From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793121503; b=VZwxAcDD5i91/V8oMX32gaSgjnkYECKz3eqSjoCE1+F3lmWBGIfS/3ZciDgBNGdKq5VU GC0KiWYxrfCXzed11BMfVlhRdw8dF5MH7ASRTrKm2IYB7J86JfF3tNIGMRJRntHwOIKlY GFRmrfkWiun0aDAVVWVizfLQ/bZO2kbNA6sN5k3DRfLLgstEJlGEoaozo2rWd/8KA4Kju y3RRt8hts60L7Qf79woZTjyyhCQo1D5o/cAXv4DM2sadczISpeioMVRxPcWPcqpUV16Tu +N+hRJmgHNquUYa6mvPptxkCP8cjf3h4Cg0JFw2/13zbbfV27q+dx5jjIMaMO+argpA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793121503; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Lines:X-Developer-Signature:X-Developer-Key: Content-Transfer-Encoding; bh=Jpqw1dZFFdRJ3YcOkY7F7UIGXi7r1qXZAzE2/kbVmEI=; b=V7q/JQ9PmxIlvZQPDtKqd9YHq9pt2xNUdENuCqQdcy+bFfMEDizlTwf0zf+LdGqOIpAD kYsYN0a4ezV0ZA1pHeRnxNfqiZr4qG7qpMKwHbXX7GITUhA5BcIUerE1Dg9ee+EuvX4i4 x39Izx0BMQ4E0f9zQ1JUrc4yBnGUmIt6PSFyi55G5ZRDwM+HfvWaam5JE8A+yq5NqDQdX ugD8sZsdXP+0WJcD+ViqdeNXZtvXl4bwXPHzsDXfjHdFyH93NKgWVGzCAZ62ui81PS6lr BQXFlMqt9RyQgilTS9157ZbLW9elIr26EDvyFAhSC4cnmQbEJ9xqT05EQpXWjaupxiw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=jDcx6k1I; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D547F606A31D; Tue, 27 Oct 2026 17:18:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=jDcx6k1I Received: by smtp.kernel.org (Postfix) with ESMTPSA id DE7F41F01829; Tue, 27 Oct 2026 17:18:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793121502; bh=Jpqw1dZFFdRJ3YcOkY7F7UIGXi7r1qXZAzE2/kbVmEI=; h=From:To:Cc:Subject:Date; b=jDcx6k1IGZq0nDPQN04OMUEd+VaLE+BGJatcbGEK0V/pELFYJQOYS/ThgvoiNmHz9 leivEQ6+F66yKJxZAjKrBImYLiV39z1l9DKyVl2Vlsdhqj792P59LD+OrZkR/C6PaQ VQ4nlztfaXoXNVzhy+NF7uk8HOgn2ph5i1oglLTk= From: Greg Kroah-Hartman To: rafael@kernel.org, dakr@kernel.org, johan@kernel.org Cc: driver-core@lists.linux.dev, linux-kernel@vger.kernel.org, Josef Bacik , stable , Greg Kroah-Hartman Subject: [PATCH] driver core: Limit the messages on a refused uevent Date: Tue, 27 Oct 2026 18:18:19 +0100 Message-ID: <2026102718-conduit-glorious-a8dc@gregkh> X-Mailer: git-send-email 2.56.0 X-Mailing-List: driver-core@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1718; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=7WA86eHW8/XZY5jWKhBuR6+aFu6P/cEKcUjIYXwRAcs=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkP7tySP+zCnBUSwFB46EjWkor4tU37lq++47P2zqtXu /qkDzA/6ohlYRBkYpAVU2T5so3n6P6KQ4pehranYeawMoEMYeDiFICJOF1mmB+zQNz0+LkDAu6/ V6Xk6X77eveg/UWGWczsPe8cbPS3sIe9ejZVzldM4NsXNQA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Josef Bacik A write to a "uevent" file which is no valid action makes kobject_synth_uevent() print a warning and uevent_store() an error every time. This is generally considered a bad thing so rate limit these messages. Fixes: b0e37c0d8a6a ("net-sysfs: make sure objects belong to container's owner") Cc: stable Signed-off-by: Josef Bacik Signed-off-by: Greg Kroah-Hartman --- drivers/base/core.c | 4 +++- lib/kobject_uevent.c | 6 +++--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/base/core.c b/drivers/base/core.c index f21e225abd51..0e2eccd3e613 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -2881,7 +2881,9 @@ static ssize_t uevent_store(struct device *dev, const struct device_attribute *a rc = kobject_synth_uevent(&dev->kobj, buf, count); if (rc) { - dev_err(dev, "uevent: failed to send synthetic uevent: %d\n", rc); + dev_err_ratelimited(dev, + "uevent: failed to send synthetic uevent: %d\n", + rc); return rc; } diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c index 1480e2c27ed0..1d29378d4f55 100644 --- a/lib/kobject_uevent.c +++ b/lib/kobject_uevent.c @@ -223,9 +223,9 @@ int kobject_synth_uevent(struct kobject *kobj, const char *buf, size_t count) out: if (r) { devpath = kobject_get_path(kobj, GFP_KERNEL); - pr_warn("synth uevent: %s: %s\n", - devpath ?: "unknown device", - msg ?: "failed to send uevent"); + pr_warn_ratelimited("synth uevent: %s: %s\n", + devpath ?: "unknown device", + msg ?: "failed to send uevent"); kfree(devpath); } return r; -- 2.56.0