{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31595", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.121Z", "datePublished": "2026-04-24T14:42:21.355Z", "dateUpdated": "2026-04-24T14:42:21.355Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-24T14:42:21.355Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nPCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup\n\nDisable the delayed work before clearing BAR mappings and doorbells to\navoid running the handler after resources have been torn down.\n\n Unable to handle kernel paging request at virtual address ffff800083f46004\n [...]\n Internal error: Oops: 0000000096000007 [#1] SMP\n [...]\n Call trace:\n epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P)\n process_one_work+0x154/0x3b0\n worker_thread+0x2c8/0x400\n kthread+0x148/0x210\n ret_from_fork+0x10/0x20"}], "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-vntb.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "6773cc24c004930903a57761132c1e7728907f8f", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "9921cce25bfe4021f6e55ca995351eb967165297", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "5999067140c67530a6cb6f41a8471596e60452cb", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "fbb6c353fa2fb5f5f990eda034a1074b0356127e", "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-vntb.c"], "versions": [{"version": "6.12.83", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.24", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.14", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0.1", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.83"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.18.24"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.19.14"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "7.0.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6773cc24c004930903a57761132c1e7728907f8f"}, {"url": "https://git.kernel.org/stable/c/9921cce25bfe4021f6e55ca995351eb967165297"}, {"url": "https://git.kernel.org/stable/c/5999067140c67530a6cb6f41a8471596e60452cb"}, {"url": "https://git.kernel.org/stable/c/fbb6c353fa2fb5f5f990eda034a1074b0356127e"}], "title": "PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup", "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-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup\n\nDisable the delayed work before clearing BAR mappings and doorbells to\navoid running the handler after resources have been torn down.\n\n Unable to handle kernel paging request at virtual address ffff800083f46004\n [...]\n Internal error: Oops: 0000000096000007 [#1] SMP\n [...]\n Call trace:\n epf_ntb_cmd_handler+0x54/0x200 [pci_epf_vntb] (P)\n process_one_work+0x154/0x3b0\n worker_thread+0x2c8/0x400\n kthread+0x148/0x210\n ret_from_fork+0x10/0x20"}], "id": "CVE-2026-31595", "lastModified": "2026-04-24T17:51:40.810", "metrics": {}, "published": "2026-04-24T15:16:37.237", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5999067140c67530a6cb6f41a8471596e60452cb"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6773cc24c004930903a57761132c1e7728907f8f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/9921cce25bfe4021f6e55ca995351eb967165297"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fbb6c353fa2fb5f5f990eda034a1074b0356127e"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: PCI: endpoint: pci-epf-vntb: Stop cmd_handler work in epf_ntb_epc_cleanup", "id": "2461455", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461455"}, "csaw": false, "cwe": "CWE-366", "details": ["A flaw was found in the Linux kernel's `pci-epf-vntb` module. This vulnerability occurs due to improper handling of the `cmd_handler` work during the `epf_ntb_epc_cleanup` process. If the delayed work is not disabled before clearing BAR mappings and doorbells, the handler can attempt to access resources that have already been torn down. This can lead to a kernel paging request error and an internal system error, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-31595", "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": "2026-04-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31595\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31595\nhttps://lore.kernel.org/linux-cve-announce/2026042416-CVE-2026-31595-b754@gregkh/T"]}

{}