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[v4,08/11] tsacct: Replace strncpy() with __get_task_comm()

Message ID 20240729023719.1933-9-laoar.shao@gmail.com (mailing list archive)
State Handled Elsewhere
Delegated to: Paul Moore
Headers show
Series Improve the copy of task comm | expand

Commit Message

Yafang Shao July 29, 2024, 2:37 a.m. UTC 
Using __get_task_comm() to read the task comm ensures that the name is
always NUL-terminated, regardless of the source string. This approach also
facilitates future extensions to the task comm.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
---
 kernel/tsacct.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index 4252f0645b9e..6b094d5d9135 100644
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -76,7 +76,7 @@  void bacct_add_tsk(struct user_namespace *user_ns,
 	stats->ac_minflt = tsk->min_flt;
 	stats->ac_majflt = tsk->maj_flt;
 
-	strncpy(stats->ac_comm, tsk->comm, sizeof(stats->ac_comm));
+	__get_task_comm(stats->ac_comm, sizeof(stats->ac_comm), tsk);
 }