diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 409ce6a7cca4ccd2e53f46693a5e4301bef87245..f85b2a282f130e2f0d4a5dc4d4bcfc61ed99b2f7 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -776,7 +776,7 @@ static int fuse_permission(struct inode *inode, int mask, struct nameidata *nd) if ((mask & MAY_EXEC) && !S_ISDIR(mode) && !(mode & S_IXUGO)) return -EACCES; - if (nd && (nd->flags & LOOKUP_ACCESS)) + if (nd && (nd->flags & (LOOKUP_ACCESS | LOOKUP_CHDIR))) return fuse_access(inode, mask); return 0; } diff --git a/fs/open.c b/fs/open.c index 303f06d2a7b92e8e001489cf2b1db17bdae6bd0c..1574d8fe4909de63baf93d6129ace8a2f990a94c 100644 --- a/fs/open.c +++ b/fs/open.c @@ -546,7 +546,8 @@ asmlinkage long sys_chdir(const char __user * filename) struct nameidata nd; int error; - error = __user_walk(filename, LOOKUP_FOLLOW|LOOKUP_DIRECTORY, &nd); + error = __user_walk(filename, + LOOKUP_FOLLOW|LOOKUP_DIRECTORY|LOOKUP_CHDIR, &nd); if (error) goto out; diff --git a/include/linux/namei.h b/include/linux/namei.h index 45511a5918d3edf6be65188c3b1c64ab650da1e8..c6470ba006680a3d97191f7baf62c73bd3b0c96b 100644 --- a/include/linux/namei.h +++ b/include/linux/namei.h @@ -54,6 +54,7 @@ enum {LAST_NORM, LAST_ROOT, LAST_DOT, LAST_DOTDOT, LAST_BIND}; #define LOOKUP_OPEN (0x0100) #define LOOKUP_CREATE (0x0200) #define LOOKUP_ACCESS (0x0400) +#define LOOKUP_CHDIR (0x0800) extern int FASTCALL(__user_walk(const char __user *, unsigned, struct nameidata *)); extern int FASTCALL(__user_walk_fd(int dfd, const char __user *, unsigned, struct nameidata *));