{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-46009", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.092Z", "datePublished": "2026-05-27T12:56:09.581Z", "dateUpdated": "2026-06-01T16:17:00.456Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-06-01T16:17:00.456Z"}, "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."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/pci/endpoint/functions/pci-epf-ntb.c"], "versions": [{"version": "8b821cf761503b80d0bd052f932adfe1bc1a0088", "lessThan": "c3029721b84f59e790285ad27544ed5d3cb0f2a6", "status": "affected", "versionType": "git"}, {"version": "8b821cf761503b80d0bd052f932adfe1bc1a0088", "lessThan": "c72f6a7ea638f95c486a5cfd86e567b646027687", "status": "affected", "versionType": "git"}, {"version": "8b821cf761503b80d0bd052f932adfe1bc1a0088", "lessThan": "72099f015d3c77bf2eb703d1aab113bd7a60915a", "status": "affected", "versionType": "git"}, {"version": "8b821cf761503b80d0bd052f932adfe1bc1a0088", "lessThan": "756ca5e7ed22d9045bb4de4c981f9149278d5cd3", "status": "affected", "versionType": "git"}, {"version": "8b821cf761503b80d0bd052f932adfe1bc1a0088", "lessThan": "65fc57c8b8f0b31be62be291cb1bb01755cec85d", "status": "affected", "versionType": "git"}, {"version": "8b821cf761503b80d0bd052f932adfe1bc1a0088", "lessThan": "e813c95e4c8edd31599081e6356e20ada30e266d", "status": "affected", "versionType": "git"}, {"version": "8b821cf761503b80d0bd052f932adfe1bc1a0088", "lessThan": "3446beddba450c8d6f9aca2f028712ac527fead3", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/pci/endpoint/functions/pci-epf-ntb.c"], "versions": [{"version": "5.12", "status": "affected"}, {"version": "0", "lessThan": "5.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.209", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.175", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.140", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.86", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.27", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.4", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1-rc1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "5.15.209"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.1.175"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.6.140"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.12.86"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "6.18.27"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "7.0.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.12", "versionEndExcluding": "7.1-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c3029721b84f59e790285ad27544ed5d3cb0f2a6"}, {"url": "https://git.kernel.org/stable/c/c72f6a7ea638f95c486a5cfd86e567b646027687"}, {"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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2026-46009", "lastModified": "2026-06-01T17:17:17.817", "metrics": {}, "published": "2026-05-27T14:17:18.710", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3446beddba450c8d6f9aca2f028712ac527fead3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/65fc57c8b8f0b31be62be291cb1bb01755cec85d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/72099f015d3c77bf2eb703d1aab113bd7a60915a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/756ca5e7ed22d9045bb4de4c981f9149278d5cd3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c3029721b84f59e790285ad27544ed5d3cb0f2a6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c72f6a7ea638f95c486a5cfd86e567b646027687"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e813c95e4c8edd31599081e6356e20ada30e266d"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: PCI: endpoint: pci-epf-ntb: Remove duplicate resource teardown", "id": "2482159", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482159"}, "csaw": false, "cwe": "CWE-832", "details": ["A flaw was found in the Linux kernel, specifically within the PCI endpoint NTB (Non-Transparent Bridge) module. A programming error involving a duplicate resource teardown in the epf_ntb_epc_destroy() function can lead to a kernel 'oops', which is a system crash. This issue can be triggered during PCI link operations, such as allow_link or drop_link, potentially resulting in a denial of service for the affected system."], "name": "CVE-2026-46009", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46009\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46009\nhttps://lore.kernel.org/linux-cve-announce/2026052744-CVE-2026-46009-9254@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b821cf761503b80d0bd052f932adfe1bc1a0088,72099f015d3c77bf2eb703d1aab113bd7a60915a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b821cf761503b80d0bd052f932adfe1bc1a0088,756ca5e7ed22d9045bb4de4c981f9149278d5cd3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b821cf761503b80d0bd052f932adfe1bc1a0088,65fc57c8b8f0b31be62be291cb1bb01755cec85d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b821cf761503b80d0bd052f932adfe1bc1a0088,e813c95e4c8edd31599081e6356e20ada30e266d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[8b821cf761503b80d0bd052f932adfe1bc1a0088,3446beddba450c8d6f9aca2f028712ac527fead3)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[5.12,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.140,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.86,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.27,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.4,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-27T17:00:17.660527+00:00", "updated": "2026-05-28T02:00:04.876152+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-416", "CWE-832"]}