CVE-2022-49489

Estado: AnalizadaAlta (7.8)—

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

drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume

Patchwork: https://patchwork.freedesktop.org/patch/483255/ [DB: fixed Fixes tag]

Detalles técnicos trazas, registros y código del informe original

BUG: Unable to handle kernel paging request at virtual address 006b6b6b6b6b6be3

Call trace:
  dpu_vbif_init_memtypes+0x40/0xb8
  dpu_runtime_resume+0xcc/0x1c0
  pm_generic_runtime_resume+0x30/0x44
  __genpd_runtime_resume+0x68/0x7c
  genpd_runtime_resume+0x134/0x258
  __rpm_callback+0x98/0x138
  rpm_callback+0x30/0x88
  rpm_resume+0x36c/0x49c
  __pm_runtime_resume+0x80/0xb0
  dpu_core_irq_uninstall+0x30/0xb0
  dpu_irq_uninstall+0x18/0x24
  msm_drm_uninit+0xd8/0x16c

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 principalT1499.004 Application or System Exploitationimpact75 %

Vulnerabilidad local (AV:L, PR:L) sin interacción que causa use-after-free en kernel, permitiendo denegación de servicio o ejecución de código privilegiado en runtime resume del controlador DRM/MSM.

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 (1)

Linux — Linux Kernel

CWE

CWE-416

Referencias

JSON original (NVD)

Mostrar

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm runtime resume\n\nBUG: Unable to handle kernel paging request at virtual address 006b6b6b6b6b6be3\n\nCall trace:\n  dpu_vbif_init_memtypes+0x40/0xb8\n  dpu_runtime_resume+0xcc/0x1c0\n  pm_generic_runtime_resume+0x30/0x44\n  __genpd_runtime_resume+0x68/0x7c\n  genpd_runtime_resume+0x134/0x258\n  __rpm_callback+0x98/0x138\n  rpm_callback+0x30/0x88\n  rpm_resume+0x36c/0x49c\n  __pm_runtime_resume+0x80/0xb0\n  dpu_core_irq_uninstall+0x30/0xb0\n  dpu_irq_uninstall+0x18/0x24\n  msm_drm_uninit+0xd8/0x16c\n\nPatchwork: https://patchwork.freedesktop.org/patch/483255/\n[DB: fixed Fixes tag]"
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      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/msm/disp/dpu1: establecer la configuración de hardware de vbif en NULL para evitar su uso después de liberar memoria durante la reanudación del tiempo de ejecución de pm ERROR: No se puede gestionar la solicitud de paginación del kernel en la dirección virtual 006b6b6b6b6b6be3 Call trace: dpu_vbif_init_memtypes+0x40/0xb8 dpu_runtime_resume+0xcc/0x1c0 pm_generic_runtime_resume+0x30/0x44 __genpd_runtime_resume+0x68/0x7c genpd_runtime_resume+0x134/0x258 __rpm_callback+0x98/0x138 rpm_callback+0x30/0x88 rpm_resume+0x36c/0x49c __pm_runtime_resume+0x80/0xb0 dpu_core_irq_uninstall+0x30/0xb0 dpu_irq_uninstall+0x18/0x24 msm_drm_uninit+0xd8/0x16c Patchwork: https://patchwork.freedesktop.org/patch/483255/ [DB: fixed Fixes tag] "
    }
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