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CVE-2024-53233

Estado: ModificadaMedia (5.5)—

In the Linux kernel, the following vulnerability has been resolved:

unicode: Fix utf8_load() error path

utf8_load() requests the symbol "utf8_data_table" and then checks if the requested UTF-8 version is supported. If it's unsupported, it tries to put the data table using symbol_put(). If an unsupported version is requested, symbol_put() fails like this:

That happens because symbol_put() expects the unique string that identify the symbol, instead of a pointer to the loaded symbol. Fix that by using such string.

Detalles técnicos trazas, registros y código del informe original
 kernel BUG at kernel/module/main.c:786!
 RIP: 0010:__symbol_put+0x93/0xb0
 Call Trace:
  <TASK>
  ? __die_body.cold+0x19/0x27
  ? die+0x2e/0x50
  ? do_trap+0xca/0x110
  ? do_error_trap+0x65/0x80
  ? __symbol_put+0x93/0xb0
  ? exc_invalid_op+0x51/0x70
  ? __symbol_put+0x93/0xb0
  ? asm_exc_invalid_op+0x1a/0x20
  ? __pfx_cmp_name+0x10/0x10
  ? __symbol_put+0x93/0xb0
  ? __symbol_put+0x62/0xb0
  utf8_load+0xf8/0x150

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

Referencias

JSON original (NVD)

Mostrar
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  "id": "CVE-2024-53233",
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          "role": "CISA Coordinator",
          "options": [
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              "exploitation": "none"
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            {
              "automatable": "no"
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              "technicalImpact": "partial"
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          "version": "2.0.3",
          "timestamp": "2025-10-01T20:03:03.424151Z"
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      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nunicode: Fix utf8_load() error path\n\nutf8_load() requests the symbol \"utf8_data_table\" and then checks if the\nrequested UTF-8 version is supported. If it's unsupported, it tries to\nput the data table using symbol_put(). If an unsupported version is\nrequested, symbol_put() fails like this:\n\n kernel BUG at kernel/module/main.c:786!\n RIP: 0010:__symbol_put+0x93/0xb0\n Call Trace:\n  <TASK>\n  ? __die_body.cold+0x19/0x27\n  ? die+0x2e/0x50\n  ? do_trap+0xca/0x110\n  ? do_error_trap+0x65/0x80\n  ? __symbol_put+0x93/0xb0\n  ? exc_invalid_op+0x51/0x70\n  ? __symbol_put+0x93/0xb0\n  ? asm_exc_invalid_op+0x1a/0x20\n  ? __pfx_cmp_name+0x10/0x10\n  ? __symbol_put+0x93/0xb0\n  ? __symbol_put+0x62/0xb0\n  utf8_load+0xf8/0x150\n\nThat happens because symbol_put() expects the unique string that\nidentify the symbol, instead of a pointer to the loaded symbol. Fix that\nby using such string."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: unicode: Fix utf8_load() error path utf8_load() solicita el símbolo \"utf8_data_table\" y luego verifica si la versión UTF-8 solicitada es compatible. Si no es compatible, intenta poner la tabla de datos usando symbol_put(). Si se solicita una versión no compatible, symbol_put() falla de la siguiente manera: kernel BUG at kernel/module/main.c:786! RIP: 0010:__symbol_put+0x93/0xb0 Call Trace:  ? __die_body.cold+0x19/0x27 ? die+0x2e/0x50 ? do_trap+0xca/0x110 ? do_error_trap+0x65/0x80 ? __symbol_put+0x93/0xb0 ? exc_invalid_op+0x51/0x70 ? __symbol_put+0x93/0xb0 ? asm_exc_invalid_op+0x1a/0x20 ? __pfx_cmp_name+0x10/0x10 ? __symbol_put+0x93/0xb0 ? __symbol_put+0x62/0xb0 utf8_load+0xf8/0x150 Esto sucede porque symbol_put() espera la cadena única que identifica el símbolo, en lugar de un puntero al símbolo cargado. Solucione esto utilizando dicha cadena."
    }
  ],
  "lastModified": "2026-06-17T08:08:39.717",
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