CVE-2025-38053
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
idpf: fix null-ptr-deref in idpf_features_check
idpf_features_check is used to validate the TX packet. skb header length is compared with the hardware supported value received from the device control plane. The value is stored in the adapter structure and to access it, vport pointer is used. During reset all the vports are released and the vport pointer that the netdev private structure points to is NULL.
To avoid null-ptr-deref, store the max header length value in netdev private structure. This also helps to cache the value and avoid accessing adapter pointer in hot path.
Detalles técnicos trazas, registros y código del informe original
BUG: kernel NULL pointer dereference, address: 0000000000000068 ... RIP: 0010:idpf_features_check+0x6d/0xe0 [idpf] Call Trace: <TASK> ? __die+0x23/0x70 ? page_fault_oops+0x154/0x520 ? exc_page_fault+0x76/0x190 ? asm_exc_page_fault+0x26/0x30 ? idpf_features_check+0x6d/0xe0 [idpf] netif_skb_features+0x88/0x310 validate_xmit_skb+0x2a/0x2b0 validate_xmit_skb_list+0x4c/0x70 sch_direct_xmit+0x19d/0x3a0 __dev_queue_xmit+0xb74/0xe70 ...
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: 0.19%
- Percentil entre todas las CVEs puntuadas: 8
- Fecha de la puntuación: 6/10/2026
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)
CWE
- CWE-476
Referencias
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nidpf: fix null-ptr-deref in idpf_features_check\n\nidpf_features_check is used to validate the TX packet. skb header\nlength is compared with the hardware supported value received from\nthe device control plane. The value is stored in the adapter structure\nand to access it, vport pointer is used. During reset all the vports\nare released and the vport pointer that the netdev private structure\npoints to is NULL.\n\nTo avoid null-ptr-deref, store the max header length value in netdev\nprivate structure. This also helps to cache the value and avoid\naccessing adapter pointer in hot path.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000068\n...\nRIP: 0010:idpf_features_check+0x6d/0xe0 [idpf]\nCall Trace:\n <TASK>\n ? __die+0x23/0x70\n ? page_fault_oops+0x154/0x520\n ? exc_page_fault+0x76/0x190\n ? asm_exc_page_fault+0x26/0x30\n ? idpf_features_check+0x6d/0xe0 [idpf]\n netif_skb_features+0x88/0x310\n validate_xmit_skb+0x2a/0x2b0\n validate_xmit_skb_list+0x4c/0x70\n sch_direct_xmit+0x19d/0x3a0\n __dev_queue_xmit+0xb74/0xe70\n ..."
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: idpf: corrección de null-ptr-deref en idpf_features_check idpf_features_check se utiliza para validar el paquete TX. La longitud del encabezado skb se compara con el valor admitido por el hardware recibido del plano de control del dispositivo. El valor se almacena en la estructura del adaptador y para acceder a él, se utiliza el puntero vport. Durante el reinicio, se liberan todos los vports y el puntero vport al que apunta la estructura privada netdev es NULL. Para evitar null-ptr-deref, almacene el valor de longitud máxima del encabezado en la estructura privada netdev. Esto también ayuda a almacenar en caché el valor y evitar el acceso al puntero del adaptador en la ruta activa. ERROR: desreferencia de puntero NULL del kernel, dirección: 0000000000000068 ... RIP: 0010:idpf_features_check+0x6d/0xe0 [idpf] Rastreo de llamadas: ? __die+0x23/0x70 ? page_fault_oops+0x154/0x520 ? exc_page_fault+0x76/0x190 ? asm_exc_page_fault+0x26/0x30 ? idpf_features_check+0x6d/0xe0 [idpf] netif_skb_features+0x88/0x310 validate_xmit_skb+0x2a/0x2b0 validate_xmit_skb_list+0x4c/0x70 sch_direct_xmit+0x19d/0x3a0 __dev_queue_xmit+0xb74/0xe70 ... "
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"lastModified": "2026-06-17T09:15:57.660",
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