From: Christoph Hellwig <hch@infradead.org>
To: Ye Chey <yechey@ai-sast.com>
Cc: linux-block@vger.kernel.org, axboe@kernel.dk
Subject: Re: [PATCH] pktcdvd: fix missing bio_alloc_clone NULL check in pkt_make_request_read
Date: Wed, 21 May 2025 09:13:20 -0700 [thread overview]
Message-ID: <aC37oAvMagTbRoPt@infradead.org> (raw)
In-Reply-To: <20250521123019.25282-1-yechey@ai-sast.com>
On Wed, May 21, 2025 at 08:30:19PM +0800, Ye Chey wrote:
> The bio_alloc_clone() call in pkt_make_request_read() lacks NULL check,
> which could lead to NULL pointer dereference. Add NULL check and handle
> allocation failure by calling bio_io_error().
Please explain in detail how this could ever lead to a path in
bio_alloc_clone that could return NULL and how you came to that
conclusion.
next prev parent reply other threads:[~2025-05-21 16:13 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-05-21 12:30 [PATCH] pktcdvd: fix missing bio_alloc_clone NULL check in pkt_make_request_read Ye Chey
2025-05-21 16:13 ` Christoph Hellwig [this message]
2025-05-21 17:47 ` yechey
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