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CVE-2025-21960 (GCVE-0-2025-21960)

Vulnerability from cvelistv5 – Published: 2025-04-01 15:46 – Updated: 2026-08-05 11:55
VLAI
Title
eth: bnxt: do not update checksum in bnxt_xdp_build_skb()
Summary
In the Linux kernel, the following vulnerability has been resolved: eth: bnxt: do not update checksum in bnxt_xdp_build_skb() The bnxt_rx_pkt() updates ip_summed value at the end if checksum offload is enabled. When the XDP-MB program is attached and it returns XDP_PASS, the bnxt_xdp_build_skb() is called to update skb_shared_info. The main purpose of bnxt_xdp_build_skb() is to update skb_shared_info, but it updates ip_summed value too if checksum offload is enabled. This is actually duplicate work. When the bnxt_rx_pkt() updates ip_summed value, it checks if ip_summed is CHECKSUM_NONE or not. It means that ip_summed should be CHECKSUM_NONE at this moment. But ip_summed may already be updated to CHECKSUM_UNNECESSARY in the XDP-MB-PASS path. So the by skb_checksum_none_assert() WARNS about it. This is duplicate work and updating ip_summed in the bnxt_xdp_build_skb() is not needed. Splat looks like: WARNING: CPU: 3 PID: 5782 at ./include/linux/skbuff.h:5155 bnxt_rx_pkt+0x479b/0x7610 [bnxt_en] Modules linked in: bnxt_re bnxt_en rdma_ucm rdma_cm iw_cm ib_cm ib_uverbs veth xt_nat xt_tcpudp xt_conntrack nft_chain_nat xt_MASQUERADE nf_] CPU: 3 UID: 0 PID: 5782 Comm: socat Tainted: G W 6.14.0-rc4+ #27 Tainted: [W]=WARN Hardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021 RIP: 0010:bnxt_rx_pkt+0x479b/0x7610 [bnxt_en] Code: 54 24 0c 4c 89 f1 4c 89 ff c1 ea 1f ff d3 0f 1f 00 49 89 c6 48 85 c0 0f 84 4c e5 ff ff 48 89 c7 e8 ca 3d a0 c8 e9 8f f4 ff ff <0f> 0b f RSP: 0018:ffff88881ba09928 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 00000000c7590303 RCX: 0000000000000000 RDX: 1ffff1104e7d1610 RSI: 0000000000000001 RDI: ffff8881c91300b8 RBP: ffff88881ba09b28 R08: ffff888273e8b0d0 R09: ffff888273e8b070 R10: ffff888273e8b010 R11: ffff888278b0f000 R12: ffff888273e8b080 R13: ffff8881c9130e00 R14: ffff8881505d3800 R15: ffff888273e8b000 FS: 00007f5a2e7be080(0000) GS:ffff88881ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff2e708ff8 CR3: 000000013e3b0000 CR4: 00000000007506f0 PKRU: 55555554 Call Trace: <IRQ> ? __warn+0xcd/0x2f0 ? bnxt_rx_pkt+0x479b/0x7610 ? report_bug+0x326/0x3c0 ? handle_bug+0x53/0xa0 ? exc_invalid_op+0x14/0x50 ? asm_exc_invalid_op+0x16/0x20 ? bnxt_rx_pkt+0x479b/0x7610 ? bnxt_rx_pkt+0x3e41/0x7610 ? __pfx_bnxt_rx_pkt+0x10/0x10 ? napi_complete_done+0x2cf/0x7d0 __bnxt_poll_work+0x4e8/0x1220 ? __pfx___bnxt_poll_work+0x10/0x10 ? __pfx_mark_lock.part.0+0x10/0x10 bnxt_poll_p5+0x36a/0xfa0 ? __pfx_bnxt_poll_p5+0x10/0x10 __napi_poll.constprop.0+0xa0/0x440 net_rx_action+0x899/0xd00 ... Following ping.py patch adds xdp-mb-pass case. so ping.py is going to be able to reproduce this issue.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1dc4c557bfedfcdf7fc0c46795857773b7ad66e7 , < e8e3e03d69f2420eaa578199a65d281c58867105 (git)
Affected: 1dc4c557bfedfcdf7fc0c46795857773b7ad66e7 , < ee086c8e775f9690282e3d26471dbcfd5dad5a6a (git)
Affected: 1dc4c557bfedfcdf7fc0c46795857773b7ad66e7 , < 5b57ed14a1b85e7ab0074d9668a0baa6c94826c7 (git)
Affected: 1dc4c557bfedfcdf7fc0c46795857773b7ad66e7 , < 44578bc6460b8fca530fc7bd5897c115d9bd27e2 (git)
Affected: 1dc4c557bfedfcdf7fc0c46795857773b7ad66e7 , < c03e7d05aa0e2f7e9a9ce5ad8a12471a53f941dc (git)
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Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.1.132 , ≤ 6.1.* (semver)
Unaffected: 6.6.84 , ≤ 6.6.* (semver)
Unaffected: 6.12.20 , ≤ 6.12.* (semver)
Unaffected: 6.13.8 , ≤ 6.13.* (semver)
Unaffected: 6.14 , ≤ * (original_commit_for_fix)
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{
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          "dateUpdated": "2025-11-03T19:40:02.778Z",
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        "references": [
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            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
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        "title": "CVE Program Container"
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          "programFiles": [
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            "drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c",
            "drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.h"
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\neth: bnxt: do not update checksum in bnxt_xdp_build_skb()\n\nThe bnxt_rx_pkt() updates ip_summed value at the end if checksum offload\nis enabled.\nWhen the XDP-MB program is attached and it returns XDP_PASS, the\nbnxt_xdp_build_skb() is called to update skb_shared_info.\nThe main purpose of bnxt_xdp_build_skb() is to update skb_shared_info,\nbut it updates ip_summed value too if checksum offload is enabled.\nThis is actually duplicate work.\n\nWhen the bnxt_rx_pkt() updates ip_summed value, it checks if ip_summed\nis CHECKSUM_NONE or not.\nIt means that ip_summed should be CHECKSUM_NONE at this moment.\nBut ip_summed may already be updated to CHECKSUM_UNNECESSARY in the\nXDP-MB-PASS path.\nSo the by skb_checksum_none_assert() WARNS about it.\n\nThis is duplicate work and updating ip_summed in the\nbnxt_xdp_build_skb() is not needed.\n\nSplat looks like:\nWARNING: CPU: 3 PID: 5782 at ./include/linux/skbuff.h:5155 bnxt_rx_pkt+0x479b/0x7610 [bnxt_en]\nModules linked in: bnxt_re bnxt_en rdma_ucm rdma_cm iw_cm ib_cm ib_uverbs veth xt_nat xt_tcpudp xt_conntrack nft_chain_nat xt_MASQUERADE nf_]\nCPU: 3 UID: 0 PID: 5782 Comm: socat Tainted: G        W          6.14.0-rc4+ #27\nTainted: [W]=WARN\nHardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\nRIP: 0010:bnxt_rx_pkt+0x479b/0x7610 [bnxt_en]\nCode: 54 24 0c 4c 89 f1 4c 89 ff c1 ea 1f ff d3 0f 1f 00 49 89 c6 48 85 c0 0f 84 4c e5 ff ff 48 89 c7 e8 ca 3d a0 c8 e9 8f f4 ff ff \u003c0f\u003e 0b f\nRSP: 0018:ffff88881ba09928 EFLAGS: 00010202\nRAX: 0000000000000000 RBX: 00000000c7590303 RCX: 0000000000000000\nRDX: 1ffff1104e7d1610 RSI: 0000000000000001 RDI: ffff8881c91300b8\nRBP: ffff88881ba09b28 R08: ffff888273e8b0d0 R09: ffff888273e8b070\nR10: ffff888273e8b010 R11: ffff888278b0f000 R12: ffff888273e8b080\nR13: ffff8881c9130e00 R14: ffff8881505d3800 R15: ffff888273e8b000\nFS:  00007f5a2e7be080(0000) GS:ffff88881ba00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007fff2e708ff8 CR3: 000000013e3b0000 CR4: 00000000007506f0\nPKRU: 55555554\nCall Trace:\n \u003cIRQ\u003e\n ? __warn+0xcd/0x2f0\n ? bnxt_rx_pkt+0x479b/0x7610\n ? report_bug+0x326/0x3c0\n ? handle_bug+0x53/0xa0\n ? exc_invalid_op+0x14/0x50\n ? asm_exc_invalid_op+0x16/0x20\n ? bnxt_rx_pkt+0x479b/0x7610\n ? bnxt_rx_pkt+0x3e41/0x7610\n ? __pfx_bnxt_rx_pkt+0x10/0x10\n ? napi_complete_done+0x2cf/0x7d0\n __bnxt_poll_work+0x4e8/0x1220\n ? __pfx___bnxt_poll_work+0x10/0x10\n ? __pfx_mark_lock.part.0+0x10/0x10\n bnxt_poll_p5+0x36a/0xfa0\n ? __pfx_bnxt_poll_p5+0x10/0x10\n __napi_poll.constprop.0+0xa0/0x440\n net_rx_action+0x899/0xd00\n...\n\nFollowing ping.py patch adds xdp-mb-pass case. so ping.py is going\nto be able to reproduce this issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:N - The vulnerable code is the bnxt_en receive path, reached purely by processing an inbound packet in NAPI/softirq context with no local access required. Jumbo frames of the required size are routable within datacenter fabrics and cloud VPCs, so an off-segment remote peer can deliver the triggering packet.\nAC:L - In an affected deployment the attacker triggers the assertion deterministically with a single ordinary oversized TCP/UDP packet carrying a valid L4 checksum \u2014 there is no race to win, no memory layout to groom, and no victim state to line up. The XDP-MB program and jumbo MTU are properties of whether the target is vulnerable at all, not extra effort the attacker must expend.\nPR:N - The trigger is an unauthenticated raw packet consumed by the NIC driver before any protocol-level authentication or socket ownership check. The attacker needs no account, credential, or capability on the target.\nUI:N - The packet is processed automatically by the NAPI poll loop as soon as it arrives on the wire. No administrator or user action is needed at exploitation time.\nS:U - The fault and its consequences are confined to the kernel of the receiving host, with no crossing of a VM, IOMMU, or sandbox boundary. This is a standard in-kernel driver defect.\nC:N - The defect is a redundant store of the exact value the driver writes moments later, so no out-of-bounds or freed memory is ever read and nothing is returned to the attacker. The remote attacker who triggers the splat has no channel to read the resulting dmesg output.\nI:N - No attacker-controlled data is written anywhere; the duplicated ip_summed/csum_level assignment stores the same hardware-derived values that bnxt_rx_pkt() stores unconditionally. There is no OOB write, type confusion, or control-flow primitive.\nA:H - Every qualifying inbound packet drives the kernel into a WARN splat in softirq context, which is an immediate kernel panic on the widely used panic_on_warn=1 configuration, taking the whole host down. Even short of panic it taints the kernel and aborts orderly processing from the interrupt path."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T11:55:39.009Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e8e3e03d69f2420eaa578199a65d281c58867105"
        },
        {
          "url": "https://git.kernel.org/stable/c/ee086c8e775f9690282e3d26471dbcfd5dad5a6a"
        },
        {
          "url": "https://git.kernel.org/stable/c/5b57ed14a1b85e7ab0074d9668a0baa6c94826c7"
        },
        {
          "url": "https://git.kernel.org/stable/c/44578bc6460b8fca530fc7bd5897c115d9bd27e2"
        },
        {
          "url": "https://git.kernel.org/stable/c/c03e7d05aa0e2f7e9a9ce5ad8a12471a53f941dc"
        }
      ],
      "title": "eth: bnxt: do not update checksum in bnxt_xdp_build_skb()",
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        "engine": "bippy-1.2.0"
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    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21960",
    "datePublished": "2025-04-01T15:46:58.291Z",
    "dateReserved": "2024-12-29T08:45:45.795Z",
    "dateUpdated": "2026-08-05T11:55:39.009Z",
    "state": "PUBLISHED"
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  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-21960",
      "date": "2026-09-15",
      "epss": "0.00509",
      "percentile": "0.41984"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21960\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-04-01T16:15:27.230\",\"lastModified\":\"2026-07-30T06:21:59.720\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\neth: bnxt: do not update checksum in bnxt_xdp_build_skb()\\n\\nThe bnxt_rx_pkt() updates ip_summed value at the end if checksum offload\\nis enabled.\\nWhen the XDP-MB program is attached and it returns XDP_PASS, the\\nbnxt_xdp_build_skb() is called to update skb_shared_info.\\nThe main purpose of bnxt_xdp_build_skb() is to update skb_shared_info,\\nbut it updates ip_summed value too if checksum offload is enabled.\\nThis is actually duplicate work.\\n\\nWhen the bnxt_rx_pkt() updates ip_summed value, it checks if ip_summed\\nis CHECKSUM_NONE or not.\\nIt means that ip_summed should be CHECKSUM_NONE at this moment.\\nBut ip_summed may already be updated to CHECKSUM_UNNECESSARY in the\\nXDP-MB-PASS path.\\nSo the by skb_checksum_none_assert() WARNS about it.\\n\\nThis is duplicate work and updating ip_summed in the\\nbnxt_xdp_build_skb() is not needed.\\n\\nSplat looks like:\\nWARNING: CPU: 3 PID: 5782 at ./include/linux/skbuff.h:5155 bnxt_rx_pkt+0x479b/0x7610 [bnxt_en]\\nModules linked in: bnxt_re bnxt_en rdma_ucm rdma_cm iw_cm ib_cm ib_uverbs veth xt_nat xt_tcpudp xt_conntrack nft_chain_nat xt_MASQUERADE nf_]\\nCPU: 3 UID: 0 PID: 5782 Comm: socat Tainted: G        W          6.14.0-rc4+ #27\\nTainted: [W]=WARN\\nHardware name: ASUS System Product Name/PRIME Z690-P D4, BIOS 0603 11/01/2021\\nRIP: 0010:bnxt_rx_pkt+0x479b/0x7610 [bnxt_en]\\nCode: 54 24 0c 4c 89 f1 4c 89 ff c1 ea 1f ff d3 0f 1f 00 49 89 c6 48 85 c0 0f 84 4c e5 ff ff 48 89 c7 e8 ca 3d a0 c8 e9 8f f4 ff ff \u003c0f\u003e 0b f\\nRSP: 0018:ffff88881ba09928 EFLAGS: 00010202\\nRAX: 0000000000000000 RBX: 00000000c7590303 RCX: 0000000000000000\\nRDX: 1ffff1104e7d1610 RSI: 0000000000000001 RDI: ffff8881c91300b8\\nRBP: ffff88881ba09b28 R08: ffff888273e8b0d0 R09: ffff888273e8b070\\nR10: ffff888273e8b010 R11: ffff888278b0f000 R12: ffff888273e8b080\\nR13: ffff8881c9130e00 R14: ffff8881505d3800 R15: ffff888273e8b000\\nFS:  00007f5a2e7be080(0000) GS:ffff88881ba00000(0000) knlGS:0000000000000000\\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00007fff2e708ff8 CR3: 000000013e3b0000 CR4: 00000000007506f0\\nPKRU: 55555554\\nCall Trace:\\n \u003cIRQ\u003e\\n ? __warn+0xcd/0x2f0\\n ? bnxt_rx_pkt+0x479b/0x7610\\n ? report_bug+0x326/0x3c0\\n ? handle_bug+0x53/0xa0\\n ? exc_invalid_op+0x14/0x50\\n ? asm_exc_invalid_op+0x16/0x20\\n ? bnxt_rx_pkt+0x479b/0x7610\\n ? bnxt_rx_pkt+0x3e41/0x7610\\n ? __pfx_bnxt_rx_pkt+0x10/0x10\\n ? napi_complete_done+0x2cf/0x7d0\\n __bnxt_poll_work+0x4e8/0x1220\\n ? __pfx___bnxt_poll_work+0x10/0x10\\n ? __pfx_mark_lock.part.0+0x10/0x10\\n bnxt_poll_p5+0x36a/0xfa0\\n ? __pfx_bnxt_poll_p5+0x10/0x10\\n __napi_poll.constprop.0+0xa0/0x440\\n net_rx_action+0x899/0xd00\\n...\\n\\nFollowing ping.py patch adds xdp-mb-pass case. so ping.py is going\\nto be able to reproduce this issue.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: eth: bnxt: no actualice la suma de comprobaci\u00f3n en bnxt_xdp_build_skb() El bnxt_rx_pkt() actualiza el valor de ip_summed al final si la descarga de suma de comprobaci\u00f3n est\u00e1 habilitada. Cuando se adjunta el programa XDP-MB y devuelve XDP_PASS, se llama a bnxt_xdp_build_skb() para actualizar skb_shared_info. El prop\u00f3sito principal de bnxt_xdp_build_skb() es actualizar skb_shared_info, pero tambi\u00e9n actualiza el valor de ip_summed si la descarga de suma de comprobaci\u00f3n est\u00e1 habilitada. En realidad, esto es trabajo duplicado. Cuando bnxt_rx_pkt() actualiza el valor de ip_summed, verifica si ip_summed es CHECKSUM_NONE o no. Significa que ip_summed deber\u00eda ser CHECKSUM_NONE en este momento. Pero es posible que ip_summed ya est\u00e9 actualizado a CHECKSUM_UNNECESSARY en la ruta XDP-MB-PASS. Por lo tanto, skb_checksum_none_assert() advierte al respecto. Esto implica trabajo duplicado y no es necesario actualizar ip_summed en bnxt_xdp_build_skb(). El mensaje aparece as\u00ed: ADVERTENCIA: CPU: 3 PID: 5782 en ./include/linux/skbuff.h:5155 bnxt_rx_pkt+0x479b/0x7610 [bnxt_en] M\u00f3dulos vinculados: bnxt_re bnxt_en rdma_ucm rdma_cm iw_cm ib_cm ib_uverbs veth xt_nat xt_tcpudp xt_conntrack nft_chain_nat xt_MASQUERADE nf_] CPU: 3 UID: 0 PID: 5782 Comm: socat Contaminado: GW 6.14.0-rc4+ #27 Contaminado: [W]=WARN Nombre del hardware: Nombre del producto del sistema ASUS/PRIME Z690-P D4, BIOS 0603 11/01/2021 RIP: 0010:bnxt_rx_pkt+0x479b/0x7610 [bnxt_es] C\u00f3digo: 54 24 0c 4c 89 f1 4c 89 ff c1 ea 1f ff d3 0f 1f 00 49 89 c6 48 85 c0 0f 84 4c e5 ff ff 48 89 c7 e8 ca 3d a0 c8 e9 8f f4 ff ff \u0026lt;0f\u0026gt; 0b f RSP: 0018:ffff88881ba09928 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 00000000c7590303 RCX: 0000000000000000 RDX: 1ffff1104e7d1610 RSI: 0000000000000001 RDI: ffff8881c91300b8 RBP: ffff88881ba09b28 R08: ffff888273e8b0d0 R09: ffff888273e8b070 R10: ffff888273e8b010 R11: ffff888278b0f000 R12: ffff888273e8b080 R13: ffff8881c9130e00 R14: ffff8881505d3800 R15: ffff888273e8b000 FS: 00007f5a2e7be080(0000) GS:ffff88881ba00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fff2e708ff8 CR3: 000000013e3b0000 CR4: 00000000007506f0 PKRU: 55555554 Rastreo de llamadas:  ? __warn+0xcd/0x2f0 ? bnxt_rx_pkt+0x479b/0x7610 ? report_bug+0x326/0x3c0 ? __pfx_bnxt_rx_pkt+0x10/0x10 ? __bnxt_poll_work+0x4e8/0x1220 ? __pfx___bnxt_poll_work+0x10/0x10 ? El siguiente parche de ping.py agrega el caso xdp-mb-pass, por lo que ping.py podr\u00e1 reproducir este problema.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"drivers/net/ethernet/broadcom/bnxt/bnxt.c\",\"drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c\",\"drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"1dc4c557bfedfcdf7fc0c46795857773b7ad66e7\",\"lessThan\":\"e8e3e03d69f2420eaa578199a65d281c58867105\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1dc4c557bfedfcdf7fc0c46795857773b7ad66e7\",\"lessThan\":\"ee086c8e775f9690282e3d26471dbcfd5dad5a6a\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1dc4c557bfedfcdf7fc0c46795857773b7ad66e7\",\"lessThan\":\"5b57ed14a1b85e7ab0074d9668a0baa6c94826c7\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1dc4c557bfedfcdf7fc0c46795857773b7ad66e7\",\"lessThan\":\"44578bc6460b8fca530fc7bd5897c115d9bd27e2\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"1dc4c557bfedfcdf7fc0c46795857773b7ad66e7\",\"lessThan\":\"c03e7d05aa0e2f7e9a9ce5ad8a12471a53f941dc\",\"versionType\":\"git\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"drivers/net/ethernet/broadcom/bnxt/bnxt.c\",\"drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c\",\"drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.h\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"5.19\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"5.19\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.132\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.84\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.20\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.13.8\",\"lessThanOrEqual\":\"6.13.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.14\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":5.5,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"NVD-CWE-noinfo\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.19\",\"versionEndExcluding\":\"6.1.132\",\"matchCriteriaId\":\"36EE2A88-4836-42E6-9E9C-86989C38895E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.2\",\"versionEndExcluding\":\"6.6.84\",\"matchCriteriaId\":\"994E0F00-FAC4-40E4-9068-C7D4D8242EC8\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.7\",\"versionEndExcluding\":\"6.12.20\",\"matchCriteriaId\":\"60E9C5DF-D778-4572-848A-5D6CFFE022CA\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"6.13\",\"versionEndExcluding\":\"6.13.8\",\"matchCriteriaId\":\"0A20D4D7-B329-4C68-B662-76062EA7DCF0\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"186716B6-2B66-4BD0-852E-D48E71C0C85F\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*\",\"matchCriteriaId\":\"0D3E781C-403A-498F-9DA9-ECEE50F41E75\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*\",\"matchCriteriaId\":\"66619FB8-0AAF-4166-B2CF-67B24143261D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*\",\"matchCriteriaId\":\"D3D6550E-6679-4560-902D-AF52DCFE905B\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*\",\"matchCriteriaId\":\"45B90F6B-BEC7-4D4E-883A-9DBADE021750\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*\",\"matchCriteriaId\":\"1759FFB7-531C-41B1-9AE1-FD3D80E0D920\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/44578bc6460b8fca530fc7bd5897c115d9bd27e2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/5b57ed14a1b85e7ab0074d9668a0baa6c94826c7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/c03e7d05aa0e2f7e9a9ce5ad8a12471a53f941dc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/e8e3e03d69f2420eaa578199a65d281c58867105\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/ee086c8e775f9690282e3d26471dbcfd5dad5a6a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\"}]}}",
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-07-30T09:37:58+00:00",
      "cve": "CVE-2025-21960",
      "id": "CVE-2025-21960",
      "initial_release_date": "2025-04-01T00:00:00+00:00",
      "product_status:known_affected": "76",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: eth: bnxt: do not update checksum in bnxt_xdp_build_skb()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-21960.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-30T02:03:53Z",
      "cve": "CVE-2025-21960",
      "id": "CVE-2025-21960",
      "initial_release_date": "2025-04-02T08:57:16Z",
      "product_status:known_affected": "504",
      "product_status:known_not_affected": "325",
      "product_status:recommended": "384",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2025-21960",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2025-21960.json",
      "version": "46"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.