------------[ cut here ]------------
WARNING: lib/idr.c:86 at idr_alloc+0x1f8/0x280 lib/idr.c:86, CPU#0: syz.3.120/7158
Modules linked in:
CPU: 0 UID: 0 PID: 7158 Comm: syz.3.120 Not tainted syzkaller #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : idr_alloc+0x1f8/0x280 lib/idr.c:86
lr : idr_alloc+0x1f8/0x280 lib/idr.c:86
sp : ffff8000a1c37880
x29: ffff8000a1c37920 x28: dfff800000000000 x27: ffff700014386f14
x26: dfff800000000000 x25: ffff700014386f30 x24: 00000000cac8c2c5
x23: 0000000000002800 x22: ffff0000db7ed000 x21: ffff8000a1c378a0
x20: 00000000cac8c2c4 x19: ffff0000d176c088 x18: 00000000ffffffff
x17: ffff800093599000 x16: ffff8000805448d4 x15: ffff700014386f18
x14: 1ffff00014386f18 x13: 0000000000000004 x12: ffffffffffffffff
x11: ffff700014386f18 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff0000d7b83900 x7 : ffff800083e7cad0 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000002800 x3 : 00000000cac8c2c5
x2 : 00000000cac8c2c4 x1 : 00000000cac8c2c4 x0 : 0000000000000000
Call trace:
 idr_alloc+0x1f8/0x280 lib/idr.c:86 (P)
 drm_gem_change_handle_ioctl+0x1a4/0x4a0 drivers/gpu/drm/drm_gem.c:980
 drm_ioctl_kernel+0x238/0x310 drivers/gpu/drm/drm_ioctl.c:804
 drm_ioctl+0x65c/0xa5c 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 fs/ioctl.c:583 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:583
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x254 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x198/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x5c/0x26c arch/arm64/kernel/entry-common.c:724
 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:743
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
irq event stamp: 1488
hardirqs last  enabled at (1487): [<ffff800080caa144>] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234
hardirqs last disabled at (1488): [<ffff80008af93820>] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412
softirqs last  enabled at (1466): [<ffff8000801fa738>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (1464): [<ffff8000801fa704>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---