erofs: fix missing xas_retry() in fscache mode

{
  "id": "d5217c8e383760f527d3ebb3bb52e55209a0fc0b14782367fdad90c9d0e16ddf",
  "url": "https://osv.dev/vulnerability/CVE-2022-49815",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "erofs: fix missing xas_retry() in fscache mode",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: erofs: fix missing xas_retry() in fscache mode The xarray iteration only holds the RCU read lock and thus may encounter XA_RETRY_ENTRY if there's process modifying the xarray concurrently. This will cause oops when referring to the invalid entry. Fix this by adding the missing xas_retry(), which will make the iteration wind back to the root node if XA_RETRY_ENTRY is encountered.",
    "evidence": "osv:CVE-2022-49815",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.0.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2022-49815",
      "aliases": [
        "CVE-2022-49815"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d435d53228dd039fffecae123b8c138af6f96f99"
                },
                {
                  "fixed": "dbc98fe99e17ed18f2f272d5fe880d844b1c68c3"
                },
                {
                  "fixed": "37020bbb71d911431e16c2c940b97cf86ae4f2f6"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49815.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.19.0"
                },
                {
                  "fixed": "6.0.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49815.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:51.392879230Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/37020bbb71d911431e16c2c940b97cf86ae4f2f6",
        "https://git.kernel.org/stable/c/dbc98fe99e17ed18f2f272d5fe880d844b1c68c3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49815.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-49815",
        "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/2022/49xxx/CVE-2022-49815.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2022-49815",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 519632,
  "published_at": "2025-05-01T14:09:39.016+00:00"
}