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-rw-r--r--fs/binfmt_elf.c2
-rw-r--r--include/linux/mm.h2
-rw-r--r--mm/madvise.c8
3 files changed, 8 insertions, 4 deletions
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 28a64e7..2b72d26 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1123,7 +1123,7 @@ static unsigned long vma_dump_size(struct vm_area_struct *vma,
if (always_dump_vma(vma))
goto whole;
- if (vma->vm_flags & VM_NODUMP)
+ if (vma->vm_flags & VM_DONTDUMP)
return 0;
/* Hugetlb memory check */
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 25ef49c..dc08d55 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -102,7 +102,7 @@ extern unsigned int kobjsize(const void *objp);
#define VM_HUGETLB 0x00400000 /* Huge TLB Page VM */
#define VM_NONLINEAR 0x00800000 /* Is non-linear (remap_file_pages) */
#define VM_ARCH_1 0x01000000 /* Architecture-specific flag */
-#define VM_NODUMP 0x04000000 /* Do not include in the core dump */
+#define VM_DONTDUMP 0x04000000 /* Do not include in the core dump */
#define VM_MIXEDMAP 0x10000000 /* Can contain "struct page" and pure PFN pages */
#define VM_HUGEPAGE 0x20000000 /* MADV_HUGEPAGE marked this vma */
diff --git a/mm/madvise.c b/mm/madvise.c
index 14d260f..03dfa5c 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -69,10 +69,14 @@ static long madvise_behavior(struct vm_area_struct * vma,
new_flags &= ~VM_DONTCOPY;
break;
case MADV_DONTDUMP:
- new_flags |= VM_NODUMP;
+ new_flags |= VM_DONTDUMP;
break;
case MADV_DODUMP:
- new_flags &= ~VM_NODUMP;
+ if (new_flags & VM_SPECIAL) {
+ error = -EINVAL;
+ goto out;
+ }
+ new_flags &= ~VM_DONTDUMP;
break;
case MADV_MERGEABLE:
case MADV_UNMERGEABLE:
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