CVE-2024-53148 (GCVE-0-2024-53148)
Vulnerability from cvelistv5
Published
2024-12-24 11:28
Modified
2025-05-04 09:54
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: comedi: Flush partial mappings in error case If some remap_pfn_range() calls succeeded before one failed, we still have buffer pages mapped into the userspace page tables when we drop the buffer reference with comedi_buf_map_put(bm). The userspace mappings are only cleaned up later in the mmap error path. Fix it by explicitly flushing all mappings in our VMA on the error path. See commit 79a61cc3fc04 ("mm: avoid leaving partial pfn mappings around in error case").
References
Impacted products
Vendor Product Version
Linux Linux Version: ed9eccbe8970f6eedc1b978c157caf1251a896d4
Version: ed9eccbe8970f6eedc1b978c157caf1251a896d4
Version: ed9eccbe8970f6eedc1b978c157caf1251a896d4
Version: ed9eccbe8970f6eedc1b978c157caf1251a896d4
Version: ed9eccbe8970f6eedc1b978c157caf1251a896d4
Version: ed9eccbe8970f6eedc1b978c157caf1251a896d4
Version: ed9eccbe8970f6eedc1b978c157caf1251a896d4
Version: ed9eccbe8970f6eedc1b978c157caf1251a896d4
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{
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncomedi: Flush partial mappings in error case\n\nIf some remap_pfn_range() calls succeeded before one failed, we still have\nbuffer pages mapped into the userspace page tables when we drop the buffer\nreference with comedi_buf_map_put(bm). The userspace mappings are only\ncleaned up later in the mmap error path.\n\nFix it by explicitly flushing all mappings in our VMA on the error path.\n\nSee commit 79a61cc3fc04 (\"mm: avoid leaving partial pfn mappings around in\nerror case\")."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T09:54:15.609Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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          "url": "https://git.kernel.org/stable/c/ce8f9fb651fac95dd41f69afe54d935420b945bd"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-53148",
    "datePublished": "2024-12-24T11:28:48.619Z",
    "dateReserved": "2024-11-19T17:17:24.998Z",
    "dateUpdated": "2025-05-04T09:54:15.609Z",
    "state": "PUBLISHED"
  },
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    "nvd": "{\"cve\":{\"id\":\"CVE-2024-53148\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-24T12:15:22.887\",\"lastModified\":\"2024-12-24T12:15:22.887\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\ncomedi: Flush partial mappings in error case\\n\\nIf some remap_pfn_range() calls succeeded before one failed, we still have\\nbuffer pages mapped into the userspace page tables when we drop the buffer\\nreference with comedi_buf_map_put(bm). The userspace mappings are only\\ncleaned up later in the mmap error path.\\n\\nFix it by explicitly flushing all mappings in our VMA on the error path.\\n\\nSee commit 79a61cc3fc04 (\\\"mm: avoid leaving partial pfn mappings around in\\nerror case\\\").\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: comedi: vaciar asignaciones parciales en caso de error. Si algunas llamadas a remap_pfn_range() tuvieron \u00e9xito antes de que una fallara, todav\u00eda tenemos p\u00e1ginas de b\u00fafer asignadas a las tablas de p\u00e1ginas del espacio de usuario cuando eliminamos la referencia de b\u00fafer con comedi_buf_map_put (bm). Las asignaciones del espacio de usuario solo se limpian m\u00e1s adelante en la ruta de error mmap. Solucionelo eliminando expl\u00edcitamente todas las asignaciones en nuestro VMA en la ruta del error. Consulte el commit 79a61cc3fc04 (\\\"mm: evite dejar asignaciones pfn parciales en caso de error\\\").\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/16c507df509113c037cdc0ba642b9ab3389bd26c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/297f14fbb81895f4ccdb0ad25d196786d6461e00\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/57f048c2d205b85e34282a9b0b0ae177e84c2f44\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8797b7712de704dc231f9e821d8eb3b9aeb3a032\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9b07fb464eb69a752406e78e62ab3a60bfa7b00d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b9322408d83accc8b96322bc7356593206288c56\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c6963a06ce5c61d3238751ada04ee1569663a828\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ce8f9fb651fac95dd41f69afe54d935420b945bd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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