{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2024-53113",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2024-53113"
  ],
  "published": "2024-12-02T13:53:05Z",
  "summary": "mm: fix NULL pointer dereference in alloc_pages_bulk_noprof",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm: fix NULL pointer dereference in alloc_pages_bulk_noprof\n\nWe triggered a NULL pointer dereference for ac.preferred_zoneref->zone in\nalloc_pages_bulk_noprof() when the task is migrated between cpusets.\n\nWhen cpuset is enabled, in prepare_alloc_pages(), ac->nodemask may be\n&current->mems_allowed.  when first_zones_zonelist() is called to find\npreferred_zoneref, the ac->nodemask may be modified concurrently if the\ntask is migrated between different cpusets.  Assuming we have 2 NUMA Node,\nwhen traversing Node1 in ac->zonelist, the nodemask is 2, and when\ntraversing Node2 in ac->zonelist, the nodemask is 1.  As a result, the\nac->preferred_zoneref points to NULL zone.\n\nIn alloc_pages_bulk_noprof(), for_each_zone_zonelist_nodemask() finds a\nallowable zone and calls zonelist_node_idx(ac.preferred_zoneref), leading\nto NULL pointer dereference.\n\n__alloc_pages_noprof() fixes this issue by checking NULL pointer in commit\nea57485af8f4 (\"mm, page_alloc: fix check for NULL preferred_zone\") and\ncommit df76cee6bbeb (\"mm, page_alloc: remove redundant checks from alloc\nfastpath\").\n\nTo fix it, check NULL pointer for preferred_zoneref->zone.",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-53113"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/903d896448c2e50e8652aaba529a30d4d1eaa0e5"
    },
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      "url": "https://git.kernel.org/stable/c/6addb2d9501ec866d7b3a3b4e665307c437e9be2"
    },
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      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d0f16cec79774c3132df006cf771eddd89d08f58"
    },
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      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/31502374627ba9ec3e710dbd0bb00457cc6d2c19"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8ce41b0f9d77cca074df25afd39b86e2ee3aa68e"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-12T04:54:46Z"
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}