CVE-2026-74527 | BDVDB-2026-360244 Detail
LinuxLinux
Description#
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Block VFs from clobbering special CGX PKIND state PF and VF NIX LFs that share a CGX LMAC reuse the same hardware PKIND programming. When HiGig2 or EDSA parsing is enabled, a VF NIX LF alloc must not reset the LMAC RX PKIND or default TX parse config over the PF setup. Add cgx_get_pkind() and rvu_cgx_is_pkind_config_permitted() so VFs skip cgx_set_pkind(), rvu_npc_set_pkind(), and NIX_AF_LFX_TX_PARSE_CFG updates when the LMAC is using NPC_RX_HIGIG_PKIND or NPC_RX_EDSA_PKIND.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/f24f7ce6fb2d1ae080a05371afddba30a3e0b919
- https://git.kernel.org/stable/c/1106b26e86ac1e7e4d1f634bcd532c5d44e60620
- https://git.kernel.org/stable/c/7e888d7dd11519330ba6c6a28391d55891463a6a
- https://git.kernel.org/stable/c/a76243488740a07c81c9adf431685bb7f7c31d8c
- https://git.kernel.org/stable/c/d3c6b0f48f126a36955b3fb4154a59d0b3621d97
- https://git.kernel.org/stable/c/3bd438a58e910db5dc369aa25dfed1fc95f1b596
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.