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=1793618163; b=e4CCnJLGot9wWXzJtEo9fYR+JkmgQ5WEcCeXVx0owk0uok2Vwxn3lJfWE9hZm87LgqvX JyiZ4NKOtI5f3rPc/Vj0JtDIjbLKYlXJDcnSc6uqrOiRqeBmACtBGITVRrCndUnzWLHoC QEJXFjYX2PVyh5JvWrsMLQS0bDWvsoD0kmkDHIynAq90tAmM5FXJXfb50ZbHwuoo3aYnK D6uHXtuOmT2ze5nwnF/g3e9l0PPkCXtjr9i6x6MCyUT6Cu0pbZFryIgFWyENRxJnIyor6 JLixUrRbNy7294iC7JAPIufKxyecll6fvw0Oa8DQzoP017lrIBTsT5PwWYzT2hMhRyg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793618163; h=Received:DKIM-Signature:Received:From:To:Cc:Subject:Date:Message-ID: X-Mailer:MIME-Version:Content-Transfer-Encoding; bh=TGJD+KdqvScwUJzjEuZa6O0XuHzgx+ke4p83StJ2m7Y=; b=uD/KBOQiR0YZxvcxpjCB/slzmWduQXjPkYO1OZoKhsz1ruBFQNANYlIXcmeX87vB8WFn yNLlpsALllQe5DRcYrroo5pAdY48iu7XDKuHM0oDQIx1AIHPOxVuGI9g6U4xk1N5TysX+ CxqN45Ag/q+IS0Dh9WpGesIk541zp0XstSyic0l53sCDYeHX2VQ48nkiG8M2sZps0VwNh Ea3tjYCCC67vrcshUnUBNoRbLFulf7wYDQb/qojHtg1bFu/BqDaCWrPDTDXqMbXFMKYpd /uOC/jqHJwjE/PpO6nByxCFS75Ql5Aa8VrWiiK8s6GcKUSdxb6HRcvsNfYBZiP78NYQ== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=kPcNMve+; 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 D3AFB60A2601; Mon, 2 Nov 2026 11:16:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=kPcNMve+ Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7AF791F00A1C; Mon, 2 Nov 2026 11:16:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793618162; bh=TGJD+KdqvScwUJzjEuZa6O0XuHzgx+ke4p83StJ2m7Y=; h=From:To:Cc:Subject:Date; b=kPcNMve+2R8gWrtYDRWNWVuUnqWacV295GQL5gFoG4SVK8erH55rUdqV/jsBZzeAL j0/7LlS2x62ePdG/qWatAxefsOXKTI28+sY4UOYuhhAeafdb1r2LEBbdVZOBVMlAmm ouIG8Rwhw2PaUW3yMncmQibCLvA9O9Hr73W6A94oDqe0xnaosPCzSR1eYyZv/TPLoY z3PulPlY8N6pwTdMIV7VfRRe+8GMm0lRPvljfOZgBLxhtvQKDE+M/AudC7kcWiIMVN quXIYapy8bb3ar9+u2qIg3wUzw2HtR8P3wYwKSKpNETcNjumPHOJmXaXbZe2/aw7sY dF8djxySOA34Q== Received: from johan by xi.lan with local (Exim 4.99.5) (envelope-from ) id 1xNq1A-00000005aDu-0rMJ; Mon, 02 Nov 2026 12:16:00 +0100 From: Johan Hovold To: Greg Kroah-Hartman , "Rafael J. Wysocki" , Danilo Krummrich , Johan Hovold Cc: Andy Shevchenko , Daniel Scally , Heikki Krogerus , Sakari Ailus , Bartosz Golaszewski , driver-core@lists.linux.dev, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] driver core: platform: fix sw node use-after-free on device release Date: Mon, 2 Nov 2026 12:14:18 +0100 Message-ID: <20261102111420.1330760-1-johan@kernel.org> X-Mailer: git-send-email 2.55.0 X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sashiko noted a new use-after-free issue when freeing platform device which has a software node as its primary fw node. Turns out that can cause trouble also when drivers or subsystems remove software nodes themselves. Johan Johan Hovold (2): driver core: platform: fix sw node use-after-free on device release software node: fix primary software node removal drivers/base/platform.c | 3 ++- drivers/base/swnode.c | 6 +++++- 2 files changed, 7 insertions(+), 2 deletions(-) -- 2.55.0