp    %ebx,0x8(%rsp)
  32:	0f 85 44 ff ff ff    	jne    0xffffff7c
  38:	45 31 ed             	xor    %r13d,%r13d
  3b:	48 89 44 24 10       	mov    %rax,0x10(%rsp)