CVE-2024-50236

Estado: ModificadaMedia (5.5)—

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

wifi: ath10k: Fix memory leak in management tx

In the current logic, memory is allocated for storing the MSDU context during management packet TX but this memory is not being freed during management TX completion. Similar leaks are seen in the management TX cleanup logic.

Kmemleak reports this problem as below,

Free the memory during completion and cleanup to fix the leak.

Protect the mgmt_pending_tx idr_remove() operation in ath10k_wmi_tlv_op_cleanup_mgmt_tx_send() using ar->data_lock similar to other instances.

Tested-on: WCN3990 hw1.0 SNOC WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1

Detalles técnicos trazas, registros y código del informe original

unreferenced object 0xffffff80b64ed250 (size 16):
  comm "kworker/u16:7", pid 148, jiffies 4294687130 (age 714.199s)
  hex dump (first 16 bytes):
    00 2b d8 d8 80 ff ff ff c4 74 e9 fd 07 00 00 00  .+.......t......
  backtrace:
    [<ffffffe6e7b245dc>] __kmem_cache_alloc_node+0x1e4/0x2d8
    [<ffffffe6e7adde88>] kmalloc_trace+0x48/0x110
    [<ffffffe6bbd765fc>] ath10k_wmi_tlv_op_gen_mgmt_tx_send+0xd4/0x1d8 [ath10k_core]
    [<ffffffe6bbd3eed4>] ath10k_mgmt_over_wmi_tx_work+0x134/0x298 [ath10k_core]
    [<ffffffe6e78d5974>] process_scheduled_works+0x1ac/0x400
    [<ffffffe6e78d60b8>] worker_thread+0x208/0x328
    [<ffffffe6e78dc890>] kthread+0x100/0x1c0
    [<ffffffe6e78166c0>] ret_from_fork+0x10/0x20

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Puntuación base: 5.5

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.26%
Percentil entre todas las CVEs puntuadas: 16
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).

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-401
CWE-401

Referencias

JSON original (NVD)

Mostrar

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath10k: Fix memory leak in management tx\n\nIn the current logic, memory is allocated for storing the MSDU context\nduring management packet TX but this memory is not being freed during\nmanagement TX completion. Similar leaks are seen in the management TX\ncleanup logic.\n\nKmemleak reports this problem as below,\n\nunreferenced object 0xffffff80b64ed250 (size 16):\n  comm \"kworker/u16:7\", pid 148, jiffies 4294687130 (age 714.199s)\n  hex dump (first 16 bytes):\n    00 2b d8 d8 80 ff ff ff c4 74 e9 fd 07 00 00 00  .+.......t......\n  backtrace:\n    [<ffffffe6e7b245dc>] __kmem_cache_alloc_node+0x1e4/0x2d8\n    [<ffffffe6e7adde88>] kmalloc_trace+0x48/0x110\n    [<ffffffe6bbd765fc>] ath10k_wmi_tlv_op_gen_mgmt_tx_send+0xd4/0x1d8 [ath10k_core]\n    [<ffffffe6bbd3eed4>] ath10k_mgmt_over_wmi_tx_work+0x134/0x298 [ath10k_core]\n    [<ffffffe6e78d5974>] process_scheduled_works+0x1ac/0x400\n    [<ffffffe6e78d60b8>] worker_thread+0x208/0x328\n    [<ffffffe6e78dc890>] kthread+0x100/0x1c0\n    [<ffffffe6e78166c0>] ret_from_fork+0x10/0x20\n\nFree the memory during completion and cleanup to fix the leak.\n\nProtect the mgmt_pending_tx idr_remove() operation in\nath10k_wmi_tlv_op_cleanup_mgmt_tx_send() using ar->data_lock similar to\nother instances.\n\nTested-on: WCN3990 hw1.0 SNOC WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: wifi: ath10k: Se corrige una pérdida de memoria en la transmisión de administración. En la lógica actual, se asigna memoria para almacenar el contexto MSDU durante la transmisión del paquete de administración, pero esta memoria no se libera durante la finalización de la transmisión de administración. Se observan pérdidas similares en la lógica de limpieza de la transmisión de administración. Kmemleak informa este problema de la siguiente manera: objeto sin referencia 0xffffff80b64ed250 (tamaño 16): comm \"kworker/u16:7\", pid 148, jiffies 4294687130 (edad 714.199s) volcado hexadecimal (primeros 16 bytes): 00 2b d8 d8 80 ff ff ff c4 74 e9 fd 07 00 00 00 .+.......t...... backtrace: [] __kmem_cache_alloc_node+0x1e4/0x2d8 [] kmalloc_trace+0x48/0x110 [] Libere la memoria durante la finalización y la limpieza para reparar la pérdida. Proteja la operación mgmt_pending_tx idr_remove() en ath10k_wmi_tlv_op_cleanup_mgmt_tx_send() mediante ar-&gt;data_lock de forma similar a otras instancias. Probado en: WCN3990 hw1.0 SNOC WLAN.HL.2.0-01387-QCAHLSWMTPLZ-1"
    }
  ],
  "lastModified": "2026-06-17T08:03:58.583",
  "configurations": [
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