From: Junjie Cao <junjie.cao@intel.com>
To: Laxman Acharya Padhya <acharyalaxman8848@gmail.com>,
Felix Fietkau <nbd@nbd.name>
Cc: Lorenzo Bianconi <lorenzo@kernel.org>,
Ryder Lee <ryder.lee@mediatek.com>,
Shayne Chen <shayne.chen@mediatek.com>,
Sean Wang <sean.wang@mediatek.com>,
Deren Wu <deren.wu@mediatek.com>,
Ming Yen Hsieh <mingyen.hsieh@mediatek.com>,
Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, linux-wireless@vger.kernel.org,
linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] wifi: mt76: mt7921: skip unknown CLC firmware records
Date: Tue, 1 Sep 2026 22:27:57 +0800 [thread overview]
Message-ID: <20260901142757.422688-1-junjie.cao@intel.com> (raw)
In-Reply-To: <20260816174841.1918-1-acharyalaxman8848@gmail.com>
On Sun, 16 Aug 2026 23:33:40 +0545, Laxman Acharya Padhya wrote:
> Treat an out-of-range CLC index as newer firmware rather than a
> malformed image. linux-firmware 20260810 ships MT7922 records with
> idx 3, and rejecting them made mt7921e fail to probe.
[...]
> Fixes: 9417c5818a01 ("wifi: mt76: mt7921: validate CLC firmware records")
Reviewed-by: Junjie Cao <junjie.cao@intel.com>
This wants Cc: stable, and it must not reach stable after 9417c5818a01
does. That commit carries Fixes: 23bdc5d8cadf (2022) and is in v7.3-rc1,
so the Fixes-tag scan can pick it for every series with a three-entry
phy->clc[]; there this firmware then fails probe. Those trees today read
the idx 3 record past the array instead (UBSAN at mcu.c:474 on 7.1.12,
https://bugzilla.redhat.com/show_bug.cgi?id=2515420).
Greg: if 9417c5818a01 gets queued, please take the two together.
My Sep 1 patch duplicates this; withdrawn.
prev parent reply other threads:[~2026-09-01 14:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-10 18:54 [PATCH] wifi: mt76: mt7921: validate CLC firmware records Laxman Acharya Padhya
2026-08-16 13:23 ` Mikhail Gavrilov
2026-08-16 17:48 ` [PATCH] wifi: mt76: mt7921: skip unknown " Laxman Acharya Padhya
2026-08-17 20:16 ` Mikhail Gavrilov
2026-09-01 14:27 ` Junjie Cao [this message]
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