From: "Theodore Ts'o" <tytso@mit.edu>
To: cheung wall <zzqq0103.hey@gmail.com>
Cc: Andreas Dilger <adilger.kernel@dilger.ca>,
linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: "possible deadlock in corrupted" in Linux kernel version 5.15.169
Date: Fri, 3 Jan 2025 10:27:18 -0500 [thread overview]
Message-ID: <20250103152718.GA1284777@mit.edu> (raw)
In-Reply-To: <CAKHoSAviexD6O+QuaNya4xsqaW6URLFWee7vgTGOiJO8x1mkJw@mail.gmail.com>
On Fri, Jan 03, 2025 at 03:37:31PM +0800, cheung wall wrote:
> Hello,
>
> I am writing to report a potential vulnerability identified in the
> Linux Kernel version 5.15.169. This issue was discovered using our
> custom vulnerability discovery tool.
Do you have a reproducer? If I had to guess, this was caused by a
maliciously fuzzed file system where the quota file was placed on the
orphaned file list. We have checks for the more modern quota file
support (see the checks for EXT4_IGET_SPECIAL in fs/ext4/inode.c's
__ext4_iget() function), even for antedeluvian kernel versions such as
5.15, however so that's not it.
In any case, with a crazy old kernel version, and no reproducer, it's
not something we're likely to waste any time on.
- Ted
prev parent reply other threads:[~2025-01-03 15:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-03 7:37 "possible deadlock in corrupted" in Linux kernel version 5.15.169 cheung wall
2025-01-03 7:50 ` Reindl Harald
2025-01-03 15:27 ` Theodore Ts'o [this message]
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