{"api_version":"1","generated_at":"2026-09-16T11:54:50+00:00","cve":"CVE-2026-89959","urls":{"html":"https://cve.report/CVE-2026-89959","api":"https://cve.report/api/cve/CVE-2026-89959.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-89959","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-89959"},"summary":{"title":"s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove\n\nThe vfio_ap_config_remove function uses the bitmap_andnot function to clear\nbits from the matrix_mdev->matrix.adm bitmap (specifies the control domains\nassigned to the mdev). This prevents the explicitly unplugged control\ndomains from being removed the KVM guest. The bitmap_and function is used\ninstead.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-09-16 11:17:06","updated_at":"2026-09-16 11:17:06"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/02e72909453dee2f8a09f78819f9a9cb902dfbdc","name":"https://git.kernel.org/stable/c/02e72909453dee2f8a09f78819f9a9cb902dfbdc","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/f7d66afc34bc6e833c8ebe56973afec35f473bc1","name":"https://git.kernel.org/stable/c/f7d66afc34bc6e833c8ebe56973afec35f473bc1","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/4bffadde7fc49b00493fb78c6376f958998d4b8c","name":"https://git.kernel.org/stable/c/4bffadde7fc49b00493fb78c6376f958998d4b8c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/6b8a02e216f6b520cc029e43ddc83956605135d5","name":"https://git.kernel.org/stable/c/6b8a02e216f6b520cc029e43ddc83956605135d5","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/12871a4269f139221c9fde9ea3eb69c9228f59d4","name":"https://git.kernel.org/stable/c/12871a4269f139221c9fde9ea3eb69c9228f59d4","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/2ff68bf414de167bc138e6e211ee1ad3ab3c5052","name":"https://git.kernel.org/stable/c/2ff68bf414de167bc138e6e211ee1ad3ab3c5052","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89959","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89959","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 12871a4269f139221c9fde9ea3eb69c9228f59d4 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 02e72909453dee2f8a09f78819f9a9cb902dfbdc git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 4bffadde7fc49b00493fb78c6376f958998d4b8c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 f7d66afc34bc6e833c8ebe56973afec35f473bc1 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 2ff68bf414de167bc138e6e211ee1ad3ab3c5052 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 6b8a02e216f6b520cc029e43ddc83956605135d5 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.0","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.0 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.188 6.1.* 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 6.18.51 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2.5 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/s390/crypto/vfio_ap_ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"12871a4269f139221c9fde9ea3eb69c9228f59d4","status":"affected","version":"eeb386aeb5b7c8d2dae6a3ba49255d8a97803182","versionType":"git"},{"lessThan":"02e72909453dee2f8a09f78819f9a9cb902dfbdc","status":"affected","version":"eeb386aeb5b7c8d2dae6a3ba49255d8a97803182","versionType":"git"},{"lessThan":"4bffadde7fc49b00493fb78c6376f958998d4b8c","status":"affected","version":"eeb386aeb5b7c8d2dae6a3ba49255d8a97803182","versionType":"git"},{"lessThan":"f7d66afc34bc6e833c8ebe56973afec35f473bc1","status":"affected","version":"eeb386aeb5b7c8d2dae6a3ba49255d8a97803182","versionType":"git"},{"lessThan":"2ff68bf414de167bc138e6e211ee1ad3ab3c5052","status":"affected","version":"eeb386aeb5b7c8d2dae6a3ba49255d8a97803182","versionType":"git"},{"lessThan":"6b8a02e216f6b520cc029e43ddc83956605135d5","status":"affected","version":"eeb386aeb5b7c8d2dae6a3ba49255d8a97803182","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/s390/crypto/vfio_ap_ops.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.0"},{"lessThan":"6.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.188","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":"6.18.51","versionType":"semver"},{"lessThanOrEqual":"7.2.*","status":"unaffected","version":"7.2.5","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":"6.1.188","versionStartIncluding":"6.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.157","versionStartIncluding":"6.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.110","versionStartIncluding":"6.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.51","versionStartIncluding":"6.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2.5","versionStartIncluding":"6.0","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.3-rc1","versionStartIncluding":"6.0","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove\n\nThe vfio_ap_config_remove function uses the bitmap_andnot function to clear\nbits from the matrix_mdev->matrix.adm bitmap (specifies the control domains\nassigned to the mdev). This prevents the explicitly unplugged control\ndomains from being removed the KVM guest. The bitmap_and function is used\ninstead."}],"providerMetadata":{"dateUpdated":"2026-09-16T10:32:41.908Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/12871a4269f139221c9fde9ea3eb69c9228f59d4"},{"url":"https://git.kernel.org/stable/c/02e72909453dee2f8a09f78819f9a9cb902dfbdc"},{"url":"https://git.kernel.org/stable/c/4bffadde7fc49b00493fb78c6376f958998d4b8c"},{"url":"https://git.kernel.org/stable/c/f7d66afc34bc6e833c8ebe56973afec35f473bc1"},{"url":"https://git.kernel.org/stable/c/2ff68bf414de167bc138e6e211ee1ad3ab3c5052"},{"url":"https://git.kernel.org/stable/c/6b8a02e216f6b520cc029e43ddc83956605135d5"}],"title":"s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-89959","datePublished":"2026-09-16T10:32:41.908Z","dateReserved":"2026-09-11T19:38:34.778Z","dateUpdated":"2026-09-16T10:32:41.908Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-09-16 11:17:06","lastModifiedDate":"2026-09-16 11:17:06","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"89959","Ordinal":"1","Title":"s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_rem","CVE":"CVE-2026-89959","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"89959","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove\n\nThe vfio_ap_config_remove function uses the bitmap_andnot function to clear\nbits from the matrix_mdev->matrix.adm bitmap (specifies the control domains\nassigned to the mdev). This prevents the explicitly unplugged control\ndomains from being removed the KVM guest. The bitmap_and function is used\ninstead.","Type":"Description","Title":"s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_rem"}]}}}