octeontx2-af: Block VFs from clobbering special CGX PKIND state
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.
CVE-2026-74527
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-74527
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "94d942c5fb970ac2166216838b278613decfa9a0",
"lessThan": "1106b26e86ac1e7e4d1f634bcd532c5d44e60620",
"versionType": "git"
},
{
"status": "affected",
"version": "94d942c5fb970ac2166216838b278613decfa9a0",
"lessThan": "7e888d7dd11519330ba6c6a28391d55891463a6a",
"versionType": "git"
},
{
"status": "affected",
"version": "94d942c5fb970ac2166216838b278613decfa9a0",
"lessThan": "a76243488740a07c81c9adf431685bb7f7c31d8c",
"versionType": "git"
},
{
"status": "affected",
"version": "94d942c5fb970ac2166216838b278613decfa9a0",
"lessThan": "d3c6b0f48f126a36955b3fb4154a59d0b3621d97",
"versionType": "git"
},
{
"status": "affected",
"version": "94d942c5fb970ac2166216838b278613decfa9a0",
"lessThan": "3bd438a58e910db5dc369aa25dfed1fc95f1b596",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/marvell/octeontx2/af/cgx.c",
"drivers/net/ethernet/marvell/octeontx2/af/cgx.h",
"drivers/net/ethernet/marvell/octeontx2/af/rvu.h",
"drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c",
"drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c",
"drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.20"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.20",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.160",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.114",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/marvell/octeontx2/af/cgx.c",
"drivers/net/ethernet/marvell/octeontx2/af/cgx.h",
"drivers/net/ethernet/marvell/octeontx2/af/rvu.h",
"drivers/net/ethernet/marvell/octeontx2/af/rvu_cgx.c",
"drivers/net/ethernet/marvell/octeontx2/af/rvu_nix.c",
"drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74527
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #46566 · Revision 1
- Added to Heist Feed
- Publisher date