{"cve":"CVE-2026-97966","nvd":{"published":"2026-09-25T11:17:24.413","modified":"2026-10-19T10:17:48.000","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: reset HTB scheduler topology before freeing queues\n\nHTB offload programs NIX_AF_TLxX_TOPOLOGY on QoS-allocated scheduler\nqueues via otx2_qos_txschq_set_parent_topology(), but teardown freed\nthose queues without clearing TOPOLOGY.  The AF only restores PARENT and\nSCHEDULE on free, so PRIO_ANCHOR/RR_PRIO settings can survive in the\nshared scheduler pool and affect later allocations.\n\nAdd otx2_qos_reset_schq_topology() and otx2_qos_free_hw_schq() to zero\nTL4 through TL2 TOPOLOGY before each schq is returned to the AF during\nhierarchy teardown and cfg rollback.  Skip the aggregation level (TL1):\nit is a per-tx-link queue shared by the PF, default Tx hierarchy and VFs,\nand is not freed back to the AF by nix_txschq_free_one().","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/0aa2dd6eaa347c7aab448df0eec0afcfe7489885","https://git.kernel.org/stable/c/16c5c8ea5017952ff14c87626a45359d195dda6f","https://git.kernel.org/stable/c/2df186418e17b30b319cf9ff81aad137692ab107","https://git.kernel.org/stable/c/621c99be42e3f5cb68a6af9480a255218a761c4e","https://git.kernel.org/stable/c/ef39fca8508597fa565cf2be72a884a712fb98af"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:56:02.509636177+00:00"},"epss":{"cve":"CVE-2026-97966","score":0.002,"percentile":0.09719,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}