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 24D5D30C17B for ; Wed, 24 Jun 2026 16:33:18 +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=1782318800; cv=none; b=EyMBqc9XNm95MDYA/8+HRB1uM6c56lbkzmBfyueF1S76wEMVWQvyAyMGC5AWB0mLrpgeoL1gYS0XPc8WCqetcTnDfiCIs1WQofjZa2fDpgtR0WQEn0UJswRcz/d1E5z15vWzn/ZaoqJ/yFIli/hGCu2NrPMvIzA7j7pBz2AF4dU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782318800; c=relaxed/simple; bh=Q4vmDoIfi3bSi3peSlRtDZRkakwCb9DqgvMYnuJGVKc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=IHqF6Sm/diy32CfENNu9HOLmQV+LkRWbH0q3lbIcaVQWEE0FfwuHZgCMT7zI+3gdASjSmdEAwhPMHlO+NFFZ72asl3eOee2XFkfJVZmUx/Y+s8kFmbmLnkjnhzEeiDbMdSt610MFaXarKK4hUsi5RRZsHOQbBQ1t3Zeqj0vTuFY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=IZ/Eqyi2; 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="IZ/Eqyi2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 25FAD1F000E9; Wed, 24 Jun 2026 16:33:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1782318798; bh=tKKiCdQ7DaJTNJtktAG1bBi1Ng0nNX9NCuHXN5vyakk=; h=From:To:Cc:Subject:Date:Reply-To; b=IZ/Eqyi2Kbj3fwEnJJT56LpCC7dlnVNTuopCXr73U6pByCqsoamHdNAICGYewR9Ro YnJWGoxRS0PR6/Zg15Y3UzjRhXw16sG+xp3GjkB3RHkC0l+pm0+NwdfAubX1B6RZ8C q3tBLHwzHCIecO7OWCAxZWVb/YWtn3D2uq7/Udvc= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-52972: crypto: af_alg - Cap AEAD AD length to 0x80000000 Date: Wed, 24 Jun 2026 17:29:56 +0100 Message-ID: <2026062439-CVE-2026-52972-7d96@gregkh> X-Mailer: git-send-email 2.54.0 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=3087; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=hSkoW+GZ/doo+9jGoVia2zXzF4yVoYToaTnnqDKWBJ0=; b=owGbwMvMwCRo6H6F97bub03G02pJDFk2rJ+PLnVwLC7Ka0pPlZPQUJJjm6Jq4bH6ppqAzRsVy zM2p/o7YlkYBJkYZMUUWb5s4zm6v+KQopeh7WmYOaxMIEMYuDgFYCKTQxgWbOU6Hsq5kWlOxb9p qReWdTMzrCwMZJhfM7/2ftDdeJc7dpL3Zl3m9EqLsmcAAA== 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: crypto: af_alg - Cap AEAD AD length to 0x80000000 In order to prevent arithmetic overflows when checking the TX buffer size, cap the associated data length to 0x80000000. The Linux kernel CVE team has assigned CVE-2026-52972 to this issue. Affected and fixed versions =========================== Issue introduced in 4.1 with commit 400c40cf78da00c16e561a3a253ca272455c42ef and fixed in 5.10.258 with commit f8a5203596797f394ff3f9aa4005597a92249802 Issue introduced in 4.1 with commit 400c40cf78da00c16e561a3a253ca272455c42ef and fixed in 5.15.209 with commit a9f68d9ed38dd6e5a6c6d75b03d25c1c133e321d Issue introduced in 4.1 with commit 400c40cf78da00c16e561a3a253ca272455c42ef and fixed in 6.1.175 with commit a4fe4eb580bbc7439f649a496d4cf38415a4021c Issue introduced in 4.1 with commit 400c40cf78da00c16e561a3a253ca272455c42ef and fixed in 6.6.141 with commit e4c4a5074532eaaa14951994a3aad0d479aa7431 Issue introduced in 4.1 with commit 400c40cf78da00c16e561a3a253ca272455c42ef and fixed in 6.12.91 with commit 265ac26d1c5e17b34d497cbda1f754a1ec8552bc Issue introduced in 4.1 with commit 400c40cf78da00c16e561a3a253ca272455c42ef and fixed in 6.18.33 with commit a1c5672faf8e93e38c2deac3979cc767ca5cf918 Issue introduced in 4.1 with commit 400c40cf78da00c16e561a3a253ca272455c42ef and fixed in 7.0.10 with commit 97948906dc8e0ea84775e03e35b60a2063c70193 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-2026-52972 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: crypto/af_alg.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/f8a5203596797f394ff3f9aa4005597a92249802 https://git.kernel.org/stable/c/a9f68d9ed38dd6e5a6c6d75b03d25c1c133e321d https://git.kernel.org/stable/c/a4fe4eb580bbc7439f649a496d4cf38415a4021c https://git.kernel.org/stable/c/e4c4a5074532eaaa14951994a3aad0d479aa7431 https://git.kernel.org/stable/c/265ac26d1c5e17b34d497cbda1f754a1ec8552bc https://git.kernel.org/stable/c/a1c5672faf8e93e38c2deac3979cc767ca5cf918 https://git.kernel.org/stable/c/97948906dc8e0ea84775e03e35b60a2063c70193 https://git.kernel.org/stable/c/e4c06479d7059888adf2f22bc1ebcf053bf691a2