{"api_version":"1","generated_at":"2026-08-15T08:45:46+00:00","cve":"CVE-2026-74383","urls":{"html":"https://cve.report/CVE-2026-74383","api":"https://cve.report/api/cve/CVE-2026-74383.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-74383","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-74383"},"summary":{"title":"nvme-pci: fix out-of-bounds access in nvme_setup_descriptor_pools","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: fix out-of-bounds access in nvme_setup_descriptor_pools\n\nnvme_setup_descriptor_pools() indexes dev->descriptor_pools[] using the\nnuma_node forwarded from hctx->numa_node by its single caller,\nnvme_init_hctx_common().  On a non-NUMA kernel hctx->numa_node is\nNUMA_NO_NODE (-1).  Because the parameter was declared 'unsigned', the\nvalue becomes UINT_MAX and the index walks off the array (sized to\nnr_node_ids), faulting during nvme_alloc_ns() and leaving the namespace\nwithout a /dev node.\n\nReproduces on any NVMe controller probed by a CONFIG_NUMA=n kernel:\n\n  BUG: unable to handle page fault for address: ffff889101603d38\n  RIP: 0010:nvme_init_hctx_common+0x5a/0x190 [nvme]\n  Call Trace:\n   nvme_init_hctx+0x10/0x20 [nvme]\n   nvme_alloc_ns+0x9e/0xa10 [nvme_core]\n   nvme_scan_ns+0x301/0x3b0 [nvme_core]\n   nvme_scan_ns_async+0x23/0x30 [nvme_core]\n\nSwitch the parameter to int and fall back to node 0 when it is\nNUMA_NO_NODE; node 0 is always present.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-08-15 06:22:40","updated_at":"2026-08-15 06:22:40"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/fa9b6accd1ad7af6914b409c6b003c417724c299","name":"https://git.kernel.org/stable/c/fa9b6accd1ad7af6914b409c6b003c417724c299","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a192b8cfa447e1b3701a13434a31c392b2e7ed29","name":"https://git.kernel.org/stable/c/a192b8cfa447e1b3701a13434a31c392b2e7ed29","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3e8aed5edaeeb237f97255d711aac6b5843fc059","name":"https://git.kernel.org/stable/c/3e8aed5edaeeb237f97255d711aac6b5843fc059","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-74383","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74383","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d977506f8863807129d7a11f4057dfb1b38085ea 3e8aed5edaeeb237f97255d711aac6b5843fc059 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d977506f8863807129d7a11f4057dfb1b38085ea fa9b6accd1ad7af6914b409c6b003c417724c299 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected d977506f8863807129d7a11f4057dfb1b38085ea a192b8cfa447e1b3701a13434a31c392b2e7ed29 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.16","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.16 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.40 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1.5 7.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.2-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/nvme/host/pci.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"3e8aed5edaeeb237f97255d711aac6b5843fc059","status":"affected","version":"d977506f8863807129d7a11f4057dfb1b38085ea","versionType":"git"},{"lessThan":"fa9b6accd1ad7af6914b409c6b003c417724c299","status":"affected","version":"d977506f8863807129d7a11f4057dfb1b38085ea","versionType":"git"},{"lessThan":"a192b8cfa447e1b3701a13434a31c392b2e7ed29","status":"affected","version":"d977506f8863807129d7a11f4057dfb1b38085ea","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/nvme/host/pci.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.16"},{"lessThan":"6.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.40","versionType":"semver"},{"lessThanOrEqual":"7.1.*","status":"unaffected","version":"7.1.5","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.2-rc1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.40","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1.5","versionStartIncluding":"6.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.2-rc1","versionStartIncluding":"6.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: fix out-of-bounds access in nvme_setup_descriptor_pools\n\nnvme_setup_descriptor_pools() indexes dev->descriptor_pools[] using the\nnuma_node forwarded from hctx->numa_node by its single caller,\nnvme_init_hctx_common().  On a non-NUMA kernel hctx->numa_node is\nNUMA_NO_NODE (-1).  Because the parameter was declared 'unsigned', the\nvalue becomes UINT_MAX and the index walks off the array (sized to\nnr_node_ids), faulting during nvme_alloc_ns() and leaving the namespace\nwithout a /dev node.\n\nReproduces on any NVMe controller probed by a CONFIG_NUMA=n kernel:\n\n  BUG: unable to handle page fault for address: ffff889101603d38\n  RIP: 0010:nvme_init_hctx_common+0x5a/0x190 [nvme]\n  Call Trace:\n   nvme_init_hctx+0x10/0x20 [nvme]\n   nvme_alloc_ns+0x9e/0xa10 [nvme_core]\n   nvme_scan_ns+0x301/0x3b0 [nvme_core]\n   nvme_scan_ns_async+0x23/0x30 [nvme_core]\n\nSwitch the parameter to int and fall back to node 0 when it is\nNUMA_NO_NODE; node 0 is always present."}],"providerMetadata":{"dateUpdated":"2026-08-15T05:58:59.767Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/3e8aed5edaeeb237f97255d711aac6b5843fc059"},{"url":"https://git.kernel.org/stable/c/fa9b6accd1ad7af6914b409c6b003c417724c299"},{"url":"https://git.kernel.org/stable/c/a192b8cfa447e1b3701a13434a31c392b2e7ed29"}],"title":"nvme-pci: fix out-of-bounds access in nvme_setup_descriptor_pools","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-74383","datePublished":"2026-08-15T05:58:59.767Z","dateReserved":"2026-08-15T05:44:03.890Z","dateUpdated":"2026-08-15T05:58:59.767Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-08-15 06:22:40","lastModifiedDate":"2026-08-15 06:22:40","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"74383","Ordinal":"1","Title":"nvme-pci: fix out-of-bounds access in nvme_setup_descriptor_pool","CVE":"CVE-2026-74383","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"74383","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-pci: fix out-of-bounds access in nvme_setup_descriptor_pools\n\nnvme_setup_descriptor_pools() indexes dev->descriptor_pools[] using the\nnuma_node forwarded from hctx->numa_node by its single caller,\nnvme_init_hctx_common().  On a non-NUMA kernel hctx->numa_node is\nNUMA_NO_NODE (-1).  Because the parameter was declared 'unsigned', the\nvalue becomes UINT_MAX and the index walks off the array (sized to\nnr_node_ids), faulting during nvme_alloc_ns() and leaving the namespace\nwithout a /dev node.\n\nReproduces on any NVMe controller probed by a CONFIG_NUMA=n kernel:\n\n  BUG: unable to handle page fault for address: ffff889101603d38\n  RIP: 0010:nvme_init_hctx_common+0x5a/0x190 [nvme]\n  Call Trace:\n   nvme_init_hctx+0x10/0x20 [nvme]\n   nvme_alloc_ns+0x9e/0xa10 [nvme_core]\n   nvme_scan_ns+0x301/0x3b0 [nvme_core]\n   nvme_scan_ns_async+0x23/0x30 [nvme_core]\n\nSwitch the parameter to int and fall back to node 0 when it is\nNUMA_NO_NODE; node 0 is always present.","Type":"Description","Title":"nvme-pci: fix out-of-bounds access in nvme_setup_descriptor_pool"}]}}}