CVE-2026-53098 (GCVE-0-2026-53098)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-06-24 16:30
VLAI
Title
wifi: mt76: mt7915: fix use-after-free bugs in mt7915_mac_dump_work()
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 , < 6d5202409467d621b6d1dfd7fc7dadb997fe66d2 (git)
Affected: 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 , < e6856af8a22a8e2cd18241a465ed00c2301b3a5e (git)
Affected: 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 , < 6b7cbb13c838cf2a5f2e7be0e96fe15250087939 (git)
Affected: 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 , < 21ce6d867867645fff0ef657be18f61d9f39dcd8 (git)
Affected: 4dbcb9125cc3e10a6d879c10e4f5816d05a87c49 , < 1146d0946b5358fad24812bd39d68f31cd40cc34 (git)
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Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (semver)
Unaffected: 6.6.141 , ≤ 6.6.* (semver)
Unaffected: 6.12.91 , ≤ 6.12.* (semver)
Unaffected: 6.18.33 , ≤ 6.18.* (semver)
Unaffected: 7.0.10 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7915/init.c"
          ],
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              "versionType": "git"
            },
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          "product": "Linux",
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7915/init.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.2"
            },
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              "status": "unaffected",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.141",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                },
                {
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                  "versionEndExcluding": "6.12.91",
                  "versionStartIncluding": "6.2",
                  "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\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": "2026-06-24T16:30:35.887Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "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"
      }
    }
  },
  "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": "2026-06-24T16:30:35.887Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-53098",
      "date": "2026-07-02",
      "epss": "0.00168",
      "percentile": "0.06378"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-53098\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-06-24T17:17:24.027\",\"lastModified\":\"2026-06-24T17:17:24.027\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"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.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/wireless/mediatek/mt76/mt7915/init.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"4dbcb9125cc3e10a6d879c10e4f5816d05a87c49\",\"lessThan\":\"6d5202409467d621b6d1dfd7fc7dadb997fe66d2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4dbcb9125cc3e10a6d879c10e4f5816d05a87c49\",\"lessThan\":\"e6856af8a22a8e2cd18241a465ed00c2301b3a5e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4dbcb9125cc3e10a6d879c10e4f5816d05a87c49\",\"lessThan\":\"6b7cbb13c838cf2a5f2e7be0e96fe15250087939\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4dbcb9125cc3e10a6d879c10e4f5816d05a87c49\",\"lessThan\":\"21ce6d867867645fff0ef657be18f61d9f39dcd8\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"4dbcb9125cc3e10a6d879c10e4f5816d05a87c49\",\"lessThan\":\"1146d0946b5358fad24812bd39d68f31cd40cc34\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/wireless/mediatek/mt76/mt7915/init.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.2\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.2\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.141\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.91\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.33\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.0.10\",\"lessThanOrEqual\":\"7.0.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/1146d0946b5358fad24812bd39d68f31cd40cc34\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/21ce6d867867645fff0ef657be18f61d9f39dcd8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6b7cbb13c838cf2a5f2e7be0e96fe15250087939\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6d5202409467d621b6d1dfd7fc7dadb997fe66d2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e6856af8a22a8e2cd18241a465ed00c2301b3a5e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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