------------[ cut here ]------------
[  205.298653] drm-kunit-mock-device drm_test_framebuffer_free.drm-kunit-mock-device: [drm] drm_WARN_ON(!list_empty(&fb->filp_head))
[  205.299721] WARNING: CPU: 0 PID: 2028 at drivers/gpu/drm/drm_framebuffer.c:832 drm_framebuffer_free+0x136/0x1b0
[  205.302366] Modules linked in:
[  205.302801] CPU: 0 UID: 0 PID: 2028 Comm: kunit_try_catch Tainted: G    B D          N 6.12.0-next-20241122 #1
[  205.304450] Tainted: [B]=BAD_PAGE, [D]=DIE, [N]=TEST
[  205.304854] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
[  205.306193] RIP: 0010:drm_framebuffer_free+0x136/0x1b0
[  205.306754] Code: 8b 7d 50 4d 85 ff 74 2b 4c 89 ef e8 54 1c 80 00 48 c7 c1 00 08 fb 88 4c 89 fa 48 c7 c7 60 08 fb 88 48 89 c6 e8 6b 97 86 fe 90 <0f> 0b 90 90 e9 25 ff ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 ea
[  205.308355] RSP: 0000:ffff888106567bd8 EFLAGS: 00010282
[  205.308798] RAX: 0000000000000000 RBX: ffff888106567cb0 RCX: 1ffffffff13a42ec
[  205.309337] RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
[  205.310314] RBP: ffff888106567c00 R08: 0000000000000000 R09: fffffbfff13a42ec
[  205.310852] R10: 0000000000000003 R11: 0000000000027970 R12: ffff888106567c88
[  205.312374] R13: ffff8881061c0800 R14: ffff888106327000 R15: ffff888105de7700
[  205.312897] FS:  0000000000000000(0000) GS:ffff88815b000000(0000) knlGS:0000000000000000
[  205.313754] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  205.314821] CR2: 00007ffff7ffe000 CR3: 00000001110b8000 CR4: 00000000000006f0
[  205.315754] DR0: ffffffff8afea1a0 DR1: ffffffff8afea1a1 DR2: ffffffff8afea1a3
[  205.316479] DR3: ffffffff8afea1a5 DR6: 00000000ffff0ff0 DR7: 0000000000000600
[  205.317402] Call Trace:
[  205.317611]  <TASK>
[  205.317938]  ? show_regs+0x68/0x80
[  205.318982]  ? __warn+0xd5/0x260
[  205.319267]  ? drm_framebuffer_free+0x136/0x1b0
[  205.319724]  ? report_bug+0x278/0x2e0
[  205.320804]  ? drm_framebuffer_free+0x137/0x1b0
[  205.321245]  ? handle_bug+0x5c/0xb0
[  205.322295]  ? exc_invalid_op+0x1c/0x50
[  205.322667]  ? asm_exc_invalid_op+0x1f/0x30
[  205.323490]  ? drm_framebuffer_free+0x136/0x1b0
[  205.323906]  ? drm_framebuffer_free+0x135/0x1b0
[  205.324814]  drm_test_framebuffer_free+0x1ac/0x610
[  205.325909]  ? __pfx_drm_test_framebuffer_free+0x10/0x10
[  205.326325]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  205.327297]  ? __pfx_drm_mode_config_init_release+0x10/0x10
[  205.327760]  ? __drmm_add_action_or_reset+0x22/0x50
[  205.328683]  ? __schedule+0xc3e/0x2790
[  205.329450]  ? __pfx_read_tsc+0x10/0x10
[  205.329761]  ? ktime_get_ts64+0x84/0x230
[  205.330816]  kunit_try_run_case+0x1b3/0x490
[  205.331299]  ? __pfx_kunit_try_run_case+0x10/0x10
[  205.331780]  ? _raw_spin_lock_irqsave+0xa2/0x110
[  205.332575]  ? _raw_spin_unlock_irqrestore+0x5f/0x90
[  205.333056]  ? __kthread_parkme+0x82/0x160
[  205.334366]  ? preempt_count_sub+0x50/0x80
[  205.334757]  ? __pfx_kunit_try_run_case+0x10/0x10
[  205.335635]  ? __pfx_kunit_generic_run_threadfn_adapter+0x10/0x10
[  205.336178]  kunit_generic_run_threadfn_adapter+0x85/0xf0
[  205.336858]  kthread+0x257/0x310
[  205.337609]  ? __pfx_kthread+0x10/0x10
[  205.338405]  ret_from_fork+0x41/0x80
[  205.338774]  ? __pfx_kthread+0x10/0x10
[  205.339733]  ret_from_fork_asm+0x1a/0x30
[  205.340520]  </TASK>
[  205.340888] ---[ end trace 0000000000000000 ]---