mm: use memalloc_nofs_save() in page_cache_ra_order()

{
  "id": "b432536e83955d225cd0ee8cf288920cf7faa4933c604f1a5f2524f58076ed05",
  "url": "https://osv.dev/vulnerability/CVE-2024-36882",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mm: use memalloc_nofs_save() in page_cache_ra_order()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: mm: use memalloc_nofs_save() in page_cache_ra_order() See commit f2c817bed58d (\"mm: use memalloc_nofs_save in readahead path\"), ensure that page_cache_ra_order() do not attempt to reclaim file-backed pages too, or it leads to a deadlock, found issue when test ext4 large folio. INFO: task DataXceiver for:7494 blocked for more than 120 seconds. \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message. task:DataXceiver for state:D stack:0 pid:7494 ppid:1 flags:0x00000200 Call trace: __switch_to+0x14c/0x240 __schedule+0x82c/0xdd0 schedule+0x58/0xf0 io_schedule+0x24/0xa0 __folio_lock+0x130/0x300 migrate_pages_batch+0x378/0x918 migrate_pages+0x350/0x700 compact_zone+0x63c/0xb38 compact_zone_order+0xc0/0x118 try_to_compact_pages+0xb0/0x280 __alloc_pages_direct_compact+0x98/0x248 __alloc_pages+0x510/0x1110 alloc_pages+0x9c/0x130 folio_alloc+0x20/0x78 filemap_alloc_folio+0x8c/0x1b0 page_cache_ra_order+0x174/0x308 ondemand_readahead+0x1c8/0x2b8 page_cache_async_ra+0x68/0xb8 filemap_readahead.isra.0+0x64/0xa8 filemap_get_pages+0x3fc/0x5b0 filemap_splice_read+0xf4/0x280 ext4_file_splice_read+0x2c/0x48 [ext4] vfs_splice_read.part.0+0xa8/0x118 splice_direct_to_actor+0xbc/0x288 do_splice_direct+0x9c/0x108 do_sendfile+0x328/0x468 __arm64_sys_sendfile64+0x8c/0x148 invoke_syscall+0x4c/0x118 el0_svc_common.constprop.0+0xc8/0xf0 do_el0_svc+0x24/0x38 el0_svc+0x4c/0x1f8 el0t_64_sync_handler+0xc0/0xc8 el0t_64_sync+0",
    "evidence": "osv:CVE-2024-36882",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.91",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.31",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.8.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2024-36882",
      "aliases": [
        "CVE-2024-36882"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "793917d997df2e432f3e9ac126e4482d68256d01"
                },
                {
                  "fixed": "7629ef6dda1564098aadeef38e5fbd11ee8627c4"
                },
                {
                  "fixed": "468971c3f4b8187f25334503b68050a0e1370147"
                },
                {
                  "fixed": "cf6a1d16c6df3c30b03f0c6a92a2ba7f86dffb45"
                },
                {
                  "fixed": "30153e4466647a17eebfced13eede5cbe4290e69"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-36882.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.18.0"
                },
                {
                  "fixed": "6.1.91"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.31"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.8.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-36882.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.976793961Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/30153e4466647a17eebfced13eede5cbe4290e69",
        "https://git.kernel.org/stable/c/468971c3f4b8187f25334503b68050a0e1370147",
        "https://git.kernel.org/stable/c/7629ef6dda1564098aadeef38e5fbd11ee8627c4",
        "https://git.kernel.org/stable/c/cf6a1d16c6df3c30b03f0c6a92a2ba7f86dffb45",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36882.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-36882",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/36xxx/CVE-2024-36882.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-36882",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 510716,
  "published_at": "2024-05-30T15:28:52.706+00:00"
}