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 9D761348C6D for ; Sat, 15 Aug 2026 06:08:34 +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=1786774115; cv=none; b=s/QlRilpJIC8+tvhyzlXvJO3j9RXLTovDSvVni/JA3pxOVnP7BORdcAbZf8JKVBHWxqvHp+15XUpOePoVlcvns+SI/PqSuUjvDHLKUz+KdkL/2rUFwyuppKieEoC0jCWHOZdwmsntYwA5Az85Ke0ye9SKxVRkvOdN7E0hGdbED8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786774115; c=relaxed/simple; bh=Un/wq0RdO6MALPu9vJPtzXrntP0PIR9V+cAEytBFAtw=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=sDEytq3cL186czmzVj2F+9HjK4F5Cg3cYCGYpatkAmlYI5jffUWt/HCb89Z94bL07XOd9Cgg4ZhfEdfmkvr9FpPmOHEa6AoZJuvz8pKJdspcqZ5zppByq6m8BsYAWDbexWJo2ssF35D/8dzcDXFgzM+lH+2AHyYBkSOkk+XIPgQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=eQ90b066; 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="eQ90b066" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 01B0C1F000E9; Sat, 15 Aug 2026 06:08:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786774114; bh=VXxQtnglhnPEgraqxCijNm0/K0MYZ28v0COCI4LU7qo=; h=From:To:Cc:Subject:Date:Reply-To; b=eQ90b066sVDxxE0qBMApU6U/8KH8n1TG+nHPUYs/kJglpTs9JFZZIsHTtHIh9YpfH YfzYjXE97YEDs2++OyeKzX5NIhxTnTVhAPV2S2bR3QfnFb3a4auWXH9iPDJUwLalrT Tvr+6megt/6JWNciWRRvRDpSyfOIfjZl4XCkT9LM= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-72041: espintcp: use sk_msg_free_partial to fix partial send Date: Sat, 15 Aug 2026 15:02:00 +0900 Message-ID: <2026081513-CVE-2026-72041-6717@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=2678; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=crpKUY7+20k25zgEs+7IewjW9rT5zcNbOQUEw+JOD58=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkNDCtr9j5Yb3F2wVHPK+c7Nwn8/vxbn2vLYdunng+8/ KMeX1rt2BHLwiDIxCArpsjyZRvP0f0VhxS9DG1Pw8xhZQIZwsDFKQATcTNjmKe1jYvtis6mRXPF yiLSvsw8y7Hb6QLDPNWkMoV9SdMd/0mdnScl8IO5qKQzHAA= 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: espintcp: use sk_msg_free_partial to fix partial send sk_msg_free_partial() ensures consistency of the skmsg at every iteration, without having to manually handle uncharges and offsets. This simplifies the code, and fixes some bugs in skmsg accounting when we don't send the full contents. The Linux kernel CVE team has assigned CVE-2026-72041 to this issue. Affected and fixed versions =========================== Issue introduced in 5.6 with commit e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 and fixed in 6.6.145 with commit 54d73f18f8919735f4d04d6f43374f75756c0180 Issue introduced in 5.6 with commit e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 and fixed in 6.12.97 with commit 14c0b42c8a2cd9b5361bbff45b52f69c62c6a286 Issue introduced in 5.6 with commit e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 and fixed in 6.18.40 with commit a66d45e0ce6d73cd79962d422388e61bfaf0cb50 Issue introduced in 5.6 with commit e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 and fixed in 7.1.5 with commit a338ce41bc933d8f74c39d9b3b6f1d8ca53d9714 Issue introduced in 5.6 with commit e27cca96cd68fa2c6814c90f9a1cfd36bb68c593 and fixed in 7.2-rc1 with commit 007800408002d871f5699bdb944f985896730b8f 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-2026-72041 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/xfrm/espintcp.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/54d73f18f8919735f4d04d6f43374f75756c0180 https://git.kernel.org/stable/c/14c0b42c8a2cd9b5361bbff45b52f69c62c6a286 https://git.kernel.org/stable/c/a66d45e0ce6d73cd79962d422388e61bfaf0cb50 https://git.kernel.org/stable/c/a338ce41bc933d8f74c39d9b3b6f1d8ca53d9714 https://git.kernel.org/stable/c/007800408002d871f5699bdb944f985896730b8f