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| author |   Darrick J. Wong <darrick.wong@oracle.com> | 2020-08-26 14:12:18 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-08-27 08:01:31 -0700 |
| commit | 125eac243806e021f33a1fdea3687eccbb9f7636 (patch) | |
| tree | 57c36ccb64c1d54f6ef9b8bad0621287dd7e0ebf /fs/xfs/libxfs/xfs_attr_leaf.c | |
| parent | xfs: fix boundary test in xfs_attr_shortform_verify (diff) | |
| download | linux-dev-125eac243806e021f33a1fdea3687eccbb9f7636.tar.xz linux-dev-125eac243806e021f33a1fdea3687eccbb9f7636.zip | |
xfs: initialize the shortform attr header padding entry
Don't leak kernel memory contents into the shortform attr fork.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_attr_leaf.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_attr_leaf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index 383b08f2ac61..305d4bc07337 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -653,8 +653,8 @@ xfs_attr_shortform_create( ASSERT(ifp->if_flags & XFS_IFINLINE); } xfs_idata_realloc(dp, sizeof(*hdr), XFS_ATTR_FORK); - hdr = (xfs_attr_sf_hdr_t *)ifp->if_u1.if_data; - hdr->count = 0; + hdr = (struct xfs_attr_sf_hdr *)ifp->if_u1.if_data; + memset(hdr, 0, sizeof(*hdr)); hdr->totsize = cpu_to_be16(sizeof(*hdr)); xfs_trans_log_inode(args->trans, dp, XFS_ILOG_CORE | XFS_ILOG_ADATA); } |