FKIE_CVE-2026-53098

Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-06-24 17:17
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
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1146d0946b5358fad24812bd39d68f31cd40cc34
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21ce6d867867645fff0ef657be18f61d9f39dcd8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6b7cbb13c838cf2a5f2e7be0e96fe15250087939
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6d5202409467d621b6d1dfd7fc7dadb997fe66d2
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e6856af8a22a8e2cd18241a465ed00c2301b3a5e
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "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": [
            {
              "lessThan": "6d5202409467d621b6d1dfd7fc7dadb997fe66d2",
              "status": "affected",
              "version": "4dbcb9125cc3e10a6d879c10e4f5816d05a87c49",
              "versionType": "git"
            },
            {
              "lessThan": "e6856af8a22a8e2cd18241a465ed00c2301b3a5e",
              "status": "affected",
              "version": "4dbcb9125cc3e10a6d879c10e4f5816d05a87c49",
              "versionType": "git"
            },
            {
              "lessThan": "6b7cbb13c838cf2a5f2e7be0e96fe15250087939",
              "status": "affected",
              "version": "4dbcb9125cc3e10a6d879c10e4f5816d05a87c49",
              "versionType": "git"
            },
            {
              "lessThan": "21ce6d867867645fff0ef657be18f61d9f39dcd8",
              "status": "affected",
              "version": "4dbcb9125cc3e10a6d879c10e4f5816d05a87c49",
              "versionType": "git"
            },
            {
              "lessThan": "1146d0946b5358fad24812bd39d68f31cd40cc34",
              "status": "affected",
              "version": "4dbcb9125cc3e10a6d879c10e4f5816d05a87c49",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "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"
            },
            {
              "lessThan": "6.2",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.141",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
            },
            {
              "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"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "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."
    }
  ],
  "id": "CVE-2026-53098",
  "lastModified": "2026-06-24T17:17:24.027",
  "metrics": {},
  "published": "2026-06-24T17:17:24.027",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "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"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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