CVE-2022-49725 (GCVE-0-2022-49725)
Vulnerability from cvelistv5
Published
2025-02-26 02:24
Modified
2026-08-05 08:56
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: i40e: Fix call trace in setup_tx_descriptors After PF reset and ethtool -t there was call trace in dmesg sometimes leading to panic. When there was some time, around 5 seconds, between reset and test there were no errors. Problem was that pf reset calls i40e_vsi_close in prep_for_reset and ethtool -t calls i40e_vsi_close in diag_test. If there was not enough time between those commands the second i40e_vsi_close starts before previous i40e_vsi_close was done which leads to crash. Add check to diag_test if pf is in reset and don't start offline tests if it is true. Add netif_info("testing failed") into unhappy path of i40e_diag_test()
References
Impacted products
Vendor Product Version
Linux Linux Version: e17bc411aea8fbebc51857037f104ab09f765120
Version: e17bc411aea8fbebc51857037f104ab09f765120
Version: e17bc411aea8fbebc51857037f104ab09f765120
Version: e17bc411aea8fbebc51857037f104ab09f765120
Version: e17bc411aea8fbebc51857037f104ab09f765120
Version: e17bc411aea8fbebc51857037f104ab09f765120
Version: e17bc411aea8fbebc51857037f104ab09f765120
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/i40e/i40e_ethtool.c"
          ],
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          "vendor": "Linux",
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        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/net/ethernet/intel/i40e/i40e_ethtool.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "0",
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              "status": "unaffected",
              "version": "5.4.200",
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            },
            {
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              "status": "unaffected",
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            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.49",
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            },
            {
              "lessThanOrEqual": "5.18.*",
              "status": "unaffected",
              "version": "5.18.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "5.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.14.285",
                  "versionStartIncluding": "4.2",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "4.19.249",
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              ],
              "negate": false,
              "operator": "OR"
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          ]
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ni40e: Fix call trace in setup_tx_descriptors\n\nAfter PF reset and ethtool -t there was call trace in dmesg\nsometimes leading to panic. When there was some time, around 5\nseconds, between reset and test there were no errors.\n\nProblem was that pf reset calls i40e_vsi_close in prep_for_reset\nand ethtool -t calls i40e_vsi_close in diag_test. If there was not\nenough time between those commands the second i40e_vsi_close starts\nbefore previous i40e_vsi_close was done which leads to crash.\n\nAdd check to diag_test if pf is in reset and don\u0027t start offline\ntests if it is true.\nAdd netif_info(\"testing failed\") into unhappy path of i40e_diag_test()"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "scenarios": [
            {
              "lang": "en",
              "value": "AV:L - The bug is reached only through the local SIOCETHTOOL ETHTOOL_TEST ioctl path (__dev_ethtool \u2192 ethtool_self_test \u2192 i40e_diag_test \u2192 i40e_close/i40e_do_reset), not via remote packet processing or an adjacent-link protocol.\nAC:L - An attacker who can drive PF reset and immediately run ethtool -t controls both sides of the race; the multi-second RESET_RECOVERY_PENDING window (prep_for_reset without rtnl on the async service-task path, then rebuild) is large enough to hit reliably by issuing both operations back-to-back.\nPR:L - ETHTOOL_TEST requires ns_capable(net-\u003euser_ns, CAP_NET_ADMIN), which is available in a user-namespace\u2013owned netns with a delegated i40e PF, matching prior Intel ethernet/ethtool scoring (e.g. ice AF_XDP CAP_NET_ADMIN paths).\nUI:N - The attacker issues the ethtool self-test (and the concurrent reset trigger) from their own process; no separate victim action such as mounting media or opening a file is required.\nS:U - The race corrupts host-kernel i40e ring/VSI state within the same OS security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:H - Overlapping i40e_vsi_close calls free TX/RX resources outside the __I40E_VSI_DOWN bit (desc check then kfree(tx_bi)/dma_free_coherent with no serialization), yielding a heap double-free/UAF that can be leveraged for high-impact kernel memory disclosure.\nI:H - The same unsynchronized double-free/UAF of tx_bi and DMA descriptor memory is exploitable heap corruption that, per UAF guidance, enables write and control-flow hijack primitives beyond a pure crash.\nA:H - The race produces kernel call traces and panics (including WARN_ON(tx_ring-\u003etx_bi) in i40e_setup_tx_descriptors and faults from the double-free/UAF), which is a full availability impact."
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-05T08:56:07.991Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/5ba9956ca57e361fb13ea369bb753eb33177acc7"
        },
        {
          "url": "https://git.kernel.org/stable/c/15950157e2c24865b696db1c9ccc72743ae0e967"
        },
        {
          "url": "https://git.kernel.org/stable/c/ff6e03fe84bc917bb0c907d02de668c2fe101712"
        },
        {
          "url": "https://git.kernel.org/stable/c/814092927a215f5ca6c08249ec72a205e0b473cd"
        },
        {
          "url": "https://git.kernel.org/stable/c/0a4e5a3dc5e41212870e6043895ae02455c93f63"
        },
        {
          "url": "https://git.kernel.org/stable/c/322271351b0e41565171e4cce70ea41854fac115"
        },
        {
          "url": "https://git.kernel.org/stable/c/fd5855e6b1358e816710afee68a1d2bc685176ca"
        }
      ],
      "title": "i40e: Fix call trace in setup_tx_descriptors",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49725",
    "datePublished": "2025-02-26T02:24:37.349Z",
    "dateReserved": "2025-02-26T02:21:30.447Z",
    "dateUpdated": "2026-08-05T08:56:07.991Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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