{"id":"CVE-2026-97979","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: add missing xa_destroy for sched_node_ids\n\nCommit 16dfa49406bc (\"ice: Introduce new parameters in ice_sched_node\")\nadded a sched_node_ids xarray to the port info s…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nice: add missing xa_destroy for sched_node_ids\n\nCommit 16dfa49406bc (\"ice: Introduce new parameters in ice_sched_node\")\nadded a sched_node_ids xarray to the port info s…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 16dfa49406bc5e1f4cbb115027cbd719d7e6c930 < 44cdd6b7e036303f7fecf841cf23c05a4a4faf2d","Linux >= 16dfa49406bc5e1f4cbb115027cbd719d7e6c930 < f5463bc124c0d6f922e272336584730c5c61c4f1","Linux >= 16dfa49406bc5e1f4cbb115027cbd719d7e6c930 < d6f38fb12069fb1edf762962b5fcf3f42d643b47","Linux >= 16dfa49406bc5e1f4cbb115027cbd719d7e6c930 < 53432c4c3e869076350aef319534431af8ba99c1","Linux a388961be5ed8ee037ac68220e389bc4e9339a39","Linux >= 6.1.95 < 6.2","Linux 6.2"],"published":"2026-09-25","updated":"2026-09-25","sourceUpdated":"2026-09-25T11:17:25.897","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97979","references":[{"url":"https://git.kernel.org/stable/c/44cdd6b7e036303f7fecf841cf23c05a4a4faf2d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/53432c4c3e869076350aef319534431af8ba99c1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d6f38fb12069fb1edf762962b5fcf3f42d643b47","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f5463bc124c0d6f922e272336584730c5c61c4f1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-25T11:06:38.869Z","slug":"CVE-2026-97979","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nice: add missing xa_destroy for sched_node_ids\n\nCommit 16dfa49406bc (\"ice: Introduce new parameters in ice_sched_node\")\nadded a sched_node_ids xarray to the port info structure, but never called\nxa_destroy on it.\n\nSince xarrays can allocate internal memory, this can result in a memory\nleak even if every element in the xarray has been removed.\n\nThe xarray is currently embedded in the port_info structure. This appears\nto have been done because its use is within functions that take the\nport_info as a primary argument.\n\nHowever, this complicates managing the lifecycle of the field. The\nport_info structure is allocated in ice_init_hw() using devm, and it is\nnot released until the devm cleanup when the driver is unloaded.\n\nThe ice_init_hw() function is called in many places, including devlink\nreload, and possibly during DDP load after updating the Tx scheduler\nlayout.\n\nAdding a call of xa_destroy to the ice_deinit_hw() causes Sashiko to raise\nmultiple concerns due to potential ordering issues and possible ways that\nport_info could be a dangling reference.\n\nTo handle this, move the sched_node_ids out of port_info and into the hw\nstructure. All users of the array already have a pointer to hw anyways, and\nthere is only one sched_node_ids per adapter. While here, remove the overly\nverbose comment explaining the nature of the sched_node_ids xarray.\n\nAdd the missing xa_destroy to the cleanup path and to ice_deinit_hw(),\nensuring that we properly release the xarray memory.\n\nThis was caught by Sashiko during development of unrelated code.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}