CVE-2026-97979 (GCVE-0-2026-97979)
Vulnerability from cvelistv5
Published
2026-09-25 10:23
Modified
2026-10-19 09:11
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ice: add missing xa_destroy for sched_node_ids Commit 16dfa49406bc ("ice: Introduce new parameters in ice_sched_node") added a sched_node_ids xarray to the port info structure, but never called xa_destroy on it. Since xarrays can allocate internal memory, this can result in a memory leak even if every element in the xarray has been removed. The xarray is currently embedded in the port_info structure. This appears to have been done because its use is within functions that take the port_info as a primary argument. However, this complicates managing the lifecycle of the field. The port_info structure is allocated in ice_init_hw() using devm, and it is not released until the devm cleanup when the driver is unloaded. The ice_init_hw() function is called in many places, including devlink reload, and possibly during DDP load after updating the Tx scheduler layout. Adding a call of xa_destroy to the ice_deinit_hw() causes Sashiko to raise multiple concerns due to potential ordering issues and possible ways that port_info could be a dangling reference. To handle this, move the sched_node_ids out of port_info and into the hw structure. All users of the array already have a pointer to hw anyways, and there is only one sched_node_ids per adapter. While here, remove the overly verbose comment explaining the nature of the sched_node_ids xarray. Add the missing xa_destroy to the cleanup path and to ice_deinit_hw(), ensuring that we properly release the xarray memory. This was caught by Sashiko during development of unrelated code.
References
Impacted products
Vendor Product Version
Linux Linux Version: a388961be5ed8ee037ac68220e389bc4e9339a39
Version: 16dfa49406bc5e1f4cbb115027cbd719d7e6c930
Version: 16dfa49406bc5e1f4cbb115027cbd719d7e6c930
Version: 16dfa49406bc5e1f4cbb115027cbd719d7e6c930
Version: 16dfa49406bc5e1f4cbb115027cbd719d7e6c930
Version: 16dfa49406bc5e1f4cbb115027cbd719d7e6c930
Version: 6.1.95   ≤
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{
  "containers": {
    "cna": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice_common.c",
            "drivers/net/ethernet/intel/ice/ice_sched.c",
            "drivers/net/ethernet/intel/ice/ice_type.h"
          ],
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          "programFiles": [
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            "drivers/net/ethernet/intel/ice/ice_sched.c",
            "drivers/net/ethernet/intel/ice/ice_type.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.111",
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            },
            {
              "lessThanOrEqual": "6.18.*",
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            },
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              "lessThanOrEqual": "7.2.*",
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              "version": "7.2.7",
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            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
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              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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 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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-19T09:11:46.482Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/09a7cdf8fffb065a8aa30cfa604ff4a65cbf04c9"
        },
        {
          "url": "https://git.kernel.org/stable/c/c075a91fe5762d314e6e182d37d29cf874bd314a"
        },
        {
          "url": "https://git.kernel.org/stable/c/44cdd6b7e036303f7fecf841cf23c05a4a4faf2d"
        },
        {
          "url": "https://git.kernel.org/stable/c/f5463bc124c0d6f922e272336584730c5c61c4f1"
        },
        {
          "url": "https://git.kernel.org/stable/c/d6f38fb12069fb1edf762962b5fcf3f42d643b47"
        },
        {
          "url": "https://git.kernel.org/stable/c/53432c4c3e869076350aef319534431af8ba99c1"
        }
      ],
      "title": "ice: add missing xa_destroy for sched_node_ids",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-97979",
    "datePublished": "2026-09-25T10:23:16.422Z",
    "dateReserved": "2026-09-25T10:18:58.208Z",
    "dateUpdated": "2026-10-19T09:11:46.482Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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