{"apiVersion":"1.0","identifier":"CVE-2026-74383","description":"In the Linux kernel, the following vulnerability has been resolved: nvme-pci: fix out-of-bounds access in nvme_setup_descriptor_pools nvme_setup_descriptor_pools() indexes dev->descriptor_pools[] using the numa_node forwarded from hctx->numa_node by its single caller, nvme_init_hctx_common(). On a non-NUMA kernel hctx->numa_node is NUMA_NO_NODE (-1). Because the parameter was declared -unsigned-, the value becomes UINT_MAX and the index walks off the array (sized to nr_node_ids), faulting during nvme_alloc_ns() and leaving the namespace without a /dev node. Reproduces on any NVMe controller probed by a CONFIG_NUMA=n kernel: BUG: unable to handle page fault for address: ffff889101603d38 RIP: 0010:nvme_init_hctx_common+0x5a/0x190 [nvme] Call Trace: nvme_init_hctx+0x10/0x20 [nvme] nvme_alloc_ns+0x9e/0xa10 [nvme_core] nvme_scan_ns+0x301/0x3b0 [nvme_core] nvme_scan_ns_async+0x23/0x30 [nvme_core] Switch the parameter to int and fall back to node 0 when it is NUMA_NO_NODE; node 0 is always present.","publishedAt":"2026-08-15T06:22:40","lastModifiedAt":"2026-08-17T06:19:33","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74383","cvssScore":8.4,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","epssProbability":0.00142,"riskScore":0.85,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-74383","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-74383","en":"https://www.redsauce.net/en/cves/CVE-2026-74383","fr":"https://www.redsauce.net/fr/cves/CVE-2026-74383","pt":"https://www.redsauce.net/pt/cves/CVE-2026-74383","de":"https://www.redsauce.net/de/cves/CVE-2026-74383","sk":"https://www.redsauce.net/sk/cves/CVE-2026-74383","el":"https://www.redsauce.net/el/cves/CVE-2026-74383"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-74383"}}