From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 2F28D57D221; Wed, 9 Sep 2026 14:16:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788963378; cv=none; b=ZC/rKkYuO6tOGxWrqyvHsqUhrhKZoaTIYQGU1YZcrL07WTVvCi5bYngcyxBDsZsCoYf3dfV/UF4oHnsMkJ35bbPPIvTQkLihv10fzv1fu95SPi/372drWSIwaiNCLE7gWvVhZ79hV2zz+9D4kaZWo8wR4XbZWMDxEP2ohn7dxdI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788963378; c=relaxed/simple; bh=WLQPe4Wxuo3m0WpNGjwa0SSuFTeBvaLjnKhgYQ7fX18=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GgKZjtR9rxNqmgClbKLdn27AR0hpHdvqt22SH8G6pSNh3ZDH/ScBjpg4Ip/l1GYZ5SxgkndO9ONazt7l0FR3TpKycuIGUKMH7QEwlZa2HyhiTmu4CVSmyb4ttdSYAghTcESA1x0EQrP0OEHbcj2o4UlvXMgrcKjW7uDM0UYt4kg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=gZa/pXw7; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="gZa/pXw7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8742D1F00A3A; Wed, 9 Sep 2026 14:16:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1788963377; bh=EPzJ67hs7Ah1rZs4kHpSdb7XM03laLH27/fL5jPgh6s=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=gZa/pXw77JBTb8rVlJbB5YrrKl3d9lYyErETV6VQK2NbsQxnQk7r7j87BPhz7icp/ leDNGL7LNvxJ02O0qbnNjfZM7rpwNwKwmbV/EOZN6/PtAkCg9G5cc3EebECmCtc43D YmdKg3ThxwGH8DZD3upKErsCGjk50zT68kjdiS6w= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, SJ Park , Andrew Morton Subject: [PATCH 6.18 058/583] mm/damon/sysfs-schemes: kobject_del() scheme region dirs Date: Wed, 9 Sep 2026 15:35:43 +0200 Message-ID: <20260909134240.033974103@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260909134237.773280130@linuxfoundation.org> References: <20260909134237.773280130@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: SJ Park commit f3ec3271210781c255e737498b84d5790e8176b4 upstream. On CONFIG_DEBUG_KOBJECT_RELEASE enabled kernel, lack of kobject_del() could cause directories creation failures due to the name conflicts. Fix those issues for scheme region directories by adding kobject_del() calls. This issue was discovered [1] by Sashiko, though its analysis was partially incorrect. Link: https://lore.kernel.org/20260628220121.97360-5-sj@kernel.org Link: https://lore.kernel.org/20260517205828.6204-1-sj@kernel.org [1] Fixes: 9277d0367ba1 ("mm/damon/sysfs-schemes: implement scheme region directory") Signed-off-by: SJ Park Cc: # 6.2.x Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman --- mm/damon/sysfs-schemes.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -166,6 +166,7 @@ static void damon_sysfs_scheme_regions_r list_for_each_entry_safe(r, next, ®ions->regions_list, list) { list_del(&r->list); + kobject_del(&r->kobj); kobject_put(&r->kobj); regions->nr_regions--; }