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| author | Xiu Jianfeng <xiujianfeng@huawei.com> | 2022-11-12 12:27:19 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-12-31 15:32:12 +0300 |
| commit | d2845542a95336d4238e19e2a645f92ca16c472e (patch) | |
| tree | 82aeac6c76cb284e85b85a145eb2da88d5b13350 | |
| parent | c591c48842f08d30ec6b8416757831985ed9a315 (diff) | |
| download | linux-d2845542a95336d4238e19e2a645f92ca16c472e.tar.xz | |
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>
| -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 c25079faa208..195ac18f0927 100644 --- a/security/integrity/ima/ima_template.c +++ b/security/integrity/ima/ima_template.c @@ -245,11 +245,11 @@ 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; } |