syzbot

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fud->pq.processing
WARNING: fs/fuse/dev.c:482 at fuse_dev_install_with_pq+0x23b/0x270 fs/fuse/dev.c:482, CPU#0: syz.0.115/5955
Modules linked in:
CPU: 0 UID: 0 PID: 5955 Comm: syz.0.115 Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:fuse_dev_install_with_pq+0x23b/0x270 fs/fuse/dev.c:482
Code: 85 6d fe ff ff e8 55 84 84 fe 4d 85 ed 0f 94 c0 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 36 84 84 fe 90 <0f> 0b 90 41 80 3c 2e 00 0f 85 8a fe ff ff e9 8d fe ff ff 44 89 f1
RSP: 0018:ffffc90004d27660 EFLAGS: 00010293
RAX: ffffffff83406a0a RBX: ffff88803d3ad000 RCX: ffff888022ad3d80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffff8880324be40f R09: 1ffff11006497c81
R10: dffffc0000000000 R11: ffffed1006497c82 R12: ffff88803d17a000
R13: ffff8880324be498 R14: 1ffff11006497c93 R15: ffff8880324be400
FS:  000055555afd3500(0000) GS:ffff888125a67000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd1c4e1ba40 CR3: 000000003fc58000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 fuse_dev_install fs/fuse/dev.c:496 [inline]
 fuse_dev_alloc_install+0x61/0x80 fs/fuse/dev.c:508
 cuse_channel_open+0x124/0x7b0 fs/fuse/cuse.c:524
 misc_open+0x2de/0x350 drivers/char/misc.c:163
 chrdev_open+0x4d0/0x5f0 fs/char_dev.c:411
 do_dentry_open+0x83d/0x13e0 fs/open.c:947
 vfs_open+0x3b/0x350 fs/open.c:1079
 do_open fs/namei.c:4699 [inline]
 path_openat+0x2e43/0x38a0 fs/namei.c:4858
 do_file_open+0x23e/0x4a0 fs/namei.c:4887
 do_sys_openat2+0x113/0x200 fs/open.c:1364
 do_sys_open fs/open.c:1370 [inline]
 __do_sys_openat fs/open.c:1386 [inline]
 __se_sys_openat fs/open.c:1381 [inline]
 __x64_sys_openat+0x138/0x170 fs/open.c:1381
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x15f/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd1c4e8c819
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:00007ffe4415cbd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fd1c5105fa0 RCX: 00007fd1c4e8c819
RDX: 0000000000000002 RSI: 0000200000000040 RDI: ffffffffffffff9c
RBP: 00007fd1c4f22c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd1c5105fac R14: 00007fd1c5105fa0 R15: 00007fd1c5105fa0
 </TASK>