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 DD9DC219A74 for ; Wed, 26 Feb 2025 02:24:09 +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=1740536649; cv=none; b=O+n4zdXjn0oQ5IYDta1dXoOxE7DXU3oU7edu5GIE0IhwLiGloklJaLt06Q+KDQLdUcoT9zVjiYNgkTPvh2zU1BJoy7sSgJHTW7in4bUlkGTmwDVarIcMZHnDKD6cvN5wMkbtba6TS1e1Rwv0G8B/POKP7GkLqbC47/8EN17qzdU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740536649; c=relaxed/simple; bh=k8KOm7Ry3MCwfIpikaEMckLnZTuJwM5UE+YaLRmYd6I=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=bxSkAH2+nCNqC+cJuVrfYnXBU3BtfWqJY2OczKW233aGmEV7WN8+Udwp6WC9+EgqH96evBXLqHQQ54lYzglVP94YXUnbdOrKCkFt0vJ5CGrYBlzGkQVdewpWg19shBHpbjBg4j1XBpIGknmvETtIaOWMtgrlMs+HzF1sRf+/jiY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OQtkj28u; 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="OQtkj28u" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 513EEC4CEDD; Wed, 26 Feb 2025 02:24:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740536649; bh=k8KOm7Ry3MCwfIpikaEMckLnZTuJwM5UE+YaLRmYd6I=; h=From:To:Cc:Subject:Date:Reply-to:From; b=OQtkj28uQh7lJPFnHRNaVmx/OIGTSXo6SZD4GXy1c555nLHHc2J/CGnMlka5BMzrr SNmZq3a2QUjoO8ShYmhlNJfEQK8X4gcEdxLXXjzuodji+aOogpn902MwqV3ctXCXIQ I5I7zrlJhHVwCclkElGkk4L2DuL3LbcCvYHm7Czs= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2022-49597: tcp: Fix data-races around sysctl_tcp_base_mss. Date: Wed, 26 Feb 2025 03:22:40 +0100 Message-ID: <2025022611-CVE-2022-49597-2087@gregkh> X-Mailer: git-send-email 2.48.1 Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Reply-to: , X-Developer-Signature: v=1; a=openpgp-sha256; l=2590; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=k8KOm7Ry3MCwfIpikaEMckLnZTuJwM5UE+YaLRmYd6I=; b=owGbwMvMwCRo6H6F97bub03G02pJDOn7qi7fmWX8/m/FQ42OVgZ1WZ4Ld07qTbs11d/LLOHC2 rwpCdHBHbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjCR7XsYFhx1mnGUbeftd6dZ 2wT9Kt0fLajhr2NYsPbMB9aMnZseG+qs/+3fIXV/69srrwE= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit Description =========== In the Linux kernel, the following vulnerability has been resolved: tcp: Fix data-races around sysctl_tcp_base_mss. While reading sysctl_tcp_base_mss, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers. The Linux kernel CVE team has assigned CVE-2022-49597 to this issue. Affected and fixed versions =========================== Issue introduced in 2.6.17 with commit 5d424d5a674f782d0659a3b66d951f412901faee and fixed in 5.4.208 with commit 30b73edc1d2459ba2c71cb58fbf84a1a6e640fbf Issue introduced in 2.6.17 with commit 5d424d5a674f782d0659a3b66d951f412901faee and fixed in 5.10.134 with commit 514d2254c7b8aa2d257f5ffc79f0d96be2d6bfda Issue introduced in 2.6.17 with commit 5d424d5a674f782d0659a3b66d951f412901faee and fixed in 5.15.58 with commit 4d7dea651b7fe0322be95054f64e3711afccc543 Issue introduced in 2.6.17 with commit 5d424d5a674f782d0659a3b66d951f412901faee and fixed in 5.18.15 with commit 9ca18116bc16ec31b9a3ce28ea1350badfa36128 Issue introduced in 2.6.17 with commit 5d424d5a674f782d0659a3b66d951f412901faee and fixed in 5.19 with commit 88d78bc097cd8ebc6541e93316c9d9bf651b13e8 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-2022-49597 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/ipv4/tcp_output.c net/ipv4/tcp_timer.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/30b73edc1d2459ba2c71cb58fbf84a1a6e640fbf https://git.kernel.org/stable/c/514d2254c7b8aa2d257f5ffc79f0d96be2d6bfda https://git.kernel.org/stable/c/4d7dea651b7fe0322be95054f64e3711afccc543 https://git.kernel.org/stable/c/9ca18116bc16ec31b9a3ce28ea1350badfa36128 https://git.kernel.org/stable/c/88d78bc097cd8ebc6541e93316c9d9bf651b13e8