{"id":"CVE-2025-71095","title":"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]…","summary":"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]…","severity":"critical","cvss":9.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 5.13.1, < 6.1.160","linux_kernel >= 6.2, < 6.6.120","linux_kernel >= 6.7, < 6.12.64","linux_kernel >= 6.13, < 6.18.4","linux_kernel = 5.13","linux_kernel = 6.19"],"patched":["linux_kernel 6.18.4"],"published":"2026-01-13","updated":"2026-10-15","sourceUpdated":"2026-10-15T02:18:19.260","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-71095","references":[{"url":"https://git.kernel.org/stable/c/3f7823219407f2f18044c2b72366a48810c5c821","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/45ee0462b88396a0bd1df1991f801c89994ea72b","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4d0ceb7677e1c4616afb96abb4518f70b65abb0d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5e5988736a95b1de7f91b10ac2575454b70e4897","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a48e232210009be50591fdea8ba7c07b0f566a13","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-019113.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"},{"url":"https://cert-portal.siemens.com/productcert/html/ssa-457936.html","label":"0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"}],"tags":["nvd","cve.org"],"epss":0.00293,"epssPercentile":0.21809,"ingestedAt":"2026-09-08T15:33:26.995Z","slug":"CVE-2025-71095","body":"## Overview\n\nIn 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.\n\n## Affected\n\n- `linux_kernel >= 5.13.1, < 6.1.160`\n- `linux_kernel >= 6.2, < 6.6.120`\n- `linux_kernel >= 6.7, < 6.12.64`\n- `linux_kernel >= 6.13, < 6.18.4`\n- `linux_kernel = 5.13`\n- `linux_kernel = 6.19`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 6.18.4`","depth":"midnight","depthScore":50,"depthScoreParts":{"impact":50.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}