fkie_cve-2024-46679
Vulnerability from fkie_nvd
Published
2024-09-13 06:15
Modified
2024-09-23 14:47
Severity ?
4.7 (Medium) - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ethtool: check device is present when getting link settings A sysfs reader can race with a device reset or removal, attempting to read device state when the device is not actually present. eg: [exception RIP: qed_get_current_link+17] #8 [ffffb9e4f2907c48] qede_get_link_ksettings at ffffffffc07a994a [qede] #9 [ffffb9e4f2907cd8] __rh_call_get_link_ksettings at ffffffff992b01a3 #10 [ffffb9e4f2907d38] __ethtool_get_link_ksettings at ffffffff992b04e4 #11 [ffffb9e4f2907d90] duplex_show at ffffffff99260300 #12 [ffffb9e4f2907e38] dev_attr_show at ffffffff9905a01c #13 [ffffb9e4f2907e50] sysfs_kf_seq_show at ffffffff98e0145b #14 [ffffb9e4f2907e68] seq_read at ffffffff98d902e3 #15 [ffffb9e4f2907ec8] vfs_read at ffffffff98d657d1 #16 [ffffb9e4f2907f00] ksys_read at ffffffff98d65c3f #17 [ffffb9e4f2907f38] do_syscall_64 at ffffffff98a052fb crash> struct net_device.state ffff9a9d21336000 state = 5, state 5 is __LINK_STATE_START (0b1) and __LINK_STATE_NOCARRIER (0b100). The device is not present, note lack of __LINK_STATE_PRESENT (0b10). This is the same sort of panic as observed in commit 4224cfd7fb65 ("net-sysfs: add check for netdevice being present to speed_show"). There are many other callers of __ethtool_get_link_ksettings() which don't have a device presence check. Move this check into ethtool to protect all callers.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/1d6d9b5b1b95bfeccb84386a51b7e6c510ec13b2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7a8d98b6d6484d3ad358510366022da080c37cbcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/842a40c7273ba1c1cb30dda50405b328de1d860ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/94ab317024ba373d37340893d1c0358638935fbbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9bba5955eed160102114d4cc00c3d399be9bdae4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a699781c79ecf6cfe67fb00a0331b4088c7c8466Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ec7b4f7f644018ac293cb1b02528a40a32917e62Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11


To clipboard 

{
  "configurations": [
    {
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nethtool: check device is present when getting link settings\n\nA sysfs reader can race with a device reset or removal, attempting to\nread device state when the device is not actually present. eg:\n\n     [exception RIP: qed_get_current_link+17]\n  #8 [ffffb9e4f2907c48] qede_get_link_ksettings at ffffffffc07a994a [qede]\n  #9 [ffffb9e4f2907cd8] __rh_call_get_link_ksettings at ffffffff992b01a3\n #10 [ffffb9e4f2907d38] __ethtool_get_link_ksettings at ffffffff992b04e4\n #11 [ffffb9e4f2907d90] duplex_show at ffffffff99260300\n #12 [ffffb9e4f2907e38] dev_attr_show at ffffffff9905a01c\n #13 [ffffb9e4f2907e50] sysfs_kf_seq_show at ffffffff98e0145b\n #14 [ffffb9e4f2907e68] seq_read at ffffffff98d902e3\n #15 [ffffb9e4f2907ec8] vfs_read at ffffffff98d657d1\n #16 [ffffb9e4f2907f00] ksys_read at ffffffff98d65c3f\n #17 [ffffb9e4f2907f38] do_syscall_64 at ffffffff98a052fb\n\n crash\u003e struct net_device.state ffff9a9d21336000\n    state = 5,\n\nstate 5 is __LINK_STATE_START (0b1) and __LINK_STATE_NOCARRIER (0b100).\nThe device is not present, note lack of __LINK_STATE_PRESENT (0b10).\n\nThis is the same sort of panic as observed in commit 4224cfd7fb65\n(\"net-sysfs: add check for netdevice being present to speed_show\").\n\nThere are many other callers of __ethtool_get_link_ksettings() which\ndon\u0027t have a device presence check.\n\nMove this check into ethtool to protect all callers."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ethtool: comprobar la presencia del dispositivo al obtener la configuraci\u00f3n del enlace Un lector sysfs puede competir con un reinicio o eliminaci\u00f3n del dispositivo, intentando leer el estado del dispositivo cuando este no est\u00e1 realmente presente. p. ej.: [excepci\u00f3n RIP: qed_get_current_link+17] #8 [ffffb9e4f2907c48] qede_get_link_ksettings en ffffffffc07a994a [qede] #9 [ffffb9e4f2907cd8] __rh_call_get_link_ksettings en ffffffff992b01a3 #10 [ffffb9e4f2907d38] __ethtool_get_link_ksettings en ffffffff992b04e4 #11 [ffffb9e4f2907d90] duplex_show en ffffffff99260300 #12 [ffffb9e4f2907e38] dev_attr_show en ffffffff9905a01c #13 [ffffb9e4f2907e50] sysfs_kf_seq_show en ffffffff98e0145b #14 [ffffb9e4f2907e68] seq_read en ffffffff98d902e3 #15 [ffffb9e4f2907ec8] vfs_read en ffffffff98d657d1 #16 [ffffb9e4f2907f00] ksys_read en ffffffff98d65c3f #17 [ffffb9e4f2907f38] do_syscall_64 en ffffffff98a052fb bloqueo\u0026gt; estructura net_device.state ffff9a9d21336000 estado = 5, el estado 5 es __LINK_STATE_START (0b1) y __LINK_STATE_NOCARRIER (0b100). El dispositivo no est\u00e1 presente, note la falta de __LINK_STATE_PRESENT (0b10). Este es el mismo tipo de p\u00e1nico que se observa en el commit 4224cfd7fb65 (\"net-sysfs: agregar verificaci\u00f3n de presencia de netdevice a speed_show\"). Hay muchos otros invocadores de __ethtool_get_link_ksettings() que no tienen una verificaci\u00f3n de presencia de dispositivo. Mueva esta verificaci\u00f3n a ethtool para proteger a todos los invocadores."
    }
  ],
  "id": "CVE-2024-46679",
  "lastModified": "2024-09-23T14:47:23.287",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.0,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-09-13T06:15:12.530",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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      ],
      "url": "https://git.kernel.org/stable/c/1d6d9b5b1b95bfeccb84386a51b7e6c510ec13b2"
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    {
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    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/94ab317024ba373d37340893d1c0358638935fbb"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/ec7b4f7f644018ac293cb1b02528a40a32917e62"
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  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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