From: Eric Sandeen <sandeen@sandeen.net>
To: 刘通 <lyutoon@gmail.com>
Cc: "linux-xfs@vger.kernel.org" <linux-xfs@vger.kernel.org>
Subject: Re: A bug was found in Linux Kernel 5.15.148 and 5.15.150: KASAN: use-after-free in xfs_allocbt_init_key_from_rec (with POC)
Date: Thu, 11 Apr 2024 15:34:15 -0500 [thread overview]
Message-ID: <24467239-e3a3-46db-aa1d-e876abe03cdd@sandeen.net> (raw)
In-Reply-To: <d1d4df97-307c-4c61-86bc-c83b8f10a745@sandeen.net>
On 4/2/24 12:55 PM, Eric Sandeen wrote:
>> # Step to reproduce:
>> 1. download the zip file
>> 2. unzip it
>> 3. compile the kernel (5.15.148, 5.15.150) with kernel_config
>> 4. start the kernel with qemu vm
>> 5. scp repro.c to the vm
>> 6. compile the repro.c and run it: gcc repro.c -o exp && ./exp
>> 7. you will see the KASAN error
> AFAICT you won't. I did exactly this, and got no KASAN error.
> Did you, after following these steps on a fresh boot of the kernel?
Any follow up here? Do you actually hit a KASAN error after following these
exact steps?
-Eric
prev parent reply other threads:[~2024-04-11 20:43 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-07 7:23 A bug was found in Linux Kernel 5.15.148 and 5.15.150: KASAN: use-after-free in xfs_allocbt_init_key_from_rec (with POC) 刘通
2024-04-02 5:54 ` Eric Sandeen
[not found] ` <CAEJPjCvK-LATJ5B9-=KXa3oMZwT-zQyFqMNU9EgcfsRD12AWWA@mail.gmail.com>
2024-04-02 15:09 ` Eric Sandeen
[not found] ` <CAEJPjCsXGHWzek7AQ1g3byUZe1Uq7KuUxJ0GY2fac3J8y+LFZQ@mail.gmail.com>
2024-04-02 17:55 ` Eric Sandeen
2024-04-11 20:34 ` Eric Sandeen [this message]
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