From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 F3F0A3A59BC for ; Sun, 19 Jul 2026 15:41:21 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784475683; cv=none; b=bNoAictOTKK4or2Vk/QgQy6IGJ0xTjgxfHimuDeBivySCafbz3Qjytk476Rt3NsVhSkMjV/MaMVal8ED6EOujB5HjPGUYP/EjTQD7IKoaK9mtSeMzupvCfWgGB4ZSijYjLTJ9ZbNRZLljZXrsnKJ2JRUnJmxrxjjIOVICjahT2w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784475683; c=relaxed/simple; bh=ZmKW1CacVLNkPef0rHTDPW1nfSMr420vturBiI76m1s=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=EXlgr03ioNhg6heqPbFoLvxzalIkYphZC+fJCBVqGpoOaovuvMwBWxzboqeGbf6tSAvvOGgp2kBQpdCzF8WhRgq8NctbuW/YODUcUIJK5OwapdHmzBI2yKQrGI/fdIFzpcAWHXjY/1pQIP++EDckcPQy3+6PFGgjow9lu/okjdg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=Gw7p/Wke; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="Gw7p/Wke" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 067351F000E9; Sun, 19 Jul 2026 15:41:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784475681; bh=nGXWfNu89vCbhM8WfpWhCm+LWmUTdOtNRXXPsA1Lliw=; h=From:To:Cc:Subject:Date:Reply-To; b=Gw7p/WkekNY0iBd3USBqpSMt/CVj821z3tPgiT2k/TouwrxqFVoRucy0sW2a7xxMd hTcQv7o6M4ylxgOHogloZRoKxOVZTzAZSYH+hPyHFuwwKa7d15j3ShzTp1XJzEuBxN mUanDYKQabvo558ZSOyo7Uv2rYVGYwcx5X1So1N8= From: Greg Kroah-Hartman To: linux-cve-announce@vger.kernel.org Cc: Greg Kroah-Hartman Subject: CVE-2026-64019: nvme-pci: fix dma mapping leak on data setup error Date: Sun, 19 Jul 2026 17:38:01 +0200 Message-ID: <2026071901-CVE-2026-64019-b55d@gregkh> X-Mailer: git-send-email 2.55.0 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=2190; i=gregkh@linuxfoundation.org; h=from:subject:message-id; bh=YvozwgZ/6fm9VyQK8Nf/6psxylTDn5pcDdA0ws9XvPc=; b=owGbwMvMwCRo6H6F97bub03G02pJDFkx7yPfuojcdlhhfJjN6/WEBb3BR11VZZdum2F8dmPMO 7baXaK2HbEsDIJMDLJiiixftvEc3V9xSNHL0PY0zBxWJpAhDFycAjCRRREM8xNkC298uu3fqH7n /weP9ISfUzXOf2OYX6BzQNZT6WBD2N7nLTn8go/d+TRDAA== 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: nvme-pci: fix dma mapping leak on data setup error We're leaking the initial DMA mapping during iteration if we fail to allocate the tracking descriptor for both PRP and SGL. Unmap the iterator directly; we can't use the existing unmap helper because it depends on the tracking descriptor being successfully allocated, so a new one for an in-use iterator is provided. The mappings were also leaking when the driver detects an invalid bio_vec when mapping PRPs, so fix that too. The Linux kernel CVE team has assigned CVE-2026-64019 to this issue. Affected and fixed versions =========================== Issue introduced in 6.17 with commit 7ce3c1dd78fca86ea8b9aee370db10c7a8cfc3c2 and fixed in 7.0.11 with commit e50db059ec8e63bc50b1cc039e2502cb5ea75a70 Issue introduced in 6.17 with commit 7ce3c1dd78fca86ea8b9aee370db10c7a8cfc3c2 and fixed in 7.1 with commit 1bf86336e4b6cf40873fda47a7fe191446864937 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-2026-64019 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/nvme/host/pci.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/e50db059ec8e63bc50b1cc039e2502cb5ea75a70 https://git.kernel.org/stable/c/1bf86336e4b6cf40873fda47a7fe191446864937