f2fs: prevent kernel warning due to negative i_nlink from corrupted image

{
  "id": "24de6f81a0eb5575f37a9c5eb938ff6a987385279d2d71a7f691cb79bae61b3d",
  "url": "https://osv.dev/vulnerability/CVE-2025-38219",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "f2fs: prevent kernel warning due to negative i_nlink from corrupted image",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: f2fs: prevent kernel warning due to negative i_nlink from corrupted image WARNING: CPU: 1 PID: 9426 at fs/inode.c:417 drop_nlink+0xac/0xd0 home/cc/linux/fs/inode.c:417 Modules linked in: CPU: 1 UID: 0 PID: 9426 Comm: syz-executor568 Not tainted 6.14.0-12627-g94d471a4f428 #2 PREEMPT(full) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.13.0-1ubuntu1.1 04/01/2014 RIP: 0010:drop_nlink+0xac/0xd0 home/cc/linux/fs/inode.c:417 Code: 48 8b 5d 28 be 08 00 00 00 48 8d bb 70 07 00 00 e8 f9 67 e6 ff f0 48 ff 83 70 07 00 00 5b 5d e9 9a 12 82 ff e8 95 12 82 ff 90 <0f> 0b 90 c7 45 48 ff ff ff ff 5b 5d e9 83 12 82 ff e8 fe 5f e6 ff RSP: 0018:ffffc900026b7c28 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8239710f RDX: ffff888041345a00 RSI: ffffffff8239717b RDI: 0000000000000005 RBP: ffff888054509ad0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: ffffffff9ab36f08 R12: ffff88804bb40000 R13: ffff8880545091e0 R14: 0000000000008000 R15: ffff8880545091e0 FS: 000055555d0c5880(0000) GS:ffff8880eb3e3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f915c55b178 CR3: 0000000050d20000 CR4: 0000000000352ef0 Call Trace: f2fs_i_links_write home/cc/linux/fs/f2fs/f2fs.h:3194 [inline] f2fs_drop_nlink+0xd1/0x3c0 home/cc/linux/fs/f2fs/dir.c:845 f2fs_delete_entry+0x542/0x1450 home/cc/linux/fs/f2fs/dir.c:909 f2fs_unlink+0x45c/0x890 home/cc/l",
    "evidence": "osv:CVE-2025-38219",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "5.4.295",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.10.239",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "5.15.186",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.1.142",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.6.95",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.12.35",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.15.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-38219",
      "aliases": [
        "CVE-2025-38219"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "introduced": "98e4da8ca301e062d79ae168c67e56f3c3de3ce4"
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                {
                  "fixed": "d9a55869d8237e677ddaa18b0f58586364cfbc1c"
                },
                {
                  "fixed": "1f6332872374b7f482fc4ad865f9422fedb587fc"
                },
                {
                  "fixed": "fbfe8446cd3274b9e367f5708d94574230a44409"
                },
                {
                  "fixed": "5018d035530b6fbfad33eeb1dd1bc87da419a276"
                },
                {
                  "fixed": "a87cbcc909ccfd394d4936a94663f586453d0961"
                },
                {
                  "fixed": "aaa644e7ffff02e12c89cbce4753bc0b6f23ff87"
                },
                {
                  "fixed": "d14cbed4baccd712447fb3f9c011f008b56b2097"
                },
                {
                  "fixed": "42cb74a92adaf88061039601ddf7c874f58b554e"
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              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38219.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "3.8.0"
                },
                {
                  "fixed": "5.4.295"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "5.10.239"
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              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.11.0"
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                {
                  "fixed": "5.15.186"
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                  "introduced": "5.16.0"
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                }
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            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.6.95"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.35"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-38219.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:42.462407697Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1f6332872374b7f482fc4ad865f9422fedb587fc",
        "https://git.kernel.org/stable/c/42cb74a92adaf88061039601ddf7c874f58b554e",
        "https://git.kernel.org/stable/c/5018d035530b6fbfad33eeb1dd1bc87da419a276",
        "https://git.kernel.org/stable/c/a87cbcc909ccfd394d4936a94663f586453d0961",
        "https://git.kernel.org/stable/c/aaa644e7ffff02e12c89cbce4753bc0b6f23ff87",
        "https://git.kernel.org/stable/c/d14cbed4baccd712447fb3f9c011f008b56b2097",
        "https://git.kernel.org/stable/c/d9a55869d8237e677ddaa18b0f58586364cfbc1c",
        "https://git.kernel.org/stable/c/fbfe8446cd3274b9e367f5708d94574230a44409",
        "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html",
        "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38219.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-38219",
        "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-2025-38219.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-38219",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 510263,
  "published_at": "2025-07-04T13:37:35.984+00:00"
}