Skip to content
Heist/ feed
Back to feed
UnratedFix available

f2fs: avoid format-overflow warning

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: f2fs: avoid format-overflow warning With gcc and W=1 option, there's a warning like this: fs/f2fs/compress.c: In function ‘f2fs_init_page_array_cache’: fs/f2fs/compress.c:1984:47: error: ‘%u’ directive writing between 1 and 7 bytes into a region of size between 5 and 8 [-Werror=format-overflow=] 1984 | sprintf(slab_name, "f2fs_page_array_entry-%u:%u", MAJOR(dev), MINOR(dev)); | ^~ String "f2fs_page_array_entry-%u:%u" can up to 35. The first "%u" can up to 4 and the second "%u" can up to 7, so total size is "24 + 4 + 7 = 35". slab_name's size should be 35 rather than 32.

Products
Kernel
Affected versions
Not specified
Fixed versions
5.10.202, 5.15.140, 6.1.64, 6.5.13, 6.6.3
CVEs
CVE-2023-52748
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 20:03 UTC · Revision 1

Source evidence

f2fs: avoid format-overflow warning

core-osv · Original source

Published 21 May 2024, 15:30 UTC

In the Linux kernel, the following vulnerability has been resolved: f2fs: avoid format-overflow warning With gcc and W=1 option, there's a warning like this: fs/f2fs/compress.c: In function ‘f2fs_init_page_array_cache’: fs/f2fs/compress.c:1984:47: error: ‘%u’ directive writing between 1 and 7 bytes into a region of size between 5 and 8 [-Werror=format-overflow=] 1984 | sprintf(slab_name, "f2fs_page_array_entry-%u:%u", MAJOR(dev), MINOR(dev)); | ^~ String "f2fs_page_array_entry-%u:%u" can up to 35. The first "%u" can up to 4 and the second "%u" can up to 7, so total size is "24 + 4 + 7 = 35". slab_name's size should be 35 rather than 32.

osv:CVE-2023-52748

Kernel

Fixed versions: 5.10.202, 5.15.140, 6.1.64, 6.5.13, 6.6.3

Complete source record
{
  "id": "24b3a490f56b057ef621dd4ccb0c474074017064543d5989fed234488aa5937f",
  "url": "https://osv.dev/vulnerability/CVE-2023-52748",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "f2fs: avoid format-overflow warning",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: f2fs: avoid format-overflow warning With gcc and W=1 option, there's a warning like this: fs/f2fs/compress.c: In function ‘f2fs_init_page_array_cache’: fs/f2fs/compress.c:1984:47: error: ‘%u’ directive writing between 1 and 7 bytes into a region of size between 5 and 8 [-Werror=format-overflow=] 1984 | sprintf(slab_name, \"f2fs_page_array_entry-%u:%u\", MAJOR(dev), MINOR(dev)); | ^~ String \"f2fs_page_array_entry-%u:%u\" can up to 35. The first \"%u\" can up to 4 and the second \"%u\" can up to 7, so total size is \"24 + 4 + 7 = 35\". slab_name's size should be 35 rather than 32.",
    "evidence": "osv:CVE-2023-52748",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.10.202",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.140",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.64",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.5.13",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.3",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-52748",
      "aliases": [
        "CVE-2023-52748"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "31083031709eea6530f0551d59eecdb2e68265ef"
                },
                {
                  "fixed": "c041f5ddef00c731c541e00bc8ae97b8c84c682f"
                },
                {
                  "fixed": "e4088d7d8f1123006d46a42edf51b8c960a58ef9"
                },
                {
                  "fixed": "526dd7540a09ecf87b5f54f3ab4e0a2528f25a79"
                },
                {
                  "fixed": "6fca08fd3085253b48fcb1bd243a0a5e18821a00"
                },
                {
                  "fixed": "3eebe636cac53886bd5d1cdd55e082ec9e84983f"
                },
                {
                  "fixed": "e0d4e8acb3789c5a8651061fbab62ca24a45c063"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52748.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.10.0"
                },
                {
                  "fixed": "5.10.202"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
                },
                {
                  "fixed": "5.15.140"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.16.0"
                },
                {
                  "fixed": "6.1.64"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.5.13"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.6.0"
                },
                {
                  "fixed": "6.6.3"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52748.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:39.217698267Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3eebe636cac53886bd5d1cdd55e082ec9e84983f",
        "https://git.kernel.org/stable/c/526dd7540a09ecf87b5f54f3ab4e0a2528f25a79",
        "https://git.kernel.org/stable/c/6fca08fd3085253b48fcb1bd243a0a5e18821a00",
        "https://git.kernel.org/stable/c/c041f5ddef00c731c541e00bc8ae97b8c84c682f",
        "https://git.kernel.org/stable/c/e0d4e8acb3789c5a8651061fbab62ca24a45c063",
        "https://git.kernel.org/stable/c/e4088d7d8f1123006d46a42edf51b8c960a58ef9",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52748.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-52748",
        "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/2023/52xxx/CVE-2023-52748.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-52748",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 506469,
  "published_at": "2024-05-21T15:30:38.229+00:00"
}