{"api_version":"1","generated_at":"2026-10-02T17:33:21+00:00","cve":"CVE-2026-97983","urls":{"html":"https://cve.report/CVE-2026-97983","api":"https://cve.report/api/cve/CVE-2026-97983.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-97983","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-97983"},"summary":{"title":"vduse: return compat ioctl results directly","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvduse: return compat ioctl results directly\n\nThe compat handler handles VDUSE_IOTLB_GET_FD and VDUSE_VQ_GET_INFO, but\nthen calls the native handler. Their different command sizes make native\ndispatch return -ENOIOCTLCMD.\n\nFor GET_FD, this overwrites receive_fd()'s return value after the\ndescriptor is installed, leaking one fd per call. Return handled compat\nresults directly and use native dispatch only for other commands.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-25 11:17:26","updated_at":"2026-09-25 11:17:26"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/48a4ee65e677559776349128e6a81a6041986c99","name":"https://git.kernel.org/stable/c/48a4ee65e677559776349128e6a81a6041986c99","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/135ac58097fa5fc707bf392c5cececf59e4080c0","name":"https://git.kernel.org/stable/c/135ac58097fa5fc707bf392c5cececf59e4080c0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97983","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97983","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 455a2a1af92651764e9eb42cec0d95ac142afc28 135ac58097fa5fc707bf392c5cececf59e4080c0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 455a2a1af92651764e9eb42cec0d95ac142afc28 48a4ee65e677559776349128e6a81a6041986c99 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7dd28904c42ee3b0728c0692dd3332c2c83e8f33 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.1.5 7.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 7.2","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.7 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"97983","cve":"CVE-2026-97983","epss":"0.001550000","percentile":"0.039750000","score_date":"2026-09-27","updated_at":"2026-09-28 00:02:24"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/vdpa/vdpa_user/vduse_dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"135ac58097fa5fc707bf392c5cececf59e4080c0","status":"affected","version":"455a2a1af92651764e9eb42cec0d95ac142afc28","versionType":"git"},{"lessThan":"48a4ee65e677559776349128e6a81a6041986c99","status":"affected","version":"455a2a1af92651764e9eb42cec0d95ac142afc28","versionType":"git"},{"status":"affected","version":"7dd28904c42ee3b0728c0692dd3332c2c83e8f33","versionType":"git"},{"lessThan":"7.2","status":"affected","version":"7.1.5","versionType":"semver"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/vdpa/vdpa_user/vduse_dev.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"7.2"},{"lessThan":"7.2","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.7","versionStartIncluding":"7.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc3","versionStartIncluding":"7.2","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"7.1.5","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nvduse: return compat ioctl results directly\n\nThe compat handler handles VDUSE_IOTLB_GET_FD and VDUSE_VQ_GET_INFO, but\nthen calls the native handler. Their different command sizes make native\ndispatch return -ENOIOCTLCMD.\n\nFor GET_FD, this overwrites receive_fd()'s return value after the\ndescriptor is installed, leaking one fd per call. Return handled compat\nresults directly and use native dispatch only for other commands."}],"providerMetadata":{"dateUpdated":"2026-09-25T10:23:18.940Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/135ac58097fa5fc707bf392c5cececf59e4080c0"},{"url":"https://git.kernel.org/stable/c/48a4ee65e677559776349128e6a81a6041986c99"}],"title":"vduse: return compat ioctl results directly","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-97983","datePublished":"2026-09-25T10:23:18.940Z","dateReserved":"2026-09-25T10:18:58.208Z","dateUpdated":"2026-09-25T10:23:18.940Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-25 11:17:26","lastModifiedDate":"2026-09-25 11:17:26","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"97983","Ordinal":"1","Title":"vduse: return compat ioctl results directly","CVE":"CVE-2026-97983","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"97983","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nvduse: return compat ioctl results directly\n\nThe compat handler handles VDUSE_IOTLB_GET_FD and VDUSE_VQ_GET_INFO, but\nthen calls the native handler. Their different command sizes make native\ndispatch return -ENOIOCTLCMD.\n\nFor GET_FD, this overwrites receive_fd()'s return value after the\ndescriptor is installed, leaking one fd per call. Return handled compat\nresults directly and use native dispatch only for other commands.","Type":"Description","Title":"vduse: return compat ioctl results directly"}]}}}