audit: type=1804 audit(1610751699.843:173): pid=15379 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir888745879/syzkaller.oEAedt/140/file1/bus" dev="loop3" ino=57 res=1 BUG: unable to handle kernel paging request at ffff888001000108 PGD de01067 P4D de01067 PUD de02067 PMD 80000000010001e1 Oops: 0003 [#1] PREEMPT SMP KASAN CPU: 0 PID: 15372 Comm: syz-executor.4 Not tainted 4.19.167-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 85 8e c0 fd 45 39 e7 0f 87 44 ff ff ff e8 87 8d c0 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 58 8e c0 fd 45 39 e7 0f 85 04 ff ff ff RSP: 0018:ffff8880500a7160 EFLAGS: 00010246 RAX: ffff888001000108 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff83a44479 RDI: ffff88800100010c RBP: 0000000000000000 R08: ffff8880b06f49ef R09: 000000000000001c R10: 0000000000000004 R11: 0000000000000000 R12: 000000000000001c R13: 0000000000000000 R14: ffff8880b06f49e9 R15: 000000000000001c FS: 00007fb149fcc700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff888001000108 CR3: 00000000b44e6000 CR4: 00000000001426f0 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+0x1126/0x1740 drivers/video/fbdev/core/bitblit.c:377 fbcon_cursor+0x523/0x700 drivers/video/fbdev/core/fbcon.c:1309 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: 0033:0x45e219 Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb149fcbc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045e219 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 000000000119c070 R08: 0000000000000000 R09: 0000000000000000 R10: 0800000080004103 R11: 0000000000000246 R12: 000000000119c034 R13: 00007ffde89f425f R14: 00007fb149fcc9c0 R15: 000000000119c034 Modules linked in: CR2: ffff888001000108 ---[ end trace f048d9d170cde89b ]--- 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 85 8e c0 fd 45 39 e7 0f 87 44 ff ff ff e8 87 8d c0 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 58 8e c0 fd 45 39 e7 0f 85 04 ff ff ff RSP: 0018:ffff8880500a7160 EFLAGS: 00010246 RAX: ffff888001000108 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff83a44479 RDI: ffff88800100010c RBP: 0000000000000000 R08: ffff8880b06f49ef R09: 000000000000001c R10: 0000000000000004 R11: 0000000000000000 R12: 000000000000001c R13: 0000000000000000 R14: ffff8880b06f49e9 R15: 000000000000001c FS: 00007fb149fcc700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffff888001000108 CR3: 00000000b44e6000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400