f2fs: compress: fix to call f2fs_wait_on_page_writeback() in f2fs_write_raw_pages()

{
  "id": "c26ecd8d21f4e053fb01bafc1df222d05d6d37165f38c4ea56f781e90ffc746d",
  "url": "https://osv.dev/vulnerability/CVE-2023-54068",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "f2fs: compress: fix to call f2fs_wait_on_page_writeback() in f2fs_write_raw_pages()",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: f2fs: compress: fix to call f2fs_wait_on_page_writeback() in f2fs_write_raw_pages() BUG_ON() will be triggered when writing files concurrently, because the same page is writtenback multiple times. 1597 void folio_end_writeback(struct folio *folio) 1598 { ...... 1618 if (!__folio_end_writeback(folio)) 1619 BUG(); ...... 1625 } kernel BUG at mm/filemap.c:1619! Call Trace: f2fs_write_end_io+0x1a0/0x370 blk_update_request+0x6c/0x410 blk_mq_end_request+0x15/0x130 blk_complete_reqs+0x3c/0x50 __do_softirq+0xb8/0x29b ? sort_range+0x20/0x20 run_ksoftirqd+0x19/0x20 smpboot_thread_fn+0x10b/0x1d0 kthread+0xde/0x110 ? kthread_complete_and_exit+0x20/0x20 ret_from_fork+0x22/0x30 Below is the concurrency scenario: [Process A] [Process B] [Process C] f2fs_write_raw_pages() - redirty_page_for_writepage() - unlock page() f2fs_do_write_data_page() - lock_page() - clear_page_dirty_for_io() - set_page_writeback() [1st writeback] ..... - unlock page() generic_perform_write() - f2fs_write_begin() - wait_for_stable_page() - f2fs_write_end() - set_page_dirty() - lock_page() - f2fs_do_write_data_page() - set_page_writeback() [2st writeback] This problem was introduced by the previous commit 7377e853967b (\"f2fs: compress: fix potential deadlock of compress file\"). All pagelocks were released in f2fs_write_raw_pages(), but whether the page was in the writeback state was ignored in the subsequent writing process. Let's fix it by waiting f",
    "evidence": "osv:CVE-2023-54068",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
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    "severity": "high",
    "structured": {
      "id": "CVE-2023-54068",
      "aliases": [
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      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
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      "modified": "2026-10-28T02:30:39.068842922Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/169134da419cb8ffbe3b0743bc24573e16952ea9",
        "https://git.kernel.org/stable/c/6604df2a9d07ba8f8fb1ac14046c2c83776faa4f",
        "https://git.kernel.org/stable/c/9940877c4fe752923a53f0f7372f2f152b6eccf0",
        "https://git.kernel.org/stable/c/a8226a45b2a9ce83ba7a167a387a00fecc319e71",
        "https://git.kernel.org/stable/c/ad31eed06c3b4d63b2d38322a271d4009aee4bb3",
        "https://git.kernel.org/stable/c/babedcbac164cec970872b8097401ca913a80e61",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54068.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-54068",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
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    "severity_evidence": "/severity/0/score"
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  "source_id": "core-osv",
  "document_id": 506750,
  "published_at": "2025-12-24T12:23:12.818+00:00"
}