faux_driver vgem: [drm] Unknown color mode 2054; guessing buffer size.
------------[ cut here ]------------
WARNING: lib/idr.c:86 at idr_alloc+0xb6/0xd0 lib/idr.c:86, CPU#1: syz.5.61/6249
Modules linked in:
CPU: 1 UID: 0 PID: 6249 Comm: syz.5.61 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:idr_alloc+0xb6/0xd0 lib/idr.c:86
Code: 04 65 48 8b 05 bb 19 30 07 48 3b 44 24 08 75 24 89 d8 48 83 c4 10 5b 41 5c 41 5e 41 5f 5d e9 8c 4a c0 f5 cc e8 3b 01 71 f6 90 <0f> 0b 90 bb ea ff ff ff eb cd e8 5b a9 09 00 66 66 2e 0f 1f 84 00
RSP: 0018:ffffc9000bd77ba8 EFLAGS: 00010287
RAX: ffffffff8b4ff685 RBX: 0000000000002800 RCX: 0000000000080000
RDX: ffffc9000d0da000 RSI: 00000000000003c9 RDI: 00000000000003ca
RBP: 00000000feffff7f R08: 0000000000002800 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520017aef6c R12: 00000000feffff80
R13: 1ffff920017aefb6 R14: ffff888027365000 R15: ffff88807b25f088
FS:  00007f749b36b6c0(0000) GS:ffff888125f1f000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3c1da6 CR3: 00000000317a0000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 drm_gem_change_handle_ioctl+0x20e/0x550 drivers/gpu/drm/drm_gem.c:980
 drm_ioctl_kernel+0x2cf/0x390 drivers/gpu/drm/drm_ioctl.c:804
 drm_ioctl+0x67f/0xb10 drivers/gpu/drm/drm_ioctl.c:901
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xec/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f749a58f749
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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f749b36b038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f749a7e5fa0 RCX: 00007f749a58f749
RDX: 0000200000000080 RSI: 00000000c00c64d2 RDI: 0000000000000003
RBP: 00007f749a613f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f749a7e6038 R14: 00007f749a7e5fa0 R15: 00007ffd2546b8b8
 </TASK>