From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 717B3285C9F; Wed, 25 Feb 2026 01:46:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771983991; cv=none; b=EwDOFvJIpDSbu0E55C82ngE3H1o7ZoP5G52Hef0+wM6lWE1SgKx+OToF35qFFYcF7Q/IE0eJOw8KiM+QniKJ8lgXmy7G7WEFLbuujMx0JHy91O5u8hjK+fXC0j99ITlGpfzJBPkuV7KCbgWCCPFKRaMIRA/1DN1jdFo6RzXqOiE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771983991; c=relaxed/simple; bh=eOetcmNxe8Lf18pu1a1GPmInKZpzAZ416QvsGS72N/U=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mntcpdG39Tpj3CH4raZOjv45SjIfDjLMEskrcYWKRhk8+Z1SVPCiAwsaNcOO3PPlRSFMnf0A9M+Z8LeByruX6Kftztd0W4kZbo7+60zG75pJOFyHyXRvV9LkNg5u0TDYV4IkzPGldBGnSyEobpM7lC2anGRvxjJOpl2EThx6PiI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ziO/Vsss; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="ziO/Vsss" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 30B26C116D0; Wed, 25 Feb 2026 01:46:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1771983991; bh=eOetcmNxe8Lf18pu1a1GPmInKZpzAZ416QvsGS72N/U=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ziO/VsssNOaO2muZMPJkcrGvz5+i6dh2fKrX9dfInGUwbXFX6wWEMQke5aAneBPb0 ZOkbA8zLO8xltY9IiwKwrvWbTM/0hNC/KMxe3PlvX27avOAXlNjdo4ouvm352seDE8 VElRoIdHlD66MoJZOkmSKxkpMldBUGieMUd3ymAQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Mikulas Patocka , Benjamin Marzinski , Sasha Levin Subject: [PATCH 6.18 246/641] dm: use READ_ONCE in dm_blk_report_zones Date: Tue, 24 Feb 2026 17:19:32 -0800 Message-ID: <20260225012354.822784778@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260225012348.915798704@linuxfoundation.org> References: <20260225012348.915798704@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org 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: Mikulas Patocka [ Upstream commit e9f5a55b70ae6187ab64ef2d1232ae2738e31d1f ] The functon dm_blk_report_zones reads md->zone_revalidate_map, however it may change while the function is running. Use READ_ONCE. Signed-off-by: Mikulas Patocka Fixes: 37f53a2c60d0 ("dm: fix dm_blk_report_zones") Reviewed-by: Benjamin Marzinski Signed-off-by: Sasha Levin --- drivers/md/dm-zone.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/dm-zone.c b/drivers/md/dm-zone.c index ba39c8313f32b..f4950b5f766d3 100644 --- a/drivers/md/dm-zone.c +++ b/drivers/md/dm-zone.c @@ -56,7 +56,7 @@ int dm_blk_report_zones(struct gendisk *disk, sector_t sector, { struct mapped_device *md = disk->private_data; struct dm_table *map; - struct dm_table *zone_revalidate_map = md->zone_revalidate_map; + struct dm_table *zone_revalidate_map = READ_ONCE(md->zone_revalidate_map); int srcu_idx, ret = -EIO; bool put_table = false; -- 2.51.0