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vuln-cve/data/2025/71xxx/CVE-2025-71095.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-71095",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-01-13T15:30:19.650Z",
"datePublished": "2026-01-13T15:34:55.392Z",
"dateUpdated": "2026-11-10T12:38:56.541Z"
},
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"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-05T12:12:03.079Z"
},
"descriptions": [
{
"lang": "en",
"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."
}
],
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{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H",
"baseScore": 9.1,
"baseSeverity": "CRITICAL"
},
"scenarios": [
{
"lang": "en",
"value": "AV:N - An unauthenticated network peer can supply a frame that reaches the stmmac zero-copy receive path and XDP_TX action on a configured interface.\nAC:L - Once an AF_XDP zero-copy queue and suitable XDP program are active, a qualifying packet deterministically triggers the invalid mapping; no race or uncontrollable condition is required.\nPR:N - The administrative privileges needed to configure AF_XDP and XDP are a deployment prerequisite, while the remote attacker triggering the receive path requires no account or capability.\nUI:N - No victim action is required after the vulnerable networking configuration is active.\nS:U - The fault and resulting impacts remain within the host kernel and its resources, without crossing a VM, IOMMU, or separate security authority.\nC:H - On coherent direct-DMA systems, the invalid page-pool address can reach the TX descriptor and cause the NIC to read and emit unrelated physical memory; repeated allocations make substantial disclosure defensible.\nI:N - The erroneous mapping is used for TX DMA, which reads host memory, and the duplicate XSK-buffer return is guarded against reinsertion; no credible arbitrary-write primitive was found.\nA:H - The demonstrated invalid DMA synchronization causes an interrupt-context oops and kernel panic, and a remote peer can repeatedly send qualifying packets."
}
]
}
],
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"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
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"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
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"references": [
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"url": "https://git.kernel.org/stable/c/3f7823219407f2f18044c2b72366a48810c5c821"
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{
"url": "https://git.kernel.org/stable/c/4d0ceb7677e1c4616afb96abb4518f70b65abb0d"
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{
"url": "https://git.kernel.org/stable/c/45ee0462b88396a0bd1df1991f801c89994ea72b"
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{
"url": "https://git.kernel.org/stable/c/a48e232210009be50591fdea8ba7c07b0f566a13"
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"title": "net: stmmac: fix the crash issue for zero copy XDP_TX action",
"x_generator": {
"engine": "bippy-1.2.0"
}
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"adp": [
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"x_adpType": "supplier",
"providerMetadata": {
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"shortName": "siemens-SADP",
"dateUpdated": "2026-11-10T12:38:56.541Z"
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}
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