linux-kernel - Re: possible fix (linux-ntfs3)

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Message-ID: <0000000000005ed0360621220006@google.com>
Date: Mon, 02 Sep 2024 05:22:59 -0700
From: syzbot <syzbot+4d2aaeff9eb5a2cfec70@...kaller.appspotmail.com>
To: almaz.alexandrovich@...agon-software.com
Cc: almaz.alexandrovich@...agon-software.com, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: Re: possible fix (linux-ntfs3)

> #syz test:https://github.com/Paragon-Software-Group/linux-ntfs3.git master

unknown command "test:https://github.com/Paragon-Software-Group/linux-ntfs3.git"

>
> diff --git a/fs/ntfs3/super.c b/fs/ntfs3/super.c
> index 128d49512f5d..c08bbacc0030 100644
> --- a/fs/ntfs3/super.c
> +++ b/fs/ntfs3/super.c
> @@ -125,8 +125,9 @@ void ntfs_inode_printk(struct inode *inode, const 
> char *fmt, ...)
>
>           if (de) {
>               spin_lock(&de->d_lock);
> -            snprintf(name, sizeof(s_name_buf), " \"%s\"",
> -                 de->d_name.name);
> +            if (snprintf(name, sizeof(s_name_buf), " \"%s\"",
> +                     de->d_name.name) >= sizeof(s_name_buf))
> +                name[sizeof(s_name_buf) - 1] = 0;
>               spin_unlock(&de->d_lock);
>           } else {
>               name[0] = 0;
>