syzbot

------------[ cut here ]------------
WARNING: CPU: 0 PID: 6732 at drivers/gpu/drm/drm_prime.c:326 drm_gem_prime_fd_to_handle+0x4c5/0x550 drivers/gpu/drm/drm_prime.c:326
Modules linked in:
CPU: 0 PID: 6732 Comm: syz-executor226 Not tainted 6.9.0-rc5-syzkaller-00042-ge88c4cfcb7b8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:drm_gem_prime_fd_to_handle+0x4c5/0x550 drivers/gpu/drm/drm_prime.c:326
Code: 00 00 48 89 df e8 4b 3d 69 ff e9 e5 fd ff ff e8 71 b0 77 fc 4c 89 ff 41 89 dc e8 d6 6f c7 05 e9 b4 fe ff ff e8 5c b0 77 fc 90 <0f> 0b 90 e9 43 fd ff ff e8 5e 83 d3 fc e9 0f fc ff ff e8 54 83 d3
RSP: 0018:ffffc90009b37c30 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88801c343000 RCX: ffffffff8517509e
RDX: ffff88802ad89e00 RSI: ffffffff851753a4 RDI: ffff88801c343128
RBP: ffff88802334d400 R08: 0000000000000007 R09: fffffffffffff000
R10: ffff88801c343000 R11: 0000000000000001 R12: ffff88802334f800
R13: ffff88802ad6e000 R14: ffffc90009b37df8 R15: ffff88801f5d0c10
FS:  00005555566fd380(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefbbdd7100 CR3: 00000000299a2000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 drm_prime_fd_to_handle_ioctl+0xd6/0x110 drivers/gpu/drm/drm_prime.c:375
 drm_ioctl_kernel+0x1ef/0x3e0 drivers/gpu/drm/drm_ioctl.c:744
 drm_ioctl+0x5dc/0xc10 drivers/gpu/drm/drm_ioctl.c:841
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:904 [inline]
 __se_sys_ioctl fs/ioctl.c:890 [inline]
 __x64_sys_ioctl+0x196/0x220 fs/ioctl.c:890
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcf/0x260 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fefbbd5fee9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffed6193b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fefbbd5fee9
RDX: 0000000020000180 RSI: 00000000c00c642e RDI: 0000000000000004
RBP: 0000000000000000 R08: 00000000000000a0 R09: 00000000000000a0
R10: 00000000000000a0 R11: 0000000000000246 R12: 000000000002102e
R13: 00007ffed6193b9c R14: 00007ffed6193bb0 R15: 00007ffed6193ba0
 </TASK>