CVE-2026-74527
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 94d942c5fb970ac2166216838b278613decfa9a0 < d3c6b0f48f126a36955b3fb4154a59d0b3621d97 | affected |
| Linux | Linux | 94d942c5fb970ac2166216838b278613decfa9a0 < 3bd438a58e910db5dc369aa25dfed1fc95f1b596 | affected |
| Linux | Linux | 4.20 | affected |
| Linux | Linux | 0 < 4.20 | unaffected |
| Linux | Linux | 7.1.8 <= 7.1.* | unaffected |
| Linux | Linux | 7.2-rc6 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/d3c6b0f48f126a36955b3fb4154a59d0b3621d97
- https://git.kernel.org/stable/c/3bd438a58e910db5dc369aa25dfed1fc95f1b596
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.