panic: ffs_blkfree: bad size
Stopped at      db_enter+0x25:  addq    $0x8,%rsp
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*148205  55718      0         0x2          0    0  syz-executor
db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437
panic(ffffffff83315a99) at panic+0x1cf sys/kern/subr_prf.c:198
ffs_blkfree(fffffd806e47eab0,c48c45a3,4000) at ffs_blkfree+0xd33 sys/ufs/ffs/ffs_alloc.c:1285
ffs_truncate(fffffd806e47eab0,0,0,ffffffffffffffff) at ffs_truncate+0x116b sys/ufs/ffs/ffs_inode.c:304
ufs_inactive(ffff80003c996f38) at ufs_inactive+0x203 sys/ufs/ufs/ufs_inode.c:84
VOP_INACTIVE(fffffd8063954720,ffff800038944548) at VOP_INACTIVE+0xfe sys/kern/vfs_vops.c:495
vput(fffffd8063954720) at vput+0xdc sys/kern/vfs_subr.c:797
VOP_REMOVE(fffffd805f69e208,fffffd8063954720,ffff80003c9970b8) at VOP_REMOVE+0x19d sys/kern/vfs_vops.c:336
dounlinkat(ffff800038944548,ffffff9c,7b88c1db8df0,0) at dounlinkat+0x177 sys/kern/vfs_syscalls.c:1887
syscall(ffff80003c997230) at syscall+0x97e sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7b88c1db92a0, count: 4
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