From: "Darrick J. Wong" <darrick.w...@oracle.com>
[ Upstream commit 125eac243806e021f33a1fdea3687eccbb9f7636 ]
Don't leak kernel memory contents into the shortform attr fork.
Signed-off-by: Darrick J. Wong <darrick.w...@oracle.com>
Reviewed-by: Eric Sandeen <sand...@redhat.com>
Reviewed-by: Dave Chinner <dchin...@redhat.com>
Reviewed-by: Christoph Hellwig <h...@lst.de>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
fs/xfs/libxfs/xfs_attr_leaf.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c
index 70da4113c2baf..7b9dd76403bfd 100644
--- a/fs/xfs/libxfs/xfs_attr_leaf.c
+++ b/fs/xfs/libxfs/xfs_attr_leaf.c
@@ -520,8 +520,8 @@ xfs_attr_shortform_create(xfs_da_args_t *args)
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);
}
--
2.25.1
