login: panic: ufs_rename: lost dir entry
Stopped at      db_enter+0x18:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*383119  54313      0      0x1000  0x4080000    0  syz-executor.6
db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff8257eb08) at panic+0x161 sys/kern/subr_prf.c:202
ufs_rename(ffff800029999498) at ufs_rename+0x1649 sys/ufs/ufs/ufs_vnops.c:909
VOP_RENAME(fffffd807efd26c0,fffffd80679db520,ffff800029999668,fffffd80679db448,fffffd80679db5f8,ffff8000299995b8) at VOP_RENAME+0xf0 sys/kern/vfs_vops.c:370
dorenameat(ffff8000217ad268,3,20000180,6,200001c0) at dorenameat+0x29c sys/kern/vfs_syscalls.c:3037
syscall(ffff800029999800) at syscall+0x447 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x13ccd404f30, count: 8
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