panic: bad dir
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*  4902  46463      0           0  0x4000000    0K syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438
panic(ffffffff832e3d54) at panic+0x1e5 sys/kern/subr_prf.c:198
ufs_lookup() at ufs_lookup+0x1eda
VOP_LOOKUP(fffffd800b0396c0,ffff80002f44cde8,ffff80002f44ce18) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
vfs_lookup(ffff80002f44cdb8) at vfs_lookup+0x93a sys/kern/vfs_lookup.c:566
namei(ffff80002f44cdb8) at namei+0x7ca sys/kern/vfs_lookup.c:250
dorenameat(ffff80003c434fc0,ffffff9c,200000000440,ffffff9c,200000000040) at dorenameat+0x91 sys/kern/vfs_syscalls.c:2990
syscall(ffff80002f44cfb0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002f44cfb0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:748
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xf0c1b4ee9a0, count: 6
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