BUG: unable to handle page fault for address: fffff52000825600 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 23ffed067 P4D 23ffed067 PUD 11dc0067 PMD 146e34067 PTE 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 6022 Comm: syz-executor.2 Not tainted 5.19.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 RIP: 0010:fast_imageblit drivers/video/fbdev/core/sysimgblt.c:257 [inline] RIP: 0010:sys_imageblit+0x1a07/0x2740 drivers/video/fbdev/core/sysimgblt.c:323 Code: 00 48 8d 1c 98 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 48 8b 14 24 0f 85 d4 03 00 00 8b 1b 4a 8d 3c 22 48 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 db 03 00 00 42 89 1c 22 43 0f b6 04 2f RSP: 0018:ffffc90002eef0e0 EFLAGS: 00010a06 RAX: 1ffff92000825600 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000412b000 RSI: 0000000000000f57 RDI: ffffc9000412b000 RBP: ffffc90002eef250 R08: ffffffff84825738 R09: ffffffff84825061 R10: 0000000000000003 R11: ffff888024e30000 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000400 R15: 1ffff11028d8d800 FS: 00007fc111146700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffff52000825600 CR3: 0000000073a42000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: drm_fb_helper_sys_imageblit drivers/gpu/drm/drm_fb_helper.c:825 [inline] drm_fbdev_fb_imageblit+0x163/0x300 drivers/gpu/drm/drm_fb_helper.c:2328 bit_putcs+0x19b9/0x1ed0 fbcon_putcs+0x347/0x520 drivers/video/fbdev/core/fbcon.c:1285 do_update_region+0x530/0x740 drivers/tty/vt/vt.c:676 invert_screen+0x48e/0xef0 drivers/tty/vt/vt.c:800 highlight drivers/tty/vt/selection.c:57 [inline] clear_selection+0x55/0x70 drivers/tty/vt/selection.c:84 vc_do_resize+0x724/0x18c0 drivers/tty/vt/vt.c:1257 fbcon_do_set_font+0xac5/0x1330 drivers/video/fbdev/core/fbcon.c:2431 fbcon_set_font+0xc29/0xf70 drivers/video/fbdev/core/fbcon.c:2522 con_font_set drivers/tty/vt/vt.c:4666 [inline] con_font_op+0xbe8/0x1070 drivers/tty/vt/vt.c:4710 vt_k_ioctl drivers/tty/vt/vt_ioctl.c:474 [inline] vt_ioctl+0x172e/0x1d00 drivers/tty/vt/vt_ioctl.c:752 tty_ioctl+0x874/0xc60 drivers/tty/tty_io.c:2778 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fc110089209 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fc111146168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fc11019bf60 RCX: 00007fc110089209 RDX: 0000000020000180 RSI: 0000000000004b72 RDI: 0000000000000003 RBP: 00007fc1100e3161 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe0b54f17f R14: 00007fc111146300 R15: 0000000000022000 Modules linked in: CR2: fffff52000825600 ---[ end trace 0000000000000000 ]--- RIP: 0010:fast_imageblit drivers/video/fbdev/core/sysimgblt.c:257 [inline] RIP: 0010:sys_imageblit+0x1a07/0x2740 drivers/video/fbdev/core/sysimgblt.c:323 Code: 00 48 8d 1c 98 48 89 d8 48 c1 e8 03 42 0f b6 04 28 84 c0 48 8b 14 24 0f 85 d4 03 00 00 8b 1b 4a 8d 3c 22 48 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 db 03 00 00 42 89 1c 22 43 0f b6 04 2f RSP: 0018:ffffc90002eef0e0 EFLAGS: 00010a06 RAX: 1ffff92000825600 RBX: 0000000000000000 RCX: 0000000000040000 RDX: ffffc9000412b000 RSI: 0000000000000f57 RDI: ffffc9000412b000 RBP: ffffc90002eef250 R08: ffffffff84825738 R09: ffffffff84825061 R10: 0000000000000003 R11: ffff888024e30000 R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000400 R15: 1ffff11028d8d800 FS: 00007fc111146700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: fffff52000825600 CR3: 0000000073a42000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 00 48 8d add %cl,-0x73(%rax) 3: 1c 98 sbb $0x98,%al 5: 48 89 d8 mov %rbx,%rax 8: 48 c1 e8 03 shr $0x3,%rax c: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax 11: 84 c0 test %al,%al 13: 48 8b 14 24 mov (%rsp),%rdx 17: 0f 85 d4 03 00 00 jne 0x3f1 1d: 8b 1b mov (%rbx),%ebx 1f: 4a 8d 3c 22 lea (%rdx,%r12,1),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 db 03 00 00 jne 0x412 37: 42 89 1c 22 mov %ebx,(%rdx,%r12,1) 3b: 43 0f b6 04 2f movzbl (%r15,%r13,1),%eax