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=1794048424; b=UH5pv9QaBMY6WhBvBbocQKLTwk5srF65mvFxm88aVY1ywdgq6xw5eLnC0J+8IDu02+YC SJQ2Sw5900O7SaqhyUXCNrvc57yMKek2oNKIcn6FDNaP+f8dbK0YM4Pud0UMmvBSeVcBA rWONlyw1NACG4FiwpgYGgJvmu1E/HSVUG4NxDuDUDZlxBF/MeAd3qqj0bN/RtPZCuVpUu gcWtW5Aurj7J+MWMiJWhRQZ8kz+vHTl9tXORR+l2B+qNQxiQQuZZY11+bSVaQahjWyfxo UrHKnIGCZRcQjEVlSthuZU3j81IzZDp1XYZt1V4+B58ug47ZpQMDrBaxM8J9T5H1Yhw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794048424; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Type:Content-Transfer-Encoding; bh=TLnNZwiGG1a5uB6e7dcZ/6Gauac5d0yfnebweAWPVk0=; b=UQW3AIiJ+UL2xq+WGKm1efaHSjXuTA8bPqMTKJNIAJEEfuQXISKEhvhA7N+lgTDYZ5C0 OLodB9w/IiLfghCTBA+iqQa5qIj1Xryxh/ZDpO8tHFwFvA2a1e29j/aC9xxJs+zgbDSVO /wlJGWfOJLzKFVHyEjhrN6BQXz9iySne4eim/Muk41RUA6Nmv7x0HjvrmYdxDguMS0+QD 5enD+xgHe51j7jDEzFVI93NtUDwKpfZDFQKqUc+2nmHbRTdsdxDqdXLE3IDwja+gSQq0P 8pV7MPTz0wusqVtt5CFwakwMjXTz3DAA8Kp9OEsQo7+CNnGV27sZHN6v8jrEVDTVOVA== 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=WzIOISVM; 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 E5C00606A334 for ; Sat, 7 Nov 2026 10:47:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=WzIOISVM Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1DD9C1F008A1; Sat, 7 Nov 2026 10:47:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794048423; bh=TLnNZwiGG1a5uB6e7dcZ/6Gauac5d0yfnebweAWPVk0=; h=From:To:Cc:Subject:Date; b=WzIOISVMBP35QQJPkQW3OTuuNzNCW/04/6lYkeNz3w9GfT1sXSlslcFJIwFUvmwOP 7yioMqYJrcK1PvoGehmFwTCXsWhB8pKpNgA8hYLU/fDP+tuC5UWLwB2RhRW7fonrQz 2J9+0whGV0SUDD6zGUYr8No1LMV7Azei5F8/bVQZhprnaD+Ls8ohSeZEhEhVMvvsmB 0eVfH/n5pzCQiX0/8NyI202PsYqnURBF+PGYav0v6dua2rLX60EhW+wQK1OOpaD1Fm 2Wp2ysa6MVe0b25fnka2joqBRbVO18c61E+b43h9+8WxxftzJfgCjYgXTim7sBgzoe G329SzhUqWAgw== From: Sasha Levin To: sj@kernel.org, akpm@linux-foundation.org, brendan.higgins@linux.dev, davidgow@davidgow.net, usamaarif642@gmail.com Cc: stable@vger.kernel.org Subject: FAILED: patch "[PATCH] mm/damon/core: disallow max < min damos filter range arguments commit" failed to apply to 6.1-stable tree Date: Sat, 7 Nov 2026 05:47:01 -0500 Message-ID: <20261107054701-failed-6.1-1bfb9384ae0e@kernel.org> X-Mailer: git-send-email 2.53.0 X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 1bfb9384ae0ed52d61eb601b655014b7815ff849 # git commit -s git send-email --to '' --in-reply-to '20261107054701-failed-6.1-1bfb9384ae0e@kernel.org' --subject-prefix 'PATCH 6.1.y' 'HEAD^..' Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From 1bfb9384ae0ed52d61eb601b655014b7815ff849 Mon Sep 17 00:00:00 2001 From: SJ Park Date: Mon, 14 Sep 2026 07:23:21 -0700 Subject: [PATCH] mm/damon/core: disallow max < min damos filter range arguments commit damos_commit_filter_arg() receives range arguments for a few types of DAMOS filters. It allows any range including max < min range. It is fine for the logic, but makes no sense to support it. Actually DAMON sysfs interface is doing the validation on its own. To avoid duplicated validations in multiple DAMON API callers, it would be better to do the validation in the core layer. Add a validation of the given range. Link: https://lore.kernel.org/20260914142327.92510-5-sj@kernel.org Signed-off-by: SJ Park Signed-off-by: Andrew Morton Cc: Brendan Higgins Cc: David Gow Cc: Usama Arif Cc: --- mm/damon/core.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/mm/damon/core.c b/mm/damon/core.c index 1932a50252079..5fdacb9dcee5f 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -1325,15 +1325,21 @@ static int damos_commit_filter_arg( dst->memcg_id = src->memcg_id; break; case DAMOS_FILTER_TYPE_ADDR: + if (src->addr_range.end < src->addr_range.start) + return -EINVAL; dst->addr_range = src->addr_range; break; case DAMOS_FILTER_TYPE_TARGET: dst->target_idx = src->target_idx; break; case DAMOS_FILTER_TYPE_HUGEPAGE_SIZE: + if (src->sz_range.max < src->sz_range.min) + return -EINVAL; dst->sz_range = src->sz_range; break; case DAMOS_FILTER_TYPE_PROBE_HITS_WSUM: + if (src->range_max < src->range_min) + return -EINVAL; dst->range_min = src->range_min; dst->range_max = src->range_max; break; -- 2.53.0