------------[ cut here ]------------
!RB_EMPTY_ROOT(&prime_fpriv->dmabufs)
WARNING: drivers/gpu/drm/drm_prime.c:224 at drm_prime_destroy_file_private+0x48/0x60 drivers/gpu/drm/drm_prime.c:224, CPU#0: syz.1.7035/31767
Modules linked in:
CPU: 0 UID: 0 PID: 31767 Comm: syz.1.7035 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:drm_prime_destroy_file_private+0x48/0x60 drivers/gpu/drm/drm_prime.c:224
Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 75 2b 48 8b 83 88 00 00 00 48 85 c0 75 0b e8 14 d0 65 fc 5b e9 4e d4 ea 05 e8 09 d0 65 fc 90 <0f> 0b 90 e8 00 d0 65 fc 5b c3 cc cc cc cc e8 15 8f d3 fc eb ce 0f
RSP: 0018:ffffc90005a6fc90 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880847a4328 RCX: ffffffff8b8bd29d
RDX: ffff888041912500 RSI: ffffffff85a2d6d7 RDI: ffff8880847a43b0
RBP: ffff8880847a4000 R08: 0000000000000001 R09: fffff52000b4df72
R10: ffffc90005a6fb97 R11: 0000000000000000 R12: ffff888027218000
R13: ffff8880847a4260 R14: 0000000000000000 R15: ffff8880847a4288
FS:  0000555584b8b500(0000) GS:ffff888124372000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3351aff8 CR3: 00000000957c6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 drm_file_free.part.0+0x7e6/0xcc0 drivers/gpu/drm/drm_file.c:269
 drm_file_free drivers/gpu/drm/drm_file.c:237 [inline]
 drm_close_helper.isra.0+0x186/0x200 drivers/gpu/drm/drm_file.c:290
 drm_release+0x1ab/0x360 drivers/gpu/drm/drm_file.c:438
 __fput+0x3ff/0xb50 fs/file_table.c:510
 task_work_run+0x150/0x240 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:67 [inline]
 exit_to_user_mode_loop+0x107/0x4f0 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x706/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc1ccd9cdd9
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:00007ffc0e253ef8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007ffc0e253fe0 RCX: 00007fc1ccd9cdd9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00000000001c1113 R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b32320000 R11: 0000000000000246 R12: 00007ffc0e254020
R13: 00007fc1cd015fac R14: 00000000001c1156 R15: 00007fc1cd015fa0
 </TASK>