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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-10-12 14:51:13 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-10-12 14:51:13 -0700 |
commit | 8ff0b97cf2c56247e246167b4ab602469354e917 (patch) | |
tree | c77d96c5a15ff47eb08e0c825ce644652b155aed /fs/xfs/xfs_acl.c | |
parent | 2aab9c3ca47dd4fcc19a8743c6e4d348640dd3fa (diff) | |
parent | 93e8befc17f6d6ea92b0aee3741ceac8bca4590f (diff) | |
download | linux-8ff0b97cf2c56247e246167b4ab602469354e917.tar.bz2 |
Merge tag 'xfs-4.14-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
- Fix a stale kernel memory exposure when logging inodes.
- Fix some build problems with CONFIG_XFS_RT=n
- Don't change inode mode if the acl write fails, leaving the file
totally inaccessible.
- Fix a dangling pointer problem when removing an attr fork under
memory pressure.
- Don't crash while trying to invalidate a null buffer associated with
a corrupt metadata pointer.
* tag 'xfs-4.14-fixes-5' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: handle error if xfs_btree_get_bufs fails
xfs: reinit btree pointer on attr tree inactivation walk
xfs: Fix bool initialization/comparison
xfs: don't change inode mode if ACL update fails
xfs: move more RT specific code under CONFIG_XFS_RT
xfs: Don't log uninitialised fields in inode structures
Diffstat (limited to 'fs/xfs/xfs_acl.c')
-rw-r--r-- | fs/xfs/xfs_acl.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c index 7034e17535de..3354140de07e 100644 --- a/fs/xfs/xfs_acl.c +++ b/fs/xfs/xfs_acl.c @@ -247,6 +247,8 @@ xfs_set_mode(struct inode *inode, umode_t mode) int xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type) { + umode_t mode; + bool set_mode = false; int error = 0; if (!acl) @@ -257,16 +259,24 @@ xfs_set_acl(struct inode *inode, struct posix_acl *acl, int type) return error; if (type == ACL_TYPE_ACCESS) { - umode_t mode; - error = posix_acl_update_mode(inode, &mode, &acl); if (error) return error; - error = xfs_set_mode(inode, mode); - if (error) - return error; + set_mode = true; } set_acl: - return __xfs_set_acl(inode, acl, type); + error = __xfs_set_acl(inode, acl, type); + if (error) + return error; + + /* + * We set the mode after successfully updating the ACL xattr because the + * xattr update can fail at ENOSPC and we don't want to change the mode + * if the ACL update hasn't been applied. + */ + if (set_mode) + error = xfs_set_mode(inode, mode); + + return error; } |