static void nfs4_layoutcommit_release(void *calldata)
{
	struct nfs4_layoutcommit_data *data = calldata;
	struct pnfs_layout_segment *lseg, *tmp;
	unsigned long *bitlock = &NFS_I(data->args.inode)->flags;

	pnfs_cleanup_layoutcommit(data);
	/* Matched by references in pnfs_set_layoutcommit */
	list_for_each_entry_safe(lseg, tmp, &data->lseg_list, pls_lc_list) {
		list_del_init(&lseg->pls_lc_list);
		if (test_and_clear_bit(NFS_LSEG_LAYOUTCOMMIT,
				       &lseg->pls_flags))
			pnfs_put_lseg(lseg);
	}

	clear_bit_unlock(NFS_INO_LAYOUTCOMMITTING, bitlock);
	smp_mb__after_clear_bit();
	wake_up_bit(bitlock, NFS_INO_LAYOUTCOMMITTING);

	put_rpccred(data->cred);
	kfree(data);
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.