From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 E1DF22773EE for ; Sat, 14 Feb 2026 16:06:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771085163; cv=none; b=SIvL+MsEa82CmTgzuTuNLP2Tm84r8M45oGUWIakhHfS7J2QirjsdTTEFJGFN4mn7DPk+WI2TMrakd9oQXdvuOY37tH5u9I1HWF5uUBoQeyXVRi8jxxMZi1vaA6/ZOV8FWd1Gh2yDvWPIVUnjv3sBUR6u40ei20ldobTvMJ2zyg8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771085163; c=relaxed/simple; bh=HUbbPFTGQfUNnwl3RyvtG+7Co0rcUIhbeGsteZCIJxI=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=EALWGiXQVYTMUNzJ4wuIVGElu4IPoLiJsr1MILLmHYSFbYwOnEn3Ofd5/nsJbXjSO/1SpPflC2VtDjjtlo2nSaa2rZSZzyH0qj2SZZm/vv8RJfuLd2OwwoHrPDRfaXdDj+t3j3JIJHN9ZF1NYirat8Gc2bxXltzhjTswKpX2/rg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0PBFa535; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="0PBFa535" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 33817C16AAE; Sat, 14 Feb 2026 16:06:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1771085162; bh=HUbbPFTGQfUNnwl3RyvtG+7Co0rcUIhbeGsteZCIJxI=; h=From:To:Cc:Subject:Date:Reply-To:From; b=0PBFa535RJWI0pc3owWwHA3jtkAR4X6NAKE6MEPYFP1Y6a9ffJ+I5p/FBDqeWecnm vxA0kj0sjFs4pjzMbjXAse3STJj+Zug5xhyjBz6azGJWFdIYXNgcxyw1dE0uMelF2r JCvKasLu3IUmlfO8+Q5I8HkkzGgGygBsM9mZIIYE= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-23152: wifi: mac80211: correctly decode TTLM with default link map Date: Sat, 14 Feb 2026 17:04:18 +0100 Message-ID: <2026021414-CVE-2026-23152-c2ae@gregkh> X-Mailer: git-send-email 2.53.0 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=2253; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=GpJ29X0T1oe88RzcIdIDLeDe5xxgWy7Y5x9gDGyjZI0=; b=owGbwMvMwCRo6H6F97bub03G02pJDJkT5vyfJu+j2Lh0aWv3gfydB1Pm673ce+svg82fWbIsi 70L9CZd6IhlYRBkYpAVU2T5so3n6P6KQ4pehranYeawMoEMYeDiFICJeL9kmMPT9sORd3/ngsv7 Pkppyu6f+F7GyJhhrkjVzZ0K10L3ad1YmdL+2fWO4LZXXgA= 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: mac80211: correctly decode TTLM with default link map TID-To-Link Mapping (TTLM) elements do not contain any link mapping presence indicator if a default mapping is used and parsing needs to be skipped. Note that access points should not explicitly report an advertised TTLM with a default mapping as that is the implied mapping if the element is not included, this is even the case when switching back to the default mapping. However, mac80211 would incorrectly parse the frame and would also read one byte beyond the end of the element. The Linux kernel CVE team has assigned CVE-2026-23152 to this issue. Affected and fixed versions =========================== Issue introduced in 6.7 with commit 702e80470a3359ce02b3f846f48f6db4ac7fd837 and fixed in 6.18.9 with commit aabc36857bd39da65fe2d047bfaf63a0a09917d4 Issue introduced in 6.7 with commit 702e80470a3359ce02b3f846f48f6db4ac7fd837 and fixed in 6.19 with commit 1eab33aa63c993685dd341e03bd5b267dd7403fa 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-2026-23152 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: net/mac80211/mlme.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/aabc36857bd39da65fe2d047bfaf63a0a09917d4 https://git.kernel.org/stable/c/1eab33aa63c993685dd341e03bd5b267dd7403fa