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CVE-2026-93279

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown

The TX cleanup tasklet can be scheduled by the watchdog IRQ handler to execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in the queue which might run after the cvm_oct_remove() frees net_device structures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it iterates cvm_oct_device[] which is an array of netdevice pointers. Add tasklet_kill() after free_irq() to ensure the tasklet is no longer scheduled or running before teardown proceeds.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

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{
  "id": "CVE-2026-93279",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4898c560103fb8075c10a8e9d70e0ca26873075e",
              "lessThan": "32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4898c560103fb8075c10a8e9d70e0ca26873075e",
              "lessThan": "d15226338dfaa84ffff142d32723cdf74d0c47c4",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4898c560103fb8075c10a8e9d70e0ca26873075e",
              "lessThan": "a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4898c560103fb8075c10a8e9d70e0ca26873075e",
              "lessThan": "b6365e4186322858a82c8713b1d0bd209c8e765a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "4898c560103fb8075c10a8e9d70e0ca26873075e",
              "lessThan": "03d12490afd1198310ad0aba42462329832eb739",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "2c0c9956596e48654bb4855e2a0742748a0826a7",
              "versionType": "git"
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              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/staging/octeon/ethernet-tx.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.34"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "2.6.34",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/staging/octeon/ethernet-tx.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-24T16:17:25.147",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/03d12490afd1198310ad0aba42462329832eb739",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/2c0c9956596e48654bb4855e2a0742748a0826a7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/41a79bd9e5a74f8f483b3b206d10567912874fb4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b6365e4186322858a82c8713b1d0bd209c8e765a",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b9af44b0d20b2247c4eb0ea5cfca907d643eea50",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d15226338dfaa84ffff142d32723cdf74d0c47c4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown\n\nThe TX cleanup tasklet can be scheduled by the watchdog IRQ handler\nto execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in\nthe queue which might run after the cvm_oct_remove() frees net_device\nstructures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it\niterates cvm_oct_device[] which is an array of netdevice pointers.\nAdd tasklet_kill() after free_irq() to ensure the tasklet is no longer\nscheduled or running before teardown proceeds."
    }
  ],
  "lastModified": "2026-09-24T16:17:25.147",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}