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 467A61AAE04 for ; Thu, 20 Jun 2024 11:17:43 +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=1718882264; cv=none; b=ucXKhlsTdJgIXapFzn+QV+EfWX4fkEXse2FHKbqnN0dkFn2gGLVoA/2WAJF2PaykhzqebKaO1IIH95FAOdWF9D/uc3xVFp8djNxu7QlF+3RqB5AorOrGOEdo0toFSvv/cNoKbmXOF4KM/ahWo7PrdzXtJadL/M+U5NfyJMd5NTc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718882264; c=relaxed/simple; bh=NAi999C8ep0CsPuBZHABsdIouItFaM84cLZRLP9/KB8=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=c7fRhhq7JN83UHN1XIYIwI1k5DvOba7gdK7V+3C6ouf9ucwTdsgKOsL6adZcRZK0UlZ7fPxglQSBX3ib6z9RFPXXLupXOOCnMP7PQYvTcRmNFNSzuU2oCYGtaB9qykD+3DITcNP3ZtL69ik/P0KAlQGzEvKQPYP7A1ZcriI6Ni4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=fAMm9dgF; 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="fAMm9dgF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 604E1C2BD10; Thu, 20 Jun 2024 11:17:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1718882263; bh=NAi999C8ep0CsPuBZHABsdIouItFaM84cLZRLP9/KB8=; h=From:To:Cc:Subject:Date:Reply-to:From; b=fAMm9dgFhKDKsvL6YdzOeyOyGBsq/T8fA0oV12vU9nUOusIhYsXbRRLF/O6sE8kVo JI4a4GfF+SRZflERto7Aw8RDvuvhXOTZPlU8UpL3guhNbKhBStbdOUAkbU5yESO/jx Rsg1jqfE2Pt3hOZtvBvvj0cmIhX3DNCR1qoTqrsQ= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2022-48748: net: bridge: vlan: fix memory leak in __allowed_ingress Date: Thu, 20 Jun 2024 13:16:28 +0200 Message-ID: <2024062004-CVE-2022-48748-3e75@gregkh> X-Mailer: git-send-email 2.45.2 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=2344; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=NAi999C8ep0CsPuBZHABsdIouItFaM84cLZRLP9/KB8=; b=kA0DAAIRMUfUDdst+ykByyZiAGZ0D3Wghey6kJFvN0DO3XgD80Lt0rQg8hS9hkktE71XnPwfy IhdBAARAgAdFiEE9LYMxb94wiFKMT3LMUfUDdst+ykFAmZ0D3UACgkQMUfUDdst+yknaACeKgbE 8F01pt/E0eF0GiQ02HjeWlIAn0U1TMmt6q78zPKbZ52u+PQhcYOc 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: bridge: vlan: fix memory leak in __allowed_ingress When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding, untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false. The Linux kernel CVE team has assigned CVE-2022-48748 to this issue. Affected and fixed versions =========================== Issue introduced in 5.6 with commit a580c76d534c and fixed in 5.10.96 with commit 446ff1fc37c7 Issue introduced in 5.6 with commit a580c76d534c and fixed in 5.15.19 with commit c5e216e880fa Issue introduced in 5.6 with commit a580c76d534c and fixed in 5.16.5 with commit 14be8d448fca Issue introduced in 5.6 with commit a580c76d534c and fixed in 5.17 with commit fd20d9738395 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-2022-48748 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/bridge/br_vlan.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/446ff1fc37c74093e81db40811a07b5a19f1d797 https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098 https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511 https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff