linux-kernel - [RFC PATCH 0/2] mm/damon: void divide-by-zero in DAMON module's parameters application

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-next>] [day] [month] [year] [list]

Message-ID: <20250826033653.1208227-1-yanquanmin1@huawei.com>
Date: Tue, 26 Aug 2025 11:36:51 +0800
From: Quanmin Yan <yanquanmin1@...wei.com>
To: <sj@...nel.org>
CC: <akpm@...ux-foundation.org>, <damon@...ts.linux.dev>,
	<linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
	<yanquanmin1@...wei.com>, <wangkefeng.wang@...wei.com>, <zuoze1@...wei.com>
Subject: [RFC PATCH 0/2] mm/damon: void divide-by-zero in DAMON module's parameters application

DAMON's RECLAIM or LRU_SORT modules perform no validation on
user-configured parameters during application, which may lead
to division-by-zero errors.

Avoid the divide-by-zero by adding validation checks when DAMON
modules attempt to apply the parameters.

Quanmin Yan (2):
  mm/damon/lru_sort: avoid divide-by-zero in
    damon_lru_sort_apply_parameters()
  mm/damon/reclaim: avoid divide-by-zero in
    damon_reclaim_apply_parameters()

 mm/damon/lru_sort.c | 5 +++++
 mm/damon/reclaim.c  | 5 +++++
 2 files changed, 10 insertions(+)

-- 
2.43.0