syzbot

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WARNING: CPU: 1 PID: 5966 at drivers/gpu/drm/drm_prime.c:223 drm_prime_destroy_file_private+0x43/0x60 drivers/gpu/drm/drm_prime.c:223
Modules linked in:
CPU: 1 UID: 0 PID: 5966 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:drm_prime_destroy_file_private+0x43/0x60 drivers/gpu/drm/drm_prime.c:223
Code: 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 21 48 8b 83 90 00 00 00 48 85 c0 75 06 5b e9 13 ed 6c fc e8 0e ed 6c fc 90 <0f> 0b 90 5b e9 04 ed 6c fc e8 3f 74 d5 fc eb d8 66 66 2e 0f 1f 84
RSP: 0018:ffffc90003307cc8 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88807d24a380 RCX: ffffffff8b67db01
RDX: ffff888033d9c900 RSI: ffffffff85504ba2 RDI: ffff88807d24a410
RBP: ffff88807d24a000 R08: 0000000000000001 R09: fffff52000660f79
R10: ffffc90003307bcf R11: 0000000000000000 R12: ffff888141b84000
R13: ffff88807d24a2b0 R14: 0000000000000000 R15: ffff88807d24a2d8
FS:  000055556a4e6500(0000) GS:ffff888124ad6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcdc50bd38 CR3: 0000000073214000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 drm_file_free.part.0+0x7ee/0xcd0 drivers/gpu/drm/drm_file.c:269
 drm_file_free drivers/gpu/drm/drm_file.c:237 [inline]
 drm_close_helper.isra.0+0x186/0x1f0 drivers/gpu/drm/drm_file.c:290
 drm_release+0x1ab/0x360 drivers/gpu/drm/drm_file.c:438
 __fput+0x402/0xb70 fs/file_table.c:468
 task_work_run+0x150/0x240 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x130 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x426/0xfa0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdf6d58eec9
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:00007ffddbd22698 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 0000000000013947 RCX: 00007fdf6d58eec9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 00000006dbd2298f
R10: 0000001b2df20000 R11: 0000000000000246 R12: 00007fdf6d7e5fac
R13: 00007fdf6d7e5fa0 R14: ffffffffffffffff R15: 0000000000000003
 </TASK>