general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 0 PID: 12949 Comm: syz-executor.2 Not tainted 5.10.0-rc3-next-20201116-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:drm_atomic_set_crtc_for_connector+0x426/0x5f0 drivers/gpu/drm/drm_atomic_uapi.c:342
Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e a6 00 00 00 48 b8 00 00 00 00 00 fc ff df 41 8b 4d 28 <80> 38 00 0f 85 83 01 00 00 48 8b 2c 25 00 00 00 00 48 b8 00 00 00
RSP: 0018:ffffc9001665f338 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880138a3800 RCX: 0000000000000022
RDX: 1ffff11002f82a66 RSI: ffffffff84302d10 RDI: ffff888017c15330
RBP: 0000000000000000 R08: ffff888142ffe7c0 R09: ffff888017c15343
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888023c90c00
R13: ffff888017c15308 R14: ffff8880138a3808 R15: ffff8880275b2780
FS:  00007effbc135700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000004de050 CR3: 0000000016d32000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 update_output_state drivers/gpu/drm/drm_atomic.c:1454 [inline]
 __drm_atomic_helper_set_config+0x72a/0xe80 drivers/gpu/drm/drm_atomic.c:1568
 drm_client_modeset_commit_atomic+0x527/0x7c0 drivers/gpu/drm/drm_client_modeset.c:1023
 drm_client_modeset_commit_locked+0x145/0x580 drivers/gpu/drm/drm_client_modeset.c:1145
 pan_display_atomic drivers/gpu/drm/drm_fb_helper.c:1379 [inline]
 drm_fb_helper_pan_display+0x28b/0x970 drivers/gpu/drm/drm_fb_helper.c:1439
 fb_pan_display+0x2f7/0x6c0 drivers/video/fbdev/core/fbmem.c:925
 bit_update_start+0x45/0x1f0 drivers/video/fbdev/core/bitblit.c:387
 fbcon_switch+0xcbf/0x16b0 drivers/video/fbdev/core/fbcon.c:2183
 redraw_screen+0x2b9/0x790 drivers/tty/vt/vt.c:1021
 vc_do_resize+0xed3/0x1150 drivers/tty/vt/vt.c:1326
 fbcon_set_disp+0x831/0xda0 drivers/video/fbdev/core/fbcon.c:1413
 con2fb_init_display drivers/video/fbdev/core/fbcon.c:816 [inline]
 set_con2fb_map+0x7a6/0xf80 drivers/video/fbdev/core/fbcon.c:887
 fbcon_set_con2fb_map_ioctl+0x165/0x220 drivers/video/fbdev/core/fbcon.c:3072
 do_fb_ioctl+0x5b6/0x690 drivers/video/fbdev/core/fbmem.c:1156
 fb_ioctl+0xe7/0x150 drivers/video/fbdev/core/fbmem.c:1185
 vfs_ioctl fs/ioctl.c:48 [inline]
 __do_sys_ioctl fs/ioctl.c:753 [inline]
 __se_sys_ioctl fs/ioctl.c:739 [inline]
 __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45deb9
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:00007effbc134c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000000e2c0 RCX: 000000000045deb9
RDX: 0000000020000180 RSI: 0000000000004610 RDI: 0000000000000003
RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007ffc02a2169f R14: 00007effbc1359c0 R15: 000000000118bf2c
Modules linked in:
---[ end trace 8f307ee1c1fccc66 ]---
RIP: 0010:drm_atomic_set_crtc_for_connector+0x426/0x5f0 drivers/gpu/drm/drm_atomic_uapi.c:342
Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e a6 00 00 00 48 b8 00 00 00 00 00 fc ff df 41 8b 4d 28 <80> 38 00 0f 85 83 01 00 00 48 8b 2c 25 00 00 00 00 48 b8 00 00 00
RSP: 0018:ffffc9001665f338 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff8880138a3800 RCX: 0000000000000022
RDX: 1ffff11002f82a66 RSI: ffffffff84302d10 RDI: ffff888017c15330
RBP: 0000000000000000 R08: ffff888142ffe7c0 R09: ffff888017c15343
R10: 0000000000000000 R11: 0000000000000000 R12: ffff888023c90c00
R13: ffff888017c15308 R14: ffff8880138a3808 R15: ffff8880275b2780
FS:  00007effbc135700(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa7740410f8 CR3: 0000000016d32000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400