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authorYu Zhe <yuzhe@nfschina.com>2022-09-27 15:02:47 +0800
committerDan Williams <dan.j.williams@intel.com>2022-11-03 11:20:46 -0700
commit4f1aa35f1fb7d51b125487c835982af792697ecb (patch)
tree2c15f9ba2523e709f8bdfc6325bfb7aa81abf5be /drivers/cxl
parent71ee71d7adcba648077997a29a91158d20c40b09 (diff)
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: Yu Zhe <yuzhe@nfschina.com> Link: https://lore.kernel.org/r/20220927070247.23148-1-yuzhe@nfschina.com Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/cxl')
-rw-r--r--drivers/cxl/pmem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/cxl/pmem.c b/drivers/cxl/pmem.c
index 115a7b79f343..0bac05d804bc 100644
--- a/drivers/cxl/pmem.c
+++ b/drivers/cxl/pmem.c
@@ -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 =