From: Lorenzo Bianconi <lorenzo@kernel.org>
To: sean.wang@mediatek.com
Cc: lorenzo.bianconi@redhat.com, nbd@nbd.name,
Soul.Huang@mediatek.com, YN.Chen@mediatek.com,
Leon.Yen@mediatek.com, Deren.Wu@mediatek.com,
km.lin@mediatek.com, robin.chiu@mediatek.com,
ch.yeh@mediatek.com, posh.sun@mediatek.com,
Eric.Liang@mediatek.com, Stella.Chang@mediatek.com,
jemele@google.com, yenlinlai@google.com,
linux-wireless@vger.kernel.org,
linux-mediatek@lists.infradead.org
Subject: Re: [PATCH] mt76: mt7921: add .set_sar_specs support
Date: Tue, 22 Jun 2021 08:40:44 +0200 [thread overview]
Message-ID: <YNGF7Bl2uP0SAnv9@lore-desk> (raw)
In-Reply-To: <1624315331-16608-1-git-send-email-sean.wang@mediatek.com>
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[...]
> >
> >I guess there is an use-after-free here since sar is freed at the end of nl80211_set_sar_specs, right?
> >
>
> Nope, there is no use-after-free case happens here because frp->range just points to an entry of const struct cfg80211_sar_specs table, not the one created from nl80211_set_sar_specs.
ack, right. I misread the code.
Regards,
Lorenzo
>
> >Regards,
> >Lorenzo
> >
> >> + frp->power = power;
> >> + }
> >> +
> >> + err = mt76_connac_mcu_set_rate_txpower(mphy);
> >> +
> >> +out:
> >> + mt7921_mutex_release(dev);
> >> +
> >> + return err;
> >> +}
> >> +
> >> const struct ieee80211_ops mt7921_ops = {
> >> .tx = mt7921_tx,
> >> .start = mt7921_start,
> >> @@ -1209,4 +1253,5 @@ const struct ieee80211_ops mt7921_ops = {
> >> .set_rekey_data = mt7921_set_rekey_data, #endif /* CONFIG_PM */
> >> .flush = mt7921_flush,
> >> + .set_sar_specs = mt7921_set_sar_specs,
> >> };
> >> --
> >> 2.25.1
> >>
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next prev parent reply other threads:[~2021-06-22 6:40 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <YM8NBUZp+/97kiIH@lore-desk--annotate>
2021-06-21 22:42 ` [PATCH] mt76: mt7921: add .set_sar_specs support sean.wang
2021-06-22 6:40 ` Lorenzo Bianconi [this message]
2021-06-20 5:39 sean.wang
2021-06-20 9:40 ` Lorenzo Bianconi
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