BUG: unable to handle kernel paging request at ffff888001000028 PGD b001067 P4D b001067 PUD b002067 PMD 80000000010001e1 Oops: 0003 [#1] PREEMPT SMP KASAN CPU: 0 PID: 10323 Comm: syz-executor.2 Not tainted 4.19.160-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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+0x741/0xec0 drivers/video/fbdev/core/cfbimgblt.c:302 Code: 0f 85 91 03 00 00 41 0f b6 45 00 44 89 e1 d3 f8 89 d9 a8 01 44 89 d0 0f 45 c6 89 c7 d3 e7 41 09 ff 41 39 db 77 1f 48 8d 7a 04 <44> 89 3a 41 39 db 0f 84 51 02 00 00 b9 20 00 00 00 48 89 fa 29 d9 RSP: 0018:ffff88809de27530 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 000000000000001c RCX: 000000000000001c RDX: ffff888001000028 RSI: 0000000000000007 RDI: ffff88800100002c RBP: ffff88809de275e8 R08: dffffc0000000000 R09: 0000000000000004 R10: 0000000000000000 R11: 000000000000001c R12: 0000000000000000 R13: ffff88823933cb0a R14: 0000000000000000 R15: 0000000007777077 FS: 00007fed4f25a700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff888001000028 CR3: 00000000aa1e8000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: vga_imageblit_expand drivers/video/fbdev/vga16fb.c:1207 [inline] vga16fb_imageblit+0x620/0x2380 drivers/video/fbdev/vga16fb.c:1260 bit_putcs_unaligned drivers/video/fbdev/core/bitblit.c:139 [inline] bit_putcs+0x87c/0xcb0 drivers/video/fbdev/core/bitblit.c:188 fbcon_putcs+0x302/0x5f0 drivers/video/fbdev/core/fbcon.c:1269 con_flush drivers/tty/vt/vt.c:2559 [inline] do_con_write.part.13+0x73b/0x1aa0 drivers/tty/vt/vt.c:2764 do_con_write drivers/tty/vt/vt.c:2578 [inline] con_write+0x1f/0x80 drivers/tty/vt/vt.c:3145 process_output_block drivers/tty/n_tty.c:593 [inline] n_tty_write+0x4a4/0x1050 drivers/tty/n_tty.c:2331 do_tty_write drivers/tty/tty_io.c:960 [inline] tty_write+0x342/0x770 drivers/tty/tty_io.c:1044 __vfs_write+0xe3/0x890 fs/read_write.c:485 vfs_write+0x150/0x4d0 fs/read_write.c:549 ksys_write+0x103/0x260 fs/read_write.c:599 __do_sys_write fs/read_write.c:611 [inline] __se_sys_write fs/read_write.c:608 [inline] __x64_sys_write+0x6e/0xb0 fs/read_write.c:608 do_syscall_64+0xd0/0x4e0 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45e179 Code: 3d b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 0b b2 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fed4f259c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00000000000393c0 RCX: 000000000045e179 RDX: 0000000000001006 RSI: 0000000020001440 RDI: 0000000000000008 RBP: 000000000118d028 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118cff4 R13: 00007ffee12d65bf R14: 00007fed4f25a9c0 R15: 000000000118cff4 Modules linked in: CR2: ffff888001000028 ---[ end trace 529804764060b2bd ]--- 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+0x741/0xec0 drivers/video/fbdev/core/cfbimgblt.c:302 Code: 0f 85 91 03 00 00 41 0f b6 45 00 44 89 e1 d3 f8 89 d9 a8 01 44 89 d0 0f 45 c6 89 c7 d3 e7 41 09 ff 41 39 db 77 1f 48 8d 7a 04 <44> 89 3a 41 39 db 0f 84 51 02 00 00 b9 20 00 00 00 48 89 fa 29 d9 RSP: 0018:ffff88809de27530 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 000000000000001c RCX: 000000000000001c RDX: ffff888001000028 RSI: 0000000000000007 RDI: ffff88800100002c RBP: ffff88809de275e8 R08: dffffc0000000000 R09: 0000000000000004 R10: 0000000000000000 R11: 000000000000001c R12: 0000000000000000 R13: ffff88823933cb0a R14: 0000000000000000 R15: 0000000007777077 FS: 00007fed4f25a700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff888001000028 CR3: 00000000aa1e8000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400