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 34E7B21639F for ; Wed, 26 Feb 2025 02:13:30 +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=1740536010; cv=none; b=U+OnRz6vH6qfygvQftEQMeTGd6K94pPtefsyptGlYN36z61D+mIy394q0m2kxDnJq7u5Bo895s7REvb/fyebMs0tpcG/o+TvRM4y1rBwJfKLaUPAyBtVlmtxZN/vLApg4GJIQJqI8jglkfv98YOacMSe4ofZotWeOnNOnGSNVmA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1740536010; c=relaxed/simple; bh=sGqT0XVI43Z8ebbV2zVbontvzr1un/Tq5KIEH8KJIgE=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=a7HtuggUHzGTE5XJSNP9FN2nCbdtn8+K1e07mCIwJvYqansivdcaoaD4+d5VxwOoQGB/wrsDpu0jUsdaHsfmRUVaHggZUNOU43XtFaVozAJp+hirgk43I+yE2w7cYGn5ezQO2LfLrqr9rYXBtcpByPXGHxguo5DyoLYKIR2f9ho= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=wmulGljd; 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="wmulGljd" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EFDB5C4CEDD; Wed, 26 Feb 2025 02:13:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1740536010; bh=sGqT0XVI43Z8ebbV2zVbontvzr1un/Tq5KIEH8KJIgE=; h=From:To:Cc:Subject:Date:Reply-to:From; b=wmulGljd08eJdTmNutG5mfYaH3mplYx5f+2iiPlne8ThWg7S/580sl5e7bAgsCTxQ j7+QKTe6J5CmkbAJ8gCpPdN8Ic4OkXGdOEhWnGuRsg0P0G5dZZrZ3HxY5SnKz8m6oX MsZK44trdJFAVpf2LDKJswBDDD/RzmTGZzctu6wA= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2022-49367: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register Date: Wed, 26 Feb 2025 03:10:41 +0100 Message-ID: <2025022645-CVE-2022-49367-3b2e@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=3447; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=sGqT0XVI43Z8ebbV2zVbontvzr1un/Tq5KIEH8KJIgE=; b=owGbwMvMwCRo6H6F97bub03G02pJDOn7yl/OjzPZtNCQ71LxDJPG2BML/UO/Vp6Sdbz5aNWLv b4y+1fN6ohlYRBkYpAVU2T5so3n6P6KQ4pehranYeawMoEMYeDiFICJTCtnWLCR7+LL3PuOx35u TXhU8kFFyraB9zPDgksSM389vrAhUM2uaPGNc11yP/IO9gEA 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: net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register of_get_child_by_name() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. mv88e6xxx_mdio_register() pass the device node to of_mdiobus_register(). We don't need the device node after it. Add missing of_node_put() to avoid refcount leak. The Linux kernel CVE team has assigned CVE-2022-49367 to this issue. Affected and fixed versions =========================== Issue introduced in 4.11 with commit a3c53be55c955b7150cda17874c3fcb4eeb97a89 and fixed in 4.14.283 with commit dc1cf8c6f9793546696fded437a5b4c84944c48b Issue introduced in 4.11 with commit a3c53be55c955b7150cda17874c3fcb4eeb97a89 and fixed in 4.19.247 with commit 86c3c5f8e4bd1325e24f6fba9017cade29933377 Issue introduced in 4.11 with commit a3c53be55c955b7150cda17874c3fcb4eeb97a89 and fixed in 5.4.198 with commit a101793994c0a14c70bb4e44c7fda597eeebba0a Issue introduced in 4.11 with commit a3c53be55c955b7150cda17874c3fcb4eeb97a89 and fixed in 5.10.122 with commit 42658e47f1abbbe592007d3ba303de466114d0bb Issue introduced in 4.11 with commit a3c53be55c955b7150cda17874c3fcb4eeb97a89 and fixed in 5.15.47 with commit c1df9cb756e5a9ba1841648c44ee5d92306b9c65 Issue introduced in 4.11 with commit a3c53be55c955b7150cda17874c3fcb4eeb97a89 and fixed in 5.17.15 with commit e0d763d0c7665c7897e4f5a0847ab0c82543345f Issue introduced in 4.11 with commit a3c53be55c955b7150cda17874c3fcb4eeb97a89 and fixed in 5.18.4 with commit 8a1a1255152da4fb934290e7ababc66f24985520 Issue introduced in 4.11 with commit a3c53be55c955b7150cda17874c3fcb4eeb97a89 and fixed in 5.19 with commit 02ded5a173619b11728b8bf75a3fd995a2c1ff28 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-2022-49367 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: drivers/net/dsa/mv88e6xxx/chip.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/dc1cf8c6f9793546696fded437a5b4c84944c48b https://git.kernel.org/stable/c/86c3c5f8e4bd1325e24f6fba9017cade29933377 https://git.kernel.org/stable/c/a101793994c0a14c70bb4e44c7fda597eeebba0a https://git.kernel.org/stable/c/42658e47f1abbbe592007d3ba303de466114d0bb https://git.kernel.org/stable/c/c1df9cb756e5a9ba1841648c44ee5d92306b9c65 https://git.kernel.org/stable/c/e0d763d0c7665c7897e4f5a0847ab0c82543345f https://git.kernel.org/stable/c/8a1a1255152da4fb934290e7ababc66f24985520 https://git.kernel.org/stable/c/02ded5a173619b11728b8bf75a3fd995a2c1ff28