CVE-2026-46168 (GCVE-0-2026-46168)
Vulnerability from cvelistv5
Published
2026-05-28 09:36
Modified
2026-06-14 17:59
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mptcp: fix scheduling with atomic in timestamp sockopt Using lock_sock_fast() (atomic context) around sock_set_timestamp() and sock_set_timestamping() is unsafe, as both helpers can sleep. Replace lock_sock_fast() with sleepable lock_sock()/release_sock() to avoid scheduling while atomic panic.
Impacted products
Vendor Product Version
Linux Linux Version: 9061f24bf82ec2e92dd1e7c10b98b680db023d31
Version: 9061f24bf82ec2e92dd1e7c10b98b680db023d31
Version: 9061f24bf82ec2e92dd1e7c10b98b680db023d31
Version: 9061f24bf82ec2e92dd1e7c10b98b680db023d31
Version: 9061f24bf82ec2e92dd1e7c10b98b680db023d31
Version: 9061f24bf82ec2e92dd1e7c10b98b680db023d31
Version: 9061f24bf82ec2e92dd1e7c10b98b680db023d31
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{
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          "vendor": "Linux",
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              "version": "0",
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              "version": "6.1.175",
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              "version": "6.6.140",
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              "version": "7.0.7",
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              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
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          "nodes": [
            {
              "cpeMatch": [
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix scheduling with atomic in timestamp sockopt\n\nUsing lock_sock_fast() (atomic context) around sock_set_timestamp()\nand sock_set_timestamping() is unsafe, as both helpers can sleep.\n\nReplace lock_sock_fast() with sleepable lock_sock()/release_sock()\nto avoid scheduling while atomic panic."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-14T17:59:42.888Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/0949d8bbbedbafe0136a1723c41eb823c2f1e09d"
        },
        {
          "url": "https://git.kernel.org/stable/c/e792cfb6aeaf65612cdf8e3ac431d65e66283654"
        },
        {
          "url": "https://git.kernel.org/stable/c/ebeb70e29e37cfce899309cc2665a3bfe960ed94"
        },
        {
          "url": "https://git.kernel.org/stable/c/b157dab93a7af44a84e78cf0cb311dde475cff5b"
        },
        {
          "url": "https://git.kernel.org/stable/c/8a005fe451c73fd2b3d1faa5643c11e6bd07acfc"
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        {
          "url": "https://git.kernel.org/stable/c/7eb513b42721bee4b96da69f6188d5a7783f210d"
        },
        {
          "url": "https://git.kernel.org/stable/c/b5c52908d52c6c8eb8933264aa6087a0600fd892"
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      ],
      "title": "mptcp: fix scheduling with atomic in timestamp sockopt",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46168",
    "datePublished": "2026-05-28T09:36:23.394Z",
    "dateReserved": "2026-05-13T15:03:33.102Z",
    "dateUpdated": "2026-06-14T17:59:42.888Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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