{"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":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-772"],"vendor":"Linux","product":"Linux","affected":["Linux >= a388961be5ed8ee037ac68220e389bc4e9339a39 < 09a7cdf8fffb065a8aa30cfa604ff4a65cbf04c9","Linux >= 16dfa49406bc5e1f4cbb115027cbd719d7e6c930 < c075a91fe5762d314e6e182d37d29cf874bd314a","Linux >= 16dfa49406bc5e1f4cbb115027cbd719d7e6c930 < 44cdd6b7e036303f7fecf841cf23c05a4a4faf2d","Linux >= 16dfa49406bc5e1f4cbb115027cbd719d7e6c930 < f5463bc124c0d6f922e272336584730c5c61c4f1","Linux >= 16dfa49406bc5e1f4cbb115027cbd719d7e6c930 < d6f38fb12069fb1edf762962b5fcf3f42d643b47","Linux >= 16dfa49406bc5e1f4cbb115027cbd719d7e6c930 < 53432c4c3e869076350aef319534431af8ba99c1","Linux >= 6.1.95 < 6.1.189","Linux 6.2"],"published":"2026-09-25","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:18:22.030","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97979","references":[{"url":"https://git.kernel.org/stable/c/09a7cdf8fffb065a8aa30cfa604ff4a65cbf04c9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"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/c075a91fe5762d314e6e182d37d29cf874bd314a","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"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97979.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97979"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541020"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97979"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97979"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97979.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00173,"epssPercentile":0.06626,"cvssSource":"vendor","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.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-30 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97979.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":213313,"id":"CVE-2026-97979","ts":1790754687404,"field":"cvss","old":null,"new":"5.5"},{"seq":213312,"id":"CVE-2026-97979","ts":1790754687404,"field":"severity","old":"none","new":"medium"}]}