From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2DF1D37C92C; Thu, 30 Jul 2026 15:37:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785425833; cv=none; b=jU2MTa6YEF4O3dBXc6bgroHr+3wvO+Q515zKFBekNa2zIioytwAbEh6wtHcwK1Xec5bWWz14GXpJ6wfzlGmlw9IXLS2ixrR8XA90eylqBXKHTw2qQiQkvC2Y1RMpn5xN5jKlUYHdJE3a5+xBNy5+Gt1Gj2sF/25PDqms3rqBpoc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785425833; c=relaxed/simple; bh=MWCQO8tLVwtjv+nBU8nGwkzh+q+S0bRRYriiFRgQwwc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=gWlql4sUy/GmKXlm7tT5HL9ysI/wefB8XXJK4ze7YC1q/75F9kAmeMfFd7uiOigeDc0Kx3PkewrbaBYxEu+Bjul/1CEiXnJ/02DljF6TOq0nXmoNmXDJTvnGDHDs7zvq/tfAQ7Xr2Yl5pRCANpMB6wb+aDduLI9MESwjpFGPRTU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=TbDMG2tZ; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="TbDMG2tZ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8655A1F000E9; Thu, 30 Jul 2026 15:37:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1785425832; bh=rczP1GWTf+vQzGV2yBrK1s8r2iB5hGVxcrrEa7MHOgA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=TbDMG2tZ499Up2HjMUHsaAR9F7RsXiHRUETnOdTHH31ukSeJpwzc83aGdrLprEI14 FUgM0DFhObQ4fLl9OXk7hSC87NRzuwN8muHMFKVzmeif/O3FEg2O4a+ir6UvJTqv4W Ay8UCggSqntIDn42eVQudPAbEF3NkKMfJVG0gT6M= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Lorenzo Bianconi , Felix Fietkau , Sasha Levin Subject: [PATCH 6.12 207/602] wifi: mt76: connac: fix possible NULL-pointer deref in mt76_connac_mcu_uni_bss_he_tlv() Date: Thu, 30 Jul 2026 16:09:59 +0200 Message-ID: <20260730141440.305284246@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260730141435.976815864@linuxfoundation.org> References: <20260730141435.976815864@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Lorenzo Bianconi [ Upstream commit 2c1fb2335f5e3afb34f91bc07ecb63517c328090 ] mt76_connac_get_he_phy_cap routine can theoretically return NULL so check cap pointer before dereferencing it. Fixes: d0e274af2f2e4 ("mt76: mt76_connac: create mcu library") Signed-off-by: Lorenzo Bianconi Link: https://patch.msgid.link/20260621-mt76_connac_get_he_phy_cap-fix-v1-1-ed4ccf7a0363@kernel.org Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c index 462b4a68c4f0f1..b1a7fbedffac5c 100644 --- a/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c +++ b/drivers/net/wireless/mediatek/mt76/mt76_connac_mcu.c @@ -1435,6 +1435,8 @@ mt76_connac_mcu_uni_bss_he_tlv(struct mt76_phy *phy, struct ieee80211_vif *vif, struct bss_info_uni_he *he; cap = mt76_connac_get_he_phy_cap(phy, vif); + if (!cap) + return; he = (struct bss_info_uni_he *)tlv; he->he_pe_duration = vif->bss_conf.htc_trig_based_pkt_ext; -- 2.53.0