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=1793212447; b=2Mlcn4OcIqM89gEU674p/KEb7xAd2HltzFAvvKn2sf7fmycCZk8o+Pk3WcLLVAO5jQvH 5ZChrcG+l8mC/BmKjO6HZ3LhjNnKOrFyHS+rRTwDevbexev5f0sbqOYRZ6OeVlU5hrsw9 llfVPMYMH3N8XbOvfPmrok+JPtI1q0YEUospJBzan+fzapEmLu+wP2VeUuFBIUgoRx0lR YMFX6JKayIgI7DVSyrEuUIwEIPVaGkiEhKPUDi6/UnTugHLCNnv0+7mzGgDGUiMgadAQD 45sUIpI3JHyEO3/7/AWqH+Mvc1X2V4P+PUZfpRc03nmVJLGwggTE2LYuORN9R9JPp9Q== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793212447; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:User-Agent:X-stable:X-Patchwork-Hint: MIME-Version:Content-Transfer-Encoding; bh=oEmWWkSjLmgOsJNyuIHAxvej/lffQRtZRvTPZFgIUvQ=; b=WN/ZdLBiaNzel9cFooucV/MKspQhnZ40byxiIB7ygBCBslu+d2ahXMbRnayCKdf9wW1G tcxN7m+GSS62LmLen4+v16FHR2S54GjFeLh/q1RrPqZNS9IkQgxB70GO3xCX0S3gJQehD WPAPL0rOoNGDRx4QiKCxY9Imn91qvHi3KT/kV0aozltuxhziRvK4Y61+ZqIG0+QKqKacY 8WHLtpPlvE6fZ4PDG6PN1xFfBqeAKz04u0IQcVI9QTDc0hK+fjm801rvzzUbg10QkZ81+ aw5Sxqi7+seh28atmibULKlJ5imaPggS5T40BD7kUaVwHwG+45OH3yOaRSrGomlHpYA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=GwHukMGd; 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 54132606A338; Wed, 28 Oct 2026 18:34:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.a=rsa-sha256 header.s=korg header.b=GwHukMGd Received: by smtp.kernel.org (Postfix) with ESMTPSA id A2EC71F01829; Wed, 28 Oct 2026 18:34:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793212447; bh=oEmWWkSjLmgOsJNyuIHAxvej/lffQRtZRvTPZFgIUvQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=GwHukMGdWDsH/Wtf76M4uSvlSFGbk+lC3C2bAY6KPOgYA82lvXPLBPXy4V6ALmMrv jydL9H7wJryKmIe2B3UQXa4yDrBzEWw1Wh//gizuC93wbMmtUkHeWrK9Tq1BkD9jgk uKAUt/vtqf9HVL2fh0eVoux7WYAUaTzl5QGrImQY= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chao Yu , Guanghui Yang <3497809730@qq.com>, Jaegeuk Kim , Sasha Levin Subject: [PATCH 6.1 0114/1887] f2fs: fix dentry folio leak in find_in_level Date: Wed, 28 Oct 2026 17:36:50 +0100 Message-ID: <20261028170501.829390467@linuxfoundation.org> X-Mailer: git-send-email 2.56.0 In-Reply-To: <20261028170459.200466217@linuxfoundation.org> References: <20261028170459.200466217@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore X-Mailing-List: patches@lists.linux.dev List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Guanghui Yang <3497809730@qq.com> [ Upstream commit cca7d3e30bf30333314e31bc70b9a739f1342167 ] find_in_level() gets a dentry folio with f2fs_find_data_folio() before calling find_in_block(). If find_in_block() returns an error, the function stores the error in res_folio and breaks out of the loop without dropping the dentry folio. This leaks the folio reference on the find_in_block() error path. Drop the dentry folio before returning the error to the caller. Fixes: 7ad08a58bf67 ("f2fs: Handle casefolding with Encryption") Cc: stable@vger.kernel.org Reviewed-by: Chao Yu Signed-off-by: Guanghui Yang <3497809730@qq.com> Signed-off-by: Jaegeuk Kim [ Replaced f2fs_folio_put(dentry_folio, false) with f2fs_put_page(dentry_page, 0) for the page-based API. ] Signed-off-by: Sasha Levin --- fs/f2fs/dir.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 29ac1e77b5d7a..cadc32959a23f 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -374,6 +374,7 @@ static struct f2fs_dir_entry *find_in_level(struct inode *dir, de = find_in_block(dir, dentry_page, fname, &max_slots, use_hash); if (IS_ERR(de)) { + f2fs_put_page(dentry_page, 0); *res_page = ERR_CAST(de); de = NULL; break; -- 2.53.0