ext4: fix WARNING in mb_find_extent

{
  "id": "3d594da47137226c40d9f1e14df7c320265d938a77f986157e1c85a6e2dac1fe",
  "url": "https://osv.dev/vulnerability/CVE-2023-53317",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ext4: fix WARNING in mb_find_extent",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: ext4: fix WARNING in mb_find_extent Syzbot found the following issue: EXT4-fs: Warning: mounting with data=journal disables delayed allocation, dioread_nolock, O_DIRECT and fast_commit support! EXT4-fs (loop0): orphan cleanup on readonly fs ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5067 at fs/ext4/mballoc.c:1869 mb_find_extent+0x8a1/0xe30 Modules linked in: CPU: 1 PID: 5067 Comm: syz-executor307 Not tainted 6.2.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:mb_find_extent+0x8a1/0xe30 fs/ext4/mballoc.c:1869 RSP: 0018:ffffc90003c9e098 EFLAGS: 00010293 RAX: ffffffff82405731 RBX: 0000000000000041 RCX: ffff8880783457c0 RDX: 0000000000000000 RSI: 0000000000000041 RDI: 0000000000000040 RBP: 0000000000000040 R08: ffffffff82405723 R09: ffffed10053c9402 R10: ffffed10053c9402 R11: 1ffff110053c9401 R12: 0000000000000000 R13: ffffc90003c9e538 R14: dffffc0000000000 R15: ffffc90003c9e2cc FS: 0000555556665300(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056312f6796f8 CR3: 0000000022437000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_mb_complex_scan_group+0x353/0x1100 fs/ext4/mballoc.c:2307 ext4_mb_regular_allocator+0x1533/0x3860 fs/ext4/mballoc.c:27",
    "evidence": "osv:CVE-2023-53317",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.19.283",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.4.243",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.180",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.112",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.29",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.2.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.3.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2023-53317",
      "aliases": [
        "CVE-2023-53317"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "abcb2947c91130426539f209f7a473a67a1f6663"
                },
                {
                  "fixed": "775b00ba23f6f916fe2ac60c5ff7fd0fe4f28d0d"
                },
                {
                  "fixed": "1b90fbc7590124c57a2e590de7fd07eba26606f1"
                },
                {
                  "fixed": "5d356d902e9d5b1aaaaf2326d365340fa8a90c1b"
                },
                {
                  "fixed": "d55e76e11592a1d18a179c7fd34ca1b52632beb3"
                },
                {
                  "fixed": "dba62fa84a8eac44a53a2862de8a40e5bdfa0ae3"
                },
                {
                  "fixed": "e4d503c956a744cb59e509ca5f134cfad423c7a3"
                },
                {
                  "fixed": "dd45e536f47a82e0a405f9a4b6c7ceb367171ee9"
                },
                {
                  "fixed": "fa08a7b61dff8a4df11ff1e84abfc214b487caf7"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53317.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.25"
                },
                {
                  "fixed": "4.19.283"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.20.0"
                },
                {
                  "fixed": "5.4.243"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.180"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.112"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.29"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.2.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.3.0"
                },
                {
                  "fixed": "6.3.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53317.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.226307921Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1b90fbc7590124c57a2e590de7fd07eba26606f1",
        "https://git.kernel.org/stable/c/5d356d902e9d5b1aaaaf2326d365340fa8a90c1b",
        "https://git.kernel.org/stable/c/775b00ba23f6f916fe2ac60c5ff7fd0fe4f28d0d",
        "https://git.kernel.org/stable/c/d55e76e11592a1d18a179c7fd34ca1b52632beb3",
        "https://git.kernel.org/stable/c/dba62fa84a8eac44a53a2862de8a40e5bdfa0ae3",
        "https://git.kernel.org/stable/c/dd45e536f47a82e0a405f9a4b6c7ceb367171ee9",
        "https://git.kernel.org/stable/c/e4d503c956a744cb59e509ca5f134cfad423c7a3",
        "https://git.kernel.org/stable/c/fa08a7b61dff8a4df11ff1e84abfc214b487caf7",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53317.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-53317",
        "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/2023/53xxx/CVE-2023-53317.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-53317",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 518649,
  "published_at": "2025-09-16T16:11:53.877+00:00"
}