fkie_cve-2024-46849
Vulnerability from fkie_nvd
Published
2024-09-27 13:15
Modified
2024-11-08 16:15
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: meson: axg-card: fix 'use-after-free' Buffer 'card->dai_link' is reallocated in 'meson_card_reallocate_links()', so move 'pad' pointer initialization after this function when memory is already reallocated. Kasan bug report: ================================================================== BUG: KASAN: slab-use-after-free in axg_card_add_link+0x76c/0x9bc Read of size 8 at addr ffff000000e8b260 by task modprobe/356 CPU: 0 PID: 356 Comm: modprobe Tainted: G O 6.9.12-sdkernel #1 Call trace: dump_backtrace+0x94/0xec show_stack+0x18/0x24 dump_stack_lvl+0x78/0x90 print_report+0xfc/0x5c0 kasan_report+0xb8/0xfc __asan_load8+0x9c/0xb8 axg_card_add_link+0x76c/0x9bc [snd_soc_meson_axg_sound_card] meson_card_probe+0x344/0x3b8 [snd_soc_meson_card_utils] platform_probe+0x8c/0xf4 really_probe+0x110/0x39c __driver_probe_device+0xb8/0x18c driver_probe_device+0x108/0x1d8 __driver_attach+0xd0/0x25c bus_for_each_dev+0xe0/0x154 driver_attach+0x34/0x44 bus_add_driver+0x134/0x294 driver_register+0xa8/0x1e8 __platform_driver_register+0x44/0x54 axg_card_pdrv_init+0x20/0x1000 [snd_soc_meson_axg_sound_card] do_one_initcall+0xdc/0x25c do_init_module+0x10c/0x334 load_module+0x24c4/0x26cc init_module_from_file+0xd4/0x128 __arm64_sys_finit_module+0x1f4/0x41c invoke_syscall+0x60/0x188 el0_svc_common.constprop.0+0x78/0x13c do_el0_svc+0x30/0x40 el0_svc+0x38/0x78 el0t_64_sync_handler+0x100/0x12c el0t_64_sync+0x190/0x194
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4f9a71435953f941969a4f017e2357db62d85a86Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5a2cc2bb81399e9ebc72560541137eb04d61dc3d
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7d318166bf55e9029d56997c3b134f4ac2ae2607Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a33145f494e6cb82f3e018662cc7c4febf271f22
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e1a199ec31617242e1a0ea8f312341e682d0c037Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e43364f578cdc2f8083abbc0cb743ea55e827c29Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fb0530025d502cb79d2b2801b14a9d5261833f1a
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11
linux linux_kernel 6.11


To clipboard 

{
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    {
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: meson: axg-card: fix \u0027use-after-free\u0027\n\nBuffer \u0027card-\u003edai_link\u0027 is reallocated in \u0027meson_card_reallocate_links()\u0027,\nso move \u0027pad\u0027 pointer initialization after this function when memory is\nalready reallocated.\n\nKasan bug report:\n\n==================================================================\nBUG: KASAN: slab-use-after-free in axg_card_add_link+0x76c/0x9bc\nRead of size 8 at addr ffff000000e8b260 by task modprobe/356\n\nCPU: 0 PID: 356 Comm: modprobe Tainted: G O 6.9.12-sdkernel #1\nCall trace:\n dump_backtrace+0x94/0xec\n show_stack+0x18/0x24\n dump_stack_lvl+0x78/0x90\n print_report+0xfc/0x5c0\n kasan_report+0xb8/0xfc\n __asan_load8+0x9c/0xb8\n axg_card_add_link+0x76c/0x9bc [snd_soc_meson_axg_sound_card]\n meson_card_probe+0x344/0x3b8 [snd_soc_meson_card_utils]\n platform_probe+0x8c/0xf4\n really_probe+0x110/0x39c\n __driver_probe_device+0xb8/0x18c\n driver_probe_device+0x108/0x1d8\n __driver_attach+0xd0/0x25c\n bus_for_each_dev+0xe0/0x154\n driver_attach+0x34/0x44\n bus_add_driver+0x134/0x294\n driver_register+0xa8/0x1e8\n __platform_driver_register+0x44/0x54\n axg_card_pdrv_init+0x20/0x1000 [snd_soc_meson_axg_sound_card]\n do_one_initcall+0xdc/0x25c\n do_init_module+0x10c/0x334\n load_module+0x24c4/0x26cc\n init_module_from_file+0xd4/0x128\n __arm64_sys_finit_module+0x1f4/0x41c\n invoke_syscall+0x60/0x188\n el0_svc_common.constprop.0+0x78/0x13c\n do_el0_svc+0x30/0x40\n el0_svc+0x38/0x78\n el0t_64_sync_handler+0x100/0x12c\n el0t_64_sync+0x190/0x194"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ASoC: meson: axg-card: se corrige el problema \u0027use-after-free\u0027. El b\u00fafer \u0027card-\u0026gt;dai_link\u0027 se reasigna en \u0027meson_card_reallocate_links()\u0027, por lo que se mueve la inicializaci\u00f3n del puntero \u0027pad\u0027 despu\u00e9s de esta funci\u00f3n cuando la memoria ya est\u00e1 reasignada. Informe de error de Kasan: ===================================================================== ERROR: KASAN: slab-use-after-free en axg_card_add_link+0x76c/0x9bc Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff000000e8b260 por la tarea modprobe/356 CPU: 0 PID: 356 Comm: modprobe Contaminado: GO 6.9.12-sdkernel #1 Rastreo de llamadas: dump_backtrace+0x94/0xec show_stack+0x18/0x24 dump_stack_lvl+0x78/0x90 print_report+0xfc/0x5c0 kasan_report+0xb8/0xfc __asan_load8+0x9c/0xb8 axg_card_add_link+0x76c/0x9bc [snd_soc_meson_axg_sound_card] meson_card_probe+0x344/0x3b8 [snd_soc_meson_card_utils] platform_probe+0x8c/0xf4 really_probe+0x110/0x39c __driver_probe_device+0xb8/0x18c driver_probe_device+0x108/0x1d8 __driver_attach+0xd0/0x25c bus_for_each_dev+0xe0/0x154 driver_attach+0x34/0x44 bus_add_driver+0x134/0x294 registro_controlador+0xa8/0x1e8 __registro_controlador_plataforma+0x44/0x54 axg_card_pdrv_init+0x20/0x1000 [snd_soc_meson_axg_sound_card] hacer_una_llamada_inicio+0xdc/0x25c hacer_m\u00f3dulo_inicio+0x10c/0x334 cargar_m\u00f3dulo+0x24c4/0x26cc m\u00f3dulo_inicio_desde_archivo+0xd4/0x128 __arm64_sys_finit_module+0x1f4/0x41c invocar_llamada_al_sistema+0x60/0x188 el0_svc_common.constprop.0+0x78/0x13c hacer_el0_svc+0x30/0x40 el0_svc+0x38/0x78 el0t_64_sync_handler+0x100/0x12c el0t_64_sync+0x190/0x194"
    }
  ],
  "id": "CVE-2024-46849",
  "lastModified": "2024-11-08T16:15:23.603",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-09-27T13:15:16.723",
  "references": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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