{"id":"CVE-2026-74527","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-74527","summary":"octeontx2-af: Block VFs from clobbering special CGX PKIND state","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-af: Block VFs from clobbering special CGX PKIND state\n\nPF and VF NIX LFs that share a CGX LMAC reuse the same hardware PKIND\nprogramming. When HiGig2 or EDSA parsing is enabled, a VF NIX LF alloc must\nnot reset the LMAC RX PKIND or default TX parse config over the PF setup.\n\nAdd cgx_get_pkind() and rvu_cgx_is_pkind_config_permitted() so VFs skip\ncgx_set_pkind(), rvu_npc_set_pkind(), and NIX_AF_LFX_TX_PARSE_CFG updates\nwhen the LMAC is using NPC_RX_HIGIG_PKIND or NPC_RX_EDSA_PKIND.","published":"2026-08-15T12:27:43.568Z","modified":"2026-08-18T03:56:32.393342937Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"7.1.8"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3bd438a58e910db5dc369aa25dfed1fc95f1b596"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d3c6b0f48f126a36955b3fb4154a59d0b3621d97"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74527.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-74527"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-18T03:56:32.393342937Z"}}