CVE-2024-49989

Estado: AnalizadaAlta (7.8)—

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

drm/amd/display: fix double free issue during amdgpu module unload

Flexible endpoints use DIGs from available inflexible endpoints, so only the encoders of inflexible links need to be freed. Otherwise, a double free issue may occur when unloading the amdgpu module.

Detalles técnicos trazas, registros y código del informe original

[  279.190523] RIP: 0010:__slab_free+0x152/0x2f0
[  279.190577] Call Trace:
[  279.190580]  <TASK>
[  279.190582]  ? show_regs+0x69/0x80
[  279.190590]  ? die+0x3b/0x90
[  279.190595]  ? do_trap+0xc8/0xe0
[  279.190601]  ? do_error_trap+0x73/0xa0
[  279.190605]  ? __slab_free+0x152/0x2f0
[  279.190609]  ? exc_invalid_op+0x56/0x70
[  279.190616]  ? __slab_free+0x152/0x2f0
[  279.190642]  ? asm_exc_invalid_op+0x1f/0x30
[  279.190648]  ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]
[  279.191096]  ? __slab_free+0x152/0x2f0
[  279.191102]  ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]
[  279.191469]  kfree+0x260/0x2b0
[  279.191474]  dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]
[  279.191821]  link_destroy+0xd7/0x130 [amdgpu]
[  279.192248]  dc_destruct+0x90/0x270 [amdgpu]
[  279.192666]  dc_destroy+0x19/0x40 [amdgpu]
[  279.193020]  amdgpu_dm_fini+0x16e/0x200 [amdgpu]
[  279.193432]  dm_hw_fini+0x26/0x40 [amdgpu]
[  279.193795]  amdgpu_device_fini_hw+0x24c/0x400 [amdgpu]
[  279.194108]  amdgpu_driver_unload_kms+0x4f/0x70 [amdgpu]
[  279.194436]  amdgpu_pci_remove+0x40/0x80 [amdgpu]
[  279.194632]  pci_device_remove+0x3a/0xa0
[  279.194638]  device_remove+0x40/0x70
[  279.194642]  device_release_driver_internal+0x1ad/0x210
[  279.194647]  driver_detach+0x4e/0xa0
[  279.194650]  bus_remove_driver+0x6f/0xf0
[  279.194653]  driver_unregister+0x33/0x60
[  279.194657]  pci_unregister_driver+0x44/0x90
[  279.194662]  amdgpu_exit+0x19/0x1f0 [amdgpu]
[  279.194939]  __do_sys_delete_module.isra.0+0x198/0x2f0
[  279.194946]  __x64_sys_delete_module+0x16/0x20
[  279.194950]  do_syscall_64+0x58/0x120
[  279.194954]  entry_SYSCALL_64_after_hwframe+0x6e/0x76
[  279.194980]  </TASK>

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: 0.26%
Percentil entre todas las CVEs puntuadas: 16
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 escalation75 %
Impacto principalT1499.004 Application or System Exploitationimpact65 %

Vulnerabilidad de double-free (CWE-415) en kernel Linux con acceso local (AV:L/PR:L) que causa crash/DoS durante descarga del módulo amdgpu; escalada de privilegios potencial en contexto local.

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

Threat Intelligence Program Filter Network Traffic Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (2)

Debian — Debian Linux Linux — Linux Kernel

CWE

CWE-415

Referencias

JSON original (NVD)

Mostrar

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      "description": [
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          "value": "CWE-415"
        }
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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix double free issue during amdgpu module unload\n\nFlexible endpoints use DIGs from available inflexible endpoints,\nso only the encoders of inflexible links need to be freed.\nOtherwise, a double free issue may occur when unloading the\namdgpu module.\n\n[  279.190523] RIP: 0010:__slab_free+0x152/0x2f0\n[  279.190577] Call Trace:\n[  279.190580]  <TASK>\n[  279.190582]  ? show_regs+0x69/0x80\n[  279.190590]  ? die+0x3b/0x90\n[  279.190595]  ? do_trap+0xc8/0xe0\n[  279.190601]  ? do_error_trap+0x73/0xa0\n[  279.190605]  ? __slab_free+0x152/0x2f0\n[  279.190609]  ? exc_invalid_op+0x56/0x70\n[  279.190616]  ? __slab_free+0x152/0x2f0\n[  279.190642]  ? asm_exc_invalid_op+0x1f/0x30\n[  279.190648]  ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]\n[  279.191096]  ? __slab_free+0x152/0x2f0\n[  279.191102]  ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]\n[  279.191469]  kfree+0x260/0x2b0\n[  279.191474]  dcn10_link_encoder_destroy+0x19/0x30 [amdgpu]\n[  279.191821]  link_destroy+0xd7/0x130 [amdgpu]\n[  279.192248]  dc_destruct+0x90/0x270 [amdgpu]\n[  279.192666]  dc_destroy+0x19/0x40 [amdgpu]\n[  279.193020]  amdgpu_dm_fini+0x16e/0x200 [amdgpu]\n[  279.193432]  dm_hw_fini+0x26/0x40 [amdgpu]\n[  279.193795]  amdgpu_device_fini_hw+0x24c/0x400 [amdgpu]\n[  279.194108]  amdgpu_driver_unload_kms+0x4f/0x70 [amdgpu]\n[  279.194436]  amdgpu_pci_remove+0x40/0x80 [amdgpu]\n[  279.194632]  pci_device_remove+0x3a/0xa0\n[  279.194638]  device_remove+0x40/0x70\n[  279.194642]  device_release_driver_internal+0x1ad/0x210\n[  279.194647]  driver_detach+0x4e/0xa0\n[  279.194650]  bus_remove_driver+0x6f/0xf0\n[  279.194653]  driver_unregister+0x33/0x60\n[  279.194657]  pci_unregister_driver+0x44/0x90\n[  279.194662]  amdgpu_exit+0x19/0x1f0 [amdgpu]\n[  279.194939]  __do_sys_delete_module.isra.0+0x198/0x2f0\n[  279.194946]  __x64_sys_delete_module+0x16/0x20\n[  279.194950]  do_syscall_64+0x58/0x120\n[  279.194954]  entry_SYSCALL_64_after_hwframe+0x6e/0x76\n[  279.194980]  </TASK>"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/amd/display: se soluciona el problema de doble liberación durante la descarga del módulo amdgpu Los endpoints flexibles usan DIG de endpoints inflexibles disponibles, por lo que solo es necesario liberar los codificadores de enlaces inflexibles. De lo contrario, puede ocurrir un problema de doble liberación al descargar el módulo amdgpu. [ 279.190523] RIP: 0010:__slab_free+0x152/0x2f0 [ 279.190577] Seguimiento de llamadas: [ 279.190580]  [ 279.190582] ? show_regs+0x69/0x80 [ 279.190590] ? die+0x3b/0x90 [ 279.190595] ? do_trap+0xc8/0xe0 [279.190601]? do_error_trap+0x73/0xa0 [279.190605]? __slab_free+0x152/0x2f0 [279.190609]? exc_invalid_op+0x56/0x70 [ 279.190616] ? __slab_free+0x152/0x2f0 [ 279.190642] ? asm_exc_invalid_op+0x1f/0x30 [ 279.190648] ? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu] [ 279.191096] ? __slab_free+0x152/0x2f0 [279.191102]? dcn10_link_encoder_destroy+0x19/0x30 [amdgpu] [ 279.191469] kfree+0x260/0x2b0 [ 279.191474] dcn10_link_encoder_destroy+0x19/0x30 [amdgpu] [ 279.191821] /0x130 [amdgpu] [ 279.192248] dc_destruct+0x90/0x270 [amdgpu] [ 279.192666] dc_destroy+0x19/0x40 [amdgpu] [ 279.193020] amdgpu_dm_fini+0x16e/0x200 [amdgpu] [ 279.193432] dm_hw_fini+0x26/0x40 [amdgpu] [ 279.193795] amdgpu_device_fini_hw+0x24c/0x400 [amdgpu] [ 279.194108] amdgpu_driver_unload_kms+0x4f/0x70 [amdgpu] [ 279.194436] amdgpu_pci_remove+0x40/0x80 [amdgpu] [ 279.194632] pci_device_remove+0x3a/0xa0 [ 279.194638] device_remove+0x40/0x70 [ 279.194642] device_release_driver_internal+0x1ad/0x210 [ 279.194647] driver_detach+0x4e/0xa0 [ 279.194650] bus_remove_driver+0x6f/0xf0 [ 279.194653] driver_unregister+0x33/0x60 [ 279.194657] ister_driver+0x44/0x90 [ 279.194662] amdgpu_exit+0x19/0x1f0 [amdgpu] [ 279.194939 ] __do_sys_delete_module.isra.0+0x198/0x2f0 [ 279.194946] __x64_sys_delete_module+0x16/0x20 [ 279.194950] do_syscall_64+0x58/0x120 [ 279.194954] Entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 279.194980] "
    }
  ],
  "lastModified": "2026-06-17T08:00:53.517",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
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}