CVE-2022-50055
Estado: AnalizadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
iavf: Fix adminq error handling
iavf_alloc_asq_bufs/iavf_alloc_arq_bufs allocates with dma_alloc_coherent memory for VF mailbox. Free DMA regions for both ASQ and ARQ in case error happens during configuration of ASQ/ARQ registers. Without this change it is possible to see when unloading interface: 74626.583369: dma_debug_device_change: device driver has pending DMA allocations while released from device [count=32] One of leaked entries details: [device address=0x0000000b27ff9000] [size=4096 bytes] [mapped with DMA_BIDIRECTIONAL] [mapped as coherent]
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
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/35c63581fdefdcbaeae8cded18908523252353ad
- https://git.kernel.org/stable/c/419831617ed349992c84344dbd9e627f9e68f842
- https://git.kernel.org/stable/c/4fe80492d53971d9a49f39f3c86d2d67c6f3638a
- https://git.kernel.org/stable/c/dab6b551f5ba4c79a0dd4970dd8533c37a7b100f
- https://git.kernel.org/stable/c/ff289f2be5899efd0e897d2b434a78e36df2c69b
JSON original (NVD)
Mostrar
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"integrityImpact": "NONE",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\niavf: Fix adminq error handling\n\niavf_alloc_asq_bufs/iavf_alloc_arq_bufs allocates with dma_alloc_coherent\nmemory for VF mailbox.\nFree DMA regions for both ASQ and ARQ in case error happens during\nconfiguration of ASQ/ARQ registers.\nWithout this change it is possible to see when unloading interface:\n74626.583369: dma_debug_device_change: device driver has pending DMA allocations while released from device [count=32]\nOne of leaked entries details: [device address=0x0000000b27ff9000] [size=4096 bytes] [mapped with DMA_BIDIRECTIONAL] [mapped as coherent]"
},
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"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iavf: Se corrige el error de administración de iavf_alloc_asq_bufs/iavf_alloc_arq_bufs al asignar memoria con dma_alloc_coherent para el buzón VF. Se liberan regiones DMA para ASQ y ARQ en caso de error durante la configuración de los registros ASQ/ARQ. Sin este cambio, al descargar la interfaz, se puede observar lo siguiente: 74626.583369: dma_debug_device_change: el controlador del dispositivo tiene asignaciones de DMA pendientes al ser liberado del dispositivo [count=32]. Una de las entradas filtradas detalla: [device address=0x0000000b27ff9000] [size=4096 bytes] [mapeado con DMA_BIDIRECTIONAL] [mapeado como coherente]"
}
],
"lastModified": "2026-06-17T05:22:39.187",
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