octeontx2-pf: reset HTB scheduler topology before freeing queues
In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: reset HTB scheduler topology before freeing queues HTB offload programs NIX_AF_TLxX_TOPOLOGY on QoS-allocated scheduler queues via otx2_qos_txschq_set_parent_topology(), but teardown freed those queues without clearing TOPOLOGY. The AF only restores PARENT and SCHEDULE on free, so PRIO_ANCHOR/RR_PRIO settings can survive in the shared scheduler pool and affect later allocations. Add otx2_qos_reset_schq_topology() and otx2_qos_free_hw_schq() to zero TL4 through TL2 TOPOLOGY before each schq is returned to the AF during hierarchy teardown and cfg rollback. Skip the aggregation level (TL1): it is a per-tx-link queue shared by the PF, default Tx hierarchy and VFs, and is not freed back to the AF by nix_txschq_free_one().
CVE-2026-97966
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-2026-97966
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": "5e6808b4c68d7882971514ab3279926eb07c8b2d",
"lessThan": "16c5c8ea5017952ff14c87626a45359d195dda6f",
"versionType": "git"
},
{
"status": "affected",
"version": "5e6808b4c68d7882971514ab3279926eb07c8b2d",
"lessThan": "0aa2dd6eaa347c7aab448df0eec0afcfe7489885",
"versionType": "git"
},
{
"status": "affected",
"version": "5e6808b4c68d7882971514ab3279926eb07c8b2d",
"lessThan": "621c99be42e3f5cb68a6af9480a255218a761c4e",
"versionType": "git"
},
{
"status": "affected",
"version": "5e6808b4c68d7882971514ab3279926eb07c8b2d",
"lessThan": "2df186418e17b30b319cf9ff81aad137692ab107",
"versionType": "git"
},
{
"status": "affected",
"version": "5e6808b4c68d7882971514ab3279926eb07c8b2d",
"lessThan": "ef39fca8508597fa565cf2be72a884a712fb98af",
"versionType": "git"
}
],
"programFiles": [
"drivers/net/ethernet/marvell/octeontx2/nic/qos.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.5"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.5",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.6.158",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.111",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.18.53",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.2.7",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"drivers/net/ethernet/marvell/octeontx2/nic/qos.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-97966
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38102 · Revision 1
- Added to Heist Feed
- Publisher date