---

yaml
---
r: 157283
b: refs/heads/master
c: 752015d
h: refs/heads/master
i:
  157281: 4041410
  157279: a754a67
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 74fca6a42863ffacaf7ba6f1936a9f228950f657
+refs/heads/master: 752015d1b0683a8c623ebfe4c62893413e9b30d3

trunk/fs/binfmt_elf.c

@@ -501,22 +501,22 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 		}
 	}
 
-	/*
-	 * Now fill out the bss section.  First pad the last page up
-	 * to the page boundary, and then perform a mmap to make sure
-	 * that there are zero-mapped pages up to and including the 
-	 * last bss page.
-	 */
-	if (padzero(elf_bss)) {
-		error = -EFAULT;
-		goto out_close;
-	}
+	if (last_bss > elf_bss) {
+		/*
+		 * Now fill out the bss section.  First pad the last page up
+		 * to the page boundary, and then perform a mmap to make sure
+		 * that there are zero-mapped pages up to and including the
+		 * last bss page.
+		 */
+		if (padzero(elf_bss)) {
+			error = -EFAULT;
+			goto out_close;
+		}
 
-	/* What we have mapped so far */
-	elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);
+		/* What we have mapped so far */
+		elf_bss = ELF_PAGESTART(elf_bss + ELF_MIN_ALIGN - 1);
 
-	/* Map the last of the bss segment */
-	if (last_bss > elf_bss) {
+		/* Map the last of the bss segment */
 		down_write(&current->mm->mmap_sem);
 		error = do_brk(elf_bss, last_bss - elf_bss);
 		up_write(&current->mm->mmap_sem);