[PATCH] mm/damon/sysfs-schemes: avoid Wformat-security warning on damon_sysfs_access_pattern_add_range_dir()

From: SeongJae Park
Date: Mon Mar 10 2025 - 12:53:22 EST


When -Wformat-security is given, compiler warns as a potential security
issue on damon_sysfs_access_pattern_add_range_dir() as below:

mm/damon/sysfs-schemes.c: In function ‘damon_sysfs_access_pattern_add_range_dir’:
mm/damon/sysfs-schemes.c:1503:25: warning: format not a string literal and no format arguments [-Wformat-security]
1503 | &access_pattern->kobj, name);
| ^

Fix it by using "%s" as the format and the name as the argument.

Fixes: 7e84b1f8212a ("mm/damon/sysfs: support DAMON-based Operation Schemes")
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
---
mm/damon/sysfs-schemes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c
index 985cfc750a90..5023f2b690d6 100644
--- a/mm/damon/sysfs-schemes.c
+++ b/mm/damon/sysfs-schemes.c
@@ -1471,7 +1471,7 @@ static int damon_sysfs_access_pattern_add_range_dir(
if (!range)
return -ENOMEM;
err = kobject_init_and_add(&range->kobj, &damon_sysfs_ul_range_ktype,
- &access_pattern->kobj, name);
+ &access_pattern->kobj, "%s", name);
if (err)
kobject_put(&range->kobj);
else

base-commit: 0cc6442f34b553e5718892b818d691b8fd0b5642
--
2.39.5