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Subject[PATCH] ima: store address of template_fmt_copy in a pointer before calling strsep
Date
This patch stores the address of the 'template_fmt_copy' variable in a new
variable, called 'template_fmt_ptr', so that the latter is passed as an
argument of strsep() instead of the former. This modification is needed
in order to correctly free the memory area referenced by
'template_fmt_copy' (strsep() modifies the pointer of the passed string).

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
---
security/integrity/ima/ima_template.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index 913e192..635695f 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -110,7 +110,7 @@ static int template_desc_init_fields(const char *template_fmt,
struct ima_template_field ***fields,
int *num_fields)
{
- char *c, *template_fmt_copy;
+ char *c, *template_fmt_copy, *template_fmt_ptr;
int template_num_fields = template_fmt_size(template_fmt);
int i, result = 0;

@@ -127,7 +127,9 @@ static int template_desc_init_fields(const char *template_fmt,
result = -ENOMEM;
goto out;
}
- for (i = 0; (c = strsep(&template_fmt_copy, "|")) != NULL &&
+
+ template_fmt_ptr = template_fmt_copy;
+ for (i = 0; (c = strsep(&template_fmt_ptr, "|")) != NULL &&
i < template_num_fields; i++) {
struct ima_template_field *f = lookup_template_field(c);

--
1.8.1.4
[unhandled content-type:application/x-pkcs7-signature]
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