octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup
In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: fix NULL deref of af_xdp_zc_qidx on rep setup af_xdp_zc_qidx tracks receive queues using AF_XDP zero-copy and is allocated during PF/VF probe. Representors and other non-AF_XDP paths leave the pointer NULL, but several call sites used test_bit() on it unconditionally. Switching to devlink eswitch mode creates representors and runs otx2_init_hw_resources(), which reaches otx2_pool_aq_init() and oopses when dereferencing the NULL bitmap. Add NULL checks before every af_xdp_zc_qidx test_bit() use in the RSS, ethtool, XSK, and pool init paths.
CVE-2026-90080
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-2026-90080
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": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
"lessThan": "b003d5b4e46ca5033859db601e12d36da24d0e40",
"versionType": "git"
},
{
"status": "affected",
"version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
"lessThan": "7e33c6bd049b532d2ec4916895ef07e538bed905",
"versionType": "git"
},
{
"status": "affected",
"version": "efabce29015189cb5cd8066cf29eb1d754de6c3c",
"lessThan": "b09a0503c755b6609fad59a84cc7f05b6843a03c",
"versionType": "git"
},
{
"status": "affected",
"version": "9bd7273cf1f9c5761d696cca821d25602e8f7009",
"versionType": "git"
},
{
"status": "affected",
"version": "6.14.9",
"lessThan": "6.15",
"versionType": "semver"
}
],
"programFiles": [
"drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c",
"drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c",
"drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.15"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.15",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.52",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.6",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c",
"drivers/net/ethernet/marvell/octeontx2/nic/otx2_ethtool.c",
"drivers/net/ethernet/marvell/octeontx2/nic/otx2_xsk.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-90080
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #36496 · Revision 1
- Added to Heist Feed
- Publisher date