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 E66E243ADC for ; Sat, 2 Mar 2024 22:00:32 +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=1709416833; cv=none; b=qS9svXwKxFNzL9uo6FV/6KYycU3ZAAB3rxkQza5/NfhG0uljH4t59l6207QMRy75SqqEOAAF7KeBit0KrY8VA5LCb476e0BHRsVac7xiNH3rBMjs4cy1XS1EdA+7cfadg8BP1TtPNWsmJS+13MeZFRoOyt5FkYVGc9HEBxfTBzg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709416833; c=relaxed/simple; bh=YWM+Q1Lu1tpitgmgohW3HJ+2FXw7etaGxlPtfr7L10c=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=BAsc9EP64YXTYdkw92kVoXWg2S41y/S9Sv9g2MdVlD8bBR9velYSCSsY/xa9Gjyn50B7xhyxCJeoq+MhbWU5gzErvu2Nin+OKTNcYETjt/KNSVyvTYfv7DVyemJQf2dP7TOi+aeZcVIk3J9RqAn4vHcaRmMlhcRTgN+E614pXoc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=FSyNs5Me; 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="FSyNs5Me" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 68A5AC433F1; Sat, 2 Mar 2024 22:00:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1709416832; bh=YWM+Q1Lu1tpitgmgohW3HJ+2FXw7etaGxlPtfr7L10c=; h=From:To:Cc:Subject:Date:Reply-to:From; b=FSyNs5MeiytWrjHL9fJrBvp9xPiU3DQ1Y0pOkqrUW7aGTxwnHUdbWtX56BBtMnPA8 45mnJs/ZKO/4LLmPwm4DDqFleZ1pVdxlhAgh3ZZo2SVgKOj+QbXw0nKOdcmM7KAg2v izGqxpngrH/NG18cnhAPCA0aS4ZsjQGSJi8KuYH4= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2023-52575: x86/srso: Fix SBPB enablement for spec_rstack_overflow=off Date: Sat, 2 Mar 2024 23:00:09 +0100 Message-ID: <2024030256-CVE-2023-52575-34bf@gregkh> X-Mailer: git-send-email 2.44.0 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=2294; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=YWM+Q1Lu1tpitgmgohW3HJ+2FXw7etaGxlPtfr7L10c=; b=owGbwMvMwCRo6H6F97bub03G02pJDKmPF8YUrpyYm7Hp7plZ+xrDlMzlO9U4Zkm/c29+5NUhq C3095h1RywLgyATg6yYIsuXbTxH91ccUvQytD0NM4eVCWQIAxenAExEk5dhNusXMbv5Z4vt3//+ EzD//TSFHYc36DMsWMedXVi32J/t3/8JrRKFL50cTpeWAgA= 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: x86/srso: Fix SBPB enablement for spec_rstack_overflow=off If the user has requested no SRSO mitigation, other mitigations can use the lighter-weight SBPB instead of IBPB. The Linux kernel CVE team has assigned CVE-2023-52575 to this issue. Affected and fixed versions =========================== Issue introduced in 5.10.189 with commit 8457fb5740b1 and fixed in 5.10.198 with commit ae806c74c063 Issue introduced in 5.15.125 with commit 153f9a7b02d4 and fixed in 5.15.134 with commit 13ea4b92e875 Issue introduced in 6.1.44 with commit 4f25355540ad and fixed in 6.1.56 with commit adbcec23c842 Issue introduced in 6.5 with commit fb3bd914b3ec and fixed in 6.5.6 with commit e3cb8b2c391b Issue introduced in 6.5 with commit fb3bd914b3ec and fixed in 6.6 with commit 01b057b2f4cc Please see https://www.kernel.org or 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-2023-52575 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: arch/x86/kernel/cpu/bugs.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/ae806c74c0634b0c23855066d8ba28d850fd1260 https://git.kernel.org/stable/c/13ea4b92e8759d2f6c330a73cde31ad9c313021b https://git.kernel.org/stable/c/adbcec23c8423e3d5df1839c5ae91599dcf703cb https://git.kernel.org/stable/c/e3cb8b2c391b1f287eb76df4ba37880f4ea56d8a https://git.kernel.org/stable/c/01b057b2f4cc2d905a0bd92195657dbd9a7005ab