nfsd: map the EBADMSG to nfserr_io to avoid warning

{
  "id": "b2512f8cdaf8644d45fdd39db433f93a490b7aa852f6bc2be125efb325e981b6",
  "url": "https://osv.dev/vulnerability/CVE-2024-49875",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "nfsd: map the EBADMSG to nfserr_io to avoid warning",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: nfsd: map the EBADMSG to nfserr_io to avoid warning Ext4 will throw -EBADMSG through ext4_readdir when a checksum error occurs, resulting in the following WARNING. Fix it by mapping EBADMSG to nfserr_io. nfsd_buffered_readdir iterate_dir // -EBADMSG -74 ext4_readdir // .iterate_shared ext4_dx_readdir ext4_htree_fill_tree htree_dirblock_to_tree ext4_read_dirblock __ext4_read_dirblock ext4_dirblock_csum_verify warn_no_space_for_csum __warn_no_space_for_csum return ERR_PTR(-EFSBADCRC) // -EBADMSG -74 nfserrno // WARNING [ 161.115610] ------------[ cut here ]------------ [ 161.116465] nfsd: non-standard errno: -74 [ 161.117315] WARNING: CPU: 1 PID: 780 at fs/nfsd/nfsproc.c:878 nfserrno+0x9d/0xd0 [ 161.118596] Modules linked in: [ 161.119243] CPU: 1 PID: 780 Comm: nfsd Not tainted 5.10.0-00014-g79679361fd5d #138 [ 161.120684] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qe mu.org 04/01/2014 [ 161.123601] RIP: 0010:nfserrno+0x9d/0xd0 [ 161.124676] Code: 0f 87 da 30 dd 00 83 e3 01 b8 00 00 00 05 75 d7 44 89 ee 48 c7 c7 c0 57 24 98 89 44 24 04 c6 05 ce 2b 61 03 01 e8 99 20 d8 00 <0f> 0b 8b 44 24 04 eb b5 4c 89 e6 48 c7 c7 a0 6d a4 99 e8 cc 15 33 [ 161.127797] RSP: 0018:ffffc90000e2f9c0 EFLAGS: 00010286 [ 161.128794] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 161.130089] RDX: 1ffff1103ee16f6d RSI: 0000000000000008 RDI: fffff520001c5f2a [ 161.1",
    "evidence": "osv:CVE-2024-49875",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.227",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.168",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.113",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.55",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.10.14",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.11.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "high",
    "structured": {
      "id": "CVE-2024-49875",
      "aliases": [
        "CVE-2024-49875"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/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": "6a797d2737838906f2ea0a31686e87c3151e21ca"
                },
                {
                  "fixed": "0ea4333c679f333e23956de743ad17387819d3f2"
                },
                {
                  "fixed": "825789ca94602543101045ad3aad19b2b60c6b2a"
                },
                {
                  "fixed": "6fe058502f8864649c3d614b06b2235223798f48"
                },
                {
                  "fixed": "f7d8ee9db94372b8235f5f22bb24381891594c42"
                },
                {
                  "fixed": "c76005adfa93d1a027433331252422078750321f"
                },
                {
                  "fixed": "e9cfecca22a36b927a440abc6307efb9e138fed5"
                },
                {
                  "fixed": "340e61e44c1d2a15c42ec72ade9195ad525fd048"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-49875.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "4.4.0"
                },
                {
                  "fixed": "5.10.227"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.168"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.113"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.55"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.10.14"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.11.0"
                },
                {
                  "fixed": "6.11.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-49875.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.755898704Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0ea4333c679f333e23956de743ad17387819d3f2",
        "https://git.kernel.org/stable/c/340e61e44c1d2a15c42ec72ade9195ad525fd048",
        "https://git.kernel.org/stable/c/6fe058502f8864649c3d614b06b2235223798f48",
        "https://git.kernel.org/stable/c/825789ca94602543101045ad3aad19b2b60c6b2a",
        "https://git.kernel.org/stable/c/c76005adfa93d1a027433331252422078750321f",
        "https://git.kernel.org/stable/c/e9cfecca22a36b927a440abc6307efb9e138fed5",
        "https://git.kernel.org/stable/c/f7d8ee9db94372b8235f5f22bb24381891594c42",
        "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html",
        "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49875.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2024-49875",
        "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/2024/49xxx/CVE-2024-49875.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2024-49875",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521528,
  "published_at": "2024-10-21T18:01:15.434+00:00"
}