From: Christoph Hellwig <hch@infradead.org>
To: Yongpeng Yang <yangyongpeng.storage@gmail.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>,
Sungjong Seo <sj1557.seo@samsung.com>,
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>,
Jan Kara <jack@suse.cz>, Carlos Maiolino <cem@kernel.org>,
Jens Axboe <axboe@kernel.dk>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Sasha Levin <sashal@kernel.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Christian Brauner <brauner@kernel.org>,
Christoph Hellwig <hch@infradead.org>,
linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-block@vger.kernel.org, stable@vger.kernel.org,
Matthew Wilcox <willy@infradead.org>,
"Darrick J . Wong" <djwong@kernel.org>,
Yongpeng Yang <yangyongpeng@xiaomi.com>
Subject: Re: [PATCH v5 3/5] isofs: check the return value of sb_min_blocksize() in isofs_fill_super
Date: Tue, 4 Nov 2025 03:02:11 -0800 [thread overview]
Message-ID: <aQndM_Bq1HPRNyds@infradead.org> (raw)
In-Reply-To: <20251103164722.151563-4-yangyongpeng.storage@gmail.com>
On Tue, Nov 04, 2025 at 12:47:21AM +0800, Yongpeng Yang wrote:
> From: Yongpeng Yang <yangyongpeng@xiaomi.com>
>
> sb_min_blocksize() may return 0. Check its return value to avoid
> opt->blocksize and sb->s_blocksize is 0.
>
> Cc: <stable@vger.kernel.org> # v6.15
> Fixes: 1b17a46c9243e9 ("isofs: convert isofs to use the new mount API")
> Reviewed-by: Jan Kara <jack@suse.cz>
> Signed-off-by: Yongpeng Yang <yangyongpeng@xiaomi.com>
> ---
> fs/isofs/inode.c | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
> index 6f0e6b19383c..ad3143d4066b 100644
> --- a/fs/isofs/inode.c
> +++ b/fs/isofs/inode.c
> @@ -610,6 +610,11 @@ static int isofs_fill_super(struct super_block *s, struct fs_context *fc)
> goto out_freesbi;
> }
> opt->blocksize = sb_min_blocksize(s, opt->blocksize);
> + if (!opt->blocksize) {
> + printk(KERN_ERR
This should probably use pr_err instead.
next prev parent reply other threads:[~2025-11-04 11:02 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-03 16:47 [PATCH v5 1/5] vfat: fix missing sb_min_blocksize() return value checks Yongpeng Yang
2025-11-03 16:47 ` [PATCH v5 2/5] exfat: check return value of sb_min_blocksize in exfat_read_boot_sector Yongpeng Yang
2025-11-04 11:01 ` Christoph Hellwig
2025-11-04 11:23 ` Namjae Jeon
2025-11-03 16:47 ` [PATCH v5 3/5] isofs: check the return value of sb_min_blocksize() in isofs_fill_super Yongpeng Yang
2025-11-04 11:02 ` Christoph Hellwig [this message]
2025-11-04 11:32 ` Yongpeng Yang
2025-11-03 16:47 ` [PATCH v5 4/5] xfs: check the return value of sb_min_blocksize() in xfs_fs_fill_super Yongpeng Yang
2025-11-04 11:04 ` Christoph Hellwig
2025-11-03 16:47 ` [PATCH v5 5/5] block: add __must_check attribute to sb_min_blocksize() Yongpeng Yang
2025-11-04 11:05 ` Christoph Hellwig
2025-11-04 12:36 ` Yongpeng Yang
2025-11-03 16:56 ` [PATCH v5 1/5] vfat: fix missing sb_min_blocksize() return value checks OGAWA Hirofumi
2025-11-04 11:36 ` Yongpeng Yang
2025-11-04 11:01 ` Christoph Hellwig
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