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WARNING: lib/idr.c:86 at idr_alloc+0xb6/0xd0 lib/idr.c:86, CPU#0: syz.3.5550/9127
Modules linked in:
CPU: 0 UID: 0 PID: 9127 Comm: syz.3.5550 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/13/2026
RIP: 0010:idr_alloc+0xb6/0xd0 lib/idr.c:86
Code: 04 65 48 8b 05 1b 92 65 07 48 3b 44 24 08 75 24 89 d8 48 83 c4 10 5b 41 5c 41 5e 41 5f 5d e9 41 c5 0c 00 cc e8 2b 59 37 f6 90 <0f> 0b 90 bb ea ff ff ff eb cd e8 bb df 09 00 66 66 2e 0f 1f 84 00
RSP: 0018:ffffc9000b927b88 EFLAGS: 00010287
RAX: ffffffff8b8d1e25 RBX: 0000000000002800 RCX: 0000000000080000
RDX: ffffc9001d82b000 RSI: 00000000000003c2 RDI: 00000000000003c3
RBP: 00000000a3fc7dc3 R08: 0000000000002800 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff52001724f68 R12: 00000000a3fc7dc4
R13: 1ffff92001724fb6 R14: ffff888055b28800 R15: ffff88807d806088
FS:  00007fed71a376c0(0000) GS:ffff8881256f5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c36104b CR3: 00000000791c4000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 drm_gem_change_handle_ioctl+0x20e/0x550 drivers/gpu/drm/drm_gem.c:980
 drm_ioctl_kernel+0x2df/0x3b0 drivers/gpu/drm/drm_ioctl.c:804
 drm_ioctl+0x6ba/0xb80 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+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fed70b9aeb9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fed71a37028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fed70e15fa0 RCX: 00007fed70b9aeb9
RDX: 0000200000000300 RSI: 00000000c00864d2 RDI: 0000000000000006
RBP: 00007fed70c08c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fed70e16038 R14: 00007fed70e15fa0 R15: 00007fed70f3fa48
 </TASK>