CVE-2021-47152
Vulnerability from cvelistv5
Published
2024-03-25 09:07
Modified
2024-11-04 12:00
Severity ?
Summary
mptcp: fix data stream corruption
Impacted products
LinuxLinux
LinuxLinux
Show details on NVD website


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                "id": "CVE-2021-47152",
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          "programFiles": [
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          "vendor": "Linux",
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix data stream corruption\n\nMaxim reported several issues when forcing a TCP transparent proxy\nto use the MPTCP protocol for the inbound connections. He also\nprovided a clean reproducer.\n\nThe problem boils down to \u0027mptcp_frag_can_collapse_to()\u0027 assuming\nthat only MPTCP will use the given page_frag.\n\nIf others - e.g. the plain TCP protocol - allocate page fragments,\nwe can end-up re-using already allocated memory for mptcp_data_frag.\n\nFix the issue ensuring that the to-be-expanded data fragment is\nlocated at the current page frag end.\n\nv1 -\u003e v2:\n - added missing fixes tag (Mat)"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2021-47152",
    "datePublished": "2024-03-25T09:07:47.235Z",
    "dateReserved": "2024-03-04T18:12:48.846Z",
    "dateUpdated": "2024-11-04T12:00:29.864Z",
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