cve-2024-56700
Vulnerability from cvelistv5
Published
2024-12-28 09:46
Modified
2025-01-20 06:26
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: media: wl128x: Fix atomicity violation in fmc_send_cmd() Atomicity violation occurs when the fmc_send_cmd() function is executed simultaneously with the modification of the fmdev->resp_skb value. Consider a scenario where, after passing the validity check within the function, a non-null fmdev->resp_skb variable is assigned a null value. This results in an invalid fmdev->resp_skb variable passing the validity check. As seen in the later part of the function, skb = fmdev->resp_skb; when the invalid fmdev->resp_skb passes the check, a null pointer dereference error may occur at line 478, evt_hdr = (void *)skb->data; To address this issue, it is recommended to include the validity check of fmdev->resp_skb within the locked section of the function. This modification ensures that the value of fmdev->resp_skb does not change during the validation process, thereby maintaining its validity. This possible bug is found by an experimental static analysis tool developed by our team. This tool analyzes the locking APIs to extract function pairs that can be concurrently executed, and then analyzes the instructions in the paired functions to identify possible concurrency bugs including data races and atomicity violations.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2e63c908de357048180516b84740ed62dac0b269
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/372dc9509122e5d45d4c12978e31c3c7d00aaca4
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/378ce4e08ca2b1ac7bbf1d57b68643ca4226c5f8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3c818ad07e964bca3d27adac1e1f50e1e3c9180e
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80a3b2ee01eecf22dfa06968b3cde92c691dea10
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ca59f9956d4519ab18ab2270be47c6b8c6ced091
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d16109c9fdc1b8cea4fe63b42e06e926c3f68990
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d7408a052aa1b4f6fb6f1c7a8877b84017a07ac9
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ed228b74d8a500380150965d5becabf9a1e33141
Impacted products
Vendor Product Version
Linux Linux Version: e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6
Version: e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6
Version: e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6
Version: e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6
Version: e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6
Version: e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6
Version: e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6
Version: e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6
Version: e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6
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   Linux Linux Version: 2.6.39
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/radio/wl128x/fmdrv_common.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d16109c9fdc1b8cea4fe63b42e06e926c3f68990",
              "status": "affected",
              "version": "e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6",
              "versionType": "git"
            },
            {
              "lessThan": "3c818ad07e964bca3d27adac1e1f50e1e3c9180e",
              "status": "affected",
              "version": "e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6",
              "versionType": "git"
            },
            {
              "lessThan": "d7408a052aa1b4f6fb6f1c7a8877b84017a07ac9",
              "status": "affected",
              "version": "e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6",
              "versionType": "git"
            },
            {
              "lessThan": "ed228b74d8a500380150965d5becabf9a1e33141",
              "status": "affected",
              "version": "e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6",
              "versionType": "git"
            },
            {
              "lessThan": "372dc9509122e5d45d4c12978e31c3c7d00aaca4",
              "status": "affected",
              "version": "e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6",
              "versionType": "git"
            },
            {
              "lessThan": "378ce4e08ca2b1ac7bbf1d57b68643ca4226c5f8",
              "status": "affected",
              "version": "e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6",
              "versionType": "git"
            },
            {
              "lessThan": "2e63c908de357048180516b84740ed62dac0b269",
              "status": "affected",
              "version": "e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6",
              "versionType": "git"
            },
            {
              "lessThan": "80a3b2ee01eecf22dfa06968b3cde92c691dea10",
              "status": "affected",
              "version": "e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6",
              "versionType": "git"
            },
            {
              "lessThan": "ca59f9956d4519ab18ab2270be47c6b8c6ced091",
              "status": "affected",
              "version": "e8454ff7b9a4d56f02c095bff12d3c92ef4c7fa6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/media/radio/wl128x/fmdrv_common.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.39"
            },
            {
              "lessThan": "2.6.39",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "4.19.*",
              "status": "unaffected",
              "version": "4.19.325",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.287",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.231",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.174",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.120",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.64",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.13",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: wl128x: Fix atomicity violation in fmc_send_cmd()\n\nAtomicity violation occurs when the fmc_send_cmd() function is executed\nsimultaneously with the modification of the fmdev-\u003eresp_skb value.\nConsider a scenario where, after passing the validity check within the\nfunction, a non-null fmdev-\u003eresp_skb variable is assigned a null value.\nThis results in an invalid fmdev-\u003eresp_skb variable passing the validity\ncheck. As seen in the later part of the function, skb = fmdev-\u003eresp_skb;\nwhen the invalid fmdev-\u003eresp_skb passes the check, a null pointer\ndereference error may occur at line 478, evt_hdr = (void *)skb-\u003edata;\n\nTo address this issue, it is recommended to include the validity check of\nfmdev-\u003eresp_skb within the locked section of the function. This\nmodification ensures that the value of fmdev-\u003eresp_skb does not change\nduring the validation process, thereby maintaining its validity.\n\nThis possible bug is found by an experimental static analysis tool\ndeveloped by our team. This tool analyzes the locking APIs\nto extract function pairs that can be concurrently executed, and then\nanalyzes the instructions in the paired functions to identify possible\nconcurrency bugs including data races and atomicity violations."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-01-20T06:26:28.035Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d16109c9fdc1b8cea4fe63b42e06e926c3f68990"
        },
        {
          "url": "https://git.kernel.org/stable/c/3c818ad07e964bca3d27adac1e1f50e1e3c9180e"
        },
        {
          "url": "https://git.kernel.org/stable/c/d7408a052aa1b4f6fb6f1c7a8877b84017a07ac9"
        },
        {
          "url": "https://git.kernel.org/stable/c/ed228b74d8a500380150965d5becabf9a1e33141"
        },
        {
          "url": "https://git.kernel.org/stable/c/372dc9509122e5d45d4c12978e31c3c7d00aaca4"
        },
        {
          "url": "https://git.kernel.org/stable/c/378ce4e08ca2b1ac7bbf1d57b68643ca4226c5f8"
        },
        {
          "url": "https://git.kernel.org/stable/c/2e63c908de357048180516b84740ed62dac0b269"
        },
        {
          "url": "https://git.kernel.org/stable/c/80a3b2ee01eecf22dfa06968b3cde92c691dea10"
        },
        {
          "url": "https://git.kernel.org/stable/c/ca59f9956d4519ab18ab2270be47c6b8c6ced091"
        }
      ],
      "title": "media: wl128x: Fix atomicity violation in fmc_send_cmd()",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-56700",
    "datePublished": "2024-12-28T09:46:22.770Z",
    "dateReserved": "2024-12-27T15:00:39.851Z",
    "dateUpdated": "2025-01-20T06:26:28.035Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-56700\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-12-28T10:15:17.290\",\"lastModified\":\"2024-12-28T10:15:17.290\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmedia: wl128x: Fix atomicity violation in fmc_send_cmd()\\n\\nAtomicity violation occurs when the fmc_send_cmd() function is executed\\nsimultaneously with the modification of the fmdev-\u003eresp_skb value.\\nConsider a scenario where, after passing the validity check within the\\nfunction, a non-null fmdev-\u003eresp_skb variable is assigned a null value.\\nThis results in an invalid fmdev-\u003eresp_skb variable passing the validity\\ncheck. As seen in the later part of the function, skb = fmdev-\u003eresp_skb;\\nwhen the invalid fmdev-\u003eresp_skb passes the check, a null pointer\\ndereference error may occur at line 478, evt_hdr = (void *)skb-\u003edata;\\n\\nTo address this issue, it is recommended to include the validity check of\\nfmdev-\u003eresp_skb within the locked section of the function. This\\nmodification ensures that the value of fmdev-\u003eresp_skb does not change\\nduring the validation process, thereby maintaining its validity.\\n\\nThis possible bug is found by an experimental static analysis tool\\ndeveloped by our team. This tool analyzes the locking APIs\\nto extract function pairs that can be concurrently executed, and then\\nanalyzes the instructions in the paired functions to identify possible\\nconcurrency bugs including data races and atomicity violations.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2e63c908de357048180516b84740ed62dac0b269\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/372dc9509122e5d45d4c12978e31c3c7d00aaca4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/378ce4e08ca2b1ac7bbf1d57b68643ca4226c5f8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3c818ad07e964bca3d27adac1e1f50e1e3c9180e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/80a3b2ee01eecf22dfa06968b3cde92c691dea10\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ca59f9956d4519ab18ab2270be47c6b8c6ced091\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d16109c9fdc1b8cea4fe63b42e06e926c3f68990\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d7408a052aa1b4f6fb6f1c7a8877b84017a07ac9\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ed228b74d8a500380150965d5becabf9a1e33141\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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