cve-2024-27007
Vulnerability from cvelistv5
Published
2024-05-01 05:29
Modified
2024-08-02 00:21
Severity
Summary
userfaultfd: change src_folio after ensuring it's unpinned in UFFDIO_MOVE
Impacted products
VendorProduct
LinuxLinux
LinuxLinux
Show details on NVD website


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                "role": "CISA Coordinator",
                "timestamp": "2024-06-17T17:40:30.411881Z",
                "version": "2.0.3"
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nuserfaultfd: change src_folio after ensuring it\u0027s unpinned in UFFDIO_MOVE\n\nCommit d7a08838ab74 (\"mm: userfaultfd: fix unexpected change to src_folio\nwhen UFFDIO_MOVE fails\") moved the src_folio-\u003e{mapping, index} changing to\nafter clearing the page-table and ensuring that it\u0027s not pinned.  This\navoids failure of swapout+migration and possibly memory corruption.\n\nHowever, the commit missed fixing it in the huge-page case."
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      "title": "userfaultfd: change src_folio after ensuring it\u0027s unpinned in UFFDIO_MOVE",
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    "dateReserved": "2024-02-19T14:20:24.208Z",
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