block: Fix iterating over an empty bio with bio_for_each_folio_all

{
  "id": "b31c3e9233f5f9f17edf8dce966b3f959573b8a18a964f570e8fa2870cecbdc0",
  "url": "https://osv.dev/vulnerability/CVE-2024-26632",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "block: Fix iterating over an empty bio with bio_for_each_folio_all",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: block: Fix iterating over an empty bio with bio_for_each_folio_all If the bio contains no data, bio_first_folio() calls page_folio() on a NULL pointer and oopses. Move the test that we've reached the end of the bio from bio_next_folio() to bio_first_folio(). [axboe: add unlikely() to error case]",
    "evidence": "osv:CVE-2024-26632",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.75",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.14",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.7.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-26632",
      "aliases": [
        "CVE-2024-26632"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "640d1930bef4f87ec8d8d2b05f0f6edc1dfcf662"
                },
                {
                  "fixed": "c6350b5cb78e9024c49eaee6fdb914ad2903a5fe"
                },
                {
                  "fixed": "a6bd8182137a12d22d3f2cee463271bdcb491659"
                },
                {
                  "fixed": "ca3ede3f5893e2d26d4dbdef1eec28a8487fafde"
                },
                {
                  "fixed": "7bed6f3d08b7af27b7015da8dc3acf2b9c1f21d7"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26632.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.17.0"
                },
                {
                  "fixed": "6.1.75"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.14"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.7.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26632.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:26.198050026Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/7bed6f3d08b7af27b7015da8dc3acf2b9c1f21d7",
        "https://git.kernel.org/stable/c/a6bd8182137a12d22d3f2cee463271bdcb491659",
        "https://git.kernel.org/stable/c/c6350b5cb78e9024c49eaee6fdb914ad2903a5fe",
        "https://git.kernel.org/stable/c/ca3ede3f5893e2d26d4dbdef1eec28a8487fafde",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26632.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-26632",
        "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/2024/26xxx/CVE-2024-26632.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-26632",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 492713,
  "published_at": "2024-03-18T10:07:48.908+00:00"
}