{
  "id": "CVE-2024-56652",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-12-27T15:15:25.027",
  "lastModified": "2025-02-11T16:15:47.103",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/xe/reg_sr: Remove register pool\n\nThat pool implementation doesn't really work: if the krealloc happens to\nmove the memory and return another address, the entries in the xarray\nbecome invalid, leading to use-after-free later:\n\n\tBUG: KASAN: slab-use-after-free in xe_reg_sr_apply_mmio+0x570/0x760 [xe]\n\tRead of size 4 at addr ffff8881244b2590 by task modprobe/2753\n\n\tAllocated by task 2753:\n\t kasan_save_stack+0x39/0x70\n\t kasan_save_track+0x14/0x40\n\t kasan_save_alloc_info+0x37/0x60\n\t __kasan_kmalloc+0xc3/0xd0\n\t __kmalloc_node_track_caller_noprof+0x200/0x6d0\n\t krealloc_noprof+0x229/0x380\n\nSimplify the code to fix the bug. A better pooling strategy may be added\nback later if needed.\n\n(cherry picked from commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/xe/reg_sr: Eliminar el grupo de registros Esa implementaci\u00f3n del grupo no funciona realmente: si el krealloc mueve la memoria y devuelve otra direcci\u00f3n, las entradas en el xarray dejan de ser v\u00e1lidas, lo que lleva a un use-after-free m\u00e1s adelante: ERROR: KASAN: slab-use-after-free en xe_reg_sr_apply_mmio+0x570/0x760 [xe] Lectura de tama\u00f1o 4 en la direcci\u00f3n ffff8881244b2590 por la tarea modprobe/2753 Asignado por la tarea 2753: kasan_save_stack+0x39/0x70 kasan_save_track+0x14/0x40 kasan_save_alloc_info+0x37/0x60 __kasan_kmalloc+0xc3/0xd0 __kmalloc_node_track_caller_noprof+0x200/0x6d0 krealloc_noprof+0x229/0x380 Simplifique el c\u00f3digo para corregir el error. Es posible que se agregue una mejor estrategia de agrupamiento m\u00e1s adelante si es necesario. (seleccionada de el commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)"
    }
  ],
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          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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        "exploitabilityScore": 1.8,
        "impactScore": 5.9
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          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
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      "source": "nvd@nist.gov",
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    {
      "url": "https://git.kernel.org/stable/c/b0193a31a0ca5a0f9e60bb4a86537d46b98111b8",
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