btrfs: handle csum tree error with rescue=ibadroots correctly

{
  "id": "3946c67ef3a99967f4eda25e13e4c40fa541fbedae7a936b7b741c00fe5770b5",
  "url": "https://osv.dev/vulnerability/CVE-2025-38260",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "btrfs: handle csum tree error with rescue=ibadroots correctly",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: btrfs: handle csum tree error with rescue=ibadroots correctly [BUG] There is syzbot based reproducer that can crash the kernel, with the following call trace: (With some debug output added) DEBUG: rescue=ibadroots parsed BTRFS: device fsid 14d642db-7b15-43e4-81e6-4b8fac6a25f8 devid 1 transid 8 /dev/loop0 (7:0) scanned by repro (1010) BTRFS info (device loop0): first mount of filesystem 14d642db-7b15-43e4-81e6-4b8fac6a25f8 BTRFS info (device loop0): using blake2b (blake2b-256-generic) checksum algorithm BTRFS info (device loop0): using free-space-tree BTRFS warning (device loop0): checksum verify failed on logical 5312512 mirror 1 wanted 0xb043382657aede36608fd3386d6b001692ff406164733d94e2d9a180412c6003 found 0x810ceb2bacb7f0f9eb2bf3b2b15c02af867cb35ad450898169f3b1f0bd818651 level 0 DEBUG: read tree root path failed for tree csum, ret=-5 BTRFS warning (device loop0): checksum verify failed on logical 5328896 mirror 1 wanted 0x51be4e8b303da58e6340226815b70e3a93592dac3f30dd510c7517454de8567a found 0x51be4e8b303da58e634022a315b70e3a93592dac3f30dd510c7517454de8567a level 0 BTRFS warning (device loop0): checksum verify failed on logical 5292032 mirror 1 wanted 0x1924ccd683be9efc2fa98582ef58760e3848e9043db8649ee382681e220cdee4 found 0x0cb6184f6e8799d9f8cb335dccd1d1832da1071d12290dab3b85b587ecacca6e level 0 process 'repro' launched './file2' with NULL argv: empty string added DEBUG: no csum root, idatacsums=0 ibadroo",
    "evidence": "osv:CVE-2025-38260",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.143",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.96",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.36",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-38260",
      "aliases": [
        "CVE-2025-38260"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "abed4aaae4f71a7bcdbe90a65319b6e772a2689d"
                },
                {
                  "fixed": "f8ce11903211542a61f05c02caedd2edfb4256b8"
                },
                {
                  "fixed": "fc97a116dc4929905538bc0bd3af7faa51192957"
                },
                {
                  "fixed": "bbe9231fe611a54a447962494472f604419bad59"
                },
                {
                  "fixed": "3f5c4a996f8f4fecd24a3eb344a307c50af895c2"
                },
                {
                  "fixed": "547e836661554dcfa15c212a3821664e85b4191a"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38260.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.17.0"
                },
                {
                  "fixed": "6.1.143"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.96"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.36"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.15.5"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38260.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:23.633482859Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3f5c4a996f8f4fecd24a3eb344a307c50af895c2",
        "https://git.kernel.org/stable/c/547e836661554dcfa15c212a3821664e85b4191a",
        "https://git.kernel.org/stable/c/bbe9231fe611a54a447962494472f604419bad59",
        "https://git.kernel.org/stable/c/f8ce11903211542a61f05c02caedd2edfb4256b8",
        "https://git.kernel.org/stable/c/fc97a116dc4929905538bc0bd3af7faa51192957",
        "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38260.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38260",
        "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/2025/38xxx/CVE-2025-38260.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38260",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 489899,
  "published_at": "2025-07-09T10:42:36.204+00:00"
}