diff options
| author | Xiu Jianfeng <xiujianfeng@huawei.com> | 2022-11-12 17:27:19 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-01-18 11:30:11 +0100 |
| commit | 9ca76b0b46fdb02e46558db5464988b4e18375eb (patch) | |
| tree | ca6d55404bf6c18ed89cc95c97483507fc00d9f0 /security | |
| parent | 3ac888db0f67813d91373a9a61c840f815cd4ec9 (diff) | |
| download | linux-stable-9ca76b0b46fdb02e46558db5464988b4e18375eb.tar.gz linux-stable-9ca76b0b46fdb02e46558db5464988b4e18375eb.tar.bz2 linux-stable-9ca76b0b46fdb02e46558db5464988b4e18375eb.zip | |
ima: Fix misuse of dereference of pointer in template_desc_init_fields()
[ 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>
Diffstat (limited to 'security')
| -rw-r--r-- | security/integrity/ima/ima_template.c | 4 |
1 files 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; } |