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-rw-r--r--fs/fat/file.c15
1 files changed, 6 insertions, 9 deletions
diff --git a/fs/fat/file.c b/fs/fat/file.c
index b61a98f5398a..e73f13a13792 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -257,7 +257,8 @@ int fat_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
257} 257}
258EXPORT_SYMBOL_GPL(fat_getattr); 258EXPORT_SYMBOL_GPL(fat_getattr);
259 259
260static int fat_check_mode(const struct msdos_sb_info *sbi, mode_t mode) 260static int fat_check_mode(const struct msdos_sb_info *sbi, struct inode *inode,
261 mode_t mode)
261{ 262{
262 mode_t mask, req = mode & ~S_IFMT; 263 mode_t mask, req = mode & ~S_IFMT;
263 264
@@ -271,7 +272,7 @@ static int fat_check_mode(const struct msdos_sb_info *sbi, mode_t mode)
271 * w bits, either all (subject to umask) or none must be present. 272 * w bits, either all (subject to umask) or none must be present.
272 */ 273 */
273 req &= ~mask; 274 req &= ~mask;
274 if ((req & (S_IRUGO | S_IXUGO)) != ((S_IRUGO | S_IXUGO) & ~mask)) 275 if ((req & (S_IRUGO | S_IXUGO)) != (inode->i_mode & (S_IRUGO|S_IXUGO)))
275 return -EPERM; 276 return -EPERM;
276 if ((req & S_IWUGO) && ((req & S_IWUGO) != (S_IWUGO & ~mask))) 277 if ((req & S_IWUGO) && ((req & S_IWUGO) != (S_IWUGO & ~mask)))
277 return -EPERM; 278 return -EPERM;
@@ -310,7 +311,9 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
310 if (((attr->ia_valid & ATTR_UID) && 311 if (((attr->ia_valid & ATTR_UID) &&
311 (attr->ia_uid != sbi->options.fs_uid)) || 312 (attr->ia_uid != sbi->options.fs_uid)) ||
312 ((attr->ia_valid & ATTR_GID) && 313 ((attr->ia_valid & ATTR_GID) &&
313 (attr->ia_gid != sbi->options.fs_gid))) 314 (attr->ia_gid != sbi->options.fs_gid)) ||
315 ((attr->ia_valid & ATTR_MODE) &&
316 fat_check_mode(sbi, inode, attr->ia_mode) < 0))
314 error = -EPERM; 317 error = -EPERM;
315 318
316 if (error) { 319 if (error) {
@@ -319,12 +322,6 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr)
319 goto out; 322 goto out;
320 } 323 }
321 324
322 if (attr->ia_valid & ATTR_MODE) {
323 error = fat_check_mode(sbi, attr->ia_mode);
324 if (error != 0 && !sbi->options.quiet)
325 goto out;
326 }
327
328 error = inode_setattr(inode, attr); 325 error = inode_setattr(inode, attr);
329 if (error) 326 if (error)
330 goto out; 327 goto out;