linux-kernel - [PATCH 0/7] ext4: avoid sysfs variables overflow causing BUG

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Message-ID: <20240126085716.1363019-1-libaokun1@huawei.com>
Date: Fri, 26 Jan 2024 16:57:09 +0800
From: Baokun Li <libaokun1@...wei.com>
To: <linux-ext4@...r.kernel.org>
CC: <tytso@....edu>, <adilger.kernel@...ger.ca>, <jack@...e.cz>,
	<ritesh.list@...il.com>, <linux-kernel@...r.kernel.org>,
	<yi.zhang@...wei.com>, <yangerkun@...wei.com>, <chengzhihao1@...wei.com>,
	<yukuai3@...wei.com>, <libaokun1@...wei.com>
Subject: [PATCH 0/7] ext4: avoid sysfs variables overflow causing BUG_ON/SOOB

Hello everyone,

This patchset is intended to avoid variables that can be modified via sysfs
from overflowing when stored or used and thus causing various problems.

"kvm-xfstests -c ext4/all -g auto" has been executed with no new failures.

Baokun Li (7):
  ext4: avoid overflow when setting values via sysfs
  ext4: refactor out ext4_generic_attr_store()
  ext4: refactor out ext4_generic_attr_show()
  ext4: add positive int attr pointer to avoid sysfs variables overflow
  ext4: fix slab-out-of-bounds in
    ext4_mb_find_good_group_avg_frag_lists()
  ext4: set type of ac_groups_linear_remaining to __u32 to avoid
    overflow
  ext4: set the type of max_zeroout to unsigned int to avoid overflow

 fs/ext4/extents.c |   6 +-
 fs/ext4/mballoc.c |   2 +
 fs/ext4/mballoc.h |   2 +-
 fs/ext4/sysfs.c   | 159 +++++++++++++++++++++++++---------------------
 4 files changed, 92 insertions(+), 77 deletions(-)

-- 
2.31.1