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=1794045869; b=ZQjgL/TycNBAfkO9i1uydnKX0SJ+hLppNt0vdqx016pKQp1TMi1aZuMPQYw7JNDeoK/A sXVvKpXZvp9VQOgC1QsX9gxDeaQcNM8d+bOi5Hl5FrySYlmElCrEJHuMf55gNg1QNrjzI YHl0wUud4krRS1Rbi2d3XVmFXa9HHhhmN31RlEuafPCcf2PywNmpQpSL64KzyFAH/0YIq N0ZO2fYSB1mrkZVONBH3TQSZalXLUcs1gDj5KjvpL23U3sTwythygBbUsElZiHaOb+j2q x0MUFR9VLaIOJVrMDK/Y+wGfrz8T2jYvyYgM5dN9xjx0lp3bq7y11VnQrIPXIybqs7Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794045869; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:Content-Type:Content-Transfer-Encoding; bh=m/7iDaTKNrI6r9xB8EttqWHd1sJhVr9ArVi2Ei1Ml9Q=; b=HQqeOFozwcMp1tJEPlDp5aJ/EC9iNE7MQGv8J+dw5buo/aQuCBaM4bYbck/XGbydNfO6 B8C2I+p9+46EnzCQexsGE/nYuES6SvNObUWpPqpXtzWI3GS5HOYKuUKZ5ZKloHVRZcuvt I5nVN3LYoOQ/hrE+pb/j92QvjqYZVbLbheqB3Scr4S07crEGNI1ROX9mHQMalE1CcCi8Y +vi17ggijKuf2hgwwPxdog8pU8d/7iKZcSyuhE9q2WZua3bgAwlqDLKQW5p363v88g4xu wxhiCQT5XaAIVVMvt5/jIpH7BfK3yRCY2Z8aWRELc5YpugcdOyD4Uwacm0fnAWWq3JA== 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=V2yGgPlz; 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 3A019606A326 for ; Sat, 7 Nov 2026 10:04:28 +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=V2yGgPlz Received: by smtp.kernel.org (Postfix) with ESMTPSA id 139B21F0089F; Sat, 7 Nov 2026 10:04:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1794045868; bh=m/7iDaTKNrI6r9xB8EttqWHd1sJhVr9ArVi2Ei1Ml9Q=; h=From:To:Cc:Subject:Date; b=V2yGgPlzBMR8+p7EOrdMcTvC4XMluEHmNwSAEoKBjb542UjlVKmOBM8SJjpWBWg3S +8/wCiuqdxWMSr7CJM6gWoNzp9aYqE/AvNSgO57/INWqoZ7IwVySylBj0rBqZ5WRwg fiXxwGJOcu4ClTOIAju+WqUHHzFRVRDCMXkT88Yoa28Ud8AB/8ZEGBr7AstO/PQB1g gYgdEXdz8CLU6XHW7paY2Sn6T3M3oo2kad6n8JbitV6+AzO+C73PLPb5TkwH+ZZVl0 KKYYdiyYvjdF+hvHR1BqwWJDwZ3OpeuM3QS8We1VL2lg0jC0QAgA0G1Y22yyaDfRPZ OUdM42MWuBL8g== 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 7.3-stable tree Date: Sat, 7 Nov 2026 05:04:27 -0500 Message-ID: <20261107050426-failed-7.3-1bfb9384ae0e@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 7.3-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-7.3.y git checkout FETCH_HEAD git cherry-pick -x 1bfb9384ae0ed52d61eb601b655014b7815ff849 # git commit -s git send-email --to '' --in-reply-to '20261107050426-failed-7.3-1bfb9384ae0e@kernel.org' --subject-prefix 'PATCH 7.3.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