nvd-json-data-feeds/CVE-2024/CVE-2024-567xx/CVE-2024-56717.json

{
  "id": "CVE-2024-56717",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-12-29T09:15:06.907",
  "lastModified": "2025-01-10T17:36:02.260",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic()\n\nPackets injected by the CPU should have a SRC_PORT field equal to the\nCPU port module index in the Analyzer block (ocelot->num_phys_ports).\n\nThe blamed commit copied the ocelot_ifh_set_basic() call incorrectly\nfrom ocelot_xmit_common() in net/dsa/tag_ocelot.c. Instead of calling\nwith \"x\", it calls with BIT_ULL(x), but the field is not a port mask,\nbut rather a single port index.\n\n[ side note: this is the technical debt of code duplication :( ]\n\nThe error used to be silent and doesn't appear to have other\nuser-visible manifestations, but with new changes in the packing\nlibrary, it now fails loudly as follows:\n\n------------[ cut here ]------------\nCannot store 0x40 inside bits 46-43 - will truncate\nsja1105 spi2.0: xmit timed out\nWARNING: CPU: 1 PID: 102 at lib/packing.c:98 __pack+0x90/0x198\nsja1105 spi2.0: timed out polling for tstamp\nCPU: 1 UID: 0 PID: 102 Comm: felix_xmit\nTainted: G        W        N 6.13.0-rc1-00372-gf706b85d972d-dirty #2605\nCall trace:\n __pack+0x90/0x198 (P)\n __pack+0x90/0x198 (L)\n packing+0x78/0x98\n ocelot_ifh_set_basic+0x260/0x368\n ocelot_port_inject_frame+0xa8/0x250\n felix_port_deferred_xmit+0x14c/0x258\n kthread_worker_fn+0x134/0x350\n kthread+0x114/0x138\n\nThe code path pertains to the ocelot switchdev driver and to the felix\nsecondary DSA tag protocol, ocelot-8021q. Here seen with ocelot-8021q.\n\nThe messenger (packing) is not really to blame, so fix the original\ncommit instead."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: mscc: ocelot: se corrige el campo IFH SRC_PORT incorrecto en ocelot_ifh_set_basic() Los paquetes inyectados por la CPU deben tener un campo SRC_PORT igual al \u00edndice del m\u00f3dulo de puerto de la CPU en el bloque Analyzer (ocelot->num_phys_ports). el commit culpable copi\u00f3 la llamada ocelot_ifh_set_basic() incorrectamente desde ocelot_xmit_common() en net/dsa/tag_ocelot.c. En lugar de llamar con \"x\", llama con BIT_ULL(x), pero el campo no es una m\u00e1scara de puerto, sino un \u00edndice de puerto \u00fanico. [ nota al margen: esta es la deuda t\u00e9cnica de la duplicaci\u00f3n de c\u00f3digo :( ] El error sol\u00eda ser silencioso y no parece tener otras manifestaciones visibles para el usuario, pero con los nuevos cambios en la librer\u00eda de empaquetado, ahora falla ruidosamente de la siguiente manera: ------------[ cortar aqu\u00ed ]------------ No se puede almacenar 0x40 dentro de los bits 46-43 - truncar\u00e1 sja1105 spi2.0: xmit timed out WARNING: CPU: 1 PID: 102 at lib/packing.c:98 __pack+0x90/0x198 sja1105 spi2.0: timed out polling for tstamp CPU: 1 UID: 0 PID: 102 Comm: felix_xmit Tainted: GWN 6.13.0-rc1-00372-gf706b85d972d-dirty #2605 Rastreo de llamadas: __pack+0x90/0x198 (P) __pack+0x90/0x198 (L) packing+0x78/0x98 ocelot_ifh_set_basic+0x260/0x368 ocelot_port_inject_frame+0xa8/0x250 felix_port_deferred_xmit+0x14c/0x258 kthread_worker_fn+0x134/0x350 kthread+0x114/0x138 La ruta del c\u00f3digo pertenece al controlador switchdev de ocelot y al protocolo de etiqueta DSA secundaria de felix, ocelot-8021q. Aqu\u00ed se ve con ocelot-8021q. El mensajero (packing) no es realmente el culpable, as\u00ed que arregle el commit original en su lugar."
    }
  ],
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        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
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