diff options
| -rw-r--r-- | arch/x86_64/ia32/syscall32.c | 7 |
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; |