{"api_version":"1","generated_at":"2026-05-30T06:40:47+00:00","cve":"CVE-2026-46009","urls":{"html":"https://cve.report/CVE-2026-46009","api":"https://cve.report/api/cve/CVE-2026-46009.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-46009","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-46009"},"summary":{"title":"PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown\n\nepf_ntb_epc_destroy() duplicates the teardown that the caller is\nsupposed to do later. This leads to an oops when .allow_link fails or\nwhen .drop_link is performed. Remove the helper.\n\nAlso drop pci_epc_put(). EPC device refcounting is tied to configfs EPC\ngroup lifetime, and pci_epc_put() in the .drop_link path is sufficient.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-27 14:17:18","updated_at":"2026-05-27 14:48:03"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/756ca5e7ed22d9045bb4de4c981f9149278d5cd3","name":"https://git.kernel.org/stable/c/756ca5e7ed22d9045bb4de4c981f9149278d5cd3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266d","name":"https://git.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915a","name":"https://git.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915a","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3446beddba450c8d6f9aca2f028712ac527fead3","name":"https://git.kernel.org/stable/c/3446beddba450c8d6f9aca2f028712ac527fead3","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85d","name":"https://git.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-46009","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46009","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 72099f015d3c77bf2eb703d1aab113bd7a60915a git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 756ca5e7ed22d9045bb4de4c981f9149278d5cd3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 65fc57c8b8f0b31be62be291cb1bb01755cec85d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 e813c95e4c8edd31599081e6356e20ada30e266d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 8b821cf761503b80d0bd052f932adfe1bc1a0088 3446beddba450c8d6f9aca2f028712ac527fead3 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.12","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.12 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.140 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.86 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.27 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.4 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1-rc1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"46009","cve":"CVE-2026-46009","epss":"0.000180000","percentile":"0.051640000","score_date":"2026-05-29","updated_at":"2026-05-30 00:13:24"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/pci/endpoint/functions/pci-epf-ntb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"72099f015d3c77bf2eb703d1aab113bd7a60915a","status":"affected","version":"8b821cf761503b80d0bd052f932adfe1bc1a0088","versionType":"git"},{"lessThan":"756ca5e7ed22d9045bb4de4c981f9149278d5cd3","status":"affected","version":"8b821cf761503b80d0bd052f932adfe1bc1a0088","versionType":"git"},{"lessThan":"65fc57c8b8f0b31be62be291cb1bb01755cec85d","status":"affected","version":"8b821cf761503b80d0bd052f932adfe1bc1a0088","versionType":"git"},{"lessThan":"e813c95e4c8edd31599081e6356e20ada30e266d","status":"affected","version":"8b821cf761503b80d0bd052f932adfe1bc1a0088","versionType":"git"},{"lessThan":"3446beddba450c8d6f9aca2f028712ac527fead3","status":"affected","version":"8b821cf761503b80d0bd052f932adfe1bc1a0088","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/pci/endpoint/functions/pci-epf-ntb.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.12"},{"lessThan":"5.12","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.140","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.86","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.27","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.4","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.140","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.86","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.27","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.4","versionStartIncluding":"5.12","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1-rc1","versionStartIncluding":"5.12","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown\n\nepf_ntb_epc_destroy() duplicates the teardown that the caller is\nsupposed to do later. This leads to an oops when .allow_link fails or\nwhen .drop_link is performed. Remove the helper.\n\nAlso drop pci_epc_put(). EPC device refcounting is tied to configfs EPC\ngroup lifetime, and pci_epc_put() in the .drop_link path is sufficient."}],"providerMetadata":{"dateUpdated":"2026-05-27T12:56:09.581Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915a"},{"url":"https://git.kernel.org/stable/c/756ca5e7ed22d9045bb4de4c981f9149278d5cd3"},{"url":"https://git.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85d"},{"url":"https://git.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266d"},{"url":"https://git.kernel.org/stable/c/3446beddba450c8d6f9aca2f028712ac527fead3"}],"title":"PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-46009","datePublished":"2026-05-27T12:56:09.581Z","dateReserved":"2026-05-13T15:03:33.092Z","dateUpdated":"2026-05-27T12:56:09.581Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-27 14:17:18","lastModifiedDate":"2026-05-27 14:48:03","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"46009","Ordinal":"1","Title":"PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown","CVE":"CVE-2026-46009","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"46009","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown\n\nepf_ntb_epc_destroy() duplicates the teardown that the caller is\nsupposed to do later. This leads to an oops when .allow_link fails or\nwhen .drop_link is performed. Remove the helper.\n\nAlso drop pci_epc_put(). EPC device refcounting is tied to configfs EPC\ngroup lifetime, and pci_epc_put() in the .drop_link path is sufficient.","Type":"Description","Title":"PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown"}]}}}