{"id":"CVE-2026-74527","title":"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","summary":"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 …","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 94d942c5fb970ac2166216838b278613decfa9a0 < a76243488740a07c81c9adf431685bb7f7c31d8c","Linux >= 94d942c5fb970ac2166216838b278613decfa9a0 < d3c6b0f48f126a36955b3fb4154a59d0b3621d97","Linux >= 94d942c5fb970ac2166216838b278613decfa9a0 < 3bd438a58e910db5dc369aa25dfed1fc95f1b596","Linux 4.20"],"published":"2026-08-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:17:46.513","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-74527","references":[{"url":"https://git.kernel.org/stable/c/3bd438a58e910db5dc369aa25dfed1fc95f1b596","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a76243488740a07c81c9adf431685bb7f7c31d8c","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d3c6b0f48f126a36955b3fb4154a59d0b3621d97","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00165,"epssPercentile":0.05338,"ingestedAt":"2026-10-15T11:00:41.674Z","slug":"CVE-2026-74527","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":48,"depthScoreParts":{"impact":48.4,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}