CVE-2025-71095
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
net: stmmac: fix the crash issue for zero copy XDP_TX action
There is a crash issue when running zero copy XDP_TX action, the crash log is shown below.
For XDP_TX action, the xdp_buff is converted to xdp_frame by xdp_convert_buff_to_frame(). The memory type of the resulting xdp_frame depends on the memory type of the xdp_buff. For page pool based xdp_buff it produces xdp_frame with memory type MEM_TYPE_PAGE_POOL. For zero copy XSK pool based xdp_buff it produces xdp_frame with memory type MEM_TYPE_PAGE_ORDER0.
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However, stmmac_xdp_xmit_back() does not check the memory type and always uses the page pool type, this leads to invalid mappings and causes the crash. Therefore, check the xdp_buff memory type in stmmac_xdp_xmit_back() to fix this issue.
Detalles técnicos trazas, registros y código del informe original
[ 216.122464] Unable to handle kernel paging request at virtual address fffeffff80000000 [ 216.187524] Internal error: Oops: 0000000096000144 [#1] SMP [ 216.301694] Call trace: [ 216.304130] dcache_clean_poc+0x20/0x38 (P) [ 216.308308] __dma_sync_single_for_device+0x1bc/0x1e0 [ 216.313351] stmmac_xdp_xmit_xdpf+0x354/0x400 [ 216.317701] __stmmac_xdp_run_prog+0x164/0x368 [ 216.322139] stmmac_napi_poll_rxtx+0xba8/0xf00 [ 216.326576] __napi_poll+0x40/0x218 [ 216.408054] Kernel panic - not syncing: Oops: Fatal exception in interrupt
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: 0.28%
- Percentil entre todas las CVEs puntuadas: 19
- Fecha de la puntuación: 3/10/2026
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/3f7823219407f2f18044c2b72366a48810c5c821
- https://git.kernel.org/stable/c/45ee0462b88396a0bd1df1991f801c89994ea72b
- https://git.kernel.org/stable/c/4d0ceb7677e1c4616afb96abb4518f70b65abb0d
- https://git.kernel.org/stable/c/5e5988736a95b1de7f91b10ac2575454b70e4897
- https://git.kernel.org/stable/c/a48e232210009be50591fdea8ba7c07b0f566a13
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: fix the crash issue for zero copy XDP_TX action\n\nThere is a crash issue when running zero copy XDP_TX action, the crash\nlog is shown below.\n\n[ 216.122464] Unable to handle kernel paging request at virtual address fffeffff80000000\n[ 216.187524] Internal error: Oops: 0000000096000144 [#1] SMP\n[ 216.301694] Call trace:\n[ 216.304130] dcache_clean_poc+0x20/0x38 (P)\n[ 216.308308] __dma_sync_single_for_device+0x1bc/0x1e0\n[ 216.313351] stmmac_xdp_xmit_xdpf+0x354/0x400\n[ 216.317701] __stmmac_xdp_run_prog+0x164/0x368\n[ 216.322139] stmmac_napi_poll_rxtx+0xba8/0xf00\n[ 216.326576] __napi_poll+0x40/0x218\n[ 216.408054] Kernel panic - not syncing: Oops: Fatal exception in interrupt\n\nFor XDP_TX action, the xdp_buff is converted to xdp_frame by\nxdp_convert_buff_to_frame(). The memory type of the resulting xdp_frame\ndepends on the memory type of the xdp_buff. For page pool based xdp_buff\nit produces xdp_frame with memory type MEM_TYPE_PAGE_POOL. For zero copy\nXSK pool based xdp_buff it produces xdp_frame with memory type\nMEM_TYPE_PAGE_ORDER0. However, stmmac_xdp_xmit_back() does not check the\nmemory type and always uses the page pool type, this leads to invalid\nmappings and causes the crash. Therefore, check the xdp_buff memory type\nin stmmac_xdp_xmit_back() to fix this issue."
},
{
"lang": "es",
"value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nnet: stmmac: solucionar el problema de bloqueo para la acción XDP_TX de copia cero\n\nExiste un problema de bloqueo al ejecutar la acción XDP_TX de copia cero; el registro de bloqueo se muestra a continuación.\n\n[ 216.122464] No se puede manejar la solicitud de paginación del kernel en la dirección virtual fffeffff80000000\n[ 216.187524] Error interno: Oops: 0000000096000144 [#1] SMP\n[ 216.301694] Traza de llamadas:\n[ 216.304130] dcache_clean_poc+0x20/0x38 (P)\n[ 216.308308] __dma_sync_single_for_device+0x1bc/0x1e0\n[ 216.313351] stmmac_xdp_xmit_xdpf+0x354/0x400\n[ 216.317701] __stmmac_xdp_run_prog+0x164/0x368\n[ 216.322139] stmmac_napi_poll_rxtx+0xba8/0xf00\n[ 216.326576] __napi_poll+0x40/0x218\n[ 216.408054] Pánico del kernel - no sincronizando: Oops: Excepción fatal en interrupción\n\nPara la acción XDP_TX, el xdp_buff se convierte a xdp_frame mediante xdp_convert_buff_to_frame(). El tipo de memoria del xdp_frame resultante depende del tipo de memoria del xdp_buff. Para xdp_buff basado en pool de páginas, produce xdp_frame con tipo de memoria MEM_TYPE_PAGE_POOL. Para xdp_buff basado en pool XSK de copia cero, produce xdp_frame con tipo de memoria MEM_TYPE_PAGE_ORDER0. Sin embargo, stmmac_xdp_xmit_back() no verifica el tipo de memoria y siempre usa el tipo de pool de páginas, lo que lleva a mapeos inválidos y causa el bloqueo. Por lo tanto, verifique el tipo de memoria del xdp_buff en stmmac_xdp_xmit_back() para solucionar este problema."
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"lastModified": "2026-07-30T06:24:50.947",
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