CVE-2026-74527

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.

Package Linux Kernel
Published 2026-08-15
Last modified 2026-08-15
Patch available
Yes

Affected versions

Linux kernel versions 4.20 and later are affected. Fixed in 7.1.8, 7.2-rc6 and their respective stable series.

Affected from
≥ 4.20
Fixed in
✓ 7.1.8 7.1.x ✓ 7.2-rc6

References

2 total

Frequently asked questions

  • What is CVE-2026-74527?

    CVE-2026-74527 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.20 onward and has been patched in 7.1.8 and 7.2-rc6. CVE-2026-74527 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • Is there a patch available for CVE-2026-74527?

    Yes. CVE-2026-74527 has been patched. Fixed versions include 7.1.8 and 7.2-rc6. If you are running Linux kernel 4.20 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2026-74527 actively exploited?

    No. CVE-2026-74527 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

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