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([2620:10d:c092:600::1:112b]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ae053e801c1sm875316966b.17.2025.06.24.03.37.00 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 24 Jun 2025 03:37:01 -0700 (PDT) Message-ID: Date: Tue, 24 Jun 2025 11:38:27 +0100 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1 0/3] io_uring mm related abuses To: io-uring@vger.kernel.org Cc: David Hildenbrand References: Content-Language: en-US From: Pavel Begunkov In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 6/24/25 11:35, Pavel Begunkov wrote: > Patch 1 uses unpin_user_folio instead of the page variant. > Patches 2-3 make sure io_uring doesn't make any assumptions > about user pointer alignments. I didn't reproduce the alignment issue, sth wrong with my KASAN'ed machine, need to fix that, and it did't trigger without it. > > Pavel Begunkov (3): > io_uring/rsrc: fix folio unpinning > io_uring/rsrc: don't rely on user vaddr alignment > io_uring: don't assume uaddr alignment in io_vec_fill_bvec > > io_uring/rsrc.c | 28 +++++++++++++++++++++------- > io_uring/rsrc.h | 1 + > 2 files changed, 22 insertions(+), 7 deletions(-) > -- Pavel Begunkov