From: Markus Elfring <Markus.Elfring@web.de>
To: Osama Abdelkader <osama.abdelkader@gmail.com>,
linux-riscv@lists.infradead.org
Cc: Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>,
Andrew Morton <akpm@linux-foundation.org>,
Lorenzo Stoakes <lorenzo.stoakes@oracle.com>,
Oscar Salvador <osalvador@suse.de>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <pjw@kernel.org>,
Qi Zheng <zhengqi.arch@bytedance.com>,
Suren Baghdasaryan <surenb@google.com>,
LKML <linux-kernel@vger.kernel.org>
Subject: Re: riscv: mm: add null check for find_vm_area in set_memory
Date: Mon, 16 Mar 2026 17:34:31 +0100 [thread overview]
Message-ID: <0ff57f8f-910c-4197-9c30-fb285dd69f26@web.de> (raw)
In-Reply-To: <abgfx9gpUA6vWvZA@osama>
>>> find_vm_area() can return NULL. Add a null check to avoid potential
>>> null pointer dereference, matching the pattern used by other arches.
>>
>> 1. Were any source code analysis tools involved here?
>
> No, both were found during manual review and compare with arm64.
Would be looking for the support of advanced approaches
which would make such a “comparison” more convenient?
Regards,
Markus
prev parent reply other threads:[~2026-03-16 16:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-14 22:28 [PATCH] riscv: mm: add null check for find_vm_area in set_memory Osama Abdelkader
2026-03-16 10:22 ` Markus Elfring
2026-03-16 15:21 ` Osama Abdelkader
2026-03-16 16:34 ` Markus Elfring [this message]
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