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=1793214567; b=ZwBOAZ1we21gebUPporj/2/Z17Xb+M5oVAq3V7gIok0sfS+q3pEK2CmA/WU2mBQKYDqE nB+Zn0wApPJWnDsb0YnKihyBi2FgCfSKyPe0IChHhmJsz4isk578mS7uXLvFLsvc0rBms 0KYNFXWE/xU8Q9br1X77+z0P8m9afZ2HOrj9ynRqNaftGzVp4kB7zVHYojS5kkhel2NZh 8g6zv3QtRarGnM0Dd/bXpBbLo8dssMwmNZBntwNjJP6jrL3je5E9TTqC4+nnIePeqv2WH GIOHxONTBJRzXnTOXKNZtxhtGxq+V30omFVVHTt9aOvZy70P07vYNk29cMUhLM19COw== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793214567; 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=187Fo/9GAFIYbhPISGeIstW/ayLG5VzLG2j7h0U2cHg=; b=LSzSyHo1+SIucTHVy3D575QDhebOrOpKdJdVc2fJ+NcCUoHvfGfiAmNWGITJ59y5u0WT C6VzPi42WnpOtGYgPaj5V96RC3WjPywpM5PHQGEmQ6PTXtVqxvdhIIGKF8goptA6ezsl2 J9Z2hgOiegF/NunKu43WKhAmbjZ0BJn8MFny3jGyKdaboOVRLFwENIty18f8lTN3SKdOt o+RcgwrOz95/013ef2JrH7loyK3vnmRssTNnIXT9U0RrLID1nnU3wgN0/caATJdbrEJXn Mt5YY6JVveQZpkYbpat/axuRP74DNtaSaV21FockMEJHW+OaFRCrRWfTD6+vtZMamMw== 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="rpd/duoW"; 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 0193B606A31C; Wed, 28 Oct 2026 19:09:27 +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=rpd/duoW Received: by smtp.kernel.org (Postfix) with ESMTPSA id 521641F01828; Wed, 28 Oct 2026 19:09:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1793214566; bh=187Fo/9GAFIYbhPISGeIstW/ayLG5VzLG2j7h0U2cHg=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=rpd/duoWiez3zZnTDv7jKhBOpQ0gHpEMF13bVTP+ZxgFYSk7RLvSC4eEksESVaQBW +hJgjJEc3WYSGKNsl7Ye+x2nJae8fVK+bqhbSnDYEvcpMJv5ZTMyL9S2fYvcnZsxok hHgJzFi5k7aAwoINScsZBrD/GTxOKiF0TKoiVVPs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chao Yu , Jaegeuk Kim , Sasha Levin Subject: [PATCH 6.1 0861/1887] f2fs: fix to avoid overflow while left shift operation Date: Wed, 28 Oct 2026 17:49:17 +0100 Message-ID: <20261028170519.013765345@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: Chao Yu [ Upstream commit 0fe1c6bec54ea68ed8c987b3890f2296364e77bb ] Should cast type of folio->index from pgoff_t to loff_t to avoid overflow while left shift operation. Fixes: 3265d3db1f16 ("f2fs: support partial truncation on compressed inode") Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim Signed-off-by: Sasha Levin --- fs/f2fs/compress.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index b882891fbf28d..37a684c682c7b 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -1216,7 +1216,7 @@ int f2fs_truncate_partial_cluster(struct inode *inode, u64 from, bool lock) for (i = cluster_size - 1; i >= 0; i--) { struct folio *folio = page_folio(rpages[i]); - loff_t start = folio->index << PAGE_SHIFT; + loff_t start = (loff_t)folio->index << PAGE_SHIFT; if (from <= start) { folio_zero_segment(folio, 0, folio_size(folio)); -- 2.53.0