f2fs: fix to avoid panic once fallocation fails for pinfile

{
  "id": "ea9d40e6bfa0f588aa16b6779d97285fa484c1d643dba1638e7168d608b4182d",
  "url": "https://osv.dev/vulnerability/CVE-2025-23130",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "f2fs: fix to avoid panic once fallocation fails for pinfile",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid panic once fallocation fails for pinfile syzbot reports a f2fs bug as below: ------------[ cut here ]------------ kernel BUG at fs/f2fs/segment.c:2746! CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted 6.13.0-rc2-syzkaller-00018-g7cb1b4663150 #0 RIP: 0010:get_new_segment fs/f2fs/segment.c:2746 [inline] RIP: 0010:new_curseg+0x1f52/0x1f70 fs/f2fs/segment.c:2876 Call Trace: __allocate_new_segment+0x1ce/0x940 fs/f2fs/segment.c:3210 f2fs_allocate_new_section fs/f2fs/segment.c:3224 [inline] f2fs_allocate_pinning_section+0xfa/0x4e0 fs/f2fs/segment.c:3238 f2fs_expand_inode_data+0x696/0xca0 fs/f2fs/file.c:1830 f2fs_fallocate+0x537/0xa10 fs/f2fs/file.c:1940 vfs_fallocate+0x569/0x6e0 fs/open.c:327 do_vfs_ioctl+0x258c/0x2e40 fs/ioctl.c:885 __do_sys_ioctl fs/ioctl.c:904 [inline] __se_sys_ioctl+0x80/0x170 fs/ioctl.c:892 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Concurrent pinfile allocation may run out of free section, result in panic in get_new_segment(), let's expand pin_sem lock coverage to include f2fs_gc(), so that we can make sure to reclaim enough free space for following allocation. In addition, do below changes to enhance error path handling: - call f2fs_bug_on() only in non-pinfile allocation path in get_new_segment(). - call reset_curseg_fields() to reset all fields of curseg in new_curseg()",
    "evidence": "osv:CVE-2025-23130",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.57",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.14.2",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2025-23130",
      "aliases": [
        "CVE-2025-23130"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "f5a53edcf01eae21dc3ef1845515229e8459e5cc"
                },
                {
                  "fixed": "2dda0930fb79b847b4bfceb737577d0f6bc24d7d"
                },
                {
                  "fixed": "9392862608d081a8346a3b841f862d732fce954b"
                },
                {
                  "fixed": "48ea8b200414ac69ea96f4c231f5c7ef1fbeffef"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-23130.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "5.5.0"
                },
                {
                  "fixed": "6.12.57"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.14.2"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-23130.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:24.003903505Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/2dda0930fb79b847b4bfceb737577d0f6bc24d7d",
        "https://git.kernel.org/stable/c/48ea8b200414ac69ea96f4c231f5c7ef1fbeffef",
        "https://git.kernel.org/stable/c/9392862608d081a8346a3b841f862d732fce954b",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/23xxx/CVE-2025-23130.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-23130",
        "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/2025/23xxx/CVE-2025-23130.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-23130",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 490376,
  "published_at": "2025-04-16T14:13:12.333+00:00"
}