{"apiVersion":"1.0","identifier":"CVE-2026-80640","description":"In the Linux kernel, the following vulnerability has been resolved: cxl/fwctl: Fix __fortify_panic Fix a runtime assertion in cxlctl_get_supported_features(). Fortify complains that it is potentially overflowing the entries array per __counted_by_le(num_entries). Quiet the false positive by initializing @num_entries earlier. memcpy: detected buffer overflow: 48 byte write of buffer size 0 WARNING: lib/string_helpers.c:1036 at __fortify_report+0x4d/0xa0, CPU#7: fwctl/1398 RIP: 0010:__fortify_report+0x50/0xa0 Call Trace: __fortify_panic+0xd/0xf cxlctl_get_supported_features.cold+0x23/0x35 [cxl_core]","publishedAt":"2026-08-28T08:16:48","lastModifiedAt":"2026-08-28T08:16:48","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-80640","cvssScore":null,"cvssVector":"Pending","epssProbability":0.00183,"riskScore":0,"affectedProduct":"Linux kernel","affectedVersions":"unknown","vulnerabilityType":"Kernel","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-80640","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-80640","en":"https://www.redsauce.net/en/cves/CVE-2026-80640","fr":"https://www.redsauce.net/fr/cves/CVE-2026-80640","pt":"https://www.redsauce.net/pt/cves/CVE-2026-80640","de":"https://www.redsauce.net/de/cves/CVE-2026-80640","sk":"https://www.redsauce.net/sk/cves/CVE-2026-80640","el":"https://www.redsauce.net/el/cves/CVE-2026-80640"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-80640"}}