fkie_nvd - fkie_cve-2021-47453

fkie_cve-2021-47453

Vulnerability from fkie_nvd

Published

2024-05-22 07:15

Modified

2024-11-21 06:36

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: ice: Avoid crash from unnecessary IDA free In the remove path, there is an attempt to free the aux_idx IDA whether it was allocated or not. This can potentially cause a crash when unloading the driver on systems that do not initialize support for RDMA. But, this free cannot be gated by the status bit for RDMA, since it is allocated if the driver detects support for RDMA at probe time, but the driver can enter into a state where RDMA is not supported after the IDA has been allocated at probe time and this would lead to a memory leak. Initialize aux_idx to an invalid value and check for a valid value when unloading to determine if an IDA free is necessary.

References

▼	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/73e30a62b19b9fbb4e6a3465c59da186630d5f2e
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/777682e59840e24e6c5672197e6ffbcf4bff823b
	af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/73e30a62b19b9fbb4e6a3465c59da186630d5f2e
	af854a3a-2127-422b-91ae-364da2661108	https://git.kernel.org/stable/c/777682e59840e24e6c5672197e6ffbcf4bff823b

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "In the Linux kernel, the following vulnerability has been resolved:\n\nice: Avoid crash from unnecessary IDA free\n\nIn the remove path, there is an attempt to free the aux_idx IDA whether\nit was allocated or not.  This can potentially cause a crash when\nunloading the driver on systems that do not initialize support for RDMA.\nBut, this free cannot be gated by the status bit for RDMA, since it is\nallocated if the driver detects support for RDMA at probe time, but the\ndriver can enter into a state where RDMA is not supported after the IDA\nhas been allocated at probe time and this would lead to a memory leak.\n\nInitialize aux_idx to an invalid value and check for a valid value when\nunloading to determine if an IDA free is necessary.",
      },
      {
         lang: "es",
         value: "En el kernel de Linux, se resolvió la siguiente vulnerabilidad: ice: Evite fallas por IDA innecesario libre en la ruta de eliminación, hay un intento de liberar el IDA aux_idx, ya sea que esté asignado o no. Potencialmente, esto puede provocar un bloqueo al descargar el controlador en sistemas que no inicializan la compatibilidad con RDMA. Sin embargo, esta liberación no puede ser controlada por el bit de estado para RDMA, ya que se asigna si el controlador detecta soporte para RDMA en el momento de la prueba, pero el controlador puede entrar en un estado en el que RDMA no es compatible después de que se haya asignado el IDA en el momento de la prueba. tiempo y esto provocaría una pérdida de memoria. Inicialice aux_idx con un valor no válido y verifique si hay un valor válido al descargar para determinar si es necesaria una IDA libre.",
      },
   ],
   id: "CVE-2021-47453",
   lastModified: "2024-11-21T06:36:10.650",
   metrics: {},
   published: "2024-05-22T07:15:10.380",
   references: [
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/73e30a62b19b9fbb4e6a3465c59da186630d5f2e",
      },
      {
         source: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
         url: "https://git.kernel.org/stable/c/777682e59840e24e6c5672197e6ffbcf4bff823b",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://git.kernel.org/stable/c/73e30a62b19b9fbb4e6a3465c59da186630d5f2e",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://git.kernel.org/stable/c/777682e59840e24e6c5672197e6ffbcf4bff823b",
      },
   ],
   sourceIdentifier: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
   vulnStatus: "Awaiting Analysis",
}

cve-2021-47453

Vulnerability from cvelistv5

Published

2024-05-22 06:19

Modified

2024-12-19 07:42

Severity ?

Summary

References

▼	URL	Tags
	https://git.kernel.org/stable/c/777682e59840e24e6c5672197e6ffbcf4bff823b
	https://git.kernel.org/stable/c/73e30a62b19b9fbb4e6a3465c59da186630d5f2e

Impacted products

Vendor

Product

Version

▼

Linux

Version: d25a0fc41c1f927bb914e72a03c1898052557406
Version: d25a0fc41c1f927bb914e72a03c1898052557406

Linux

Version: 5.14

Show details on NVD website

JSON

To clipboard

{
   containers: {
      adp: [
         {
            metrics: [
               {
                  other: {
                     content: {
                        id: "CVE-2021-47453",
                        options: [
                           {
                              Exploitation: "none",
                           },
                           {
                              Automatable: "no",
                           },
                           {
                              "Technical Impact": "partial",
                           },
                        ],
                        role: "CISA Coordinator",
                        timestamp: "2024-05-24T19:24:44.764547Z",
                        version: "2.0.3",
                     },
                     type: "ssvc",
                  },
               },
            ],
            providerMetadata: {
               dateUpdated: "2024-06-04T17:14:21.088Z",
               orgId: "134c704f-9b21-4f2e-91b3-4a467353bcc0",
               shortName: "CISA-ADP",
            },
            title: "CISA ADP Vulnrichment",
         },
         {
            providerMetadata: {
               dateUpdated: "2024-08-04T05:39:59.466Z",
               orgId: "af854a3a-2127-422b-91ae-364da2661108",
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                  url: "https://git.kernel.org/stable/c/73e30a62b19b9fbb4e6a3465c59da186630d5f2e",
               },
            ],
            title: "CVE Program Container",
         },
      ],
      cna: {
         affected: [
            {
               defaultStatus: "unaffected",
               product: "Linux",
               programFiles: [
                  "drivers/net/ethernet/intel/ice/ice_main.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     lessThan: "777682e59840e24e6c5672197e6ffbcf4bff823b",
                     status: "affected",
                     version: "d25a0fc41c1f927bb914e72a03c1898052557406",
                     versionType: "git",
                  },
                  {
                     lessThan: "73e30a62b19b9fbb4e6a3465c59da186630d5f2e",
                     status: "affected",
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                     versionType: "git",
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               ],
            },
            {
               defaultStatus: "affected",
               product: "Linux",
               programFiles: [
                  "drivers/net/ethernet/intel/ice/ice_main.c",
               ],
               repo: "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               vendor: "Linux",
               versions: [
                  {
                     status: "affected",
                     version: "5.14",
                  },
                  {
                     lessThan: "5.14",
                     status: "unaffected",
                     version: "0",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "5.14.*",
                     status: "unaffected",
                     version: "5.14.15",
                     versionType: "semver",
                  },
                  {
                     lessThanOrEqual: "*",
                     status: "unaffected",
                     version: "5.15",
                     versionType: "original_commit_for_fix",
                  },
               ],
            },
         ],
         descriptions: [
            {
               lang: "en",
               value: "In the Linux kernel, the following vulnerability has been resolved:\n\nice: Avoid crash from unnecessary IDA free\n\nIn the remove path, there is an attempt to free the aux_idx IDA whether\nit was allocated or not.  This can potentially cause a crash when\nunloading the driver on systems that do not initialize support for RDMA.\nBut, this free cannot be gated by the status bit for RDMA, since it is\nallocated if the driver detects support for RDMA at probe time, but the\ndriver can enter into a state where RDMA is not supported after the IDA\nhas been allocated at probe time and this would lead to a memory leak.\n\nInitialize aux_idx to an invalid value and check for a valid value when\nunloading to determine if an IDA free is necessary.",
            },
         ],
         providerMetadata: {
            dateUpdated: "2024-12-19T07:42:36.125Z",
            orgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            shortName: "Linux",
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         references: [
            {
               url: "https://git.kernel.org/stable/c/777682e59840e24e6c5672197e6ffbcf4bff823b",
            },
            {
               url: "https://git.kernel.org/stable/c/73e30a62b19b9fbb4e6a3465c59da186630d5f2e",
            },
         ],
         title: "ice: Avoid crash from unnecessary IDA free",
         x_generator: {
            engine: "bippy-5f407fcff5a0",
         },
      },
   },
   cveMetadata: {
      assignerOrgId: "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      assignerShortName: "Linux",
      cveId: "CVE-2021-47453",
      datePublished: "2024-05-22T06:19:43.374Z",
      dateReserved: "2024-05-21T14:58:30.833Z",
      dateUpdated: "2024-12-19T07:42:36.125Z",
      state: "PUBLISHED",
   },
   dataType: "CVE_RECORD",
   dataVersion: "5.1",
}

All sightings related to this event Export sightings related to this event

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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