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Diffstat (limited to 'arch')
-rw-r--r--arch/x86_64/ia32/syscall32.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/x86_64/ia32/syscall32.c b/arch/x86_64/ia32/syscall32.c
index 01d8db1a1c0..816a3b89f13 100644
--- a/arch/x86_64/ia32/syscall32.c
+++ b/arch/x86_64/ia32/syscall32.c
@@ -57,6 +57,7 @@ int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
int npages = (VSYSCALL32_END - VSYSCALL32_BASE) >> PAGE_SHIFT;
struct vm_area_struct *vma;
struct mm_struct *mm = current->mm;
+ int ret;
vma = kmem_cache_alloc(vm_area_cachep, SLAB_KERNEL);
if (!vma)
@@ -78,7 +79,11 @@ int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
vma->vm_mm = mm;
down_write(&mm->mmap_sem);
- insert_vm_struct(mm, vma);
+ if ((ret = insert_vm_struct(mm, vma))) {
+ up_write(&mm->mmap_sem);
+ kmem_cache_free(vm_area_cachep, vma);
+ return ret;
+ }
mm->total_vm += npages;
up_write(&mm->mmap_sem);
return 0;