CVE-2025-38441 (GCVE-0-2025-38441)
Vulnerability from cvelistv5
Published
2025-07-25 15:27
Modified
2025-07-28 04:22
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto() syzbot found a potential access to uninit-value in nf_flow_pppoe_proto() Blamed commit forgot the Ethernet header. BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27 nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27 nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline] nf_hook_slow+0xe1/0x3d0 net/netfilter/core.c:623 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5742 [inline] __netif_receive_skb_core+0x4aff/0x70c0 net/core/dev.c:5837 __netif_receive_skb_one_core net/core/dev.c:5975 [inline] __netif_receive_skb+0xcc/0xac0 net/core/dev.c:6090 netif_receive_skb_internal net/core/dev.c:6176 [inline] netif_receive_skb+0x57/0x630 net/core/dev.c:6235 tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485 tun_get_user+0x4ee0/0x6b40 drivers/net/tun.c:1938 tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1984 new_sync_write fs/read_write.c:593 [inline] vfs_write+0xb4b/0x1580 fs/read_write.c:686 ksys_write fs/read_write.c:738 [inline] __do_sys_write fs/read_write.c:749 [inline]
References
Impacted products
Vendor Product Version
Linux Linux Version: d06977b9a4109f8738bb276125eb6a0b772bc433
Version: 8bf7c76a2a207ca2b4cfda0a279192adf27678d7
Version: a2471d271042ea18e8a6babc132a8716bb2f08b9
Version: 87b3593bed1868b2d9fe096c01bcdf0ea86cbebf
Version: 87b3593bed1868b2d9fe096c01bcdf0ea86cbebf
Version: 87b3593bed1868b2d9fe096c01bcdf0ea86cbebf
Version: cf366ee3bc1b7d1c76a882640ba3b3f8f1039163
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "include/net/netfilter/nf_flow_table.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "a3aea97d55964e70a1e6426aa4cafdc036e8a2dd",
              "status": "affected",
              "version": "d06977b9a4109f8738bb276125eb6a0b772bc433",
              "versionType": "git"
            },
            {
              "lessThan": "eed8960b289327235185b7c32649c3470a3e969b",
              "status": "affected",
              "version": "8bf7c76a2a207ca2b4cfda0a279192adf27678d7",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "a2471d271042ea18e8a6babc132a8716bb2f08b9",
              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "87b3593bed1868b2d9fe096c01bcdf0ea86cbebf",
              "versionType": "git"
            },
            {
              "lessThan": "cfbf0665969af2c69d10c377d4c3d306e717efb4",
              "status": "affected",
              "version": "87b3593bed1868b2d9fe096c01bcdf0ea86cbebf",
              "versionType": "git"
            },
            {
              "lessThan": "18cdb3d982da8976b28d57691eb256ec5688fad2",
              "status": "affected",
              "version": "87b3593bed1868b2d9fe096c01bcdf0ea86cbebf",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cf366ee3bc1b7d1c76a882640ba3b3f8f1039163",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "include/net/netfilter/nf_flow_table.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.9"
            },
            {
              "lessThan": "6.9",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.189",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.146",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.99",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.39",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.16",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.189",
                  "versionStartIncluding": "5.15.157",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.146",
                  "versionStartIncluding": "6.1.88",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.99",
                  "versionStartIncluding": "6.6.29",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.39",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.7",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "6.9",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.8.8",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()\n\nsyzbot found a potential access to uninit-value in nf_flow_pppoe_proto()\n\nBlamed commit forgot the Ethernet header.\n\nBUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27\n  nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27\n  nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]\n  nf_hook_slow+0xe1/0x3d0 net/netfilter/core.c:623\n  nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline]\n  nf_ingress net/core/dev.c:5742 [inline]\n  __netif_receive_skb_core+0x4aff/0x70c0 net/core/dev.c:5837\n  __netif_receive_skb_one_core net/core/dev.c:5975 [inline]\n  __netif_receive_skb+0xcc/0xac0 net/core/dev.c:6090\n  netif_receive_skb_internal net/core/dev.c:6176 [inline]\n  netif_receive_skb+0x57/0x630 net/core/dev.c:6235\n  tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485\n  tun_get_user+0x4ee0/0x6b40 drivers/net/tun.c:1938\n  tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1984\n  new_sync_write fs/read_write.c:593 [inline]\n  vfs_write+0xb4b/0x1580 fs/read_write.c:686\n  ksys_write fs/read_write.c:738 [inline]\n  __do_sys_write fs/read_write.c:749 [inline]"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:22:22.394Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/a3aea97d55964e70a1e6426aa4cafdc036e8a2dd"
        },
        {
          "url": "https://git.kernel.org/stable/c/eed8960b289327235185b7c32649c3470a3e969b"
        },
        {
          "url": "https://git.kernel.org/stable/c/9fbc49429a23b02595ba82536c5ea425fdabb221"
        },
        {
          "url": "https://git.kernel.org/stable/c/e0dd2e9729660f3f4fcb16e0aef87342911528ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/cfbf0665969af2c69d10c377d4c3d306e717efb4"
        },
        {
          "url": "https://git.kernel.org/stable/c/18cdb3d982da8976b28d57691eb256ec5688fad2"
        }
      ],
      "title": "netfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38441",
    "datePublished": "2025-07-25T15:27:20.276Z",
    "dateReserved": "2025-04-16T04:51:24.016Z",
    "dateUpdated": "2025-07-28T04:22:22.394Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38441\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-25T16:15:29.497\",\"lastModified\":\"2025-07-29T14:14:55.157\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnetfilter: flowtable: account for Ethernet header in nf_flow_pppoe_proto()\\n\\nsyzbot found a potential access to uninit-value in nf_flow_pppoe_proto()\\n\\nBlamed commit forgot the Ethernet header.\\n\\nBUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27\\n  nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27\\n  nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline]\\n  nf_hook_slow+0xe1/0x3d0 net/netfilter/core.c:623\\n  nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline]\\n  nf_ingress net/core/dev.c:5742 [inline]\\n  __netif_receive_skb_core+0x4aff/0x70c0 net/core/dev.c:5837\\n  __netif_receive_skb_one_core net/core/dev.c:5975 [inline]\\n  __netif_receive_skb+0xcc/0xac0 net/core/dev.c:6090\\n  netif_receive_skb_internal net/core/dev.c:6176 [inline]\\n  netif_receive_skb+0x57/0x630 net/core/dev.c:6235\\n  tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485\\n  tun_get_user+0x4ee0/0x6b40 drivers/net/tun.c:1938\\n  tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1984\\n  new_sync_write fs/read_write.c:593 [inline]\\n  vfs_write+0xb4b/0x1580 fs/read_write.c:686\\n  ksys_write fs/read_write.c:738 [inline]\\n  __do_sys_write fs/read_write.c:749 [inline]\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: netfilter: flowtable: cuenta para el encabezado Ethernet en nf_flow_pppoe_proto() syzbot encontr\u00f3 un acceso potencial a uninit-value en nf_flow_pppoe_proto() El commit culpado olvid\u00f3 el encabezado Ethernet. BUG: KMSAN: uninit-value in nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27 nf_flow_offload_inet_hook+0x7e4/0x940 net/netfilter/nf_flow_table_inet.c:27 nf_hook_entry_hookfn include/linux/netfilter.h:157 [inline] nf_hook_slow+0xe1/0x3d0 net/netfilter/core.c:623 nf_hook_ingress include/linux/netfilter_netdev.h:34 [inline] nf_ingress net/core/dev.c:5742 [inline] __netif_receive_skb_core+0x4aff/0x70c0 net/core/dev.c:5837 __netif_receive_skb_one_core net/core/dev.c:5975 [inline] __netif_receive_skb+0xcc/0xac0 net/core/dev.c:6090 netif_receive_skb_internal net/core/dev.c:6176 [inline] netif_receive_skb+0x57/0x630 net/core/dev.c:6235 tun_rx_batched+0x1df/0x980 drivers/net/tun.c:1485 tun_get_user+0x4ee0/0x6b40 drivers/net/tun.c:1938 tun_chr_write_iter+0x3e9/0x5c0 drivers/net/tun.c:1984 new_sync_write fs/read_write.c:593 [inline] vfs_write+0xb4b/0x1580 fs/read_write.c:686 ksys_write fs/read_write.c:738 [inline] __do_sys_write fs/read_write.c:749 [inline]\\n\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/18cdb3d982da8976b28d57691eb256ec5688fad2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/9fbc49429a23b02595ba82536c5ea425fdabb221\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a3aea97d55964e70a1e6426aa4cafdc036e8a2dd\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cfbf0665969af2c69d10c377d4c3d306e717efb4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e0dd2e9729660f3f4fcb16e0aef87342911528ef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eed8960b289327235185b7c32649c3470a3e969b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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