{"id":"CVE-2026-93782","revision":"f100ef9066ac46c0a486ed9a205bb79d","records":[{"revision":"f100ef9066ac46c0a486ed9a205bb79d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-93782","aliases":[],"title":"vhost-scsi: flush backend after device ioctls","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvhost-scsi: flush backend after device ioctls\n\nvhost-scsi translates guest response descriptors into userspace iovecs\nwhen commands are submitted.  Target-core completes those commands\nasynchronously, so VHOST_SET_MEM_TABLE can replace the memory table while\nan in-flight command still retains response iovecs translated through the\nold table.\n\nIf the old mapping is reused after VHOST_SET_MEM_TABLE returns, command\ncompletion can write the response to an unrelated userspace object.\n\nFlush the vhost-scsi backend after vhost_dev_ioctl() handles a device\nioctl.  This waits for in-flight commands that can still use the old\nresponse iovecs before the ioctl returns.","state":0,"publishedAt":"2026-09-24T16:02:14.457+00:00","modifiedAt":"2026-10-03T10:57:16.951+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/vhost/scsi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"057cbf49a1f08297877e46c82f707b1bfea806a8\",\n                            \"lessThan\": \"6436411203d8c702ffc055700f1a6bde488ff681\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"057cbf49a1f08297877e46c82f707b1bfea806a8\",\n                            \"lessThan\": \"cec088285adcc7ae23c119b6bbdb22270dc2de8f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"057cbf49a1f08297877e46c82f707b1bfea806a8\",\n                            \"lessThan\": \"e0bf6bed528693a6b32439ab122b34a34b66d96f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"057cbf49a1f08297877e46c82f707b1bfea806a8\",\n                            \"lessThan\": \"be2636e1b21fe860db918152abf2932638d06ed7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"057cbf49a1f08297877e46c82f707b1bfea806a8\",\n                            \"lessThan\": \"981c97d09c6b9560bb12dcc41f11ce59b1a48e97\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"057cbf49a1f08297877e46c82f707b1bfea806a8\",\n                            \"lessThan\": \"6c1b802e36b05ebd9d41686c4dce6f06966af469\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"057cbf49a1f08297877e46c82f707b1bfea806a8\",\n                            \"lessThan\": \"22598f55a4c2b510b3df5e69e563387a963222ae\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/vhost/scsi.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"3.6\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.6\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.271\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.222\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.189\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.158\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.111\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.53\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/6436411203d8c702ffc055700f1a6bde488ff681","https://git.kernel.org/stable/c/cec088285adcc7ae23c119b6bbdb22270dc2de8f","https://git.kernel.org/stable/c/e0bf6bed528693a6b32439ab122b34a34b66d96f","https://git.kernel.org/stable/c/be2636e1b21fe860db918152abf2932638d06ed7","https://git.kernel.org/stable/c/981c97d09c6b9560bb12dcc41f11ce59b1a48e97","https://git.kernel.org/stable/c/6c1b802e36b05ebd9d41686c4dce6f06966af469","https://git.kernel.org/stable/c/22598f55a4c2b510b3df5e69e563387a963222ae"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-93782","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-93782","identifiers":["CVE-2026-93782"]},"retained":false,"historicalAffected":[]}],"coverage":[]}