CVE-2024-46849
Estado: AnalizadaAlta (7.8)—
Detalles técnicos trazas, registros y código del informe original
En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ASoC: meson: axg-card: se corrige el problema 'use-after-free'. El búfer 'card->dai_link' se reasigna en 'meson_card_reallocate_links()', por lo que se mueve la inicialización del puntero 'pad' después de esta función cuando la memoria ya está reasignada. Informe de error de Kasan: ===================================================================== ERROR: KASAN: slab-use-after-free en axg_card_add_link+0x76c/0x9bc Lectura de tamaño 8 en la dirección 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_módulo_inicio+0x10c/0x334 cargar_módulo+0x24c4/0x26cc módulo_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
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: 0.25%
- Percentil entre todas las CVEs puntuadas: 15
- Fecha de la puntuación: 8/10/2026
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).
Tecnologías afectadas (2)
CWE
- CWE-416
Referencias
- https://git.kernel.org/stable/c/4f9a71435953f941969a4f017e2357db62d85a86
- https://git.kernel.org/stable/c/5a2cc2bb81399e9ebc72560541137eb04d61dc3d
- https://git.kernel.org/stable/c/7d318166bf55e9029d56997c3b134f4ac2ae2607
- https://git.kernel.org/stable/c/a33145f494e6cb82f3e018662cc7c4febf271f22
- https://git.kernel.org/stable/c/e1a199ec31617242e1a0ea8f312341e682d0c037
- https://git.kernel.org/stable/c/e43364f578cdc2f8083abbc0cb743ea55e827c29
- https://git.kernel.org/stable/c/fb0530025d502cb79d2b2801b14a9d5261833f1a
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
JSON original (NVD)
Mostrar
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"timestamp": "2024-09-29T13:58:41.870222Z"
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"integrityImpact": "HIGH",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "HIGH",
"privilegesRequired": "LOW",
"confidentialityImpact": "HIGH"
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"exploitabilityScore": 1.8
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"weaknesses": [
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"type": "Primary",
"source": "nvd@nist.gov",
"description": [
{
"lang": "en",
"value": "CWE-416"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: meson: axg-card: fix 'use-after-free'\n\nBuffer 'card->dai_link' is reallocated in 'meson_card_reallocate_links()',\nso move 'pad' 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 'use-after-free'. El búfer 'card->dai_link' se reasigna en 'meson_card_reallocate_links()', por lo que se mueve la inicialización del puntero 'pad' después de esta función cuando la memoria ya está reasignada. Informe de error de Kasan: ===================================================================== ERROR: KASAN: slab-use-after-free en axg_card_add_link+0x76c/0x9bc Lectura de tamaño 8 en la dirección 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_módulo_inicio+0x10c/0x334 cargar_módulo+0x24c4/0x26cc módulo_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"
}
],
"lastModified": "2026-06-17T07:56:04.630",
"configurations": [
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