On Thu, Jan 8, 2026 at 3:25 AM '王志' via syzkaller-bugs <[email protected]> wrote: > > syzbot has found the following issue on:
Please do not mark bugs that you report yourself as [syzbot], it's not correct and very confusing. > > HEAD commit: 6.18.0-rcX > git tree: linux-stable > console output: (see below) > kernel config: (please provide if available) > > --- > > WARNING: CPU: 3 PID: 28430 at drivers/gpu/drm/drm_prime.c:223 > drm_prime_destroy_file_private+0x43/0x60 > Modules linked in: > CPU: 3 UID: 0 PID: 28430 Comm: syz.0.6460 Not tainted 6.18.0 #1 PREEMPT(full) > Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS > rel-1.16.3-0-ga6ed6b701f0a-prebuilt.qemu.org 04/01/2014 > RIP: 0010:drm_prime_destroy_file_private+0x43/0x60 > 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 a3 4f 81 fc e8 9e 4f 81 fc 90 <0f> 0b 90 5b e9 94 4f > 81 fc e8 7f a8 e7 fc eb d8 66 66 2e 0f 1f 84 > RSP: 0018:ffffc900032c7cb8 EFLAGS: 00010293 > RAX: 0000000000000000 RBX: ffff888100aa4380 RCX: ffffffff8b428d97 > RDX: ffff888122c61d00 RSI: ffffffff85390862 RDI: ffff888100aa4410 > RBP: 0000000000000000 R08: 0000000000000001 R09: fffff52000658f77 > R10: ffffc900032c7bbf R11: 0000000000000000 R12: ffff888100aa4000 > R13: dffffc0000000000 R14: ffff888100aa42d8 R15: ffff888100aa42b0 > FS: 000055556463b500(0000) GS:ffff8881a2701000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 000000110c2acc50 CR3: 00000001326c0000 CR4: 00000000000006f0 > > Call Trace: > <TASK> > drm_file_free.part.0+0x805/0xcf0 > drm_close_helper.isra.0+0x183/0x1f0 > drm_release+0x1ab/0x360 > __fput+0x402/0xb50 > task_work_run+0x16b/0x260 > exit_to_user_mode_loop+0xf9/0x130 > do_syscall_64+0x424/0xfa0 > entry_SYSCALL_64_after_hwframe+0x77/0x7f > </TASK> >
