{"id":"CVE-2026-90324","revision":"6414c7fa08e340dd97a876e2535b596b","records":[{"revision":"6414c7fa08e340dd97a876e2535b596b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90324","aliases":[],"title":"ublk: check import_ubuf() return value","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nublk: check import_ubuf() return value\n\nimport_ubuf() can fail if the address range (provided by the userspace\nublk server) is outside the allowed user address space. Return that 0\nbytes were copied if import_ubuf() fails rather than passing an\nuninitialized struct iov_iter to ublk_copy_user_pages().","state":0,"publishedAt":"2026-09-17T16:08:40.077+00:00","modifiedAt":"2026-10-21T12:50:58.953+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/block/ublk_drv.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"981f95a571e3ca20a496c0b77dbf6b06039c6648\",\n                            \"lessThan\": \"7f97c762b5f6e0005c5c7d040ded73bf7fb3587e\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"981f95a571e3ca20a496c0b77dbf6b06039c6648\",\n                            \"lessThan\": \"27ff6e8703f7a7160c728501da2f8ef8e7bb6b2f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"981f95a571e3ca20a496c0b77dbf6b06039c6648\",\n                            \"lessThan\": \"0121c84adb6a4cd6f7560b5895bd88f9899bbc1f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"981f95a571e3ca20a496c0b77dbf6b06039c6648\",\n                            \"lessThan\": \"5ac6019cb78e98c9608fda72726b36ddf8474dd7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"981f95a571e3ca20a496c0b77dbf6b06039c6648\",\n                            \"lessThan\": \"3831568792af75b6523fa93bb91560e29189cf55\",\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/block/ublk_drv.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.5\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.5\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.160\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.114\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\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:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/7f97c762b5f6e0005c5c7d040ded73bf7fb3587e","https://git.kernel.org/stable/c/27ff6e8703f7a7160c728501da2f8ef8e7bb6b2f","https://git.kernel.org/stable/c/0121c84adb6a4cd6f7560b5895bd88f9899bbc1f","https://git.kernel.org/stable/c/5ac6019cb78e98c9608fda72726b36ddf8474dd7","https://git.kernel.org/stable/c/3831568792af75b6523fa93bb91560e29189cf55"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90324","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90324","identifiers":["CVE-2026-90324"]},"retained":false,"historicalAffected":[]}],"coverage":[]}