Commit 4f1aa35f authored by Yu Zhe's avatar Yu Zhe Committed by Dan Williams
Browse files

cxl/pmem: Use size_add() against integer overflow 



"struct_size() + n" may cause a integer overflow,
use size_add() to handle it.

Signed-off-by: default avatarYu Zhe <yuzhe@nfschina.com>
Link: https://lore.kernel.org/r/20220927070247.23148-1-yuzhe@nfschina.com


Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent 71ee71d7

drivers/cxl/pmem.c

+1 −1
Original line number Diff line number Diff line
@@ -148,7 +148,7 @@ static int cxl_pmem_set_config_data(struct cxl_dev_state *cxlds, 
		return -EINVAL;



	/* 4-byte status follows the input data in the payload */

	if (struct_size(cmd, in_buf, cmd->in_length) + 4 > buf_len)

	if (size_add(struct_size(cmd, in_buf, cmd->in_length), 4) > buf_len)

		return -EINVAL;



	set_lsa =