CVE-2024-56609

Estado: ModificadaAlta (7.8)—

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

wifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb

Driver uses skb_queue_purge() to purge TX skb, but not report tx status causing "Have pending ack frames!" warning. Use ieee80211_purge_tx_queue() to correct this.

Since ieee80211_purge_tx_queue() doesn't take locks, to prevent racing between TX work and purge TX queue, flush and destroy TX work in advance.

Detalles técnicos trazas, registros y código del informe original

When removing kernel modules by:
   rmmod rtw88_8723cs rtw88_8703b rtw88_8723x rtw88_sdio rtw88_core

   wlan0: deauthenticating from aa:f5:fd:60:4c:a8 by local
     choice (Reason: 3=DEAUTH_LEAVING)
   ------------[ cut here ]------------
   Have pending ack frames!
   WARNING: CPU: 3 PID: 9232 at net/mac80211/main.c:1691
       ieee80211_free_ack_frame+0x5c/0x90 [mac80211]
   CPU: 3 PID: 9232 Comm: rmmod Tainted: G         C
       6.10.1-200.fc40.aarch64 #1
   Hardware name: pine64 Pine64 PinePhone Braveheart
      (1.1)/Pine64 PinePhone Braveheart (1.1), BIOS 2024.01 01/01/2024
   pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
   pc : ieee80211_free_ack_frame+0x5c/0x90 [mac80211]
   lr : ieee80211_free_ack_frame+0x5c/0x90 [mac80211]
   sp : ffff80008c1b37b0
   x29: ffff80008c1b37b0 x28: ffff000003be8000 x27: 0000000000000000
   x26: 0000000000000000 x25: ffff000003dc14b8 x24: ffff80008c1b37d0
   x23: ffff000000ff9f80 x22: 0000000000000000 x21: 000000007fffffff
   x20: ffff80007c7e93d8 x19: ffff00006e66f400 x18: 0000000000000000
   x17: ffff7ffffd2b3000 x16: ffff800083fc0000 x15: 0000000000000000
   x14: 0000000000000000 x13: 2173656d61726620 x12: 6b636120676e6964
   x11: 0000000000000000 x10: 000000000000005d x9 : ffff8000802af2b0
   x8 : ffff80008c1b3430 x7 : 0000000000000001 x6 : 0000000000000001
   x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
   x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000003be8000
   Call trace:
    ieee80211_free_ack_frame+0x5c/0x90 [mac80211]
    idr_for_each+0x74/0x110
    ieee80211_free_hw+0x44/0xe8 [mac80211]
    rtw_sdio_remove+0x9c/0xc0 [rtw88_sdio]
    sdio_bus_remove+0x44/0x180
    device_remove+0x54/0x90
    device_release_driver_internal+0x1d4/0x238
    driver_detach+0x54/0xc0
    bus_remove_driver+0x78/0x108
    driver_unregister+0x38/0x78
    sdio_unregister_driver+0x2c/0x40
    rtw_8723cs_driver_exit+0x18/0x1000 [rtw88_8723cs]
    __do_sys_delete_module.isra.0+0x190/0x338
    __arm64_sys_delete_module+0x1c/0x30
    invoke_syscall+0x74/0x100
    el0_svc_common.constprop.0+0x48/0xf0
    do_el0_svc+0x24/0x38
    el0_svc+0x3c/0x158
    el0t_64_sync_handler+0x120/0x138
    el0t_64_sync+0x194/0x198
   ---[ end trace 0000000000000000 ]---

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: 0.23%
Percentil entre todas las CVEs puntuadas: 12
Fecha de la puntuación: 5/10/2026

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 %

AV:L/PR:L sin UI permite escalada local (T1068). El fallo en la purga de TX causa DoS por negación del servicio de red (T1499.004) al generar WARNING y afectar la disponibilidad del módulo WiFi.

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

NVD-CWE-noinfo

Referencias

JSON original (NVD)

Mostrar

{
  "id": "CVE-2024-56609",
  "cveTags": [],
  "metrics": {
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "e3037485c68ec1a299ff41160d8fedbd4abc29b9",
              "lessThan": "4e8ce3978d704cb28678355d294e10a008b6230a",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e3037485c68ec1a299ff41160d8fedbd4abc29b9",
              "lessThan": "3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e3037485c68ec1a299ff41160d8fedbd4abc29b9",
              "lessThan": "9bca6528f20325d30c22236b23116f161d418f6d",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e3037485c68ec1a299ff41160d8fedbd4abc29b9",
              "lessThan": "3e5e4a801aaf4283390cc34959c6c48f910ca5ea",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/realtek/rtw88/sdio.c",
            "drivers/net/wireless/realtek/rtw88/usb.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.2"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.2",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.136",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.70",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.5",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/realtek/rtw88/sdio.c",
            "drivers/net/wireless/realtek/rtw88/usb.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2024-12-27T15:15:20.387",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/3d94c4b21966b49c3e26ceeefacaa11ff7ee6d68",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3e5e4a801aaf4283390cc34959c6c48f910ca5ea",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4e8ce3978d704cb28678355d294e10a008b6230a",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9bca6528f20325d30c22236b23116f161d418f6d",
      "tags": [
        "Patch"
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rtw88: use ieee80211_purge_tx_queue() to purge TX skb\n\nWhen removing kernel modules by:\n   rmmod rtw88_8723cs rtw88_8703b rtw88_8723x rtw88_sdio rtw88_core\n\nDriver uses skb_queue_purge() to purge TX skb, but not report tx status\ncausing \"Have pending ack frames!\" warning. Use ieee80211_purge_tx_queue()\nto correct this.\n\nSince ieee80211_purge_tx_queue() doesn't take locks, to prevent racing\nbetween TX work and purge TX queue, flush and destroy TX work in advance.\n\n   wlan0: deauthenticating from aa:f5:fd:60:4c:a8 by local\n     choice (Reason: 3=DEAUTH_LEAVING)\n   ------------[ cut here ]------------\n   Have pending ack frames!\n   WARNING: CPU: 3 PID: 9232 at net/mac80211/main.c:1691\n       ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n   CPU: 3 PID: 9232 Comm: rmmod Tainted: G         C\n       6.10.1-200.fc40.aarch64 #1\n   Hardware name: pine64 Pine64 PinePhone Braveheart\n      (1.1)/Pine64 PinePhone Braveheart (1.1), BIOS 2024.01 01/01/2024\n   pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n   pc : ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n   lr : ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n   sp : ffff80008c1b37b0\n   x29: ffff80008c1b37b0 x28: ffff000003be8000 x27: 0000000000000000\n   x26: 0000000000000000 x25: ffff000003dc14b8 x24: ffff80008c1b37d0\n   x23: ffff000000ff9f80 x22: 0000000000000000 x21: 000000007fffffff\n   x20: ffff80007c7e93d8 x19: ffff00006e66f400 x18: 0000000000000000\n   x17: ffff7ffffd2b3000 x16: ffff800083fc0000 x15: 0000000000000000\n   x14: 0000000000000000 x13: 2173656d61726620 x12: 6b636120676e6964\n   x11: 0000000000000000 x10: 000000000000005d x9 : ffff8000802af2b0\n   x8 : ffff80008c1b3430 x7 : 0000000000000001 x6 : 0000000000000001\n   x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n   x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000003be8000\n   Call trace:\n    ieee80211_free_ack_frame+0x5c/0x90 [mac80211]\n    idr_for_each+0x74/0x110\n    ieee80211_free_hw+0x44/0xe8 [mac80211]\n    rtw_sdio_remove+0x9c/0xc0 [rtw88_sdio]\n    sdio_bus_remove+0x44/0x180\n    device_remove+0x54/0x90\n    device_release_driver_internal+0x1d4/0x238\n    driver_detach+0x54/0xc0\n    bus_remove_driver+0x78/0x108\n    driver_unregister+0x38/0x78\n    sdio_unregister_driver+0x2c/0x40\n    rtw_8723cs_driver_exit+0x18/0x1000 [rtw88_8723cs]\n    __do_sys_delete_module.isra.0+0x190/0x338\n    __arm64_sys_delete_module+0x1c/0x30\n    invoke_syscall+0x74/0x100\n    el0_svc_common.constprop.0+0x48/0xf0\n    do_el0_svc+0x24/0x38\n    el0_svc+0x3c/0x158\n    el0t_64_sync_handler+0x120/0x138\n    el0t_64_sync+0x194/0x198\n   ---[ end trace 0000000000000000 ]---"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: rtw88: use ieee80211_purge_tx_queue() para purgar TX skb Al eliminar módulos del kernel mediante: rmmod rtw88_8723cs rtw88_8703b rtw88_8723x rtw88_sdio rtw88_core El controlador usa skb_queue_purge() para purgar TX skb, pero no informa el estado de la tx, lo que provoca la advertencia \"¡Tiene marcos de reconocimiento pendientes!\". Use ieee80211_purge_tx_queue() para corregir esto. Dado que ieee80211_purge_tx_queue() no toma bloqueos, para evitar ejecucións entre el trabajo de TX y la cola de purga de TX, vacíe y destruya el trabajo de TX con anticipación. wlan0: desautenticando desde aa:f5:fd:60:4c:a8 por elección local (Razón: 3=DEAUTH_LEAVING) ------------[ cortar aquí ]------------ ¡Hay marcos de reconocimiento pendientes! ADVERTENCIA: CPU: 3 PID: 9232 en net/mac80211/main.c:1691 ieee80211_free_ack_frame+0x5c/0x90 [mac80211] CPU: 3 PID: 9232 Comm: rmmod Contaminado: GC 6.10.1-200.fc40.aarch64 #1 Nombre del hardware: pine64 Pine64 PinePhone Braveheart (1.1)/Pine64 PinePhone Braveheart (1.1), BIOS 2024.01 01/01/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ieee80211_free_ack_frame+0x5c/0x90 [mac80211] lr : ieee80211_free_ack_frame+0x5c/0x90 [mac80211] sp : ffff80008c1b37b0 x29: ffff80008c1b37b0 x28: ffff000003be8000 x27: 0000000000000000 x26: 0000000000000000 x25: ffff000003dc14b8 x24: ffff80008c1b37d0 x23: ffff000000ff9f80 x22: 0000000000000000 x21: 000000007fffffff x20: ffff80007c7e93d8 x19: ffff00006e66f400 x18: 0000000000000000 x17: ffff7ffffd2b3000 x16: ffff800083fc0000 x15: 0000000000000000 x14: 0000000000000000 x13: 2173656d61726620 x12: 6b636120676e6964 x11: 000000000000000 x10: 000000000000005d x9: ffff8000802af2b0 x8: ffff80008c1b3430 x7: 00000000000000001 x6 : 0000000000000001 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000003be8000 Rastreo de llamadas: ieee80211_free_ack_frame+0x5c/0x90 [mac80211] idr_for_each+0x74/0x110 ieee80211_free_hw+0x44/0xe8 [mac80211] rtw_sdio_remove+0x9c/0xc0 [rtw88_sdio] sdio_bus_remove+0x44/0x180 device_remove+0x54/0x90 device_release_driver_internal+0x1d4/0x238 driver_detach+0x54/0xc0 bus_remove_driver+0x78/0x108 driver_unregister+0x38/0x78 sdio_unregister_driver+0x2c/0x40 rtw_8723cs_driver_exit+0x18/0x1000 [rtw88_8723cs] __do_sys_delete_module.isra.0+0x190/0x338 __arm64_sys_delete_module+0x1c/0x30 invocar_llamada_al_sistema+0x74/0x100 el0_svc_common.constprop.0+0x48/0xf0 do_el0_svc+0x24/0x38 el0_svc+0x3c/0x158 el0t_64_sync_handler+0x120/0x138 el0t_64_sync+0x194/0x198 ---[ fin de seguimiento 0000000000000000 ]---"
    }
  ],
  "lastModified": "2026-06-17T08:12:32.420",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "863DB97A-FEBB-437F-B15E-8D41C1CCDE93",
              "versionEndExcluding": "6.1.136",
              "versionStartIncluding": "5.2"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "51E6CFF2-92AA-4936-95AB-2D068168A696",
              "versionEndExcluding": "6.6.70",
              "versionStartIncluding": "6.2"
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9501D045-7A94-42CA-8B03-821BE94A65B7",
              "versionEndExcluding": "6.12.5",
              "versionStartIncluding": "6.7"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}