BUG: unable to handle kernel paging request at 0000000000137408 PGD 100067 P4D 100067 PUD 101067 PMD 0 Oops: 0002 [#1] PREEMPT SMP KASAN CPU: 0 PID: 9875 Comm: syz-executor373 Not tainted 4.19.143-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+0x99b/0x1040 drivers/video/fbdev/core/cfbimgblt.c:302 Code: e0 09 44 24 04 e8 35 a4 e7 fd 45 39 e7 0f 87 44 ff ff ff e8 37 a3 e7 fd 48 8b 44 24 08 8b 4c 24 04 48 8d 78 04 48 89 7c 24 08 <89> 08 44 89 e6 44 89 ff e8 08 a4 e7 fd 45 39 e7 0f 85 04 ff ff ff RSP: 0018:ffff888000137160 EFLAGS: 00010293 RAX: 0000000000137408 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff83820e99 RDI: 000000000013740c RBP: 0000000000000000 R08: ffff8880a5748f7f R09: 000000000000001c R10: 0000000000000004 R11: 0000000000000000 R12: 000000000000001c R13: 0000000000000000 R14: ffff8880a5748f72 R15: 000000000000001c FS: 00007f48dc3f7700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000137408 CR3: 000000000005f000 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+0x6b4/0x2260 drivers/video/fbdev/vga16fb.c:1260 soft_cursor+0x514/0xa30 drivers/video/fbdev/core/softcursor.c:74 bit_cursor+0x1239/0x1820 drivers/video/fbdev/core/bitblit.c:386 fbcon_cursor+0x555/0x760 drivers/video/fbdev/core/fbcon.c:1372 set_cursor drivers/tty/vt/vt.c:915 [inline] set_cursor+0x1dd/0x230 drivers/tty/vt/vt.c:906 con_flush_chars drivers/tty/vt/vt.c:3225 [inline] con_flush_chars drivers/tty/vt/vt.c:3214 [inline] con_write+0x8f/0xb0 drivers/tty/vt/vt.c:3146 do_output_char+0x5de/0x850 drivers/tty/n_tty.c:445 process_output drivers/tty/n_tty.c:512 [inline] n_tty_write+0x46e/0xff0 drivers/tty/n_tty.c:2343 do_tty_write drivers/tty/tty_io.c:960 [inline] tty_write+0x496/0x810 drivers/tty/tty_io.c:1044 __vfs_write+0xf7/0x770 fs/read_write.c:485 __kernel_write+0x109/0x370 fs/read_write.c:506 write_pipe_buf+0x153/0x1f0 fs/splice.c:798 splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x389/0x800 fs/splice.c:627 splice_from_pipe fs/splice.c:662 [inline] default_file_splice_write+0xd8/0x180 fs/splice.c:810 do_splice_from fs/splice.c:852 [inline] direct_splice_actor+0x115/0x160 fs/splice.c:1025 splice_direct_to_actor+0x33f/0x8d0 fs/splice.c:980 do_splice_direct+0x1a7/0x270 fs/splice.c:1068 do_sendfile+0x550/0xc30 fs/read_write.c:1447 __do_sys_sendfile64 fs/read_write.c:1508 [inline] __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x446ad9 Code: e8 9c b4 02 00 48 83 c4 18 c3 0f 1f 80 00 00 00 00 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 8b 07 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f48dc3f6d18 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00000000006dbc58 RCX: 0000000000446ad9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 00000000006dbc50 R08: 65732f636f72702f R09: 65732f636f72702f R10: 0800000080004103 R11: 0000000000000246 R12: 00000000006dbc5c R13: 00007f48dc3f6d20 R14: 00007f48dc3f6d20 R15: 20c49ba5e353f7cf Modules linked in: CR2: 0000000000137408 ---[ end trace 722a8ad8a5d4be3b ]--- 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+0x99b/0x1040 drivers/video/fbdev/core/cfbimgblt.c:302 Code: e0 09 44 24 04 e8 35 a4 e7 fd 45 39 e7 0f 87 44 ff ff ff e8 37 a3 e7 fd 48 8b 44 24 08 8b 4c 24 04 48 8d 78 04 48 89 7c 24 08 <89> 08 44 89 e6 44 89 ff e8 08 a4 e7 fd 45 39 e7 0f 85 04 ff ff ff RSP: 0018:ffff888000137160 EFLAGS: 00010293 RAX: 0000000000137408 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff83820e99 RDI: 000000000013740c RBP: 0000000000000000 R08: ffff8880a5748f7f R09: 000000000000001c R10: 0000000000000004 R11: 0000000000000000 R12: 000000000000001c R13: 0000000000000000 R14: ffff8880a5748f72 R15: 000000000000001c FS: 00007f48dc3f7700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000137408 CR3: 000000000005f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400