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 BEF52378D70 for ; Fri, 8 May 2026 13:26:31 +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=1778246791; cv=none; b=jWLVALucUhXMxA8wx3S+xLfWYCQQ7zpYUuRiaGZCIrt5FvELFVdWHej+V9tdz5cNFMUQFNkpN9R8CSH2VUXEXZxK4GdMBn7nh7BYqkMsm5FwLUxTMYe2yGTt8i90DZuxQextp06QcdGnw/j2SHoJ+wLJrEwFb5nFBAEWpGx6/0c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778246791; c=relaxed/simple; bh=eH9Q3k0O8fA7gGDl/7DjpDsyE691jus9iR5B0OLSH7w=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=bkUqF1ujTwl8bxttkaOrugq9FcKrPQbeSF3CiHUDEO78VjPEW4dHHzMIIwRyCXkraC7im+xui7fbv0ylgPhCPk8X/CRd56xkX3MUVXqnzOlonFLYL2KcPbxfO/dn7+6OyQ+vdjhXY+e1PtGOB0cZ+GfUcGZT9OPAlYNovVdm6NI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=quQ3dG9F; 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="quQ3dG9F" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 86531C2BCB0; Fri, 8 May 2026 13:26:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1778246790; bh=eH9Q3k0O8fA7gGDl/7DjpDsyE691jus9iR5B0OLSH7w=; h=From:To:Cc:Subject:Date:Reply-To:From; b=quQ3dG9FfMHcpUwT9s1CYHPiUUIyPQQl/oy9dHMYOFnShJrrDGwA80jRMPoC3OjsG V8tCxr2dd+czSkIk3UsU5l8XczV6Z6/tj+H81fHB53IgYwShCx2e2+dKgIXMUNf8Qq +JHIG8W8le8LF72GHkkDC+a758kSBH39nRYCb9YU= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-43317: most: core: fix leak on early registration failure Date: Fri, 8 May 2026 15:26:20 +0200 Message-ID: <2026050818-CVE-2026-43317-a9bf@gregkh> X-Mailer: git-send-email 2.54.0 Reply-To: , Precedence: bulk X-Mailing-List: linux-cve-announce@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=2478; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=p8B9HbFyo952XqTurXO0Rr3YM+xwsjN/DctUDw+VDzA=; b=owGbwMvMwCRo6H6F97bub03G02pJDJl/n1TJsrlmng2+4j19+kpr67/p8XErdD1/L9t0+OCOx sCGu0VFHbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjARlfsMCyadPpfZc/mMi38H 79I/LDv/ar5OTGCYH5owWdIm7IV2SNDJ9KDyDbkP3k89CgA= X-Developer-Key: i=gregkh@linuxfoundation.org; a=openpgp; fpr=F4B60CC5BF78C2214A313DCB3147D40DDB2DFB29 Content-Transfer-Encoding: 8bit From: Greg Kroah-Hartman Description =========== In the Linux kernel, the following vulnerability has been resolved: most: core: fix leak on early registration failure A recent commit fixed a resource leak on early registration failures but for some reason left out the first error path which still leaks the resources associated with the interface. Fix up also the first error path so that the interface is always released on errors. The Linux kernel CVE team has assigned CVE-2026-43317 to this issue. Affected and fixed versions =========================== Issue introduced in 5.6 with commit 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c and fixed in 6.12.75 with commit bbfe49ffb892bddf32c34bea95b7ff0fc30affb5 Issue introduced in 5.6 with commit 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c and fixed in 6.18.16 with commit f1ba620f9e8d7291f80c0554e4b820f5fb30e819 Issue introduced in 5.6 with commit 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c and fixed in 6.19.6 with commit 5fd4396c2e48e90cc2597a86c18227d56ea845f0 Issue introduced in 5.6 with commit 723de0f9171eeb49a3ae98cae82ebbbb992b3a7c and fixed in 7.0 with commit 2c198c272f9c9213b0fdf6b4a879f445c574f416 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-2026-43317 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/most/core.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/bbfe49ffb892bddf32c34bea95b7ff0fc30affb5 https://git.kernel.org/stable/c/f1ba620f9e8d7291f80c0554e4b820f5fb30e819 https://git.kernel.org/stable/c/5fd4396c2e48e90cc2597a86c18227d56ea845f0 https://git.kernel.org/stable/c/2c198c272f9c9213b0fdf6b4a879f445c574f416