linux-kernel - Re: [PATCH] tools/io_uring: Fix missing check for return value of malloc()

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Message-ID: <34898926-681e-1790-4303-e2b54e793a62@gnuweeb.org>
Date:   Thu, 15 Jun 2023 20:00:56 +0700
From:   Ammar Faizi <ammarfaizi2@...weeb.org>
To:     Chenyuan Mi <cymi20@...an.edu.cn>, Jens Axboe <axboe@...nel.dk>
Cc:     Pavel Begunkov <asml.silence@...il.com>,
        io-uring Mailing List <io-uring@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] tools/io_uring: Fix missing check for return value of
 malloc()

On 6/15/23 7:50 PM, Chenyuan Mi wrote:
> The malloc() function may return NULL when it fails,
> which may cause null pointer deference in kmalloc(),

It's a userspace app, there is no kmalloc(). Also, I don't think it's
worth to fix a missing ENOMEM handling for that old test program. But
anyway, let's wait for maintainers' comment on this.

-- 
Ammar Faizi