{"id":"CVE-2026-74313","revision":"6b58bb2267d64cd38a57999bdabe3d6d","records":[{"revision":"6b58bb2267d64cd38a57999bdabe3d6d","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-74313","aliases":[],"title":"vduse: hold vduse_lock across IDR lookup in open path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvduse: hold vduse_lock across IDR lookup in open path\n\nvduse_dev_open() looks up struct vduse_dev through the IDR and then\nacquires dev->lock only after vduse_lock has been dropped.\n\nThis leaves a window where a concurrent VDUSE_DESTROY_DEV can remove the\nsame object from the IDR and free it before the open path locks the\ndevice, leading to a use-after-free.\n\nClose this race by keeping vduse_lock held until dev->lock has been\nacquired in the open path, matching the lock ordering already used by\nthe destroy path.","state":0,"publishedAt":"2026-08-15T05:58:12.058+00:00","modifiedAt":"2026-10-16T18:55:32.347+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/vdpa/vdpa_user/vduse_dev.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"c8a6153b6c59d95c0e091f053f6f180952ade91e\",\n                            \"lessThan\": \"35483c5306e09b3190ff937089d404a78012695c\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c8a6153b6c59d95c0e091f053f6f180952ade91e\",\n                            \"lessThan\": \"5c1560be8aa6849356455af67518d35c551cbd95\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c8a6153b6c59d95c0e091f053f6f180952ade91e\",\n                            \"lessThan\": \"93ed4692f2299a40346025979f40e4a9b7b33af7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c8a6153b6c59d95c0e091f053f6f180952ade91e\",\n                            \"lessThan\": \"d94e2947203aead590fd63f667d316d4475d65af\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c8a6153b6c59d95c0e091f053f6f180952ade91e\",\n                            \"lessThan\": \"a2d0a57538fd0b3b3ab75d64bb64f4cd2fab13a2\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c8a6153b6c59d95c0e091f053f6f180952ade91e\",\n                            \"lessThan\": \"79e12c891940b0c4c75881b7fd82a8cbb8ac97be\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"c8a6153b6c59d95c0e091f053f6f180952ade91e\",\n                            \"lessThan\": \"e440e077748939839d9f76e24383b76b785f80ce\",\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/vdpa/vdpa_user/vduse_dev.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.15\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.15\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.212\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.178\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.145\",\n                            \"lessThanOrEqual\": \"6.6.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.97\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.40\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.1.5\",\n                            \"lessThanOrEqual\": \"7.1.*\",\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:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/35483c5306e09b3190ff937089d404a78012695c","https://git.kernel.org/stable/c/5c1560be8aa6849356455af67518d35c551cbd95","https://git.kernel.org/stable/c/93ed4692f2299a40346025979f40e4a9b7b33af7","https://git.kernel.org/stable/c/d94e2947203aead590fd63f667d316d4475d65af","https://git.kernel.org/stable/c/a2d0a57538fd0b3b3ab75d64bb64f4cd2fab13a2","https://git.kernel.org/stable/c/79e12c891940b0c4c75881b7fd82a8cbb8ac97be","https://git.kernel.org/stable/c/e440e077748939839d9f76e24383b76b785f80ce"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-74313","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-74313","identifiers":["CVE-2026-74313"]},"retained":false,"historicalAffected":[]}],"coverage":[]}