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 C9FDD1CA94 for ; Sun, 19 May 2024 08:37:25 +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=1716107845; cv=none; b=pOnIsTRkJi6zuxWBa+dnxVotDz8vCkq8xKrLx4fvCfZ6jw6B4ZXwbuYxl1tLXQccyHB1kChNxLmn0aX8PhPKKglFyBzKOYHx1e2e4Jn/9iIvy7ZoXpXNyuCI8JLDJo86SVEq1gdQbvsNXpARIrYOj3P0KB3ZYg6PszvjhIpQ8SA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716107845; c=relaxed/simple; bh=R/SYP1PgUE/VgqxZAhTe7zaX/EUi7HkrnNbzMb6jH5s=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=N1ZdpfNCxZUWcniZjBc53lckJ5YX6K/STxtNEE7J+R4NVlh7NUgkfTujKqpxtJa2f18DMROwGhj4ZdkpuS5A8pFGvV31YWOF/+EVClihA5Ggq/F/iGLuUllaJNbTMgjV+CEUkuq7iVEdZyYkvQsCg0xOcDuJjYqM82v6dpteX6M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=fPBSxsIo; 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="fPBSxsIo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F2148C32781; Sun, 19 May 2024 08:37:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1716107845; bh=R/SYP1PgUE/VgqxZAhTe7zaX/EUi7HkrnNbzMb6jH5s=; h=From:To:Cc:Subject:Date:Reply-to:From; b=fPBSxsIoxNqdn7Tepnm0lRMlrADrBamxzQIAnac5D2RZzOC8y9wKqA7wTmhOjnlhA H83EgwUrL8/2ao1QecRgfmf5xIneZUgRynTVCes5zsrcXsWhROidtC2oWGX4iOxwe3 KL0duITatMj/SJwNwk9rjJDU9ZUwAarwFIPVN0Fo= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2024-35908: tls: get psock ref after taking rxlock to avoid leak Date: Sun, 19 May 2024 10:35:22 +0200 Message-ID: <2024051955-CVE-2024-35908-e78a@gregkh> X-Mailer: git-send-email 2.45.1 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=2265; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=R/SYP1PgUE/VgqxZAhTe7zaX/EUi7HkrnNbzMb6jH5s=; b=owGbwMvMwCRo6H6F97bub03G02pJDGmeO9eHVb22qnA69U7wm/8r66AnT5u0A+UvnlP48JjT1 J+5ht+rI5aFQZCJQVZMkeXLNp6j+ysOKXoZ2p6GmcPKBDKEgYtTACZiwsWw4DID53IZ4+Czk34Y 6j77p19/a//aLwzzs9/YHv5c/colb8+q6a+zZqysd+PcDwA= 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: tls: get psock ref after taking rxlock to avoid leak At the start of tls_sw_recvmsg, we take a reference on the psock, and then call tls_rx_reader_lock. If that fails, we return directly without releasing the reference. Instead of adding a new label, just take the reference after locking has succeeded, since we don't need it before. The Linux kernel CVE team has assigned CVE-2024-35908 to this issue. Affected and fixed versions =========================== Issue introduced in 6.0 with commit 4cbc325ed6b4 and fixed in 6.1.85 with commit 30fabe50a7ac Issue introduced in 6.0 with commit 4cbc325ed6b4 and fixed in 6.6.26 with commit f1b7f14130d7 Issue introduced in 6.0 with commit 4cbc325ed6b4 and fixed in 6.8.5 with commit b565d294e3d5 Issue introduced in 6.0 with commit 4cbc325ed6b4 and fixed in 6.9 with commit 417e91e85609 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-2024-35908 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/tls/tls_sw.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/30fabe50a7ace3e9d57cf7f9288f33ea408491c8 https://git.kernel.org/stable/c/f1b7f14130d782433bc98c1e1e41ce6b4d4c3096 https://git.kernel.org/stable/c/b565d294e3d5aa809566a4d819835da11997d8b3 https://git.kernel.org/stable/c/417e91e856099e9b8a42a2520e2255e6afe024be