4.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Miklos Szeredi <mszeredi@xxxxxxxxxx> commit 641089c1549d8d3df0b047b5de7e9a111362cdce upstream. Make sure the copied up file hits the disk before renaming to the final destination. If this is not done then the copy-up may corrupt the data in the file in case of a crash. Signed-off-by: Miklos Szeredi <mszeredi@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- fs/overlayfs/copy_up.c | 2 ++ 1 file changed, 2 insertions(+) --- a/fs/overlayfs/copy_up.c +++ b/fs/overlayfs/copy_up.c @@ -171,6 +171,8 @@ static int ovl_copy_up_data(struct path len -= bytes; } + if (!error) + error = vfs_fsync(new_file, 0); fput(new_file); out_fput: fput(old_file); -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html