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Tue, 21 Apr 2026 16:30:57 -0700 (PDT) Received: from localhost ([2a00:79e0:2e7c:8:50be:3375:972d:9e1d]) by smtp.gmail.com with UTF8SMTPSA id a92af1059eb24-12c770516f1sm19900053c88.7.2026.04.21.16.30.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 21 Apr 2026 16:30:57 -0700 (PDT) Date: Tue, 21 Apr 2026 16:30:55 -0700 From: Brian Norris To: Tristan Madani Cc: Johannes Berg , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Tristan Madani Subject: Re: [PATCH v3 2/6] wifi: mwifiex: fix OOB write from firmware TID in ADDBA response handler Message-ID: References: <20260421134938.331334-1-tristmd@gmail.com> <20260421134938.331334-3-tristmd@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260421134938.331334-3-tristmd@gmail.com> On Tue, Apr 21, 2026 at 01:49:34PM +0000, Tristan Madani wrote: > From: Tristan Madani > > The TID value extracted from the Block Ack parameter set is a 4-bit > field (0-15), but aggr_prio_tbl[] has only 8 entries. A TID >= 8 causes > an out-of-bounds write to adjacent struct mwifiex_private fields. > > Add a bounds check after extracting the TID. > > Fixes: 5e6e3a92b9a4 ("wireless: mwifiex: initial commit for Marvell mwifiex driver") > Signed-off-by: Tristan Madani > --- > Changes in v3: > - Regenerated from wireless-next with proper git format-patch to > produce valid index hashes (v2 had post-processed index lines). > > Changes in v2: > - No code changes from v1. > > drivers/net/wireless/marvell/mwifiex/11n.c | 5 +++++ > 1 file changed, 5 insertions(+) Acked-by: Brian Norris