From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 083461B21BD; Thu, 25 Sep 2025 23:11:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758841872; cv=none; b=bUR3Z4Rq2fGfWNzVGGjbPZ/plmiAif92HNlJh/g8VBlJ9qAY3fowHyZ7/KWkVJDkOQNCCIYQUz6aErE43azGX1+WCeF9d1Hc9s+snD4CaFOinmyLrk9gPdcFvKtz7UAahuAndSgEaotpoSJMgW1pPPGpoYp1rgvUQmkJxG7eSa8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758841872; c=relaxed/simple; bh=1TNCOGMjqP5zEQTeoVGZzW0z8bRd6kZXSZJyjGhIS9Y=; h=Date:To:From:Subject:Message-Id; b=AgJjxdMP8mIfJGL2XQN9CKQ4ofcLkYDEAVxums43d1l1+Y2Icrt8GZJOykdyBPLCzdMeZfgwg7Q4Ju2AT/JspHXrGUARjwmmrwYW0sfMO0dIcfx47Cut7+hW1cTKglgBLNjiyT2GuKtb/F/NPedA9YsY53xil8pGbwyOL7SPBzQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=zi5meFwa; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="zi5meFwa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 84658C4CEF0; Thu, 25 Sep 2025 23:11:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1758841871; bh=1TNCOGMjqP5zEQTeoVGZzW0z8bRd6kZXSZJyjGhIS9Y=; h=Date:To:From:Subject:From; b=zi5meFwaRskp/UyD08RnNR5XRjBYWUAPsrkVcAKx87Hbc4S93W6Vb46nqGMyhEywC TILeCYm0h8W66QGsKa+e4BDU7PYkMSkPwyECO+U5QYJjNFOqWdPSJr1oGIlyypCNWo cmC8yUJXlX6nKMDhTwni5fN503GvTfeEqKbgs29E= Date: Thu, 25 Sep 2025 16:11:10 -0700 To: mm-commits@vger.kernel.org,stable@vger.kernel.org,sj@kernel.org,akinobu.mita@gmail.com,akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-hotfixes-stable] mm-damon-sysfs-do-not-ignore-callbacks-return-value-in-damon_sysfs_damon_call.patch removed from -mm tree Message-Id: <20250925231111.84658C4CEF0@smtp.kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: The quilt patch titled Subject: mm/damon/sysfs: do not ignore callback's return value in damon_sysfs_damon_call() has been removed from the -mm tree. Its filename was mm-damon-sysfs-do-not-ignore-callbacks-return-value-in-damon_sysfs_damon_call.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Akinobu Mita Subject: mm/damon/sysfs: do not ignore callback's return value in damon_sysfs_damon_call() Date: Sat, 20 Sep 2025 22:25:46 +0900 The callback return value is ignored in damon_sysfs_damon_call(), which means that it is not possible to detect invalid user input when writing commands such as 'commit' to /sys/kernel/mm/damon/admin/kdamonds//state. Fix it. Link: https://lkml.kernel.org/r/20250920132546.5822-1-akinobu.mita@gmail.com Fixes: f64539dcdb87 ("mm/damon/sysfs: use damon_call() for update_schemes_stats") Signed-off-by: Akinobu Mita Reviewed-by: SeongJae Park Cc: [6.14+] Signed-off-by: Andrew Morton --- mm/damon/sysfs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) --- a/mm/damon/sysfs.c~mm-damon-sysfs-do-not-ignore-callbacks-return-value-in-damon_sysfs_damon_call +++ a/mm/damon/sysfs.c @@ -1592,12 +1592,14 @@ static int damon_sysfs_damon_call(int (* struct damon_sysfs_kdamond *kdamond) { struct damon_call_control call_control = {}; + int err; if (!kdamond->damon_ctx) return -EINVAL; call_control.fn = fn; call_control.data = kdamond; - return damon_call(kdamond->damon_ctx, &call_control); + err = damon_call(kdamond->damon_ctx, &call_control); + return err ? err : call_control.return_code; } struct damon_sysfs_schemes_walk_data { _ Patches currently in -mm which might be from akinobu.mita@gmail.com are