linux-kernel - [PATCH 4/4] kyber: constify sysfs attributes

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250102-sysfs-const-attr-elevator-v1-4-9837d2058c60@weissschuh.net>
Date: Thu, 02 Jan 2025 13:01:34 +0100
From: Thomas Weißschuh <linux@...ssschuh.net>
To: Jens Axboe <axboe@...nel.dk>, Yu Kuai <yukuai3@...wei.com>
Cc: linux-block@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Thomas Weißschuh <linux@...ssschuh.net>
Subject: [PATCH 4/4] kyber: constify sysfs attributes

The elevator core now allows instances of 'struct elv_fs_entry' to be
moved into read-only memory. Make use of that to protect them against
accidental or malicious modifications.

Signed-off-by: Thomas Weißschuh <linux@...ssschuh.net>
---
 block/kyber-iosched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/kyber-iosched.c b/block/kyber-iosched.c
index 4155594aefc657016d86bb25050b67544fefaf34..dc31f2dfa414f68f3475489d5d33ad07730393b5 100644
--- a/block/kyber-iosched.c
+++ b/block/kyber-iosched.c
@@ -889,7 +889,7 @@ KYBER_LAT_SHOW_STORE(KYBER_WRITE, write);
 #undef KYBER_LAT_SHOW_STORE
 
 #define KYBER_LAT_ATTR(op) __ATTR(op##_lat_nsec, 0644, kyber_##op##_lat_show, kyber_##op##_lat_store)
-static struct elv_fs_entry kyber_sched_attrs[] = {
+static const struct elv_fs_entry kyber_sched_attrs[] = {
 	KYBER_LAT_ATTR(read),
 	KYBER_LAT_ATTR(write),
 	__ATTR_NULL

-- 
2.47.1