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Commit 8ff0b97c authored by Linus Torvalds's avatar Linus Torvalds
Browse files

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
parents 2aab9c3c 93e8befc

fs/xfs/libxfs/xfs_alloc.c

+8 −0
Original line number Diff line number Diff line
@@ -1584,6 +1584,10 @@ xfs_alloc_ag_vextent_small( 


				bp = xfs_btree_get_bufs(args->mp, args->tp,

					args->agno, fbno, 0);

				if (!bp) {

					error = -EFSCORRUPTED;

					goto error0;

				}

				xfs_trans_binval(args->tp, bp);

			}

			args->len = 1;
@@ -2141,6 +2145,10 @@ xfs_alloc_fix_freelist( 
		if (error)

			goto out_agbp_relse;

		bp = xfs_btree_get_bufs(mp, tp, args->agno, bno, 0);

		if (!bp) {

			error = -EFSCORRUPTED;

			goto out_agbp_relse;

		}

		xfs_trans_binval(tp, bp);

	}

fs/xfs/libxfs/xfs_bmap.c

+2 −2
Original line number Diff line number Diff line
@@ -1477,14 +1477,14 @@ xfs_bmap_isaeof( 
	int			is_empty;

	int			error;



	bma->aeof = 0;

	bma->aeof = false;

	error = xfs_bmap_last_extent(NULL, bma->ip, whichfork, &rec,

				     &is_empty);

	if (error)

		return error;



	if (is_empty) {

		bma->aeof = 1;

		bma->aeof = true;

		return 0;

	}

fs/xfs/libxfs/xfs_ialloc.c

+2 −2
Original line number Diff line number Diff line
@@ -1962,7 +1962,7 @@ xfs_difree_inobt( 
	if (!(mp->m_flags & XFS_MOUNT_IKEEP) &&

	    rec.ir_free == XFS_INOBT_ALL_FREE &&

	    mp->m_sb.sb_inopblock <= XFS_INODES_PER_CHUNK) {

		xic->deleted = 1;

		xic->deleted = true;

		xic->first_ino = XFS_AGINO_TO_INO(mp, agno, rec.ir_startino);

		xic->alloc = xfs_inobt_irec_to_allocmask(&rec);
@@ -1989,7 +1989,7 @@ xfs_difree_inobt( 


		xfs_difree_inode_chunk(mp, agno, &rec, dfops);

	} else {

		xic->deleted = 0;

		xic->deleted = false;



		error = xfs_inobt_update(cur, &rec);

		if (error) {

fs/xfs/libxfs/xfs_log_format.h

+8 −19
Original line number Diff line number Diff line
@@ -270,6 +270,7 @@ typedef struct xfs_inode_log_format { 
	uint32_t		ilf_fields;	/* flags for fields logged */

	uint16_t		ilf_asize;	/* size of attr d/ext/root */

	uint16_t		ilf_dsize;	/* size of data/ext/root */

	uint32_t		ilf_pad;	/* pad for 64 bit boundary */

	uint64_t		ilf_ino;	/* inode number */

	union {

		uint32_t	ilfu_rdev;	/* rdev value for dev inode*/
@@ -280,29 +281,17 @@ typedef struct xfs_inode_log_format { 
	int32_t			ilf_boffset;	/* off of inode in buffer */

} xfs_inode_log_format_t;



typedef struct xfs_inode_log_format_32 {

	uint16_t		ilf_type;	/* inode log item type */

	uint16_t		ilf_size;	/* size of this item */

	uint32_t		ilf_fields;	/* flags for fields logged */

	uint16_t		ilf_asize;	/* size of attr d/ext/root */

	uint16_t		ilf_dsize;	/* size of data/ext/root */

	uint64_t		ilf_ino;	/* inode number */

	union {

		uint32_t	ilfu_rdev;	/* rdev value for dev inode*/

		uuid_t		ilfu_uuid;	/* mount point value */

	} ilf_u;

	int64_t			ilf_blkno;	/* blkno of inode buffer */

	int32_t			ilf_len;	/* len of inode buffer */

	int32_t			ilf_boffset;	/* off of inode in buffer */

} __attribute__((packed)) xfs_inode_log_format_32_t;



typedef struct xfs_inode_log_format_64 {

/*

 * Old 32 bit systems will log in this format without the 64 bit

 * alignment padding. Recovery will detect this and convert it to the

 * correct format.

 */

struct xfs_inode_log_format_32 {

	uint16_t		ilf_type;	/* inode log item type */

	uint16_t		ilf_size;	/* size of this item */

	uint32_t		ilf_fields;	/* flags for fields logged */

	uint16_t		ilf_asize;	/* size of attr d/ext/root */

	uint16_t		ilf_dsize;	/* size of data/ext/root */

	uint32_t		ilf_pad;	/* pad for 64 bit boundary */

	uint64_t		ilf_ino;	/* inode number */

	union {

		uint32_t	ilfu_rdev;	/* rdev value for dev inode*/
@@ -311,7 +300,7 @@ typedef struct xfs_inode_log_format_64 { 
	int64_t			ilf_blkno;	/* blkno of inode buffer */

	int32_t			ilf_len;	/* len of inode buffer */

	int32_t			ilf_boffset;	/* off of inode in buffer */

} xfs_inode_log_format_64_t;

} __attribute__((packed));





/*

fs/xfs/xfs_acl.c

+16 −6
Original line number Diff line number Diff line
@@ -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;

}