5 files changed, 12 insertions, 29 deletions

diff --git a/arch/ia64/ia32/binfmt_elf32.c b/arch/ia64/ia32/binfmt_elf32.c
index 31de70b7c67f..a7280d9f6c16 100644
--- a/arch/ia64/ia32/binfmt_elf32.c
+++ b/arch/ia64/ia32/binfmt_elf32.c
@@ -216,12 +216,6 @@ ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
         if (!mpnt)
                 return -ENOMEM;
 
-        if (security_vm_enough_memory((IA32_STACK_TOP - (PAGE_MASK & (unsigned long) bprm->p))
-                                      >> PAGE_SHIFT)) {
-                kmem_cache_free(vm_area_cachep, mpnt);
-                return -ENOMEM;
-        }
-
         memset(mpnt, 0, sizeof(*mpnt));
 
         down_write(&current->mm->mmap_sem);
diff --git a/arch/mips/kernel/sysirix.c b/arch/mips/kernel/sysirix.c
index 4de155699c4f..7ae4af476974 100644
--- a/arch/mips/kernel/sysirix.c
+++ b/arch/mips/kernel/sysirix.c
@@ -581,18 +581,13 @@ asmlinkage int irix_brk(unsigned long brk)
         }
 
         /*
-         * Check if we have enough memory..
+         * Ok, looks good - let it rip.
          */
-        if (security_vm_enough_memory((newbrk-oldbrk) >> PAGE_SHIFT)) {
+        if (do_brk(oldbrk, newbrk-oldbrk) != oldbrk) {
                 ret = -ENOMEM;
                 goto out;
         }
-
-        /*
-         * Ok, looks good - let it rip.
-         */
         mm->brk = brk;
-        do_brk(oldbrk, newbrk-oldbrk);
         ret = 0;
 
 out:
diff --git a/arch/ppc64/kernel/vdso.c b/arch/ppc64/kernel/vdso.c
index 4777676365fe..efa985f05aca 100644
--- a/arch/ppc64/kernel/vdso.c
+++ b/arch/ppc64/kernel/vdso.c
@@ -224,10 +224,7 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack)
         vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
         if (vma == NULL)
                 return -ENOMEM;
-        if (security_vm_enough_memory(vdso_pages)) {
-                kmem_cache_free(vm_area_cachep, vma);
-                return -ENOMEM;
-        }
+
         memset(vma, 0, sizeof(*vma));
 
         /*
@@ -237,8 +234,10 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack)
          */
         vdso_base = get_unmapped_area(NULL, vdso_base,
                                       vdso_pages << PAGE_SHIFT, 0, 0);
-        if (vdso_base & ~PAGE_MASK)
+        if (vdso_base & ~PAGE_MASK) {
+                kmem_cache_free(vm_area_cachep, vma);
                 return (int)vdso_base;
+        }
 
         current->thread.vdso_base = vdso_base;
 
@@ -266,7 +265,11 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int executable_stack)
         vma->vm_ops = &vdso_vmops;
 
         down_write(&mm->mmap_sem);
-        insert_vm_struct(mm, vma);
+        if (insert_vm_struct(mm, vma)) {
+                up_write(&mm->mmap_sem);
+                kmem_cache_free(vm_area_cachep, vma);
+                return -ENOMEM;
+        }
         mm->total_vm += (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
         up_write(&mm->mmap_sem);
 
diff --git a/arch/x86_64/ia32/ia32_binfmt.c b/arch/x86_64/ia32/ia32_binfmt.c
index c8131f342cfc..d9161e395978 100644
--- a/arch/x86_64/ia32/ia32_binfmt.c
+++ b/arch/x86_64/ia32/ia32_binfmt.c
@@ -353,11 +353,6 @@ int setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top, int exec
         mpnt = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
         if (!mpnt) 
                 return -ENOMEM; 
-        
-        if (security_vm_enough_memory((IA32_STACK_TOP - (PAGE_MASK & (unsigned long) bprm->p))>>PAGE_SHIFT)) {
-                kmem_cache_free(vm_area_cachep, mpnt);
-                return -ENOMEM;
-        }
 
         memset(mpnt, 0, sizeof(*mpnt));
 
diff --git a/arch/x86_64/ia32/syscall32.c b/arch/x86_64/ia32/syscall32.c
index adbc5f8089e9..3a01329473ab 100644
--- a/arch/x86_64/ia32/syscall32.c
+++ b/arch/x86_64/ia32/syscall32.c
@@ -52,17 +52,13 @@ int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
         vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
         if (!vma)
                 return -ENOMEM;
-        if (security_vm_enough_memory(npages)) {
-                kmem_cache_free(vm_area_cachep, vma);
-                return -ENOMEM;
-        }
 
         memset(vma, 0, sizeof(struct vm_area_struct));
         /* Could randomize here */
         vma->vm_start = VSYSCALL32_BASE;
         vma->vm_end = VSYSCALL32_END;
         /* MAYWRITE to allow gdb to COW and set breakpoints */
-        vma->vm_flags = VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYEXEC|VM_MAYEXEC|VM_MAYWRITE;
+        vma->vm_flags = VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYEXEC|VM_MAYWRITE;
         vma->vm_flags |= mm->def_flags;
         vma->vm_page_prot = protection_map[vma->vm_flags & 7];
         vma->vm_ops = &syscall32_vm_ops;