CVE-2025-38146 (GCVE-0-2025-38146)
Vulnerability from cvelistv5
Published
2025-07-03 08:35
Modified
2025-07-28 04:13
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: Fix the dead loop of MPLS parse The unexpected MPLS packet may not end with the bottom label stack. When there are many stacks, The label count value has wrapped around. A dead loop occurs, soft lockup/CPU stuck finally. stack backtrace: UBSAN: array-index-out-of-bounds in /build/linux-0Pa0xK/linux-5.15.0/net/openvswitch/flow.c:662:26 index -1 is out of range for type '__be32 [3]' CPU: 34 PID: 0 Comm: swapper/34 Kdump: loaded Tainted: G OE 5.15.0-121-generic #131-Ubuntu Hardware name: Dell Inc. PowerEdge C6420/0JP9TF, BIOS 2.12.2 07/14/2021 Call Trace: <IRQ> show_stack+0x52/0x5c dump_stack_lvl+0x4a/0x63 dump_stack+0x10/0x16 ubsan_epilogue+0x9/0x36 __ubsan_handle_out_of_bounds.cold+0x44/0x49 key_extract_l3l4+0x82a/0x840 [openvswitch] ? kfree_skbmem+0x52/0xa0 key_extract+0x9c/0x2b0 [openvswitch] ovs_flow_key_extract+0x124/0x350 [openvswitch] ovs_vport_receive+0x61/0xd0 [openvswitch] ? kernel_init_free_pages.part.0+0x4a/0x70 ? get_page_from_freelist+0x353/0x540 netdev_port_receive+0xc4/0x180 [openvswitch] ? netdev_port_receive+0x180/0x180 [openvswitch] netdev_frame_hook+0x1f/0x40 [openvswitch] __netif_receive_skb_core.constprop.0+0x23a/0xf00 __netif_receive_skb_list_core+0xfa/0x240 netif_receive_skb_list_internal+0x18e/0x2a0 napi_complete_done+0x7a/0x1c0 bnxt_poll+0x155/0x1c0 [bnxt_en] __napi_poll+0x30/0x180 net_rx_action+0x126/0x280 ? bnxt_msix+0x67/0x80 [bnxt_en] handle_softirqs+0xda/0x2d0 irq_exit_rcu+0x96/0xc0 common_interrupt+0x8e/0xa0 </IRQ>
References
Impacted products
Vendor Product Version
Linux Linux Version: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3
Version: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3
Version: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3
Version: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3
Version: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3
Version: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3
Version: fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/openvswitch/flow.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "lessThan": "4b9a086eedc1fddae632310386098c12155e3d0a",
              "status": "affected",
              "version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3",
              "versionType": "git"
            },
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              "lessThan": "ad17eb86d042d72a59fd184ad1adf34f5eb36843",
              "status": "affected",
              "version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3",
              "versionType": "git"
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              "status": "affected",
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              "versionType": "git"
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              "versionType": "git"
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              "lessThan": "3c1906a3d50cb94fd0a10e97a1c0a40c0f033cb7",
              "status": "affected",
              "version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3",
              "versionType": "git"
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            {
              "lessThan": "0bdc924bfb319fb10d1113cbf091fc26fb7b1f99",
              "status": "affected",
              "version": "fbdcdd78da7c95f1b970d371e1b23cbd3aa990f3",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/openvswitch/flow.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.5"
            },
            {
              "lessThan": "5.5",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.239",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.186",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.142",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.94",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.34",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.15.*",
              "status": "unaffected",
              "version": "6.15.3",
              "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": "5.10.239",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.186",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.142",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.94",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.34",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15.3",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.16",
                  "versionStartIncluding": "5.5",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: Fix the dead loop of MPLS parse\n\nThe unexpected MPLS packet may not end with the bottom label stack.\nWhen there are many stacks, The label count value has wrapped around.\nA dead loop occurs, soft lockup/CPU stuck finally.\n\nstack backtrace:\nUBSAN: array-index-out-of-bounds in /build/linux-0Pa0xK/linux-5.15.0/net/openvswitch/flow.c:662:26\nindex -1 is out of range for type \u0027__be32 [3]\u0027\nCPU: 34 PID: 0 Comm: swapper/34 Kdump: loaded Tainted: G           OE   5.15.0-121-generic #131-Ubuntu\nHardware name: Dell Inc. PowerEdge C6420/0JP9TF, BIOS 2.12.2 07/14/2021\nCall Trace:\n \u003cIRQ\u003e\n show_stack+0x52/0x5c\n dump_stack_lvl+0x4a/0x63\n dump_stack+0x10/0x16\n ubsan_epilogue+0x9/0x36\n __ubsan_handle_out_of_bounds.cold+0x44/0x49\n key_extract_l3l4+0x82a/0x840 [openvswitch]\n ? kfree_skbmem+0x52/0xa0\n key_extract+0x9c/0x2b0 [openvswitch]\n ovs_flow_key_extract+0x124/0x350 [openvswitch]\n ovs_vport_receive+0x61/0xd0 [openvswitch]\n ? kernel_init_free_pages.part.0+0x4a/0x70\n ? get_page_from_freelist+0x353/0x540\n netdev_port_receive+0xc4/0x180 [openvswitch]\n ? netdev_port_receive+0x180/0x180 [openvswitch]\n netdev_frame_hook+0x1f/0x40 [openvswitch]\n __netif_receive_skb_core.constprop.0+0x23a/0xf00\n __netif_receive_skb_list_core+0xfa/0x240\n netif_receive_skb_list_internal+0x18e/0x2a0\n napi_complete_done+0x7a/0x1c0\n bnxt_poll+0x155/0x1c0 [bnxt_en]\n __napi_poll+0x30/0x180\n net_rx_action+0x126/0x280\n ? bnxt_msix+0x67/0x80 [bnxt_en]\n handle_softirqs+0xda/0x2d0\n irq_exit_rcu+0x96/0xc0\n common_interrupt+0x8e/0xa0\n \u003c/IRQ\u003e"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-07-28T04:13:28.266Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4b9a086eedc1fddae632310386098c12155e3d0a"
        },
        {
          "url": "https://git.kernel.org/stable/c/ad17eb86d042d72a59fd184ad1adf34f5eb36843"
        },
        {
          "url": "https://git.kernel.org/stable/c/f26fe7c3002516dd3c288f1012786df31f4d89e0"
        },
        {
          "url": "https://git.kernel.org/stable/c/8ebcd311b4866ab911d1445ead08690e67f0c488"
        },
        {
          "url": "https://git.kernel.org/stable/c/69541e58323ec3e3904e1fa87a6213961b1f52f4"
        },
        {
          "url": "https://git.kernel.org/stable/c/3c1906a3d50cb94fd0a10e97a1c0a40c0f033cb7"
        },
        {
          "url": "https://git.kernel.org/stable/c/0bdc924bfb319fb10d1113cbf091fc26fb7b1f99"
        }
      ],
      "title": "net: openvswitch: Fix the dead loop of MPLS parse",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-38146",
    "datePublished": "2025-07-03T08:35:52.230Z",
    "dateReserved": "2025-04-16T04:51:23.988Z",
    "dateUpdated": "2025-07-28T04:13:28.266Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-38146\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-03T09:15:29.410\",\"lastModified\":\"2025-07-03T15:13:53.147\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nnet: openvswitch: Fix the dead loop of MPLS parse\\n\\nThe unexpected MPLS packet may not end with the bottom label stack.\\nWhen there are many stacks, The label count value has wrapped around.\\nA dead loop occurs, soft lockup/CPU stuck finally.\\n\\nstack backtrace:\\nUBSAN: array-index-out-of-bounds in /build/linux-0Pa0xK/linux-5.15.0/net/openvswitch/flow.c:662:26\\nindex -1 is out of range for type \u0027__be32 [3]\u0027\\nCPU: 34 PID: 0 Comm: swapper/34 Kdump: loaded Tainted: G           OE   5.15.0-121-generic #131-Ubuntu\\nHardware name: Dell Inc. PowerEdge C6420/0JP9TF, BIOS 2.12.2 07/14/2021\\nCall Trace:\\n \u003cIRQ\u003e\\n show_stack+0x52/0x5c\\n dump_stack_lvl+0x4a/0x63\\n dump_stack+0x10/0x16\\n ubsan_epilogue+0x9/0x36\\n __ubsan_handle_out_of_bounds.cold+0x44/0x49\\n key_extract_l3l4+0x82a/0x840 [openvswitch]\\n ? kfree_skbmem+0x52/0xa0\\n key_extract+0x9c/0x2b0 [openvswitch]\\n ovs_flow_key_extract+0x124/0x350 [openvswitch]\\n ovs_vport_receive+0x61/0xd0 [openvswitch]\\n ? kernel_init_free_pages.part.0+0x4a/0x70\\n ? get_page_from_freelist+0x353/0x540\\n netdev_port_receive+0xc4/0x180 [openvswitch]\\n ? netdev_port_receive+0x180/0x180 [openvswitch]\\n netdev_frame_hook+0x1f/0x40 [openvswitch]\\n __netif_receive_skb_core.constprop.0+0x23a/0xf00\\n __netif_receive_skb_list_core+0xfa/0x240\\n netif_receive_skb_list_internal+0x18e/0x2a0\\n napi_complete_done+0x7a/0x1c0\\n bnxt_poll+0x155/0x1c0 [bnxt_en]\\n __napi_poll+0x30/0x180\\n net_rx_action+0x126/0x280\\n ? bnxt_msix+0x67/0x80 [bnxt_en]\\n handle_softirqs+0xda/0x2d0\\n irq_exit_rcu+0x96/0xc0\\n common_interrupt+0x8e/0xa0\\n \u003c/IRQ\u003e\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: net: openvswitch: Se corrige el bucle muerto del an\u00e1lisis MPLS. El paquete MPLS inesperado podr\u00eda no terminar en la \u00faltima pila de etiquetas. Cuando hay muchas pilas, el valor del recuento de etiquetas se reinicia. Se produce un bucle muerto y, finalmente, se bloquea la CPU. seguimiento de pila: UBSAN: \u00edndice de matriz fuera de los l\u00edmites en /build/linux-0Pa0xK/linux-5.15.0/net/openvswitch/flow.c:662:26 el \u00edndice -1 est\u00e1 fuera de rango para el tipo \u0027__be32 [3]\u0027 CPU: 34 PID: 0 Comm: swapper/34 Kdump: cargado Tainted: G OE 5.15.0-121-generic #131-Ubuntu Nombre del hardware: Dell Inc. PowerEdge C6420/0JP9TF, BIOS 2.12.2 14/07/2021 Seguimiento de llamadas:  show_stack+0x52/0x5c dump_stack_lvl+0x4a/0x63 dump_stack+0x10/0x16 ubsan_epilogue+0x9/0x36 __ubsan_handle_out_of_bounds.cold+0x44/0x49 key_extract_l3l4+0x82a/0x840 [openvswitch] ? kfree_skbmem+0x52/0xa0 key_extract+0x9c/0x2b0 [openvswitch] ovs_flow_key_extract+0x124/0x350 [openvswitch] ovs_vport_receive+0x61/0xd0 [openvswitch] ? kernel_init_free_pages.part.0+0x4a/0x70 ? get_page_from_freelist+0x353/0x540 netdev_port_receive+0xc4/0x180 [openvswitch] ? netdev_port_receive+0x180/0x180 [openvswitch] netdev_frame_hook+0x1f/0x40 [openvswitch] __netif_receive_skb_core.constprop.0+0x23a/0xf00 __netif_receive_skb_list_core+0xfa/0x240 netif_receive_skb_list_internal+0x18e/0x2a0 napi_complete_done+0x7a/0x1c0 bnxt_poll+0x155/0x1c0 [bnxt_en] __napi_poll+0x30/0x180 net_rx_action+0x126/0x280 ? bnxt_msix+0x67/0x80 [bnxt_en] handle_softirqs+0xda/0x2d0 irq_exit_rcu+0x96/0xc0 common_interrupt+0x8e/0xa0  \"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/0bdc924bfb319fb10d1113cbf091fc26fb7b1f99\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3c1906a3d50cb94fd0a10e97a1c0a40c0f033cb7\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4b9a086eedc1fddae632310386098c12155e3d0a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/69541e58323ec3e3904e1fa87a6213961b1f52f4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8ebcd311b4866ab911d1445ead08690e67f0c488\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ad17eb86d042d72a59fd184ad1adf34f5eb36843\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f26fe7c3002516dd3c288f1012786df31f4d89e0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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