Displaying 1 result from an estimated 1 matches for "snapshot_entry_matches_calls".
2005 Jun 30
0
[PATCH][10/10] Use copy_from_user when accessing guest_pt
...@@ -1906,7 +1906,7 @@
unsigned long gpfn, unsigned index)
{
unsigned long smfn = __shadow_status(d, gpfn, PGT_snapshot);
- l1_pgentry_t *snapshot; // could be L1s or L2s or ...
+ l1_pgentry_t *snapshot, gpte; // could be L1s or L2s or ...
int entries_match;
perfc_incrc(snapshot_entry_matches_calls);
@@ -1916,10 +1916,14 @@
snapshot = map_domain_page(smfn);
+ if (__copy_from_user(&gpte, &guest_pt[index],
+ sizeof(gpte)))
+ return 0;
+
// This could probably be smarter, but this is sufficent for
// our current needs.
//
- ent...