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 6105541F5D5; Sat, 12 Sep 2026 13:55:43 +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=1789221350; cv=none; b=Xdx0N2PZadyCOTpd5Lp+CYxdojPTMETKE5vM+PGU4rx72+yjNueu8uCN2YSeUVSFhGOvbYnBon7WI1ONJoF8lqafs4J9Jhkd21QIwCWrdWopTDKZdCkEDH+QSyliZN5frgA22t4tdImTwEPpQrlP1KjAcICFpiigOjvd+52727I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789221350; c=relaxed/simple; bh=oKPpDdUgreTxRj46mH6IgCL4u0mFr1RzWZc0Erse6yM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=QTMFTyUPxrRI88Vs1gB6tIYp08JVYltyyFh5Lhl4HCfH9e6PVlkkq9HvqasTOzB0OfJk3B+d2kPDs+HtPBbX0l8bkal+VhiW/jKPrrSYK27UvFoadUlaBd3T09P91tWSMzWg74Q3QtbORoFgJkLYQlZUWS7TV/Nd0AU9MaxCkjY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=BEp9FPpH; 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="BEp9FPpH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C47EF1F00893; Sat, 12 Sep 2026 13:55:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1789221342; bh=EytY4CNp8DrVV1AhxfI94InmsmYpKxj6ikncYiJRg8c=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=BEp9FPpHBn0iyoianvcw92B4uOS8E6zCsX4F1q3TWvm4qGTDpy44I6x+uORX+wefN KR2qaDhhfCVtnEq1z44MFH6PGMeo54j/LGJpDBKvv/JRRiRJyEesVEPfSSjjr+jjCw atWJFnkq0vOkmrRnRNFjYA7KYs+7e3jt/PdQglJ4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, SJ Park , Andrew Morton Subject: [PATCH 6.6 0346/1424] mm/damon/sysfs-schemes: kobject_del() scheme region dirs Date: Sat, 12 Sep 2026 08:46:18 +0200 Message-ID: <20260912065615.038470869@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260912065607.279695368@linuxfoundation.org> References: <20260912065607.279695368@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 6.6-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 @@ -151,6 +151,7 @@ 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--; }