CVE-2026-53098 (GCVE-0-2026-53098)
Vulnerability from cvelistv5
Published
2026-06-24 16:30
Modified
2026-09-14 11:58
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7915: fix use-after-free bugs in mt7915_mac_dump_work() When the mt7915 pci chip is detaching, the mt7915_crash_data is released in mt7915_coredump_unregister(). However, the work item dump_work may still be running or pending, leading to UAF bugs when the already freed crash_data is dereferenced again in mt7915_mac_dump_work(). The race condition can occur as follows: CPU 0 (removal path) | CPU 1 (workqueue) mt7915_pci_remove() | mt7915_sys_recovery_set() mt7915_unregister_device() | mt7915_reset() mt7915_coredump_unregister() | queue_work() vfree(dev->coredump.crash_data) | mt7915_mac_dump_work() | crash_data-> // UAF Fix this by ensuring dump_work is properly canceled before the crash_data is deallocated. Add cancel_work_sync() in mt7915_unregister_device() to synchronize with any pending or executing dump work.
References
Impacted products
Vendor Product Version
Linux Linux Version: 4bf3f4755611e3ae4cca58469e3c1d73be9c8093
Version: 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49
Version: 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49
Version: 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49
Version: 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49
Version: 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49
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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7915/init.c"
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          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7915/init.c"
          ],
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          "vendor": "Linux",
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              "version": "0",
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              "status": "unaffected",
              "version": "6.18.33",
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              "version": "7.0.10",
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              "version": "7.1",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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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\nwifi: mt76: mt7915: fix use-after-free bugs in mt7915_mac_dump_work()\n\nWhen the mt7915 pci chip is detaching, the mt7915_crash_data is\nreleased in mt7915_coredump_unregister(). However, the work item\ndump_work may still be running or pending, leading to UAF bugs\nwhen the already freed crash_data is dereferenced again in\nmt7915_mac_dump_work().\n\nThe race condition can occur as follows:\n\nCPU 0 (removal path)               | CPU 1 (workqueue)\nmt7915_pci_remove()                | mt7915_sys_recovery_set()\n mt7915_unregister_device()        |  mt7915_reset()\n  mt7915_coredump_unregister()     |   queue_work()\n   vfree(dev-\u003ecoredump.crash_data) | mt7915_mac_dump_work()\n                                   |  crash_data-\u003e // UAF\n\nFix this by ensuring dump_work is properly canceled before\nthe crash_data is deallocated. Add cancel_work_sync() in\nmt7915_unregister_device() to synchronize with any pending\nor executing dump work."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-14T11:58:31.148Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/55159f1fa30bef03e01af469823c1de103a4a884"
        },
        {
          "url": "https://git.kernel.org/stable/c/6d5202409467d621b6d1dfd7fc7dadb997fe66d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/e6856af8a22a8e2cd18241a465ed00c2301b3a5e"
        },
        {
          "url": "https://git.kernel.org/stable/c/6b7cbb13c838cf2a5f2e7be0e96fe15250087939"
        },
        {
          "url": "https://git.kernel.org/stable/c/21ce6d867867645fff0ef657be18f61d9f39dcd8"
        },
        {
          "url": "https://git.kernel.org/stable/c/1146d0946b5358fad24812bd39d68f31cd40cc34"
        }
      ],
      "title": "wifi: mt76: mt7915: fix use-after-free bugs in mt7915_mac_dump_work()",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-53098",
    "datePublished": "2026-06-24T16:30:35.887Z",
    "dateReserved": "2026-06-09T07:44:35.384Z",
    "dateUpdated": "2026-09-14T11:58:31.148Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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