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-rw-r--r--fs/namei.c2
-rw-r--r--fs/open.c5
-rw-r--r--include/linux/namei.h1
3 files changed, 2 insertions, 6 deletions
diff --git a/fs/namei.c b/fs/namei.c
index ae0e56fdb742..6c76e1ee9c45 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -268,8 +268,6 @@ int permission(struct inode *inode, int mask, struct nameidata *nd)
268 if (nd) { 268 if (nd) {
269 if (nd->flags & LOOKUP_ACCESS) 269 if (nd->flags & LOOKUP_ACCESS)
270 extra |= MAY_ACCESS; 270 extra |= MAY_ACCESS;
271 if (nd->flags & LOOKUP_CHDIR)
272 extra |= MAY_CHDIR;
273 if (nd->flags & LOOKUP_OPEN) 271 if (nd->flags & LOOKUP_OPEN)
274 extra |= MAY_OPEN; 272 extra |= MAY_OPEN;
275 } 273 }
diff --git a/fs/open.c b/fs/open.c
index b2e4c93aed03..8e02d42bfe44 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -501,12 +501,11 @@ asmlinkage long sys_chdir(const char __user * filename)
501 struct nameidata nd; 501 struct nameidata nd;
502 int error; 502 int error;
503 503
504 error = __user_walk(filename, 504 error = __user_walk(filename, LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &nd);
505 LOOKUP_FOLLOW|LOOKUP_DIRECTORY|LOOKUP_CHDIR, &nd);
506 if (error) 505 if (error)
507 goto out; 506 goto out;
508 507
509 error = vfs_permission(&nd, MAY_EXEC); 508 error = vfs_permission(&nd, MAY_EXEC | MAY_CHDIR);
510 if (error) 509 if (error)
511 goto dput_and_out; 510 goto dput_and_out;
512 511
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 24d88e98a626..3cf62d26d493 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -55,7 +55,6 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND};
55#define LOOKUP_OPEN (0x0100) 55#define LOOKUP_OPEN (0x0100)
56#define LOOKUP_CREATE (0x0200) 56#define LOOKUP_CREATE (0x0200)
57#define LOOKUP_ACCESS (0x0400) 57#define LOOKUP_ACCESS (0x0400)
58#define LOOKUP_CHDIR (0x0800)
59 58
60extern int __user_walk(const char __user *, unsigned, struct nameidata *); 59extern int __user_walk(const char __user *, unsigned, struct nameidata *);
61extern int __user_walk_fd(int dfd, const char __user *, unsigned, struct nameidata *); 60extern int __user_walk_fd(int dfd, const char __user *, unsigned, struct nameidata *);