CVE-2025-39814 (GCVE-0-2025-39814)
Vulnerability from cvelistv5
Published
2025-09-16 13:00
Modified
2025-09-16 13:00
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: ice: fix NULL pointer dereference in ice_unplug_aux_dev() on reset Issuing a reset when the driver is loaded without RDMA support, will results in a crash as it attempts to remove RDMA's non-existent auxbus device: echo 1 > /sys/class/net/<if>/device/reset BUG: kernel NULL pointer dereference, address: 0000000000000008 ... RIP: 0010:ice_unplug_aux_dev+0x29/0x70 [ice] ... Call Trace: <TASK> ice_prepare_for_reset+0x77/0x260 [ice] pci_dev_save_and_disable+0x2c/0x70 pci_reset_function+0x88/0x130 reset_store+0x5a/0xa0 kernfs_fop_write_iter+0x15e/0x210 vfs_write+0x273/0x520 ksys_write+0x6b/0xe0 do_syscall_64+0x79/0x3b0 entry_SYSCALL_64_after_hwframe+0x76/0x7e ice_unplug_aux_dev() checks pf->cdev_info->adev for NULL pointer, but pf->cdev_info will also be NULL, leading to the deref in the trace above. Introduce a flag to be set when the creation of the auxbus device is successful, to avoid multiple NULL pointer checks in ice_unplug_aux_dev().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/60dfe2434eed13082f26eb7409665dfafb38fa51
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/db783756a7d7cfaea039411971d0dc0a374e85cb
Impacted products
Vendor Product Version
Linux Linux Version: c24a65b6a27c78d8540409800886b6622ea86ebf
Version: c24a65b6a27c78d8540409800886b6622ea86ebf
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   Linux Linux Version: 6.16
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/ice/ice.h",
            "drivers/net/ethernet/intel/ice/ice_idc.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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          "versions": [
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              "version": "0",
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              "versionType": "semver"
            },
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              "status": "unaffected",
              "version": "6.17-rc4",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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                  "versionStartIncluding": "6.16",
                  "vulnerable": true
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              "operator": "OR"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: fix NULL pointer dereference in ice_unplug_aux_dev() on reset\n\nIssuing a reset when the driver is loaded without RDMA support, will\nresults in a crash as it attempts to remove RDMA\u0027s non-existent auxbus\ndevice:\necho 1 \u003e /sys/class/net/\u003cif\u003e/device/reset\n\nBUG: kernel NULL pointer dereference, address: 0000000000000008\n...\nRIP: 0010:ice_unplug_aux_dev+0x29/0x70 [ice]\n...\nCall Trace:\n\u003cTASK\u003e\nice_prepare_for_reset+0x77/0x260 [ice]\npci_dev_save_and_disable+0x2c/0x70\npci_reset_function+0x88/0x130\nreset_store+0x5a/0xa0\nkernfs_fop_write_iter+0x15e/0x210\nvfs_write+0x273/0x520\nksys_write+0x6b/0xe0\ndo_syscall_64+0x79/0x3b0\nentry_SYSCALL_64_after_hwframe+0x76/0x7e\n\nice_unplug_aux_dev() checks pf-\u003ecdev_info-\u003eadev for NULL pointer, but\npf-\u003ecdev_info will also be NULL, leading to the deref in the trace above.\n\nIntroduce a flag to be set when the creation of the auxbus device is\nsuccessful, to avoid multiple NULL pointer checks in ice_unplug_aux_dev()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-16T13:00:15.552Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/db783756a7d7cfaea039411971d0dc0a374e85cb"
        },
        {
          "url": "https://git.kernel.org/stable/c/60dfe2434eed13082f26eb7409665dfafb38fa51"
        }
      ],
      "title": "ice: fix NULL pointer dereference in ice_unplug_aux_dev() on reset",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-39814",
    "datePublished": "2025-09-16T13:00:15.552Z",
    "dateReserved": "2025-04-16T07:20:57.138Z",
    "dateUpdated": "2025-09-16T13:00:15.552Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-39814\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-16T13:15:55.670\",\"lastModified\":\"2025-09-18T13:43:34.310\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nice: fix NULL pointer dereference in ice_unplug_aux_dev() on reset\\n\\nIssuing a reset when the driver is loaded without RDMA support, will\\nresults in a crash as it attempts to remove RDMA\u0027s non-existent auxbus\\ndevice:\\necho 1 \u003e /sys/class/net/\u003cif\u003e/device/reset\\n\\nBUG: kernel NULL pointer dereference, address: 0000000000000008\\n...\\nRIP: 0010:ice_unplug_aux_dev+0x29/0x70 [ice]\\n...\\nCall Trace:\\n\u003cTASK\u003e\\nice_prepare_for_reset+0x77/0x260 [ice]\\npci_dev_save_and_disable+0x2c/0x70\\npci_reset_function+0x88/0x130\\nreset_store+0x5a/0xa0\\nkernfs_fop_write_iter+0x15e/0x210\\nvfs_write+0x273/0x520\\nksys_write+0x6b/0xe0\\ndo_syscall_64+0x79/0x3b0\\nentry_SYSCALL_64_after_hwframe+0x76/0x7e\\n\\nice_unplug_aux_dev() checks pf-\u003ecdev_info-\u003eadev for NULL pointer, but\\npf-\u003ecdev_info will also be NULL, leading to the deref in the trace above.\\n\\nIntroduce a flag to be set when the creation of the auxbus device is\\nsuccessful, to avoid multiple NULL pointer checks in ice_unplug_aux_dev().\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/60dfe2434eed13082f26eb7409665dfafb38fa51\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/db783756a7d7cfaea039411971d0dc0a374e85cb\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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