From: unassigned <unassigned.56@gmail.com>
To: krzk@kernel.org
Cc: linux-kernel@vger.kernel.org, unassigned <unassigned.56@gmail.com>
Subject: [PATCH 2/2] w1: Use kfree_sensitive() to clear memory safely
Date: Sun, 19 Jul 2026 11:08:26 +0100 [thread overview]
Message-ID: <20260719100826.13888-1-unassigned.56@gmail.com> (raw)
---
drivers/w1/w1.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index 486f321eadc8..5afc7d6cb6cf 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -68,8 +68,7 @@ static void w1_master_release(struct device *dev)
struct w1_master *md = dev_to_w1_master(dev);
dev_dbg(dev, "%s: Releasing %s.\n", __func__, md->name);
- memset(md, 0, sizeof(struct w1_master) + sizeof(struct w1_bus_master));
- kfree(md);
+ kfree_sensitive(md);
}
static void w1_slave_release(struct device *dev)
@@ -793,10 +792,7 @@ int w1_unref_slave(struct w1_slave *sl)
w1_family_notify(BUS_NOTIFY_DEL_DEVICE, sl);
device_unregister(&sl->dev);
- #ifdef DEBUG
- memset(sl, 0, sizeof(*sl));
- #endif
- kfree(sl);
+ kfree_sensitive(sl);
}
atomic_dec(&dev->refcnt);
mutex_unlock(&dev->list_mutex);
--
2.47.3
next reply other threads:[~2026-07-19 10:08 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-19 10:08 unassigned [this message]
2026-07-19 14:14 ` Krzysztof Kozlowski
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