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.TH "KMEM_PTR_VALIDATE" "9" "09 October 2005" "" ""

.SH NAME
kmem_ptr_validate \- check if an untrusted pointer might
.SH SYNOPSIS
"SYNOPSIS"
.sp
\fB
.sp
int fastcall kmem_ptr_validate  (kmem_cache_t * \fIcachep\fB, void * \fIptr\fB);
\fR
.SH "ARGUMENTS"
.TP
\fB\fIcachep\fB\fR
the cache we're checking against
.TP
\fB\fIptr\fB\fR
pointer to validate
.SH "DESCRIPTION"
.PP
be a slab entry.
.SH "THIS VERIFIES THAT THE UNTRUSTED POINTER LOOKS SANE"
.PP
it is _not_ a guarantee that the pointer is actually
part of the slab cache in question, but it at least
validates that the pointer can be dereferenced and
looks half-way sane.
.PP
Currently only used for dentry validation.