From: Xiu Jianfeng xiujianfeng@huawei.com
[ Upstream commit 25369175ce84813dd99d6604e710dc2491f68523 ]
The input parameter @fields is type of struct ima_template_field ***, so when allocates array memory for @fields, the size of element should be sizeof(**field) instead of sizeof(*field).
Actually the original code would not cause any runtime error, but it's better to make it logically right.
Fixes: adf53a778a0a ("ima: new templates management mechanism") Signed-off-by: Xiu Jianfeng xiujianfeng@huawei.com Reviewed-by: Roberto Sassu roberto.sassu@huawei.com Signed-off-by: Mimi Zohar zohar@linux.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- security/integrity/ima/ima_template.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c index 4dfdccce497b..13567e555130 100644 --- a/security/integrity/ima/ima_template.c +++ b/security/integrity/ima/ima_template.c @@ -196,11 +196,11 @@ static int template_desc_init_fields(const char *template_fmt, }
if (fields && num_fields) { - *fields = kmalloc_array(i, sizeof(*fields), GFP_KERNEL); + *fields = kmalloc_array(i, sizeof(**fields), GFP_KERNEL); if (*fields == NULL) return -ENOMEM;
- memcpy(*fields, found_fields, i * sizeof(*fields)); + memcpy(*fields, found_fields, i * sizeof(**fields)); *num_fields = i; }