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 B0F16397930 for ; Fri, 25 Sep 2026 10:42:24 +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=1790332945; cv=none; b=Nx6xl4eBzeI2YUMIBOrBNZ4kWtfYk2ynQW49G6HPnHXxMIOsKtdahoijVPau1x/FgxBrhc/APd0NsYThjz7K+K0V+afaUBn5j6uAiWsFUJaUm/4erPlQ63J3bhO5hmSKSw3kvbzs1iUvC450RPBbExp5sKLW11AQiVy7YWeC36w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790332945; c=relaxed/simple; bh=jn5oXShruzIDm1bdt/x63trexDsqvtcOlYS2qoqGnko=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=kfIk3c3eTxVZPM4gWjcpO25Zlbf7+LhHZipCAeqy7pSHjssyqzAM2E6TKNRx/1J6UC8qK/zcsITpzvb0ctmM7ClC/lfrj0FL1N1TuSx+1uwU8etOZmJv+Qz0MWiWl3pDWLfM8nHo74K5UzqbUfm8INEQydIwo+DictYin3U0Zmo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=tFM2U+PA; 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="tFM2U+PA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5F5F1F00893; Fri, 25 Sep 2026 10:42:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790332944; bh=f9awMxCtvnc2iNExzpCgO4Y9lQoDsRfeDJDWyQkV/XI=; h=From:To:Cc:Subject:Date:Reply-To; b=tFM2U+PAOZHMnMPhbmWL/btYkOpS5rmEjX34JMFs+zzmzDBcDSXlYTYiVbcq15Pi6 AzfIkOI47xjrVda+kjsB18ca96z22euhm6zkxHiiGShkmnGXijaSXXrHsHMLQaq4wP PlCdTm4O3zL+OpC6F/mxeBGh30IUJmpW+nuDqtk4= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-98159: wifi: mt76: mt7921: validate CLC firmware records Date: Fri, 25 Sep 2026 12:40:06 +0200 Message-ID: <2026092520-CVE-2026-98159-0eb3@gregkh> X-Mailer: git-send-email 2.55.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2564; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=kHi26XuIDjCeJ9McGUrkV0zJzvg7LkPqHUZ/L4v5kBw=; b=owGbwMvMwCRo6H6F97bub03G02pJDFnb/CNOT/76+WH97eDSxbEq8/tnzf2j92bF4bSlu2XWZ fz/OefIt45YFgZBJgZZMUWWL9t4ju6vOKToZWh7GmYOKxPIEAYuTgGYiHESw4LG/y4r9y0weCF7 xKeBYdLfcwsWdV5gmO/4v61636HjUl/9FXo57HWvbG1v+gQA X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7921: validate CLC firmware records The CLC region is supplied by firmware, but the loader trusts the region count and each record length. A malformed image can make the region table pointer precede the firmware buffer, make the record loop fail to advance, or index phy->clc past its end. Validate the table and record bounds before dereferencing or copying. The Linux kernel CVE team has assigned CVE-2026-98159 to this issue. Affected and fixed versions =========================== Issue introduced in 6.1 with commit 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 and fixed in 6.12.111 with commit 602a950134ee2940136f60797e4457c3983b06ce Issue introduced in 6.1 with commit 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 and fixed in 6.18.53 with commit 3896be051e928c891922d91de94c99519d215dff Issue introduced in 6.1 with commit 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 and fixed in 7.2.7 with commit 3c505e2af16a9320f4355218394a955fbbc65322 Issue introduced in 6.1 with commit 23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125 and fixed in 7.3-rc1 with commit 9417c5818a0146980c2608fda94c908e604eb033 Please see https://www.kernel.org for a full list of currently supported kernel versions by the kernel community. Unaffected versions might change over time as fixes are backported to older supported kernel versions. The official CVE entry at https://cve.org/CVERecord/?id=CVE-2026-98159 will be updated if fixes are backported, please check that for the most up to date information about this issue. Affected files ============== The file(s) affected by this issue are: drivers/net/wireless/mediatek/mt76/mt7921/mcu.c Mitigation ========== The Linux kernel CVE team recommends that you update to the latest stable kernel version for this, and many other bugfixes. Individual changes are never tested alone, but rather are part of a larger kernel release. Cherry-picking individual commits is not recommended or supported by the Linux kernel community at all. If however, updating to the latest release is impossible, the individual changes to resolve this issue can be found at these commits: https://git.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ce https://git.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dff https://git.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322 https://git.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033