{"api_version":"1","generated_at":"2026-09-17T23:44:40+00:00","cve":"CVE-2026-90130","urls":{"html":"https://cve.report/CVE-2026-90130","api":"https://cve.report/api/cve/CVE-2026-90130.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-90130","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-90130"},"summary":{"title":"vdpa_sim: fix cleanup after worker creation failure","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa_sim: fix cleanup after worker creation failure\n\nvdpasim_create() leaves vdpasim->worker as an ERR_PTR when\nkthread_run_worker() fails. The error path then drops the device\nreference, which releases the partially initialized simulator.\n\nvdpasim_free() unconditionally passes the worker pointer to\nkthread_destroy_worker(), so the ERR_PTR is dereferenced and can trigger\na general protection fault.\n\nStore the worker error, clear the pointer, and only clean up the worker\nwhen it was successfully initialized. Also make the release path tolerate\npartially initialized objects by guarding virtqueue and IOTLB cleanup,\nsince the same release path can be reached from other initialization\nfailures.\n\nI found this bug myself, though the patch was written with AI assistance.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-17 17:17:05","updated_at":"2026-09-17 17:17:05"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/ca6f3fa599cb764518df595368b743f856fdb516","name":"https://git.kernel.org/stable/c/ca6f3fa599cb764518df595368b743f856fdb516","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/68b726b3a01fb02a68843781b17d05ef3d759987","name":"https://git.kernel.org/stable/c/68b726b3a01fb02a68843781b17d05ef3d759987","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/bd670e5dfd2b01fd9692f61fa1456434c54026a4","name":"https://git.kernel.org/stable/c/bd670e5dfd2b01fd9692f61fa1456434c54026a4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/05ddc94afb69e36df59e88cfa9e5c7bf9d10cfd0","name":"https://git.kernel.org/stable/c/05ddc94afb69e36df59e88cfa9e5c7bf9d10cfd0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/feafa109f031ed111f7f968e447c13985db498e0","name":"https://git.kernel.org/stable/c/feafa109f031ed111f7f968e447c13985db498e0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90130","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90130","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76acfa7bc54f1e3b9dde396e0a3534493419fd6f feafa109f031ed111f7f968e447c13985db498e0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76acfa7bc54f1e3b9dde396e0a3534493419fd6f 05ddc94afb69e36df59e88cfa9e5c7bf9d10cfd0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76acfa7bc54f1e3b9dde396e0a3534493419fd6f 68b726b3a01fb02a68843781b17d05ef3d759987 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76acfa7bc54f1e3b9dde396e0a3534493419fd6f ca6f3fa599cb764518df595368b743f856fdb516 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 76acfa7bc54f1e3b9dde396e0a3534493419fd6f bd670e5dfd2b01fd9692f61fa1456434c54026a4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.4","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.4 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.157 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.110 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.52 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.6 7.2.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.3-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/vdpa/vdpa_sim/vdpa_sim.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"feafa109f031ed111f7f968e447c13985db498e0","status":"affected","version":"76acfa7bc54f1e3b9dde396e0a3534493419fd6f","versionType":"git"},{"lessThan":"05ddc94afb69e36df59e88cfa9e5c7bf9d10cfd0","status":"affected","version":"76acfa7bc54f1e3b9dde396e0a3534493419fd6f","versionType":"git"},{"lessThan":"68b726b3a01fb02a68843781b17d05ef3d759987","status":"affected","version":"76acfa7bc54f1e3b9dde396e0a3534493419fd6f","versionType":"git"},{"lessThan":"ca6f3fa599cb764518df595368b743f856fdb516","status":"affected","version":"76acfa7bc54f1e3b9dde396e0a3534493419fd6f","versionType":"git"},{"lessThan":"bd670e5dfd2b01fd9692f61fa1456434c54026a4","status":"affected","version":"76acfa7bc54f1e3b9dde396e0a3534493419fd6f","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/vdpa/vdpa_sim/vdpa_sim.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.4"},{"lessThan":"6.4","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.157","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.110","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.52","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.6","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.3-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.52","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.6","versionStartIncluding":"6.4","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"6.4","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa_sim: fix cleanup after worker creation failure\n\nvdpasim_create() leaves vdpasim->worker as an ERR_PTR when\nkthread_run_worker() fails. The error path then drops the device\nreference, which releases the partially initialized simulator.\n\nvdpasim_free() unconditionally passes the worker pointer to\nkthread_destroy_worker(), so the ERR_PTR is dereferenced and can trigger\na general protection fault.\n\nStore the worker error, clear the pointer, and only clean up the worker\nwhen it was successfully initialized. Also make the release path tolerate\npartially initialized objects by guarding virtqueue and IOTLB cleanup,\nsince the same release path can be reached from other initialization\nfailures.\n\nI found this bug myself, though the patch was written with AI assistance."}],"providerMetadata":{"dateUpdated":"2026-09-17T16:06:31.216Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/feafa109f031ed111f7f968e447c13985db498e0"},{"url":"https://git.kernel.org/stable/c/05ddc94afb69e36df59e88cfa9e5c7bf9d10cfd0"},{"url":"https://git.kernel.org/stable/c/68b726b3a01fb02a68843781b17d05ef3d759987"},{"url":"https://git.kernel.org/stable/c/ca6f3fa599cb764518df595368b743f856fdb516"},{"url":"https://git.kernel.org/stable/c/bd670e5dfd2b01fd9692f61fa1456434c54026a4"}],"title":"vdpa_sim: fix cleanup after worker creation failure","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-90130","datePublished":"2026-09-17T16:06:31.216Z","dateReserved":"2026-09-11T19:38:34.788Z","dateUpdated":"2026-09-17T16:06:31.216Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-17 17:17:05","lastModifiedDate":"2026-09-17 17:17:05","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"90130","Ordinal":"1","Title":"vdpa_sim: fix cleanup after worker creation failure","CVE":"CVE-2026-90130","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"90130","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nvdpa_sim: fix cleanup after worker creation failure\n\nvdpasim_create() leaves vdpasim->worker as an ERR_PTR when\nkthread_run_worker() fails. The error path then drops the device\nreference, which releases the partially initialized simulator.\n\nvdpasim_free() unconditionally passes the worker pointer to\nkthread_destroy_worker(), so the ERR_PTR is dereferenced and can trigger\na general protection fault.\n\nStore the worker error, clear the pointer, and only clean up the worker\nwhen it was successfully initialized. Also make the release path tolerate\npartially initialized objects by guarding virtqueue and IOTLB cleanup,\nsince the same release path can be reached from other initialization\nfailures.\n\nI found this bug myself, though the patch was written with AI assistance.","Type":"Description","Title":"vdpa_sim: fix cleanup after worker creation failure"}]}}}