CVE-2024-53227

Estado: ModificadaAlta (7.8)—

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

scsi: bfa: Fix use-after-free in bfad_im_module_exit()

Above issue happens as follows:

Don't call bfad_im_module_exit() if bfad_im_module_init() failed.

Detalles técnicos trazas, registros y código del informe original

BUG: KASAN: slab-use-after-free in __lock_acquire+0x2aca/0x3a20
Read of size 8 at addr ffff8881082d80c8 by task modprobe/25303

Call Trace:
 <TASK>
 dump_stack_lvl+0x95/0xe0
 print_report+0xcb/0x620
 kasan_report+0xbd/0xf0
 __lock_acquire+0x2aca/0x3a20
 lock_acquire+0x19b/0x520
 _raw_spin_lock+0x2b/0x40
 attribute_container_unregister+0x30/0x160
 fc_release_transport+0x19/0x90 [scsi_transport_fc]
 bfad_im_module_exit+0x23/0x60 [bfa]
 bfad_init+0xdb/0xff0 [bfa]
 do_one_initcall+0xdc/0x550
 do_init_module+0x22d/0x6b0
 load_module+0x4e96/0x5ff0
 init_module_from_file+0xcd/0x130
 idempotent_init_module+0x330/0x620
 __x64_sys_finit_module+0xb3/0x110
 do_syscall_64+0xc1/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
 </TASK>

Allocated by task 25303:
 kasan_save_stack+0x24/0x50
 kasan_save_track+0x14/0x30
 __kasan_kmalloc+0x7f/0x90
 fc_attach_transport+0x4f/0x4740 [scsi_transport_fc]
 bfad_im_module_init+0x17/0x80 [bfa]
 bfad_init+0x23/0xff0 [bfa]
 do_one_initcall+0xdc/0x550
 do_init_module+0x22d/0x6b0
 load_module+0x4e96/0x5ff0
 init_module_from_file+0xcd/0x130
 idempotent_init_module+0x330/0x620
 __x64_sys_finit_module+0xb3/0x110
 do_syscall_64+0xc1/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Freed by task 25303:
 kasan_save_stack+0x24/0x50
 kasan_save_track+0x14/0x30
 kasan_save_free_info+0x3b/0x60
 __kasan_slab_free+0x38/0x50
 kfree+0x212/0x480
 bfad_im_module_init+0x7e/0x80 [bfa]
 bfad_init+0x23/0xff0 [bfa]
 do_one_initcall+0xdc/0x550
 do_init_module+0x22d/0x6b0
 load_module+0x4e96/0x5ff0
 init_module_from_file+0xcd/0x130
 idempotent_init_module+0x330/0x620
 __x64_sys_finit_module+0xb3/0x110
 do_syscall_64+0xc1/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

bfad_init
  error = bfad_im_module_init()
    fc_release_transport(bfad_im_scsi_transport_template);
  if (error)
    goto ext;

ext:
  bfad_im_module_exit();
    fc_release_transport(bfad_im_scsi_transport_template);
    --> Trigger double release

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.28%
Percentil entre todas las CVEs puntuadas: 19
Fecha de la puntuación: 6/10/2026

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1059 Command and Scripting Interpreterexecution75 %

Use-after-free local (AV:L, PR:L) en módulo kernel bfa; se resuelve evitando doble liberación. Permite ejecución de código con privilegios elevados tras explotación del error de manejo de memoria.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Execution Prevention Threat Intelligence Program Restrict Web-Based Content Privileged Account Management Limit Software Installation Behavior Prevention on Endpoint

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-416
CWE-416

Referencias

JSON original (NVD)

Mostrar

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          "programFiles": [
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              "versionType": "semver"
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              "lessThanOrEqual": "4.19.*"
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              "status": "unaffected",
              "version": "5.4.287",
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              "lessThanOrEqual": "5.4.*"
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              "version": "5.10.231",
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              "lessThanOrEqual": "5.10.*"
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              "lessThanOrEqual": "5.15.*"
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              "version": "6.6.64",
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              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
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    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: bfa: Fix use-after-free in bfad_im_module_exit()\n\nBUG: KASAN: slab-use-after-free in __lock_acquire+0x2aca/0x3a20\nRead of size 8 at addr ffff8881082d80c8 by task modprobe/25303\n\nCall Trace:\n <TASK>\n dump_stack_lvl+0x95/0xe0\n print_report+0xcb/0x620\n kasan_report+0xbd/0xf0\n __lock_acquire+0x2aca/0x3a20\n lock_acquire+0x19b/0x520\n _raw_spin_lock+0x2b/0x40\n attribute_container_unregister+0x30/0x160\n fc_release_transport+0x19/0x90 [scsi_transport_fc]\n bfad_im_module_exit+0x23/0x60 [bfa]\n bfad_init+0xdb/0xff0 [bfa]\n do_one_initcall+0xdc/0x550\n do_init_module+0x22d/0x6b0\n load_module+0x4e96/0x5ff0\n init_module_from_file+0xcd/0x130\n idempotent_init_module+0x330/0x620\n __x64_sys_finit_module+0xb3/0x110\n do_syscall_64+0xc1/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n </TASK>\n\nAllocated by task 25303:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n __kasan_kmalloc+0x7f/0x90\n fc_attach_transport+0x4f/0x4740 [scsi_transport_fc]\n bfad_im_module_init+0x17/0x80 [bfa]\n bfad_init+0x23/0xff0 [bfa]\n do_one_initcall+0xdc/0x550\n do_init_module+0x22d/0x6b0\n load_module+0x4e96/0x5ff0\n init_module_from_file+0xcd/0x130\n idempotent_init_module+0x330/0x620\n __x64_sys_finit_module+0xb3/0x110\n do_syscall_64+0xc1/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nFreed by task 25303:\n kasan_save_stack+0x24/0x50\n kasan_save_track+0x14/0x30\n kasan_save_free_info+0x3b/0x60\n __kasan_slab_free+0x38/0x50\n kfree+0x212/0x480\n bfad_im_module_init+0x7e/0x80 [bfa]\n bfad_init+0x23/0xff0 [bfa]\n do_one_initcall+0xdc/0x550\n do_init_module+0x22d/0x6b0\n load_module+0x4e96/0x5ff0\n init_module_from_file+0xcd/0x130\n idempotent_init_module+0x330/0x620\n __x64_sys_finit_module+0xb3/0x110\n do_syscall_64+0xc1/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nAbove issue happens as follows:\n\nbfad_init\n  error = bfad_im_module_init()\n    fc_release_transport(bfad_im_scsi_transport_template);\n  if (error)\n    goto ext;\n\next:\n  bfad_im_module_exit();\n    fc_release_transport(bfad_im_scsi_transport_template);\n    --> Trigger double release\n\nDon't call bfad_im_module_exit() if bfad_im_module_init() failed."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: scsi: bfa: Se corrige el use-after-free en bfad_im_module_exit() ERROR: KASAN: use-after-free de losa en __lock_acquire+0x2aca/0x3a20 Lectura de tamaño 8 en la dirección ffff8881082d80c8 por la tarea modprobe/25303 Seguimiento de llamadas:  dump_stack_lvl+0x95/0xe0 print_report+0xcb/0x620 kasan_report+0xbd/0xf0 __lock_acquire+0x2aca/0x3a20 lock_acquire+0x19b/0x520 _raw_spin_lock+0x2b/0x40 attribute_container_unregister+0x30/0x160 Asignado por tarea 25303: pila de guardado de kasan+0x24/0x50 pista de guardado de kasan+0x14/0x30 __kasan_kmalloc+0x7f/0x90 transporte de acoplamiento de fc+0x4f/0x4740 [transporte de scsi_fc] inicio del módulo de bfad_im+0x17/0x80 [bfa] inicio del módulo de bfad_init+0x23/0xff0 [bfa] hacer una llamada de inicio+0xdc/0x550 hacer el módulo de inicio+0x22d/0x6b0 módulo de carga+0x4e96/0x5ff0 módulo de inicio desde el archivo+0xcd/0x130 módulo de inicio idempotente+0x330/0x620 __x64_sys_finit_module+0xb3/0x110 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f Liberado por la tarea 25303: kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3b/0x60 __kasan_slab_free+0x38/0x50 kfree+0x212/0x480 bfad_im_module_init+0x7e/0x80 [bfa] bfad_init+0x23/0xff0 [bfa] do_one_initcall+0xdc/0x550 do_init_module+0x22d/0x6b0 load_module+0x4e96/0x5ff0 init_module_from_file+0xcd/0x130 idempotent_init_module+0x330/0x620 __x64_sys_finit_module+0xb3/0x110 do_syscall_64+0xc1/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f El problema anterior ocurre de la siguiente manera: bfad_init error = bfad_im_module_init() fc_release_transport(bfad_im_scsi_transport_template); if (error) goto ext; ext: bfad_im_module_exit(); fc_release_transport(bfad_im_scsi_transport_template); --&gt; Disparador de doble liberación No llame a bfad_im_module_exit() si bfad_im_module_init() falló."
    }
  ],
  "lastModified": "2026-06-17T08:08:38.740",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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              "versionEndExcluding": "4.19.325",
              "versionStartIncluding": "2.6.32"
            },
            {
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              "matchCriteriaId": "B5C644CC-2BD7-4E32-BC54-8DCC7ABE9935",
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            {
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