From: Yafang Shao <laoar.shao@gmail.com>
To: torvalds@linux-foundation.org
Cc: ebiederm@xmission.com, alexei.starovoitov@gmail.com,
rostedt@goodmis.org, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org,
linux-trace-kernel@vger.kernel.org, audit@vger.kernel.org,
linux-security-module@vger.kernel.org, selinux@vger.kernel.org,
bpf@vger.kernel.org, netdev@vger.kernel.org,
dri-devel@lists.freedesktop.org,
Yafang Shao <laoar.shao@gmail.com>
Subject: [PATCH v2 07/10] tsacct: Replace strncpy() with __get_task_comm()
Date: Thu, 13 Jun 2024 10:30:41 +0800 [thread overview]
Message-ID: <20240613023044.45873-8-laoar.shao@gmail.com> (raw)
In-Reply-To: <20240613023044.45873-1-laoar.shao@gmail.com>
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(-)
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);
}
--
2.39.1
next prev parent reply other threads:[~2024-06-13 2:31 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-13 2:30 [PATCH v2 00/10] Improve the copy of task comm Yafang Shao
2024-06-13 2:30 ` [PATCH v2 01/10] fs/exec: Drop task_lock() inside __get_task_comm() Yafang Shao
2024-06-13 2:30 ` [PATCH v2 02/10] auditsc: Replace memcpy() with __get_task_comm() Yafang Shao
2024-06-13 2:30 ` [PATCH v2 03/10] security: " Yafang Shao
2024-06-13 2:30 ` [PATCH v2 04/10] bpftool: Ensure task comm is always NUL-terminated Yafang Shao
2024-06-13 2:30 ` [PATCH v2 05/10] mm/util: Fix possible race condition in kstrdup() Yafang Shao
2024-06-13 21:14 ` Andrew Morton
2024-06-13 22:17 ` Linus Torvalds
2024-06-14 2:41 ` Yafang Shao
2024-06-14 2:33 ` Yafang Shao
2024-06-13 2:30 ` [PATCH v2 06/10] mm/kmemleak: Replace strncpy() with __get_task_comm() Yafang Shao
2024-06-13 8:37 ` Catalin Marinas
2024-06-13 12:10 ` Yafang Shao
2024-06-14 10:57 ` Catalin Marinas
2024-06-14 11:45 ` Yafang Shao
2024-06-13 2:30 ` Yafang Shao [this message]
2024-06-13 2:30 ` [PATCH v2 08/10] tracing: " Yafang Shao
2024-06-13 2:30 ` [PATCH v2 09/10] net: Replace strcpy() " Yafang Shao
2024-06-13 2:30 ` [PATCH v2 10/10] drm: " Yafang Shao
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