fkie_cve-2024-47747
Vulnerability from fkie_nvd
Published
2024-10-21 13:15
Modified
2024-11-08 16:15
Severity ?
7.0 (High) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: net: seeq: Fix use after free vulnerability in ether3 Driver Due to Race Condition In the ether3_probe function, a timer is initialized with a callback function ether3_ledoff, bound to &prev(dev)->timer. Once the timer is started, there is a risk of a race condition if the module or device is removed, triggering the ether3_remove function to perform cleanup. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | ether3_ledoff ether3_remove | free_netdev(dev); | put_devic | kfree(dev); | | ether3_outw(priv(dev)->regs.config2 |= CFG2_CTRLO, REG_CONFIG2); | // use dev Fix it by ensuring that the timer is canceled before proceeding with the cleanup in ether3_remove.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1c57d61a43293252ad732007c7070fdb112545fdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/25d559ed2beec9b34045886100dac46d1ad92eba
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/338a0582b28e69460df03af50e938b86b4206353Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/516dbc6d16637430808c39568cbb6b841d32b55bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/77a77331cef0a219b8dd91361435eeef04cb741cPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/822c7bb1f6f8b0331e8d1927151faf8db3b33afdPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b5109b60ee4fcb2f2bb24f589575e10cc5283ad4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b5a84b6c772564c8359a9a0fbaeb2a2944aa1ee9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d2abc379071881798d20e2ac1d332ad855ae22f3Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: seeq: Fix use after free vulnerability in ether3 Driver Due to Race Condition\n\nIn the ether3_probe function, a timer is initialized with a callback\nfunction ether3_ledoff, bound to \u0026prev(dev)-\u003etimer. Once the timer is\nstarted, there is a risk of a race condition if the module or device\nis removed, triggering the ether3_remove function to perform cleanup.\nThe sequence of operations that may lead to a UAF bug is as follows:\n\nCPU0                                    CPU1\n\n                      |  ether3_ledoff\nether3_remove         |\n  free_netdev(dev);   |\n  put_devic           |\n  kfree(dev);         |\n |  ether3_outw(priv(dev)-\u003eregs.config2 |= CFG2_CTRLO, REG_CONFIG2);\n                      | // use dev\n\nFix it by ensuring that the timer is canceled before proceeding with\nthe cleanup in ether3_remove."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: seeq: Se corrige la vulnerabilidad de use after free en el controlador ether3 debido a una condici\u00f3n de ejecuci\u00f3n En la funci\u00f3n ether3_probe, se inicializa un temporizador con una funci\u00f3n de devoluci\u00f3n de llamada ether3_ledoff, vinculada a \u0026amp;prev(dev)-\u0026gt;timer. Una vez que se inicia el temporizador, existe el riesgo de una condici\u00f3n de ejecuci\u00f3n si se elimina el m\u00f3dulo o dispositivo, lo que activa la funci\u00f3n ether3_remove para realizar la limpieza. La secuencia de operaciones que pueden provocar un error de UAF es la siguiente: CPU0 CPU1 | ether3_ledoff ether3_remove | free_netdev(dev); | put_devic | kfree(dev); | | ether3_outw(priv(dev)-\u0026gt;regs.config2 |= CFG2_CTRLO, REG_CONFIG2); | // use dev Corr\u00edjalo asegur\u00e1ndose de que el temporizador se cancele antes de continuar con la limpieza en ether3_remove."
    }
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  "id": "CVE-2024-47747",
  "lastModified": "2024-11-08T16:15:27.837",
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          "baseScore": 7.0,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
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  "published": "2024-10-21T13:15:04.753",
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      "source": "nvd@nist.gov",
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}


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