make sure emem_trunc doesnt point past end

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@24230 ec53bebd-3082-4978-b11e-865c3cabbd6b
2009-01-11 21:40:23 +00:00
parent 0e46e8afa2
commit 056fc8cf87
1 changed files with 2 additions and 0 deletions
--- a/lib/krb5/store_emem.c
+++ b/lib/krb5/store_emem.c
@@ -123,6 +123,8 @@ emem_trunc(krb5_storage *sp, off_t offset)
 	s->base = base;
    }
    s->len = offset;
+    if ((s->ptr - s->base) > offset)
+	s->ptr = s->base + offset;
    return 0;
 }