---

yaml
---
r: 42801
b: refs/heads/master
c: 841d5fb
h: refs/heads/master
i:
  42799: 017aeb3
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: fec1d0115240593b39898289e6e1413ea6e44a84
+refs/heads/master: 841d5fb7c75260f76ae682648b28a3dca724940d

trunk/fs/binfmt_elf.c

@@ -243,8 +243,9 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 	if (interp_aout) {
 		argv = sp + 2;
 		envp = argv + argc + 1;
-		__put_user((elf_addr_t)(unsigned long)argv, sp++);
-		__put_user((elf_addr_t)(unsigned long)envp, sp++);
+		if (__put_user((elf_addr_t)(unsigned long)argv, sp++) ||
+		    __put_user((elf_addr_t)(unsigned long)envp, sp++))
+			return -EFAULT;
 	} else {
 		argv = sp;
 		envp = argv + argc + 1;
@@ -254,7 +255,8 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 	p = current->mm->arg_end = current->mm->arg_start;
 	while (argc-- > 0) {
 		size_t len;
-		__put_user((elf_addr_t)p, argv++);
+		if (__put_user((elf_addr_t)p, argv++))
+			return -EFAULT;
 		len = strnlen_user((void __user *)p, PAGE_SIZE*MAX_ARG_PAGES);
 		if (!len || len > PAGE_SIZE*MAX_ARG_PAGES)
 			return 0;
@@ -265,7 +267,8 @@ create_elf_tables(struct linux_binprm *bprm, struct elfhdr *exec,
 	current->mm->arg_end = current->mm->env_start = p;
 	while (envc-- > 0) {
 		size_t len;
-		__put_user((elf_addr_t)p, envp++);
+		if (__put_user((elf_addr_t)p, envp++))
+			return -EFAULT;
 		len = strnlen_user((void __user *)p, PAGE_SIZE*MAX_ARG_PAGES);
 		if (!len || len > PAGE_SIZE*MAX_ARG_PAGES)
 			return 0;